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992 commits

Author SHA1 Message Date
Marcelo Vanzin e1dd03e42c [SPARK-22372][CORE, YARN] Make cluster submission use SparkApplication.
The main goal of this change is to allow multiple cluster-mode
submissions from the same JVM, without having them end up with
mixed configuration. That is done by extending the SparkApplication
trait, and doing so was reasonably trivial for standalone and
mesos modes.

For YARN mode, there was a complication. YARN used a "SPARK_YARN_MODE"
system property to control behavior indirectly in a whole bunch of
places, mainly in the SparkHadoopUtil / YarnSparkHadoopUtil classes.
Most of the changes here are removing that.

Since we removed support for Hadoop 1.x, some methods that lived in
YarnSparkHadoopUtil can now live in SparkHadoopUtil. The remaining
methods don't need to be part of the class, and can be called directly
from the YarnSparkHadoopUtil object, so now there's a single
implementation of SparkHadoopUtil.

There were two places in the code that relied on  SPARK_YARN_MODE to
make decisions about YARN-specific functionality, and now explicitly check
the master from the configuration for that instead:

* fetching the external shuffle service port, which can come from the YARN
  configuration.

* propagation of the authentication secret using Hadoop credentials. This also
  was cleaned up a little to not need so many methods in `SparkHadoopUtil`.

With those out of the way, actually changing the YARN client
to extend SparkApplication was easy.

Tested with existing unit tests, and also by running YARN apps
with auth and kerberos both on and off in a real cluster.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #19631 from vanzin/SPARK-22372.
2017-12-04 11:05:03 -08:00
Marcelo Vanzin 8ff474f6e5 [SPARK-20650][CORE] Remove JobProgressListener.
The only remaining use of this class was the SparkStatusTracker, which
was modified to use the new status store. The test code to wait for
executors was moved to TestUtils and now uses the SparkStatusTracker API.

Indirectly, ConsoleProgressBar also uses this data. Because it has
some lower latency requirements, a shortcut to efficiently get the
active stages from the active listener was added to the AppStateStore.

Now that all UI code goes through the status store to get its data,
the FsHistoryProvider can be cleaned up to only replay event logs
when needed - that is, when there is no pre-existing disk store for
the application.

As part of this change I also modified the streaming UI to read the needed
data from the store, which was missed in the previous patch that made
JobProgressListener redundant.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #19750 from vanzin/SPARK-20650.
2017-11-29 14:34:41 -08:00
Yinan Li e9b2070ab2 [SPARK-18278][SCHEDULER] Spark on Kubernetes - Basic Scheduler Backend
## What changes were proposed in this pull request?

This is a stripped down version of the `KubernetesClusterSchedulerBackend` for Spark with the following components:
- Static Allocation of Executors
- Executor Pod Factory
- Executor Recovery Semantics

It's step 1 from the step-wise plan documented [here](https://github.com/apache-spark-on-k8s/spark/issues/441#issuecomment-330802935).
This addition is covered by the [SPIP vote](http://apache-spark-developers-list.1001551.n3.nabble.com/SPIP-Spark-on-Kubernetes-td22147.html) which passed on Aug 31 .

## How was this patch tested?

- The patch contains unit tests which are passing.
- Manual testing: `./build/mvn -Pkubernetes clean package` succeeded.
- It is a **subset** of the entire changelist hosted in http://github.com/apache-spark-on-k8s/spark which is in active use in several organizations.
- There is integration testing enabled in the fork currently [hosted by PepperData](spark-k8s-jenkins.pepperdata.org:8080) which is being moved over to RiseLAB CI.
- Detailed documentation on trying out the patch in its entirety is in: https://apache-spark-on-k8s.github.io/userdocs/running-on-kubernetes.html

cc rxin felixcheung mateiz (shepherd)
k8s-big-data SIG members & contributors: mccheah ash211 ssuchter varunkatta kimoonkim erikerlandson liyinan926 tnachen ifilonenko

Author: Yinan Li <liyinan926@gmail.com>
Author: foxish <ramanathana@google.com>
Author: mcheah <mcheah@palantir.com>

Closes #19468 from foxish/spark-kubernetes-3.
2017-11-28 23:02:09 -08:00
Sean Owen fba63c1a7b [SPARK-22607][BUILD] Set large stack size consistently for tests to avoid StackOverflowError
## What changes were proposed in this pull request?

Set `-ea` and `-Xss4m` consistently for tests, to fix in particular:

```
OrderingSuite:
...
- GenerateOrdering with ShortType
*** RUN ABORTED ***
java.lang.StackOverflowError:
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:370)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
at org.codehaus.janino.CodeContext.flowAnalysis(CodeContext.java:541)
...
```

## How was this patch tested?

Existing tests. Manually verified it resolves the StackOverflowError this intends to resolve.

Author: Sean Owen <sowen@cloudera.com>

Closes #19820 from srowen/SPARK-22607.
2017-11-26 07:42:44 -06:00
WeichenXu 774398045b [SPARK-21087][ML] CrossValidator, TrainValidationSplit expose sub models after fitting: Scala
## What changes were proposed in this pull request?

We add a parameter whether to collect the full model list when CrossValidator/TrainValidationSplit training (Default is NOT), avoid the change cause OOM)

- Add a method in CrossValidatorModel/TrainValidationSplitModel, allow user to get the model list

- CrossValidatorModelWriter add a “option”, allow user to control whether to persist the model list to disk (will persist by default).

- Note: when persisting the model list, use indices as the sub-model path

## How was this patch tested?

Test cases added.

Author: WeichenXu <weichen.xu@databricks.com>

Closes #19208 from WeichenXu123/expose-model-list.
2017-11-14 16:48:26 -08:00
Marcelo Vanzin 4741c07809 [SPARK-20648][CORE] Port JobsTab and StageTab to the new UI backend.
This change is a little larger because there's a whole lot of logic
behind these pages, all really tied to internal types and listeners,
and some of that logic had to be implemented in the new listener and
the needed data exposed through the API types.

- Added missing StageData and ExecutorStageSummary fields which are
  used by the UI. Some json golden files needed to be updated to account
  for new fields.

- Save RDD graph data in the store. This tries to re-use existing types as
  much as possible, so that the code doesn't need to be re-written. So it's
  probably not very optimal.

- Some old classes (e.g. JobProgressListener) still remain, since they're used
  in other parts of the code; they're not used by the UI anymore, though, and
  will be cleaned up in a separate change.

- Save information about active pools in the store. This data is not really used
  in the SHS, but it's not a lot of data so it's still recorded when replaying
  applications.

- Because the new store sorts things slightly differently from the previous
  code, some json golden files had some elements within them shuffled around.

- The retention unit test in UISeleniumSuite was disabled because the code
  to throw away old stages / tasks hasn't been added yet.

- The job description field in the API tries to follow the old behavior, which
  makes it be empty most of the time, even though there's information to fill it
  in. For stages, a new field was added to hold the description (which is basically
  the job description), so that the UI can be rendered in the old way.

- A new stage status ("SKIPPED") was added to account for the fact that the API
  couldn't represent that state before. Without this, the stage would show up as
  "PENDING" in the UI, which is now based on API types.

- The API used to expose "executorRunTime" as the value of the task's duration,
  which wasn't really correct (also because that value was easily available
  from the metrics object); this change fixes that by storing the correct duration,
  which also means a few expectation files needed to be updated to account for
  the new durations and sorting differences due to the changed values.

- Added changes to implement SPARK-20713 and SPARK-21922 in the new code.

Tested with existing unit tests (and by using the UI a lot).

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #19698 from vanzin/SPARK-20648.
2017-11-14 10:34:32 -06:00
Dongjoon Hyun 64c989495a [SPARK-22485][BUILD] Use exclude[Problem] instead excludePackage in MiMa
## What changes were proposed in this pull request?

`excludePackage` is deprecated like the [following](https://github.com/lightbend/migration-manager/blob/master/core/src/main/scala/com/typesafe/tools/mima/core/Filters.scala#L33-L36) and shows deprecation warnings now. This PR uses `exclude[Problem](packageName + ".*")` instead.

```scala
deprecated("Replace with ProblemFilters.exclude[Problem](\"my.package.*\")", "0.1.15")
def excludePackage(packageName: String): ProblemFilter = {
  exclude[Problem](packageName + ".*")
}
```

## How was this patch tested?

Pass the Jenkins MiMa.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #19710 from dongjoon-hyun/SPARK-22485.
2017-11-09 16:40:19 -08:00
Marcelo Vanzin 6ae12715c7 [SPARK-20647][CORE] Port StorageTab to the new UI backend.
This required adding information about StreamBlockId to the store,
which is not available yet via the API. So an internal type was added
until there's a need to expose that information in the API.

The UI only lists RDDs that have cached partitions, and that information
wasn't being correctly captured in the listener, so that's also fixed,
along with some minor (internal) API adjustments so that the UI can
get the correct data.

Because of the way partitions are cached, some optimizations w.r.t. how
often the data is flushed to the store could not be applied to this code;
because of that, some different ways to make the code more performant
were added to the data structures tracking RDD blocks, with the goal of
avoiding expensive copies when lots of blocks are being updated.

Tested with existing and updated unit tests.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #19679 from vanzin/SPARK-20647.
2017-11-09 15:46:16 -06:00
Marcelo Vanzin 11eea1a4ce [SPARK-20646][CORE] Port executors page to new UI backend.
The executors page is built on top of the REST API, so the page itself
was easy to hook up to the new code.

Some other pages depend on the `ExecutorListener` class that is being
removed, though, so they needed to be modified to use data from the
new store. Fortunately, all they seemed to need is the map of executor
logs, so that was somewhat easy too.

The executor timeline graph required adding some properties to the
ExecutorSummary API type. Instead of following the previous code,
which stored all the listener events in memory, the timeline is
now created based on the data available from the API.

I had to change some of the test golden files because the old code would
return executors in "random" order (since it used a mutable Map instead
of something that returns a sorted list), and the new code returns executors
in id order.

Tested with existing unit tests.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #19678 from vanzin/SPARK-20646.
2017-11-07 23:14:29 -06:00
Marcelo Vanzin 7475a9655c [SPARK-20645][CORE] Port environment page to new UI backend.
This change modifies the status listener to collect the information
needed to render the envionment page, and populates that page and the
API with information collected by the listener.

Tested with existing and added unit tests.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #19677 from vanzin/SPARK-20645.
2017-11-07 16:03:24 -06:00
Marcelo Vanzin c7f38e5adb [SPARK-20644][core] Initial ground work for kvstore UI backend.
There are two somewhat unrelated things going on in this patch, but
both are meant to make integration of individual UI pages later on
much easier.

The first part is some tweaking of the code in the listener so that
it does less updates of the kvstore for data that changes fast; for
example, it avoids writing changes down to the store for every
task-related event, since those can arrive very quickly at times.
Instead, for these kinds of events, it chooses to only flush things
if a certain interval has passed. The interval is based on how often
the current spark-shell code updates the progress bar for jobs, so
that users can get reasonably accurate data.

The code also delays as much as possible hitting the underlying kvstore
when replaying apps in the history server. This is to avoid unnecessary
writes to disk.

The second set of changes prepare the history server and SparkUI for
integrating with the kvstore. A new class, AppStatusStore, is used
for translating between the stored data and the types used in the
UI / API. The SHS now populates a kvstore with data loaded from
event logs when an application UI is requested.

Because this store can hold references to disk-based resources, the
code was modified to retrieve data from the store under a read lock.
This allows the SHS to detect when the store is still being used, and
only update it (e.g. because an updated event log was detected) when
there is no other thread using the store.

This change ended up creating a lot of churn in the ApplicationCache
code, which was cleaned up a lot in the process. I also removed some
metrics which don't make too much sense with the new code.

Tested with existing and added unit tests, and by making sure the SHS
still works on a real cluster.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #19582 from vanzin/SPARK-20644.
2017-11-06 08:45:40 -06:00
pj.fanning 1ff41d8693 [SPARK-21708][BUILD] update some sbt plugins
## What changes were proposed in this pull request?

These are just some straightforward upgrades to use the latest versions of some sbt plugins that also support sbt 1.0.
The remaining sbt plugins that need upgrading will require bigger changes.

## How was this patch tested?

Tested sbt use manually.

Author: pj.fanning <pj.fanning@workday.com>

Closes #19609 from pjfanning/SPARK-21708.
2017-10-31 08:16:54 +00:00
Marcelo Vanzin 0e9a750a8d [SPARK-20643][CORE] Add listener implementation to collect app state.
The initial listener code is based on the existing JobProgressListener (and others),
and tries to mimic their behavior as much as possible. The change also includes
some minor code movement so that some types and methods from the initial history
server code code can be reused.

The code introduces a few mutable versions of public API types, used internally,
to make it easier to update information without ugly copy methods, and also to
make certain updates cheaper.

Note the code here is not 100% correct. This is meant as a building ground for
the UI integration in the next milestones. As different parts of the UI are
ported, fixes will be made to the different parts of this code to account
for the needed behavior.

I also added annotations to API types so that Jackson is able to correctly
deserialize options, sequences and maps that store primitive types.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #19383 from vanzin/SPARK-20643.
2017-10-26 11:05:16 -05:00
Sean Owen 0c03297bf0 [SPARK-22142][BUILD][STREAMING] Move Flume support behind a profile, take 2
## What changes were proposed in this pull request?

Move flume behind a profile, take 2. See https://github.com/apache/spark/pull/19365 for most of the back-story.

This change should fix the problem by removing the examples module dependency and moving Flume examples to the module itself. It also adds deprecation messages, per a discussion on dev about deprecating for 2.3.0.

## How was this patch tested?

Existing tests, which still enable flume integration.

Author: Sean Owen <sowen@cloudera.com>

Closes #19412 from srowen/SPARK-22142.2.
2017-10-06 15:08:28 +01:00
gatorsmile 472864014c Revert "[SPARK-22142][BUILD][STREAMING] Move Flume support behind a profile"
This reverts commit a2516f41ae.
2017-09-29 11:45:58 -07:00
Sean Owen a2516f41ae [SPARK-22142][BUILD][STREAMING] Move Flume support behind a profile
## What changes were proposed in this pull request?

Add 'flume' profile to enable Flume-related integration modules

## How was this patch tested?

Existing tests; no functional change

Author: Sean Owen <sowen@cloudera.com>

Closes #19365 from srowen/SPARK-22142.
2017-09-29 08:26:53 +01:00
Sean Owen 4fbf748bf8 [SPARK-21893][BUILD][STREAMING][WIP] Put Kafka 0.8 behind a profile
## What changes were proposed in this pull request?

Put Kafka 0.8 support behind a kafka-0-8 profile.

## How was this patch tested?

Existing tests, but, until PR builder and Jenkins configs are updated the effect here is to not build or test Kafka 0.8 support at all.

Author: Sean Owen <sowen@cloudera.com>

Closes #19134 from srowen/SPARK-21893.
2017-09-13 10:10:40 +01:00
hyukjinkwon 64936c14a7 [SPARK-21903][BUILD][FOLLOWUP] Upgrade scalastyle-maven-plugin and scalastyle as well in POM and SparkBuild.scala
## What changes were proposed in this pull request?

This PR proposes to match scalastyle version in POM and SparkBuild.scala

## How was this patch tested?

Manual builds.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #19146 from HyukjinKwon/SPARK-21903-follow-up.
2017-09-06 23:28:12 +09:00
hyukjinkwon 7f3c6ff4ff [SPARK-21903][BUILD] Upgrade scalastyle to 1.0.0.
## What changes were proposed in this pull request?

1.0.0 fixes an issue with import order, explicit type for public methods, line length limitation and comment validation:

```
[error] .../spark/repl/scala-2.11/src/main/scala/org/apache/spark/repl/Main.scala:50:16: Are you sure you want to println? If yes, wrap the code block with
[error]       // scalastyle:off println
[error]       println(...)
[error]       // scalastyle:on println
[error] .../spark/repl/scala-2.11/src/main/scala/org/apache/spark/repl/SparkILoop.scala:49: File line length exceeds 100 characters
[error] .../spark/repl/scala-2.11/src/main/scala/org/apache/spark/repl/SparkILoop.scala:22:21: Are you sure you want to println? If yes, wrap the code block with
[error]       // scalastyle:off println
[error]       println(...)
[error]       // scalastyle:on println
[error] .../spark/streaming/src/test/java/org/apache/spark/streaming/JavaTestUtils.scala:35:6: Public method must have explicit type
[error] .../spark/streaming/src/test/java/org/apache/spark/streaming/JavaTestUtils.scala:51:6: Public method must have explicit type
[error] .../spark/streaming/src/test/java/org/apache/spark/streaming/JavaTestUtils.scala:93:15: Public method must have explicit type
[error] .../spark/streaming/src/test/java/org/apache/spark/streaming/JavaTestUtils.scala:98:15: Public method must have explicit type
[error] .../spark/streaming/src/test/java/org/apache/spark/streaming/JavaTestUtils.scala:47:2: Insert a space after the start of the comment
[error] .../spark/streaming/src/test/java/org/apache/spark/streaming/JavaTestUtils.scala:26:43: JavaDStream should come before JavaDStreamLike.
```

This PR also fixes the workaround added in SPARK-16877 for `org.scalastyle.scalariform.OverrideJavaChecker` feature, added from 0.9.0.

## How was this patch tested?

Manually tested.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #19116 from HyukjinKwon/scalastyle-1.0.0.
2017-09-05 19:40:05 +09:00
Sean Owen 12ab7f7e89 [SPARK-14280][BUILD][WIP] Update change-version.sh and pom.xml to add Scala 2.12 profiles and enable 2.12 compilation
…build; fix some things that will be warnings or errors in 2.12; restore Scala 2.12 profile infrastructure

## What changes were proposed in this pull request?

This change adds back the infrastructure for a Scala 2.12 build, but does not enable it in the release or Python test scripts.

In order to make that meaningful, it also resolves compile errors that the code hits in 2.12 only, in a way that still works with 2.11.

It also updates dependencies to the earliest minor release of dependencies whose current version does not yet support Scala 2.12. This is in a sense covered by other JIRAs under the main umbrella, but implemented here. The versions below still work with 2.11, and are the _latest_ maintenance release in the _earliest_ viable minor release.

- Scalatest 2.x -> 3.0.3
- Chill 0.8.0 -> 0.8.4
- Clapper 1.0.x -> 1.1.2
- json4s 3.2.x -> 3.4.2
- Jackson 2.6.x -> 2.7.9 (required by json4s)

This change does _not_ fully enable a Scala 2.12 build:

- It will also require dropping support for Kafka before 0.10. Easy enough, just didn't do it yet here
- It will require recreating `SparkILoop` and `Main` for REPL 2.12, which is SPARK-14650. Possible to do here too.

What it does do is make changes that resolve much of the remaining gap without affecting the current 2.11 build.

## How was this patch tested?

Existing tests and build. Manually tested with `./dev/change-scala-version.sh 2.12` to verify it compiles, modulo the exceptions above.

Author: Sean Owen <sowen@cloudera.com>

Closes #18645 from srowen/SPARK-14280.
2017-09-01 19:21:21 +01:00
WeichenXu 96028e36b4 [SPARK-17139][ML][FOLLOW-UP] Add convenient method asBinary for casting to BinaryLogisticRegressionSummary
## What changes were proposed in this pull request?

add an "asBinary" method to LogisticRegressionSummary for convenient casting to BinaryLogisticRegressionSummary.

## How was this patch tested?

Testcase updated.

Author: WeichenXu <weichen.xu@databricks.com>

Closes #19072 from WeichenXu123/mlor_summary_as_binary.
2017-08-31 16:22:40 -07:00
Weichen Xu c7270a46fc [SPARK-17139][ML] Add model summary for MultinomialLogisticRegression
## What changes were proposed in this pull request?

Add 4 traits, using the following hierarchy:
LogisticRegressionSummary
LogisticRegressionTrainingSummary: LogisticRegressionSummary
BinaryLogisticRegressionSummary: LogisticRegressionSummary
BinaryLogisticRegressionTrainingSummary: LogisticRegressionTrainingSummary, BinaryLogisticRegressionSummary

and the public method such as `def summary` only return trait type listed above.

and then implement 4 concrete classes:
LogisticRegressionSummaryImpl (multiclass case)
LogisticRegressionTrainingSummaryImpl (multiclass case)
BinaryLogisticRegressionSummaryImpl (binary case).
BinaryLogisticRegressionTrainingSummaryImpl (binary case).

## How was this patch tested?

Existing tests & added tests.

Author: WeichenXu <WeichenXu123@outlook.com>

Closes #15435 from WeichenXu123/mlor_summary.
2017-08-28 13:31:01 -07:00
Herman van Hovell 05af2de0fd [SPARK-21830][SQL] Bump ANTLR version and fix a few issues.
## What changes were proposed in this pull request?
This PR bumps the ANTLR version to 4.7, and fixes a number of small parser related issues uncovered by the bump.

The main reason for upgrading is that in some cases the current version of ANTLR (4.5) can exhibit exponential slowdowns if it needs to parse boolean predicates. For example the following query will take forever to parse:
```sql
SELECT *
FROM RANGE(1000)
WHERE
TRUE
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
AND NOT upper(DESCRIPTION) LIKE '%FOO%'
```

This is caused by a know bug in ANTLR (https://github.com/antlr/antlr4/issues/994), which was fixed in version 4.6.

## How was this patch tested?
Existing tests.

Author: Herman van Hovell <hvanhovell@databricks.com>

Closes #19042 from hvanhovell/SPARK-21830.
2017-08-24 16:33:55 -07:00
Peng Meng a0345cbebe [SPARK-21680][ML][MLLIB] optimize Vector compress
## What changes were proposed in this pull request?

When use Vector.compressed to change a Vector to SparseVector, the performance is very low comparing with Vector.toSparse.
This is because you have to scan the value three times using Vector.compressed, but you just need two times when use Vector.toSparse.
When the length of the vector is large, there is significant performance difference between this two method.

## How was this patch tested?

The existing UT

Author: Peng Meng <peng.meng@intel.com>

Closes #18899 from mpjlu/optVectorCompress.
2017-08-16 19:05:20 +01:00
Marcelo Vanzin 3f958a9992 [SPARK-21731][BUILD] Upgrade scalastyle to 0.9.
This version fixes a few issues in the import order checker; it provides
better error messages, and detects more improper ordering (thus the need
to change a lot of files in this patch). The main fix is that it correctly
complains about the order of packages vs. classes.

As part of the above, I moved some "SparkSession" import in ML examples
inside the "$example on$" blocks; that didn't seem consistent across
different source files to start with, and avoids having to add more on/off blocks
around specific imports.

The new scalastyle also seems to have a better header detector, so a few
license headers had to be updated to match the expected indentation.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #18943 from vanzin/SPARK-21731.
2017-08-15 13:59:00 -07:00
pj.fanning c0e333dbed [SPARK-21709][BUILD] sbt 0.13.16 and some plugin updates
## What changes were proposed in this pull request?

Update sbt version to 0.13.16. I think this is a useful stepping stone to getting to sbt 1.0.0.

## How was this patch tested?

Existing Build.

Author: pj.fanning <pj.fanning@workday.com>

Closes #18921 from pjfanning/SPARK-21709.
2017-08-12 20:01:20 +01:00
Takeshi Yamamuro b78cf13bf0 [SPARK-21276][CORE] Update lz4-java to the latest (v1.4.0)
## What changes were proposed in this pull request?
This pr updated `lz4-java` to the latest (v1.4.0) and removed custom `LZ4BlockInputStream`. We currently use custom `LZ4BlockInputStream` to read concatenated byte stream in shuffle. But, this functionality has been implemented in the latest lz4-java (https://github.com/lz4/lz4-java/pull/105). So, we might update the latest to remove the custom `LZ4BlockInputStream`.

Major diffs between the latest release and v1.3.0 in the master are as follows (62f7547abb...6d4693f562);
- fixed NPE in XXHashFactory similarly
- Don't place resources in default package to support shading
- Fixes ByteBuffer methods failing to apply arrayOffset() for array-backed
- Try to load lz4-java from java.library.path, then fallback to bundled
- Add ppc64le binary
- Add s390x JNI binding
- Add basic LZ4 Frame v1.5.0 support
- enable aarch64 support for lz4-java
- Allow unsafeInstance() for ppc64le archiecture
- Add unsafeInstance support for AArch64
- Support 64-bit JNI build on Solaris
- Avoid over-allocating a buffer
- Allow EndMark to be incompressible for LZ4FrameInputStream.
- Concat byte stream

## How was this patch tested?
Existing tests.

Author: Takeshi Yamamuro <yamamuro@apache.org>

Closes #18883 from maropu/SPARK-21276.
2017-08-09 17:31:52 +02:00
Marcelo Vanzin 979bf946d5 [SPARK-20655][CORE] In-memory KVStore implementation.
This change adds an in-memory implementation of KVStore that can be
used by the live UI.

The implementation is not fully optimized, neither for speed nor
space, but should be fast enough for using in the listener bus.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #18395 from vanzin/SPARK-20655.
2017-08-08 11:02:54 -07:00
Sean Owen e26dac5feb [SPARK-21415] Triage scapegoat warnings, part 1
## What changes were proposed in this pull request?

Address scapegoat warnings for:
- BigDecimal double constructor
- Catching NPE
- Finalizer without super
- List.size is O(n)
- Prefer Seq.empty
- Prefer Set.empty
- reverse.map instead of reverseMap
- Type shadowing
- Unnecessary if condition.
- Use .log1p
- Var could be val

In some instances like Seq.empty, I avoided making the change even where valid in test code to keep the scope of the change smaller. Those issues are concerned with performance and it won't matter for tests.

## How was this patch tested?

Existing tests

Author: Sean Owen <sowen@cloudera.com>

Closes #18635 from srowen/Scapegoat1.
2017-07-18 08:47:17 +01:00
Sean Owen 425c4ada4c [SPARK-19810][BUILD][CORE] Remove support for Scala 2.10
## What changes were proposed in this pull request?

- Remove Scala 2.10 build profiles and support
- Replace some 2.10 support in scripts with commented placeholders for 2.12 later
- Remove deprecated API calls from 2.10 support
- Remove usages of deprecated context bounds where possible
- Remove Scala 2.10 workarounds like ScalaReflectionLock
- Other minor Scala warning fixes

## How was this patch tested?

Existing tests

Author: Sean Owen <sowen@cloudera.com>

Closes #17150 from srowen/SPARK-19810.
2017-07-13 17:06:24 +08:00
jinxing 58434acdd8 [SPARK-19937] Collect metrics for remote bytes read to disk during shuffle.
In current code(https://github.com/apache/spark/pull/16989), big blocks are shuffled to disk.
This pr proposes to collect metrics for remote bytes fetched to disk.

Author: jinxing <jinxing6042@126.com>

Closes #18249 from jinxing64/SPARK-19937.
2017-06-22 14:10:51 -07:00
Marcelo Vanzin 0cba495120 [SPARK-20641][CORE] Add key-value store abstraction and LevelDB implementation.
This change adds an abstraction and LevelDB implementation for a key-value
store that will be used to store UI and SHS data.

The interface is described in KVStore.java (see javadoc). Specifics
of the LevelDB implementation are discussed in the javadocs of both
LevelDB.java and LevelDBTypeInfo.java.

Included also are a few small benchmarks just to get some idea of
latency. Because they're too slow for regular unit test runs, they're
disabled by default.

Tested with the included unit tests, and also as part of the overall feature
implementation (including running SHS with hundreds of apps).

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #17902 from vanzin/shs-ng/M1.
2017-06-06 13:39:10 -05:00
Yanbo Liang 0698e6c88c [SPARK-20606][ML] Revert "[] ML 2.2 QA: Remove deprecated methods for ML"
This reverts commit b8733e0ad9.

Author: Yanbo Liang <ybliang8@gmail.com>

Closes #17944 from yanboliang/spark-20606-revert.
2017-05-11 14:48:13 +08:00
Sanket 181261a81d [SPARK-20355] Add per application spark version on the history server headerpage
## What changes were proposed in this pull request?

Spark Version for a specific application is not displayed on the history page now. It should be nice to switch the spark version on the UI when we click on the specific application.
Currently there seems to be way as SparkListenerLogStart records the application version. So, it should be trivial to listen to this event and provision this change on the UI.
For Example
<img width="1439" alt="screen shot 2017-04-06 at 3 23 41 pm" src="https://cloud.githubusercontent.com/assets/8295799/25092650/41f3970a-2354-11e7-9b0d-4646d0adeb61.png">
<img width="1399" alt="screen shot 2017-04-17 at 9 59 33 am" src="https://cloud.githubusercontent.com/assets/8295799/25092743/9f9e2f28-2354-11e7-9605-f2f1c63f21fe.png">

{"Event":"SparkListenerLogStart","Spark Version":"2.0.0"}
(Please fill in changes proposed in this fix)
Modified the SparkUI for History server to listen to SparkLogListenerStart event and extract the version and print it.

## How was this patch tested?
Manual testing of UI page. Attaching the UI screenshot changes here

(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
(If this patch involves UI changes, please attach a screenshot; otherwise, remove this)

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: Sanket <schintap@untilservice-lm>

Closes #17658 from redsanket/SPARK-20355.
2017-05-09 09:30:09 -05:00
Yanbo Liang b8733e0ad9 [SPARK-20606][ML] ML 2.2 QA: Remove deprecated methods for ML
## What changes were proposed in this pull request?
Remove ML methods we deprecated in 2.1.

## How was this patch tested?
Existing tests.

Author: Yanbo Liang <ybliang8@gmail.com>

Closes #17867 from yanboliang/spark-20606.
2017-05-09 17:30:37 +08:00
Steve Loughran 2cf83c4783 [SPARK-7481][BUILD] Add spark-hadoop-cloud module to pull in object store access.
## What changes were proposed in this pull request?

Add a new `spark-hadoop-cloud` module and maven profile to pull in object store support from `hadoop-openstack`, `hadoop-aws` and `hadoop-azure` (Hadoop 2.7+) JARs, along with their dependencies, fixing up the dependencies so that everything works, in particular Jackson.

It restores `s3n://` access to S3, adds its `s3a://` replacement, OpenStack `swift://` and azure `wasb://`.

There's a documentation page, `cloud_integration.md`, which covers the basic details of using Spark with object stores, referring the reader to the supplier's own documentation, with specific warnings on security and the possible mismatch between a store's behavior and that of a filesystem. In particular, users are advised be very cautious when trying to use an object store as the destination of data, and to consult the documentation of the storage supplier and the connector.

(this is the successor to #12004; I can't re-open it)

## How was this patch tested?

Downstream tests exist in [https://github.com/steveloughran/spark-cloud-examples/tree/master/cloud-examples](https://github.com/steveloughran/spark-cloud-examples/tree/master/cloud-examples)

Those verify that the dependencies are sufficient to allow downstream applications to work with s3a, azure wasb and swift storage connectors, and perform basic IO & dataframe operations thereon. All seems well.

Manually clean build & verify that assembly contains the relevant aws-* hadoop-* artifacts on Hadoop 2.6; azure on a hadoop-2.7 profile.

SBT build: `build/sbt -Phadoop-cloud -Phadoop-2.7 package`
maven build `mvn install -Phadoop-cloud -Phadoop-2.7`

This PR *does not* update `dev/deps/spark-deps-hadoop-2.7` or `dev/deps/spark-deps-hadoop-2.6`, because unless the hadoop-cloud profile is enabled, no extra JARs show up in the dependency list. The dependency check in Jenkins isn't setting the property, so the new JARs aren't visible.

Author: Steve Loughran <stevel@apache.org>
Author: Steve Loughran <stevel@hortonworks.com>

Closes #17834 from steveloughran/cloud/SPARK-7481-current.
2017-05-07 10:15:31 +01:00
madhu 9064f1b044 [SPARK-20495][SQL][CORE] Add StorageLevel to cacheTable API
## What changes were proposed in this pull request?
Currently cacheTable API only supports MEMORY_AND_DISK. This PR adds additional API to take different storage levels.
## How was this patch tested?
unit tests

Author: madhu <phatak.dev@gmail.com>

Closes #17802 from phatak-dev/cacheTableAPI.
2017-05-05 22:44:03 +08:00
Josh Rosen f44c8a843c [SPARK-20453] Bump master branch version to 2.3.0-SNAPSHOT
This patch bumps the master branch version to `2.3.0-SNAPSHOT`.

Author: Josh Rosen <joshrosen@databricks.com>

Closes #17753 from JoshRosen/SPARK-20453.
2017-04-24 21:48:04 -07:00
hyukjinkwon 35378766ad [SPARK-20343][BUILD] Avoid Unidoc build only if Hadoop 2.6 is explicitly set in SBT build
## What changes were proposed in this pull request?

This PR proposes two things as below:

- Avoid Unidoc build only if Hadoop 2.6 is explicitly set in SBT build

  Due to a different dependency resolution in SBT & Unidoc by an unknown reason, the documentation build fails on a specific machine & environment in Jenkins but it was unable to reproduce.

  So, this PR just checks an environment variable `AMPLAB_JENKINS_BUILD_PROFILE` that is set in Hadoop 2.6 SBT build against branches on Jenkins, and then disables Unidoc build. **Note that PR builder will still build it with Hadoop 2.6 & SBT.**

  ```
  ========================================================================
  Building Unidoc API Documentation
  ========================================================================
  [info] Building Spark unidoc (w/Hive 1.2.1) using SBT with these arguments:  -Phadoop-2.6 -Pmesos -Pkinesis-asl -Pyarn -Phive-thriftserver -Phive unidoc
  Using /usr/java/jdk1.8.0_60 as default JAVA_HOME.
  ...
  ```

  I checked the environment variables from the logs (first bit) as below:

  - **spark-master-test-sbt-hadoop-2.6** (this one is being failed) - https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-master-test-sbt-hadoop-2.6/lastBuild/consoleFull

  ```
  JAVA_HOME=/usr/java/jdk1.8.0_60
  JAVA_7_HOME=/usr/java/jdk1.7.0_79
  SPARK_BRANCH=master
  AMPLAB_JENKINS_BUILD_PROFILE=hadoop2.6   <- I use this variable
  AMPLAB_JENKINS="true"
  ```
  - spark-master-test-sbt-hadoop-2.7 - https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-master-test-sbt-hadoop-2.7/lastBuild/consoleFull

  ```
  JAVA_HOME=/usr/java/jdk1.8.0_60
  JAVA_7_HOME=/usr/java/jdk1.7.0_79
  SPARK_BRANCH=master
  AMPLAB_JENKINS_BUILD_PROFILE=hadoop2.7
  AMPLAB_JENKINS="true"
  ```

  - spark-master-test-maven-hadoop-2.6 - https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-master-test-maven-hadoop-2.6/lastBuild/consoleFull

  ```
  JAVA_HOME=/usr/java/jdk1.8.0_60
  JAVA_7_HOME=/usr/java/jdk1.7.0_79
  HADOOP_PROFILE=hadoop-2.6
  HADOOP_VERSION=
  SPARK_BRANCH=master
  AMPLAB_JENKINS="true"
  ```

  - spark-master-test-maven-hadoop-2.7 - https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-master-test-maven-hadoop-2.7/lastBuild/consoleFull

  ```
  JAVA_HOME=/usr/java/jdk1.8.0_60
  JAVA_7_HOME=/usr/java/jdk1.7.0_79
  HADOOP_PROFILE=hadoop-2.7
  HADOOP_VERSION=
  SPARK_BRANCH=master
  AMPLAB_JENKINS="true"
  ```

  - PR builder - https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/75843/consoleFull

  ```
  JENKINS_MASTER_HOSTNAME=amp-jenkins-master
  JAVA_HOME=/usr/java/jdk1.8.0_60
  JAVA_7_HOME=/usr/java/jdk1.7.0_79
  ```

  Assuming from other logs in branch-2.1

    - SBT & Hadoop 2.6 against branch-2.1 https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.1-test-sbt-hadoop-2.6/lastBuild/consoleFull

      ```
      JAVA_HOME=/usr/java/jdk1.8.0_60
      JAVA_7_HOME=/usr/java/jdk1.7.0_79
      SPARK_BRANCH=branch-2.1
      AMPLAB_JENKINS_BUILD_PROFILE=hadoop2.6
      AMPLAB_JENKINS="true"
      ```

    - Maven & Hadoop 2.6 against branch-2.1 https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-branch-2.1-test-maven-hadoop-2.6/lastBuild/consoleFull

      ```
      JAVA_HOME=/usr/java/jdk1.8.0_60
      JAVA_7_HOME=/usr/java/jdk1.7.0_79
      HADOOP_PROFILE=hadoop-2.6
      HADOOP_VERSION=
      SPARK_BRANCH=branch-2.1
      AMPLAB_JENKINS="true"
      ```

  We have been using the same convention for those variables. These are actually being used in `run-tests.py` script - here https://github.com/apache/spark/blob/master/dev/run-tests.py#L519-L520

- Revert the previous try

  After https://github.com/apache/spark/pull/17651, it seems the build still fails on SBT Hadoop 2.6 master.

  I am unable to reproduce this - https://github.com/apache/spark/pull/17477#issuecomment-294094092 and the reviewer was too. So, this got merged as it looks the only way to verify this is to merge it currently (as no one seems able to reproduce this).

## How was this patch tested?

I only checked `is_hadoop_version_2_6 = os.environ.get("AMPLAB_JENKINS_BUILD_PROFILE") == "hadoop2.6"` is working fine as expected as below:

```python
>>> import collections
>>> os = collections.namedtuple('os', 'environ')(environ={"AMPLAB_JENKINS_BUILD_PROFILE": "hadoop2.6"})
>>> print(not os.environ.get("AMPLAB_JENKINS_BUILD_PROFILE") == "hadoop2.6")
False
>>> os = collections.namedtuple('os', 'environ')(environ={"AMPLAB_JENKINS_BUILD_PROFILE": "hadoop2.7"})
>>> print(not os.environ.get("AMPLAB_JENKINS_BUILD_PROFILE") == "hadoop2.6")
True
>>> os = collections.namedtuple('os', 'environ')(environ={})
>>> print(not os.environ.get("AMPLAB_JENKINS_BUILD_PROFILE") == "hadoop2.6")
True
```

I tried many ways but I was unable to reproduce this in my local. Sean also tried the way I did but he was also unable to reproduce this.

Please refer the comments in https://github.com/apache/spark/pull/17477#issuecomment-294094092

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #17669 from HyukjinKwon/revert-SPARK-20343.
2017-04-19 12:18:54 +01:00
hyukjinkwon d4f10cbbe1 [SPARK-20343][BUILD] Force Avro 1.7.7 in sbt build to resolve build failure in SBT Hadoop 2.6 master on Jenkins
## What changes were proposed in this pull request?

This PR proposes to force Avro's version to 1.7.7 in core to resolve the build failure as below:

```
[error] /home/jenkins/workspace/spark-master-test-sbt-hadoop-2.6/core/src/main/scala/org/apache/spark/serializer/GenericAvroSerializer.scala:123: value createDatumWriter is not a member of org.apache.avro.generic.GenericData
[error]     writerCache.getOrElseUpdate(schema, GenericData.get.createDatumWriter(schema))
[error]
```

https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-master-test-sbt-hadoop-2.6/2770/consoleFull

Note that this is a hack and should be removed in the future.

## How was this patch tested?

I only tested this actually overrides the dependency.

I tried many ways but I was unable to reproduce this in my local. Sean also tried the way I did but he was also unable to reproduce this.

Please refer the comments in https://github.com/apache/spark/pull/17477#issuecomment-294094092

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #17651 from HyukjinKwon/SPARK-20343-sbt.
2017-04-18 11:05:00 +01:00
jerryshao a4491626ed [SPARK-17019][CORE] Expose on-heap and off-heap memory usage in various places
## What changes were proposed in this pull request?

With [SPARK-13992](https://issues.apache.org/jira/browse/SPARK-13992), Spark supports persisting data into off-heap memory, but the usage of on-heap and off-heap memory is not exposed currently, it is not so convenient for user to monitor and profile, so here propose to expose off-heap memory as well as on-heap memory usage in various places:
1. Spark UI's executor page will display both on-heap and off-heap memory usage.
2. REST request returns both on-heap and off-heap memory.
3. Also this can be gotten from MetricsSystem.
4. Last this usage can be obtained programmatically from SparkListener.

Attach the UI changes:

![screen shot 2016-08-12 at 11 20 44 am](https://cloud.githubusercontent.com/assets/850797/17612032/6c2f4480-607f-11e6-82e8-a27fb8cbb4ae.png)

Backward compatibility is also considered for event-log and REST API. Old event log can still be replayed with off-heap usage displayed as 0. For REST API, only adds the new fields, so JSON backward compatibility can still be kept.
## How was this patch tested?

Unit test added and manual verification.

Author: jerryshao <sshao@hortonworks.com>

Closes #14617 from jerryshao/SPARK-17019.
2017-04-06 13:23:54 -05:00
sethah e8810b73c4
[SPARK-17471][ML] Add compressed method to ML matrices
## What changes were proposed in this pull request?

This patch adds a `compressed` method to ML `Matrix` class, which returns the minimal storage representation of the matrix - either sparse or dense. Because the space occupied by a sparse matrix is dependent upon its layout (i.e. column major or row major), this method must consider both cases. It may also be useful to force the layout to be column or row major beforehand, so an overload is added which takes in a `columnMajor: Boolean` parameter.

The compressed implementation relies upon two new abstract methods `toDense(columnMajor: Boolean)` and `toSparse(columnMajor: Boolean)`, similar to the compressed method implemented in the `Vector` class. These methods also allow the layout of the resulting matrix to be specified via the `columnMajor` parameter. More detail on the new methods is given below.
## How was this patch tested?

Added many new unit tests
## New methods (summary, not exhaustive list)

**Matrix trait**
- `private[ml] def toDenseMatrix(columnMajor: Boolean): DenseMatrix` (abstract) - converts the matrix (either sparse or dense) to dense format
- `private[ml] def toSparseMatrix(columnMajor: Boolean): SparseMatrix` (abstract) -  converts the matrix (either sparse or dense) to sparse format
- `def toDense: DenseMatrix = toDense(true)`  - converts the matrix (either sparse or dense) to dense format in column major layout
- `def toSparse: SparseMatrix = toSparse(true)` -  converts the matrix (either sparse or dense) to sparse format in column major layout
- `def compressed: Matrix` - finds the minimum space representation of this matrix, considering both column and row major layouts, and converts it
- `def compressed(columnMajor: Boolean): Matrix` - finds the minimum space representation of this matrix considering only column OR row major, and converts it

**DenseMatrix class**
- `private[ml] def toDenseMatrix(columnMajor: Boolean): DenseMatrix` - converts the dense matrix to a dense matrix, optionally changing the layout (data is NOT duplicated if the layouts are the same)
- `private[ml] def toSparseMatrix(columnMajor: Boolean): SparseMatrix` - converts the dense matrix to sparse matrix, using the specified layout

**SparseMatrix class**
- `private[ml] def toDenseMatrix(columnMajor: Boolean): DenseMatrix` - converts the sparse matrix to a dense matrix, using the specified layout
- `private[ml] def toSparseMatrix(columnMajors: Boolean): SparseMatrix` - converts the sparse matrix to sparse matrix. If the sparse matrix contains any explicit zeros, they are removed. If the layout requested does not match the current layout, data is copied to a new representation. If the layouts match and no explicit zeros exist, the current matrix is returned.

Author: sethah <seth.hendrickson16@gmail.com>

Closes #15628 from sethah/matrix_compress.
2017-03-24 20:32:42 +00:00
Eric Liang 8e558041aa [SPARK-19820][CORE] Add interface to kill tasks w/ a reason
This commit adds a killTaskAttempt method to SparkContext, to allow users to
kill tasks so that they can be re-scheduled elsewhere.

This also refactors the task kill path to allow specifying a reason for the task kill. The reason is propagated opaquely through events, and will show up in the UI automatically as `(N killed: $reason)` and `TaskKilled: $reason`. Without this change, there is no way to provide the user feedback through the UI.

Currently used reasons are "stage cancelled", "another attempt succeeded", and "killed via SparkContext.killTask". The user can also specify a custom reason through `SparkContext.killTask`.

cc rxin

In the stage overview UI the reasons are summarized:
![1](https://cloud.githubusercontent.com/assets/14922/23929209/a83b2862-08e1-11e7-8b3e-ae1967bbe2e5.png)

Within the stage UI you can see individual task kill reasons:
![2](https://cloud.githubusercontent.com/assets/14922/23929200/9a798692-08e1-11e7-8697-72b27ad8a287.png)

Existing tests, tried killing some stages in the UI and verified the messages are as expected.

Author: Eric Liang <ekl@databricks.com>
Author: Eric Liang <ekl@google.com>

Closes #17166 from ericl/kill-reason.
2017-03-23 23:30:44 -07:00
Tyson Condie 746a558de2 [SPARK-19876][SS][WIP] OneTime Trigger Executor
## What changes were proposed in this pull request?

An additional trigger and trigger executor that will execute a single trigger only. One can use this OneTime trigger to have more control over the scheduling of triggers.

In addition, this patch requires an optimization to StreamExecution that logs a commit record at the end of successfully processing a batch. This new commit log will be used to determine the next batch (offsets) to process after a restart, instead of using the offset log itself to determine what batch to process next after restart; using the offset log to determine this would process the previously logged batch, always, thus not permitting a OneTime trigger feature.

## How was this patch tested?

A number of existing tests have been revised. These tests all assumed that when restarting a stream, the last batch in the offset log is to be re-processed. Given that we now have a commit log that will tell us if that last batch was processed successfully, the results/assumptions of those tests needed to be revised accordingly.

In addition, a OneTime trigger test was added to StreamingQuerySuite, which tests:
- The semantics of OneTime trigger (i.e., on start, execute a single batch, then stop).
- The case when the commit log was not able to successfully log the completion of a batch before restart, which would mean that we should fall back to what's in the offset log.
- A OneTime trigger execution that results in an exception being thrown.

marmbrus tdas zsxwing

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: Tyson Condie <tcondie@gmail.com>
Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #17219 from tcondie/stream-commit.
2017-03-23 14:32:05 -07:00
Shixiong Zhu 029e40b412 [SPARK-19874][BUILD] Hide API docs for org.apache.spark.sql.internal
## What changes were proposed in this pull request?

The API docs should not include the "org.apache.spark.sql.internal" package because they are internal private APIs.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #17217 from zsxwing/SPARK-19874.
2017-03-08 23:15:52 -08:00
VinceShieh 4a9034b173 [SPARK-17498][ML] StringIndexer enhancement for handling unseen labels
## What changes were proposed in this pull request?
This PR is an enhancement to ML StringIndexer.
Before this PR, String Indexer only supports "skip"/"error" options to deal with unseen records.
But those unseen records might still be useful and user would like to keep the unseen labels in
certain use cases, This PR enables StringIndexer to support keeping unseen labels as
indices [numLabels].

'''Before
StringIndexer().setHandleInvalid("skip")
StringIndexer().setHandleInvalid("error")
'''After
support the third option "keep"
StringIndexer().setHandleInvalid("keep")

## How was this patch tested?
Test added in StringIndexerSuite

Signed-off-by: VinceShieh <vincent.xieintel.com>
(Please fill in changes proposed in this fix)

Author: VinceShieh <vincent.xie@intel.com>

Closes #16883 from VinceShieh/spark-17498.
2017-03-07 11:24:20 -08:00
Imran Rashid 8417a7ae6c [SPARK-19276][CORE] Fetch Failure handling robust to user error handling
## What changes were proposed in this pull request?

Fault-tolerance in spark requires special handling of shuffle fetch
failures.  The Executor would catch FetchFailedException and send a
special msg back to the driver.

However, intervening user code could intercept that exception, and wrap
it with something else.  This even happens in SparkSQL.  So rather than
checking the thrown exception only, we'll store the fetch failure directly
in the TaskContext, where users can't touch it.

## How was this patch tested?

Added a test case which failed before the fix.  Full test suite via jenkins.

Author: Imran Rashid <irashid@cloudera.com>

Closes #16639 from squito/SPARK-19276.
2017-03-02 16:46:01 -08:00
Marcelo Vanzin 17d83e1ee5 [SPARK-19652][UI] Do auth checks for REST API access.
The REST API has a security filter that performs auth checks
based on the UI root's security manager. That works fine when
the UI root is the app's UI, but not when it's the history server.

In the SHS case, all users would be allowed to see all applications
through the REST API, even if the UI itself wouldn't be available
to them.

This change adds auth checks for each app access through the API
too, so that only authorized users can see the app's data.

The change also modifies the existing security filter to use
`HttpServletRequest.getRemoteUser()`, which is used in other
places. That is not necessarily the same as the principal's
name; for example, when using Hadoop's SPNEGO auth filter,
the remote user strips the realm information, which then matches
the user name registered as the owner of the application.

I also renamed the UIRootFromServletContext trait to a more generic
name since I'm using it to store more context information now.

Tested manually with an authentication filter enabled.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #16978 from vanzin/SPARK-19652.
2017-02-21 16:14:34 -08:00
Sean Owen df3cbe3a33
[SPARK-19550][BUILD][WIP] Addendum: select Java 1.7 for scalac 2.10, still
## What changes were proposed in this pull request?

Go back to selecting source/target 1.7 for Scala 2.10 builds, because the SBT-based build for 2.10 won't work otherwise.

## How was this patch tested?

Existing tests, but, we need to verify this vs what the SBT build would exactly run on Jenkins

Author: Sean Owen <sowen@cloudera.com>

Closes #16983 from srowen/SPARK-19550.3.
2017-02-19 04:24:11 -08:00
Sean Owen 0e2405490f
[SPARK-19550][BUILD][CORE][WIP] Remove Java 7 support
- Move external/java8-tests tests into core, streaming, sql and remove
- Remove MaxPermGen and related options
- Fix some reflection / TODOs around Java 8+ methods
- Update doc references to 1.7/1.8 differences
- Remove Java 7/8 related build profiles
- Update some plugins for better Java 8 compatibility
- Fix a few Java-related warnings

For the future:

- Update Java 8 examples to fully use Java 8
- Update Java tests to use lambdas for simplicity
- Update Java internal implementations to use lambdas

## How was this patch tested?

Existing tests

Author: Sean Owen <sowen@cloudera.com>

Closes #16871 from srowen/SPARK-19493.
2017-02-16 12:32:45 +00:00