### What changes were proposed in this pull request?
Minor changes to change the config key name from `spark.shuffle.server.mergedShuffleFileManagerImpl` to `spark.shuffle.push.server.mergedShuffleFileManagerImpl`. This is missed out in https://github.com/apache/spark/pull/33615.
### Why are the changes needed?
To keep the config names consistent
### Does this PR introduce _any_ user-facing change?
Yes, this is a change in the config key name. But the new config name changes are yet to be released. Technically there is no user facing change because of this change.
### How was this patch tested?
Existing tests.
Closes#33799 from venkata91/SPARK-36374-follow-up.
Authored-by: Venkata krishnan Sowrirajan <vsowrirajan@linkedin.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit 7b2842e986)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
Instead of exiting the executor within the RpcEnv's thread, exit the executor in a separate thread.
### Why are the changes needed?
The current exit way in `onDisconnected` can cause the deadlock, which has the exact same root cause with https://github.com/apache/spark/pull/12012:
* `onDisconnected` -> `System.exit` are called in sequence in the thread of `MessageLoop.threadpool`
* `System.exit` triggers shutdown hooks and `executor.stop` is one of the hooks.
* `executor.stop` stops the `Dispatcher`, which waits for the `MessageLoop.threadpool` to shutdown further.
* Thus, the thread which runs `System.exit` waits for hooks to be done, but the `MessageLoop.threadpool` in the hook waits that thread to finish. Finally, this mutual dependence results in the deadlock.
### Does this PR introduce _any_ user-facing change?
Yes, the executor shutdown won't hang.
### How was this patch tested?
Pass existing tests.
Closes#33759 from Ngone51/fix-executor-shutdown-hang.
Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
(cherry picked from commit 996551fece)
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
### What changes were proposed in this pull request?
Add a new type of error message in BlockPushErrorHandler which indicates the PushblockStream message is received after a new application attempt has started. This error message should be correctly handled in client without retrying the block push.
### Why are the changes needed?
When we get a block push failure because of the too old attempt, we will not retry pushing the block nor log the exception on the client side.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Add the corresponding unit test.
Closes#33617 from zhuqi-lucas/master.
Authored-by: zhuqi-lucas <821684824@qq.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit 05cd5f97c3)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
The current `MapOutputTracker` class may throw `NegativeArraySizeException` with a large number of partitions. Within the serializeOutputStatuses() method, it is trying to compress an array of mapStatuses and outputting the binary data into (Apache)ByteArrayOutputStream . Inside the (Apache)ByteArrayOutputStream.toByteArray(), negative index exception happens because the index is int and overflows (2GB limit) when the output binary size is too large.
This PR proposes two high-level ideas:
1. Use `org.apache.spark.util.io.ChunkedByteBufferOutputStream`, which has a way to output the underlying buffer as `Array[Array[Byte]]`.
2. Change the signatures from `Array[Byte]` to `Array[Array[Byte]]` in order to handle over 2GB compressed data.
### Why are the changes needed?
This issue seems to be missed out in the earlier effort of addressing 2GB limitations [SPARK-6235](https://issues.apache.org/jira/browse/SPARK-6235)
Without this fix, `spark.default.parallelism` needs to be kept at the low number. The drawback of setting smaller spark.default.parallelism is that it requires more executor memory (more data per partition). Setting `spark.io.compression.zstd.level` to higher number (default 1) hardly helps.
That essentially means we have the data size limit that for shuffling and does not scale.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Passed existing tests
```
build/sbt "core/testOnly org.apache.spark.MapOutputTrackerSuite"
```
Also added a new unit test
```
build/sbt "core/testOnly org.apache.spark.MapOutputTrackerSuite -- -z SPARK-32210"
```
Ran the benchmark using GitHub Actions and didn't not observe any performance penalties. The results are attached in this PR
```
core/benchmarks/MapStatusesSerDeserBenchmark-jdk11-results.txt
core/benchmarks/MapStatusesSerDeserBenchmark-results.txt
```
Closes#33721 from kazuyukitanimura/SPARK-32210.
Authored-by: Kazuyuki Tanimura <ktanimura@apple.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
(cherry picked from commit 8ee464cd7a)
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
### What changes were proposed in this pull request?
Document the push-based shuffle feature with a high level overview of the feature and corresponding configuration options for both shuffle server side as well as client side. This is how the changes to the doc looks on the browser ([img](https://user-images.githubusercontent.com/8871522/129231582-ad86ee2f-246f-4b42-9528-4ccd693e86d2.png))
### Why are the changes needed?
Helps users understand the feature
### Does this PR introduce _any_ user-facing change?
Docs
### How was this patch tested?
N/A
Closes#33615 from venkata91/SPARK-36374.
Authored-by: Venkata krishnan Sowrirajan <vsowrirajan@linkedin.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit 2270ecf32f)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
fix string interpolator
### Why are the changes needed?
To log the correct stage info.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Pass existed tests.
Closes#33738 from Ngone51/fix.
Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit a47ceaf549)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
### What changes were proposed in this pull request?
When a task thread is interrupted, the underlying output stream referred by `DiskBlockObjectWriter.mcs` may have been closed, then we get IOException when flushing the buffered data. This breaks the assumption that `revertPartialWritesAndClose()` should not throw exceptions.
To fix the issue, we can catch the IOException in `ManualCloseOutputStream.manualClose()`.
### Why are the changes needed?
Previously the IOException was not captured, thus `revertPartialWritesAndClose()` threw an exception. When this happens, `BypassMergeSortShuffleWriter.stop()` would stop deleting the temp_shuffle files tracked by `partitionWriters`, hens lead to temp_shuffle file leak issues.
### Does this PR introduce _any_ user-facing change?
No, this is an internal bug fix.
### How was this patch tested?
Tested by running a longevity stress test. After the fix, there is no more leaked temp_shuffle files.
Closes#33731 from jiangxb1987/temp_shuffle.
Authored-by: Xingbo Jiang <xingbo.jiang@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit ec5f3a17e3)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
We have run performance evaluations on the version of push-based shuffle committed to upstream so far, and have identified a few places for further improvements:
1. On the server side, we have noticed that the usage of `String.format`, especially when receiving a block push request, has a much higher overhead compared with string concatenation.
2. On the server side, the usage of `Throwables.getStackTraceAsString` in the `ErrorHandler.shouldRetryError` and `ErrorHandler.shouldLogError` has generated quite some overhead.
These 2 issues are related to how we are currently handling certain common block push failures.
We are communicating such failures via `RPCFailure` by transmitting the exception stack trace.
This generates the overhead on both server and client side for creating these exceptions and makes checking the type of failures fragile and inefficient with string matching of exception stack trace.
To address these, this PR also proposes to encode the common block push failure as an error code and send that back to the client with a proper RPC message.
Improve shuffle service efficiency for push-based shuffle.
Improve code robustness for handling block push failures.
No
Existing unit tests.
Closes#33613 from Victsm/SPARK-36378.
Lead-authored-by: Min Shen <mshen@linkedin.com>
Co-authored-by: Min Shen <victor.nju@gmail.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit 3f09093a21)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
The `size` method of `ChunkedByteBufferOutputStream` returns a `Long` value; however, the underlying `_size` variable is initialized as `Int`.
That causes an overflow and returns a negative size when over 2GB data is written into `ChunkedByteBufferOutputStream`
This PR proposes to change the underlying `_size` variable from `Int` to `Long` at the initialization
### Why are the changes needed?
Be cause the `size` method of `ChunkedByteBufferOutputStream` incorrectly returns a negative value when over 2GB data is written.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Passed existing tests
```
build/sbt "core/testOnly *ChunkedByteBufferOutputStreamSuite"
```
Also added a new unit test
```
build/sbt "core/testOnly *ChunkedByteBufferOutputStreamSuite – -z SPARK-36464"
```
Closes#33690 from kazuyukitanimura/SPARK-36464.
Authored-by: Kazuyuki Tanimura <ktanimura@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
(cherry picked from commit c888bad6a1)
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
### What changes were proposed in this pull request?
On the client side, we are currently randomizing the order of push requests before processing each request. In addition we can further randomize the order of blocks within each push request before pushing them.
In our benchmark, this has resulted in a 60%-70% reduction of blocks that fail to be merged due to bock collision (the existing block merge ratio is already pretty good in general, and this further improves it).
### Why are the changes needed?
Improve block merge ratio for push-based shuffle
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Straightforward small change, no additional test needed.
Closes#33649 from Victsm/SPARK-36423.
Lead-authored-by: Min Shen <mshen@linkedin.com>
Co-authored-by: Min Shen <victor.nju@gmail.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit 6e729515fd)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
Add doc for the shuffle checksum configs in `configuration.md`.
### Why are the changes needed?
doc
### Does this PR introduce _any_ user-facing change?
No, since Spark 3.2 hasn't been released.
### How was this patch tested?
Pass existed tests.
Closes#33637 from Ngone51/SPARK-36384.
Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit 3b92c721b5)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
### What changes were proposed in this pull request?
This PR aims to skip rolling event log directories which has only `appstatus` file.
### Why are the changes needed?
Currently, Spark History server shows `IllegalArgumentException` warning, but the event log might arrive later. The situation also can happen when the job is killed before uploading its first log to the remote storages like S3.
```
21/07/30 07:38:26 WARN FsHistoryProvider:
Error while reading new log s3a://.../eventlog_v2_spark-95b5c736c8e44037afcf152534d08771
java.lang.IllegalArgumentException: requirement failed:
Log directory must contain at least one event log file!
...
at org.apache.spark.deploy.history.RollingEventLogFilesFileReader.files$lzycompute(EventLogFileReaders.scala:216)
```
### Does this PR introduce _any_ user-facing change?
Yes. Users will not see `IllegalArgumentException` warnings.
### How was this patch tested?
Pass the CIs with the newly added test case.
Closes#33586 from dongjoon-hyun/SPARK-36354.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Jungtaek Lim <kabhwan.opensource@gmail.com>
(cherry picked from commit 28a2a2238f)
Signed-off-by: Jungtaek Lim <kabhwan.opensource@gmail.com>
### What changes were proposed in this pull request?
Fix `NullPointerException` in `Executor.stop()`.
### Why are the changes needed?
Some initialization steps could fail before the initialization of `metricsPoller`, `heartbeater`, `threadPool`, which results in the null of `metricsPoller`, `heartbeater`, `threadPool`. For example, I encountered a failure of:
c20af53580/core/src/main/scala/org/apache/spark/executor/Executor.scala (L137)
where the executor itself failed to register at the driver.
This PR helps to eliminate the error messages when the issue happens to not confuse users:
<details>
<summary><mark><font color=darkred>[click to see the detailed error message]</font></mark></summary>
<pre>
21/07/23 16:04:10 WARN Executor: Unable to stop executor metrics poller
java.lang.NullPointerException
at org.apache.spark.executor.Executor.stop(Executor.scala:318)
at org.apache.spark.executor.Executor.$anonfun$stopHookReference$1(Executor.scala:76)
at org.apache.spark.util.SparkShutdownHook.run(ShutdownHookManager.scala:214)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$2(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:2025)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$1(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.util.Try$.apply(Try.scala:213)
at org.apache.spark.util.SparkShutdownHookManager.runAll(ShutdownHookManager.scala:188)
at org.apache.spark.util.SparkShutdownHookManager$$anon$2.run(ShutdownHookManager.scala:178)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
21/07/23 16:04:10 WARN Executor: Unable to stop heartbeater
java.lang.NullPointerException
at org.apache.spark.executor.Executor.stop(Executor.scala:324)
at org.apache.spark.executor.Executor.$anonfun$stopHookReference$1(Executor.scala:76)
at org.apache.spark.util.SparkShutdownHook.run(ShutdownHookManager.scala:214)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$2(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:2025)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$1(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.util.Try$.apply(Try.scala:213)
at org.apache.spark.util.SparkShutdownHookManager.runAll(ShutdownHookManager.scala:188)
at org.apache.spark.util.SparkShutdownHookManager$$anon$2.run(ShutdownHookManager.scala:178)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
21/07/23 16:04:10 ERROR Utils: Uncaught exception in thread shutdown-hook-0
java.lang.NullPointerException
at org.apache.spark.executor.Executor.$anonfun$stop$3(Executor.scala:334)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.util.Utils$.withContextClassLoader(Utils.scala:231)
at org.apache.spark.executor.Executor.stop(Executor.scala:334)
at org.apache.spark.executor.Executor.$anonfun$stopHookReference$1(Executor.scala:76)
at org.apache.spark.util.SparkShutdownHook.run(ShutdownHookManager.scala:214)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$2(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:2025)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$1(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.util.Try$.apply(Try.scala:213)
at org.apache.spark.util.SparkShutdownHookManager.runAll(ShutdownHookManager.scala:188)
at org.apache.spark.util.SparkShutdownHookManager$$anon$2.run(ShutdownHookManager.scala:178)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
</pre>
</details>
### Does this PR introduce _any_ user-facing change?
Yes, users won't see error messages of `NullPointerException` after this fix.
### How was this patch tested?
Pass existing tests.
Closes#33620 from Ngone51/spark-36383-3.2.
Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
### What changes were proposed in this pull request?
With SPARK-32922, we added a change that ShuffleBlockId can have a negative mapId. This was to support push-based shuffle where -1 as mapId indicated a push-merged block. However with SPARK-32923, a different type of BlockId was introduced - ShuffleMergedId, but reverting the change to ShuffleBlockId was missed.
### Why are the changes needed?
This reverts the changes to `ShuffleBlockId` which will never have a negative mapId.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Modified the unit test to verify the newly added ShuffleMergedBlockId.
Closes#33616 from otterc/SPARK-36389.
Authored-by: Chandni Singh <singh.chandni@gmail.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
(cherry picked from commit 2712343a27)
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
### What changes were proposed in this pull request?
Adds ANSI/ISO SQLSTATE standards to the error guidelines.
### Why are the changes needed?
Provides visibility and consistency to the SQLSTATEs assigned to error classes.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Not needed; docs only
Closes#33560 from karenfeng/sqlstate-manual.
Authored-by: Karen Feng <karen.feng@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit 63517eb430)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
### What changes were proposed in this pull request?
This PR adds support to diagnose shuffle data corruption. Basically, the diagnosis mechanism works like this:
The shuffler reader would calculate the checksum (c1) for the corrupted shuffle block and send it to the server where the block is stored. At the server, it would read back the checksum (c2) that is stored in the checksum file and recalculate the checksum (c3) for the corresponding shuffle block. Then, if c2 != c3, we suspect the corruption is caused by the disk issue. Otherwise, if c1 != c3, we suspect the corruption is caused by the network issue. Otherwise, the checksum verifies pass. In any case of the error, the cause remains unknown.
After the shuffle reader receives the diagnosis response, it'd take the action bases on the type of cause. Only in case of the network issue, we'd give a retry. Otherwise, we'd throw the fetch failure directly. Also note that, if the corruption happens inside BufferReleasingInputStream, the reducer will throw the fetch failure immediately no matter what the cause is since the data has been partially consumed by downstream RDDs. If corruption happens again after retry, the reducer will throw the fetch failure directly this time without the diagnosis.
Please check out https://github.com/apache/spark/pull/32385 to see the completed proposal of the shuffle checksum project.
### Why are the changes needed?
Shuffle data corruption is a long-standing issue in Spark. For example, in SPARK-18105, people continually reports corruption issue. However, data corruption is difficult to reproduce in most cases and even harder to tell the root cause. We don't know if it's a Spark issue or not. With the diagnosis support for the shuffle corruption, Spark itself can at least distinguish the cause between disk and network, which is very important for users.
### Does this PR introduce _any_ user-facing change?
Yes, users may know the cause of the shuffle corruption after this change.
### How was this patch tested?
Added tests.
Closes#33451 from Ngone51/SPARK-36206.
Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit a98d919da4)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
[[SPARK-23243](https://issues.apache.org/jira/browse/SPARK-23243)] and [[SPARK-25341](https://issues.apache.org/jira/browse/SPARK-25341)] addressed cases of stage retries for indeterminate stage involving operations like repartition. This PR addresses the same issues in the context of push-based shuffle. Currently there is no way to distinguish the current execution of a stage for a shuffle ID. Therefore the changes explained below are necessary.
Core changes are summarized as follows:
1. Introduce a new variable `shuffleMergeId` in `ShuffleDependency` which is monotonically increasing value tracking the temporal ordering of execution of <stage-id, stage-attempt-id> for a shuffle ID.
2. Correspondingly make changes in the push-based shuffle protocol layer in `MergedShuffleFileManager`, `BlockStoreClient` passing the `shuffleMergeId` in order to keep track of the shuffle output in separate files on the shuffle service side.
3. `DAGScheduler` increments the `shuffleMergeId` tracked in `ShuffleDependency` in the cases of a indeterministic stage execution
4. Deterministic stage will have `shuffleMergeId` set to 0 as no special handling is needed in this case and indeterminate stage will have `shuffleMergeId` starting from 1.
New protocol changes are needed due to the reasons explained above.
No
Added new unit tests in `RemoteBlockPushResolverSuite, DAGSchedulerSuite, BlockIdSuite, ErrorHandlerSuite`
Closes#33034 from venkata91/SPARK-32923.
Authored-by: Venkata krishnan Sowrirajan <vsowrirajan@linkedin.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit c039d99812)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
SPARK-32919 added support for fetching shuffle push merger locations with push-based shuffle. Filter out driver host in the shuffle push merger locations as driver won't participate in the shuffle merge also fix ClassCastException in the RemoveShufflePushMergerLocations.
### Why are the changes needed?
No
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Added unit tests.
Closes#33425 from venkata91/SPARK-32919-follow-up.
Authored-by: Venkata krishnan Sowrirajan <vsowrirajan@linkedin.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit 2a18f82940)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
Just to fix some typos in ShuffleBlockPusher class.
### Why are the changes needed?
Fix the typos, make code clear.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
No need test.
Closes#33575 from zhuqi-lucas/master.
Authored-by: zhuqi-lucas <821684824@qq.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit 900b38d5fa)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
### What changes were proposed in this pull request?
This is a follow-up to #29855 according to the [comments](https://github.com/apache/spark/pull/29855/files#r505536514)
In this PR, the following changes are made:
1. A new `BlockPushingListener` interface is created specifically for block push. The existing `BlockFetchingListener` interface is left as is, since it might be used by external shuffle solutions. These 2 interfaces are unified under `BlockTransferListener` to enable code reuse.
2. `RetryingBlockFetcher`, `BlockFetchStarter`, and `RetryingBlockFetchListener` are renamed to `RetryingBlockTransferor`, `BlockTransferStarter`, and `RetryingBlockTransferListener` respectively. This makes their names more generic to be reused across both block fetch and push.
3. Comments in `OneForOneBlockPusher` are further clarified to better explain how we handle retries for block push.
### Why are the changes needed?
To make code cleaner without sacrificing backward compatibility.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Existing unit tests.
Closes#33340 from Victsm/SPARK-32915-followup.
Lead-authored-by: Min Shen <mshen@linkedin.com>
Co-authored-by: Min Shen <victor.nju@gmail.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit c4aa54ed4e)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
This PR proposes to rename:
- Rename `*Reader`/`*reader` to `*Read`/`*read` for rules and execution plan (user-facing doc/config name remain untouched)
- `*ShuffleReaderExec` ->`*ShuffleReadExec`
- `isLocalReader` -> `isLocalRead`
- ...
- Rename `CustomShuffle*` prefix to `AQEShuffle*`
- Rename `OptimizeLocalShuffleReader` rule to `OptimizeShuffleWithLocalRead`
### Why are the changes needed?
There are multiple problems in the current naming:
- `CustomShuffle*` -> `AQEShuffle*`
it sounds like it is a pluggable API. However, this is actually only used by AQE.
- `OptimizeLocalShuffleReader` -> `OptimizeShuffleWithLocalRead`
it is the name of a rule but it can be misread as a reader, which is counterintuative
- `*ReaderExec` -> `*ReadExec`
Reader execution reads a bit odd. It should better be read execution (like `ScanExec`, `ProjectExec` and `FilterExec`). I can't find the reason to name it with something that performs an action. See also the generated plans:
Before:
```
...
* HashAggregate (12)
+- CustomShuffleReader (11)
+- ShuffleQueryStage (10)
+- Exchange (9)
...
```
After:
```
...
* HashAggregate (12)
+- AQEShuffleRead (11)
+- ShuffleQueryStage (10)
+- Exchange (9)
..
```
### Does this PR introduce _any_ user-facing change?
No, internal refactoring.
### How was this patch tested?
Existing unittests should cover the changes.
Closes#33429 from HyukjinKwon/SPARK-36217.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
(cherry picked from commit 6e3d404cec)
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
### What changes were proposed in this pull request?
`ShuffleMapTask` should not push blocks if a shuffle is already merge finalized. Currently block push is disabled for retry cases. Also fix `shuffleMergeFinalized` calling `rdd.getNumPartitions` as RDD is not serialized causing issues.
### Why are the changes needed?
No
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Existing tests
Closes#33426 from venkata91/SPARK-32920-follow-up.
Authored-by: Venkata krishnan Sowrirajan <vsowrirajan@linkedin.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit ba1a7ce5ec)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
Call `shuffleMergeFinalizeScheduler.shutdownNow()` in `DAGScheduler.stop()`.
### Why are the changes needed?
Avoid the thread leak.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Pass existing tests.
Closes#33495 from Ngone51/SPARK-32920-followup.
Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
(cherry picked from commit 21450b3254)
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
### What changes were proposed in this pull request?
Once the shuffle is cleaned up by the `ContextCleaner`, the shuffle files are deleted by the executors. In this case, the push of the shuffle data by the executors can throw `FileNotFoundException`s because the shuffle files are deleted. When this exception is thrown from the `shuffle-block-push-thread`, it causes the executor to exit. Both the `shuffle-block-push` threads and the netty event-loops will encounter `FileNotFoundException`s in this case. The fix here stops these threads from pushing more blocks when they encounter `FileNotFoundException`. When the exception is from the `shuffle-block-push-thread`, it will get handled and logged as warning instead of failing the executor.
### Why are the changes needed?
This fixes the bug which causes executor to exits when they are instructed to clean up shuffle data.
Below is the stacktrace of this exception:
```
21/06/17 16:03:57 ERROR util.SparkUncaughtExceptionHandler: Uncaught exception in thread Thread[block-push-thread-1,5,main]
java.lang.Error: java.io.IOException: Error in opening FileSegmentManagedBuffer
{file=********/application_1619720975011_11057757/blockmgr-560cb4cf-9918-4ea7-a007-a16c5e3a35fe/0a/shuffle_1_690_0.data, offset=10640, length=190}
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1155)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Error in opening FileSegmentManagedBuffer\{file=*******/application_1619720975011_11057757/blockmgr-560cb4cf-9918-4ea7-a007-a16c5e3a35fe/0a/shuffle_1_690_0.data, offset=10640, length=190}
at org.apache.spark.network.buffer.FileSegmentManagedBuffer.nioByteBuffer(FileSegmentManagedBuffer.java:89)
at org.apache.spark.shuffle.ShuffleWriter.sliceReqBufferIntoBlockBuffers(ShuffleWriter.scala:294)
at org.apache.spark.shuffle.ShuffleWriter.org$apache$spark$shuffle$ShuffleWriter$$sendRequest(ShuffleWriter.scala:270)
at org.apache.spark.shuffle.ShuffleWriter.org$apache$spark$shuffle$ShuffleWriter$$pushUpToMax(ShuffleWriter.scala:191)
at org.apache.spark.shuffle.ShuffleWriter$$anon$2$$anon$4.run(ShuffleWriter.scala:244)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
... 2 more
Caused by: java.io.FileNotFoundException: ******/application_1619720975011_11057757/blockmgr-560cb4cf-9918-4ea7-a007-a16c5e3a35fe/0a/shuffle_1_690_0.data (No such file or directory)
at java.io.RandomAccessFile.open0(Native Method)
at java.io.RandomAccessFile.open(RandomAccessFile.java:316)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:243)
at org.apache.spark.network.buffer.FileSegmentManagedBuffer.nioByteBuffer(FileSegmentManagedBuffer.java:62)
```
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Added a unit to verify no more data is pushed when `FileNotFoundException` is encountered. Have also verified in our environment.
Closes#33477 from otterc/SPARK-36255.
Authored-by: Chandni Singh <singh.chandni@gmail.com>
Signed-off-by: yi.wu <yi.wu@databricks.com>
(cherry picked from commit 09e1c61272)
Signed-off-by: yi.wu <yi.wu@databricks.com>
### What changes were proposed in this pull request?
The main change of this pr is move `writer.close()` before `success = true` to ensure spill file closed before set `success = true` in `ExternalSorter.spillMemoryIteratorToDisk` method.
### Why are the changes needed?
Avoid setting `success = true` first and then failure of close spill file
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
- Pass the Jenkins or GitHub Action
- Add a new Test case to check `The spill file should not exists if writer close fails`
Closes#33460 from LuciferYang/external-sorter-spill-close.
Authored-by: yangjie01 <yangjie01@baidu.com>
Signed-off-by: yi.wu <yi.wu@databricks.com>
(cherry picked from commit f61d5993ea)
Signed-off-by: yi.wu <yi.wu@databricks.com>
### What changes were proposed in this pull request?
GHA probably doesn't have the same resources as jenkins so move down from 5 to 3 execs and give a bit more time for them to come up.
### Why are the changes needed?
Test is timing out in GHA
### Does this PR introduce _any_ user-facing change?
No, test only change.
### How was this patch tested?
Run through GHA verify no OOM during WorkerDecommissionExtended
Closes#33467 from holdenk/SPARK-36246-WorkerDecommissionExtendedSuite-flakes-in-GHA.
Lead-authored-by: Holden Karau <holden@pigscanfly.ca>
Co-authored-by: Holden Karau <hkarau@netflix.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit 89a83196ac)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
### What changes were proposed in this pull request?
1. add "closeStreams" to FileAppender and RollingFileAppender
2. set "closeStreams" to "true" in ExecutorRunner
### Why are the changes needed?
The executor will hang when due disk full or other exceptions which happened in writting to outputStream: the root cause is the "inputStream" is not closed after the error happens:
1. ExecutorRunner creates two files appenders for pipe: one for stdout, one for stderr
2. FileAppender.appendStreamToFile exits the loop when writing to outputStream
3. FileAppender closes the outputStream, but left the inputStream which refers the pipe's stdout and stderr opened
4. The executor will hang when printing the log message if the pipe is full (no one consume the outputs)
5. From the driver side, you can see the task can't be completed for ever
With this fix, the step 4 will throw an exception, the driver can catch up the exception and reschedule the failed task to other executors.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Add new tests for the "closeStreams" in FileAppenderSuite
Closes#33263 from jhu-chang/SPARK-35027.
Authored-by: Jie <gt.hu.chang@gmail.com>
Signed-off-by: Sean Owen <srowen@gmail.com>
(cherry picked from commit 1a8c6755a1)
Signed-off-by: Sean Owen <srowen@gmail.com>
### What changes were proposed in this pull request?
This is one of the patches for SPIP SPARK-30602 which is needed for push-based shuffle.
### Summary of the change:
When Executor registers with Shuffle Service, it will encode the merged shuffle dir created and also the application attemptId into the ShuffleManagerMeta into Json. Then in Shuffle Service, it will decode the Json string and get the correct merged shuffle dir and also the attemptId. If the registration comes from a newer attempt, the merged shuffle information will be updated to store the information from the newer attempt.
This PR also refactored the management of the merged shuffle information to avoid concurrency issues.
### Why are the changes needed?
Refer to the SPIP in SPARK-30602.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Added unit tests.
The reference PR with the consolidated changes covering the complete implementation is also provided in SPARK-30602.
We have already verified the functionality and the improved performance as documented in the SPIP doc.
Closes#33078 from zhouyejoe/SPARK-35546.
Authored-by: Ye Zhou <yezhou@linkedin.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit c77acf0bbc)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
According to the discussion on https://github.com/apache/spark/pull/32283 , this PR aims to limit the feature of SPARK-34674 to K8s environment only.
### Why are the changes needed?
To reduce the behavior change in non-K8s environment.
### Does this PR introduce _any_ user-facing change?
The change behavior is consistent with 3.1.1 and older Spark releases.
### How was this patch tested?
N/A
Closes#33403 from dongjoon-hyun/SPARK-36193.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
(cherry picked from commit fd3e9ce0b9)
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
### What changes were proposed in this pull request?
Below 2 bugs were introduced with https://github.com/apache/spark/pull/32140
1. Instead of requesting the local-dirs for push-merged-local blocks from the ESS, `PushBasedFetchHelper` requests it from other executors. Push-based shuffle is only enabled when the ESS is enabled so it should always fetch the dirs from the ESS and not from other executors which is not yet supported.
2. The size of the push-merged blocks is logged incorrectly.
### Why are the changes needed?
This fixes the above mentioned bugs and is needed for push-based shuffle to work properly.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Tested this by running an application on the cluster. The UTs mock the call `hostLocalDirManager.getHostLocalDirs` which is why didn't catch (1) with the UT. However, the fix is trivial and checking this in the UT will require a lot more effort so I haven't modified it in the UT.
Logs of the executor with the bug
```
21/07/15 15:42:46 WARN ExternalBlockStoreClient: Error while trying to get the host local dirs for [shuffle-push-merger]
21/07/15 15:42:46 WARN PushBasedFetchHelper: Error while fetching the merged dirs for push-merged-local blocks: shuffle_0_-1_13. Fetch the original blocks instead
java.lang.RuntimeException: java.lang.IllegalStateException: Invalid executor id: shuffle-push-merger, expected 92.
at org.apache.spark.network.netty.NettyBlockRpcServer.receive(NettyBlockRpcServer.scala:130)
at org.apache.spark.network.server.TransportRequestHandler.processRpcRequest(TransportRequestHandler.java:163)
```
After the fix, the executors were able to fetch the local push-merged blocks.
Closes#33378 from otterc/SPARK-32922-followup.
Authored-by: Chandni Singh <singh.chandni@gmail.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit 6d2cbadcfe)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
This is the initial work of add checksum support of shuffle. This is a piece of https://github.com/apache/spark/pull/32385. And this PR only adds checksum functionality at the shuffle writer side.
Basically, the idea is to wrap a `MutableCheckedOutputStream`* upon the `FileOutputStream` while the shuffle writer generating the shuffle data. But the specific wrapping places are a bit different among the shuffle writers due to their different implementation:
* `BypassMergeSortShuffleWriter` - wrap on each partition file
* `UnsafeShuffleWriter` - wrap on each spill files directly since they doesn't require aggregation, sorting
* `SortShuffleWriter` - wrap on the `ShufflePartitionPairsWriter` after merged spill files since they might require aggregation, sorting
\* `MutableCheckedOutputStream` is a variant of `java.util.zip.CheckedOutputStream` which can change the checksum calculator at runtime.
And we use the `Adler32`, which uses the CRC-32 algorithm but much faster, to calculate the checksum as the same as `Broadcast`'s checksum.
### Why are the changes needed?
### Does this PR introduce _any_ user-facing change?
Yes, added a new conf: `spark.shuffle.checksum`.
### How was this patch tested?
Added unit tests.
Closes#32401 from Ngone51/add-checksum-files.
Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit 4783fb72af)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
Adds error classes to some of the exceptions in QueryCompilationErrors.
### Why are the changes needed?
Improves auditing for developers and adds useful fields for users (error class and SQLSTATE).
### Does this PR introduce _any_ user-facing change?
Yes, fills in missing error class and SQLSTATE fields.
### How was this patch tested?
Existing tests and new unit tests.
Closes#33309 from karenfeng/group-compilation-errors-1.
Authored-by: Karen Feng <karen.feng@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit e92b8ea6f8)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
### What changes were proposed in this pull request?
Currently when the push-based shuffle tests are run in an ad-hoc manner through IDE, `spark.testing` is not set to true therefore `Utils#isPushBasedShuffleEnabled` returns false disabling push-based shuffle eventually causing the tests to fail. This doesn't happen when it is run on command line using maven as `spark.testing` is set to true.
Changes made - set `spark.testing` to true in `initPushBasedShuffleConfs`
### Why are the changes needed?
Fix to run DAGSchedulerSuite tests in ad-hoc manner
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
In my local IDE
Closes#33303 from venkata91/SPARK-32920-follow-up.
Authored-by: Venkata krishnan Sowrirajan <vsowrirajan@linkedin.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
(cherry picked from commit fbf53dee37)
Signed-off-by: Mridul Muralidharan <mridulatgmail.com>
### What changes were proposed in this pull request?
This PR adds an INVALID_FIELD_NAME error class for the errors in `StructType.findNestedField`. It also cleans up the code there and adds UT for this method.
### Why are the changes needed?
follow the new error message framework
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
existing tests
Closes#33282 from cloud-fan/error.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
### What changes were proposed in this pull request?
Try to capture the error message from the `faulthandler` when the Python worker crashes.
### Why are the changes needed?
Currently, we just see an error message saying `"exited unexpectedly (crashed)"` when the UDFs causes the Python worker to crash by like segmentation fault.
We should take advantage of [`faulthandler`](https://docs.python.org/3/library/faulthandler.html) and try to capture the error message from the `faulthandler`.
### Does this PR introduce _any_ user-facing change?
Yes, when a Spark config `spark.python.worker.faulthandler.enabled` is `true`, the stack trace will be seen in the error message when the Python worker crashes.
```py
>>> def f():
... import ctypes
... ctypes.string_at(0)
...
>>> sc.parallelize([1]).map(lambda x: f()).count()
```
```
org.apache.spark.SparkException: Python worker exited unexpectedly (crashed): Fatal Python error: Segmentation fault
Current thread 0x000000010965b5c0 (most recent call first):
File "/.../ctypes/__init__.py", line 525 in string_at
File "<stdin>", line 3 in f
File "<stdin>", line 1 in <lambda>
...
```
### How was this patch tested?
Added some tests, and manually.
Closes#33273 from ueshin/issues/SPARK-36062/faulthandler.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit 115b8a180f)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
### What changes were proposed in this pull request?
Refactors the base Throwable trait `SparkError.scala` (introduced in SPARK-34920) an interface `SparkThrowable.java`.
### Why are the changes needed?
- Renaming `SparkError` to `SparkThrowable` better reflect sthat this is the base interface for both `Exception` and `Error`
- Migrating to Java maximizes its extensibility
### Does this PR introduce _any_ user-facing change?
Yes; the base trait has been renamed and the accessor methods have changed (eg. `sqlState` -> `getSqlState()`).
### How was this patch tested?
Unit tests.
Closes#33164 from karenfeng/SPARK-35958.
Authored-by: Karen Feng <karen.feng@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
(cherry picked from commit 71c086eb87)
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
### What changes were proposed in this pull request?
Update the executor's page, so it can successfully hide the "Exec Loss Reason" column.
### Why are the changes needed?
When unselected the checkbox "Exec Loss Reason" on the executor page,
the "Active tasks" column disappears instead of the "Exec Loss Reason" column.
Before:
After:
### Does this PR introduce _any_ user-facing change?
Yes, The Web UI is updated.
### How was this patch tested?
Pass the CIs.
Closes#33155 from pingsutw/SPARK-35950.
Lead-authored-by: Kevin Su <pingsutw@gmail.com>
Co-authored-by: Kevin Su <pingsutw@apache.org>
Signed-off-by: Gengliang Wang <gengliang@apache.org>
### What changes were proposed in this pull request?
This PR proposes to let `WorkerWatcher` reuse the `stopping` flag in `CoarseGrainedExecutorBackend` to avoid the duplicate call of `System.exit`.
### Why are the changes needed?
As a followup of https://github.com/apache/spark/pull/32868, this PR tries to give a more robust fix.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Pass existing tests.
Closes#33028 from Ngone51/spark-35714-followup.
Lead-authored-by: yi.wu <yi.wu@databricks.com>
Co-authored-by: wuyi <yi.wu@databricks.com>
Signed-off-by: yi.wu <yi.wu@databricks.com>
### What changes were proposed in this pull request?
Unifies exceptions thrown from Spark under a single base trait `SparkError`, which unifies:
- Error classes
- Parametrized error messages
- SQLSTATE, as discussed in http://apache-spark-developers-list.1001551.n3.nabble.com/DISCUSS-Add-error-IDs-td31126.html.
### Why are the changes needed?
- Adding error classes creates a consistent label for exceptions, even as error messages change
- Creating a single, centralized source-of-truth for parametrized error messages improves auditing for error message quality
- Adding SQLSTATE helps ODBC/JDBC users receive standardized error codes
### Does this PR introduce _any_ user-facing change?
Yes, changes ODBC experience by:
- Adding error classes to error messages
- Adding SQLSTATE to TStatus
### How was this patch tested?
Unit tests, as well as local tests with PyODBC.
Closes#32850 from karenfeng/SPARK-34920.
Authored-by: Karen Feng <karen.feng@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
### What changes were proposed in this pull request?
This is the followup from https://github.com/apache/spark/pull/33012#discussion_r659440833, where we want to add `Unstable` to `FileCommitProtocol`, to give people a better idea of API.
### Why are the changes needed?
Make it easier for people to follow and understand code. Clean up code.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Existing unit tests, as no real logic change.
Closes#33148 from c21/bucket-followup.
Authored-by: Cheng Su <chengsu@fb.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
### What changes were proposed in this pull request?
This is the shuffle fetch side change where executors can fetch local/remote push-merged shuffle data from shuffle services. This is needed for push-based shuffle - SPIP [SPARK-30602](https://issues.apache.org/jira/browse/SPARK-30602).
The change adds support to the `ShuffleBlockFetchIterator` to fetch push-merged block meta and shuffle chunks from local and remote ESS. If the fetch of any of these fails, then the iterator fallsback to fetch the original shuffle blocks that belonged to the push-merged block.
### Why are the changes needed?
These changes are needed for push-based shuffle. Refer to the SPIP in [SPARK-30602](https://issues.apache.org/jira/browse/SPARK-30602).
### Does this PR introduce _any_ user-facing change?
When push-based shuffle is turned on then that will fetch push-merged blocks from the remote shuffle service. The client logs will indicate this.
### How was this patch tested?
Added unit tests.
The reference PR with the consolidated changes covering the complete implementation is also provided in [SPARK-30602](https://issues.apache.org/jira/browse/SPARK-30602).
We have already verified the functionality and the improved performance as documented in the SPIP doc.
Lead-authored-by: Chandni Singh chsinghlinkedin.com
Co-authored-by: Min Shen mshenlinkedin.com
Co-authored-by: Ye Zhou yezhoulinkedin.com
Closes#32140 from otterc/SPARK-32922.
Lead-authored-by: Chandni Singh <singh.chandni@gmail.com>
Co-authored-by: Chandni Singh <chsingh@linkedin.com>
Co-authored-by: Min Shen <mshen@linkedin.com>
Co-authored-by: otterc <singh.chandni@gmail.com>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
### What changes were proposed in this pull request?
This PR aims to upgrade ASM to 9.1
### Why are the changes needed?
The latest `xbean-asm9-shaded` is built with ASM 9.1.
- https://mvnrepository.com/artifact/org.apache.xbean/xbean-asm9-shaded/4.20
- 5e0e3c0c64/pom.xml (L67)
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Pass the CIs.
Closes#33130 from dongjoon-hyun/SPARK-35928.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
### What changes were proposed in this pull request?
Currently, we calculate the `remoteBlockBytes` based on the original block info list. It's not efficient. Usually, it costs more ~25% time to be spent here.
If the original reducer size is big but the actual reducer size is small due to automatically partition coalescing of AQE, the reducer will take more time to calculate `remoteBlockBytes`.
We can reduce this cost via remote requests which contain merged block info lists.
### Why are the changes needed?
improve task performance
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
new unit tests and verified manually.
Closes#33109 from yaooqinn/SPARK-35910.
Authored-by: Kent Yao <yao@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
### What changes were proposed in this pull request?
This adds two new additional metrics to `ExternalBlockHandler`:
- `blockTransferRate` -- for indicating the rate of transferring blocks, vs. the data within them
- `blockTransferAvgSize_1min` -- a 1-minute trailing average of block sizes transferred by the ESS
Additionally, this enhances `YarnShuffleServiceMetrics` to expose the histogram/`Snapshot` information from `Timer` metrics within `ExternalBlockHandler`.
### Why are the changes needed?
Currently `ExternalBlockHandler` exposes some useful metrics, but is lacking around metrics for the rate of block transfers. We have `blockTransferRateBytes` to tell us the rate of _bytes_, but no metric to tell us the rate of _blocks_, which is especially relevant when running the ESS on HDDs that are sensitive to random reads. Many small block transfers can have a negative impact on performance, but won't show up as a spike in `blockTransferRateBytes` since the sizes are small. Thus the new metrics to show information around average block size and block transfer rate are very useful to monitor the health/performance of the ESS, especially when running on HDDs.
For the `YarnShuffleServiceMetrics`, currently the three `Timer` metrics exposed by `ExternalBlockHandler` are being underutilized in a YARN-based environment -- they are basically treated as a `Meter`, only exposing rate-based information, when the metrics themselves are collected detailed histograms of timing information. We should expose this information for better observability.
### Does this PR introduce _any_ user-facing change?
Yes, there are two entirely new metrics for the ESS, as documented in `monitoring.md`. Additionally in a YARN environment, `Timer` metrics exposed by the ESS will include more rich timing information.
### How was this patch tested?
New unit tests are added to verify that new metrics are showing up as expected.
We have been running this patch internally for approx. 1 year and have found it to be useful for monitoring the health of ESS and diagnosing performance issues.
Closes#32388 from xkrogen/xkrogen-SPARK-35258-ess-new-metrics.
Authored-by: Erik Krogen <xkrogen@apache.org>
Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
