Andrew Or 25921110fc [SPARK-2609] Log thread ID when spilling ExternalAppendOnlyMap ... It's useful to know whether one thread is constantly spilling or multiple threads are spilling relatively infrequently. Right now everything looks a little jumbled and we can't tell which lines belong to the same thread. For instance: ``` 06:14:37 ExternalAppendOnlyMap: Spilling in-memory map of 4 MB to disk (194 times so far) 06:14:37 ExternalAppendOnlyMap: Spilling in-memory map of 4 MB to disk (198 times so far) 06:14:37 ExternalAppendOnlyMap: Spilling in-memory map of 4 MB to disk (198 times so far) 06:14:37 ExternalAppendOnlyMap: Spilling in-memory map of 10 MB to disk (197 times so far) 06:14:38 ExternalAppendOnlyMap: Spilling in-memory map of 9 MB to disk (45 times so far) 06:14:38 ExternalAppendOnlyMap: Spilling in-memory map of 23 MB to disk (198 times so far) 06:14:38 ExternalAppendOnlyMap: Spilling in-memory map of 38 MB to disk (25 times so far) 06:14:38 ExternalAppendOnlyMap: Spilling in-memory map of 161 MB to disk (25 times so far) 06:14:39 ExternalAppendOnlyMap: Spilling in-memory map of 0 MB to disk (199 times so far) 06:14:39 ExternalAppendOnlyMap: Spilling in-memory map of 4 MB to disk (166 times so far) 06:14:39 ExternalAppendOnlyMap: Spilling in-memory map of 4 MB to disk (199 times so far) 06:14:39 ExternalAppendOnlyMap: Spilling in-memory map of 4 MB to disk (200 times so far) ``` Author: Andrew Or <andrewor14@gmail.com> Closes #1517 from andrewor14/external-log and squashes the following commits: 90e48bb [Andrew Or] Log thread ID when spilling		2014-07-23 10:31:45 -07:00
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src	[SPARK-2609] Log thread ID when spilling ExternalAppendOnlyMap	2014-07-23 10:31:45 -07:00
pom.xml	[SPARK-2399] Add support for LZ4 compression.	2014-07-15 01:46:57 -07:00