SPARK-5841 [CORE] [HOTFIX 2] Memory leak in DiskBlockManager #4690

nishkamravi2 · 2015-02-19T07:51:17Z

Continue to see IllegalStateException in YARN cluster mode. Adding a simple workaround for now.

…extFiles The prefix "file:" is missing in the string inserted as key in HashMap

… HADOOP-10456)

…onsistent with rest of Spark

…nravi

…multiplier (redone to resolve merge conflicts)

…nravi Conflicts: yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ClientBase.scala

…nravi Conflicts: yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ClientArguments.scala yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ClientBase.scala yarn/common/src/main/scala/org/apache/spark/deploy/yarn/YarnAllocator.scala

…n to check if maxResultSize > 0)

…nravi

…kManager.stop

AmplabJenkins · 2015-02-19T07:52:10Z

Can one of the admins verify this patch?

andrewor14 · 2015-02-19T18:41:58Z

Yeah, having a Utils.safeRemoveShutdownHook sounds good

nishkamravi2 · 2015-02-20T07:05:08Z

Utils.safeRemoveShutdownHook sounds ok, albeit a bit pretentious :) since a try-catch block alone doesn't quite justify creation of a utility function (unless we have a dozen or more occurrences). I would be perfectly fine with just adding a try-catch block around the other occurrence. The null-pointer check seems unnecessary (and incurs cost), so will delete it.

Also, it seems like inShutDown function is expensive. And should be used only when necessary. I would vote for deleting all its occurrences except for the one in SparkUncaughtExceptionHandler. Unless someone feels strongly otherwise, I can do that cleanup as part of this fix.

…nravi

…etion of semi-redundant occurrences of expensive operation inShutDown.

…into master_nravi Conflicts: core/src/main/scala/org/apache/spark/storage/DiskBlockManager.scala

srowen · 2015-02-20T09:56:16Z

I am also OK with just using the try-catch in both places it's needed, rather than make a utility function. I wouldn't remove Utils.inShutdown. I assume there was some reason to add it. It's expensive but only used in exception / shutdown paths. At least, I would not do this here.

JoshRosen · 2015-02-20T19:58:36Z

I still stand by my original suggestion of simply wrapping the single problematic removeShutdownHook() call in a try block: #4627 (comment). Best to keep things simple for now and avoid introducing new bugs while trying to fix this one.

andrewor14 · 2015-02-20T20:00:34Z

core/src/main/scala/org/apache/spark/rdd/NewHadoopRDD.scala

why this change? I wonder if we'll start printing noisy stack traces for otherwise harmless exceptions.

I think we can back that out if there's any question to keep this limited. @JoshRosen Yes that's where we ended up again, now that it's clear that there are several ways and several places this can happen. It's easiest just to ignore the exception.

sorry, by "back that out" do you mean revert this change or keep this change?

Ah sorry, I mean revert. Although I kind of like the additional follow-on changes, for this PR we should foremost focus on patching up the exception. If there's any question about any extra changes, like the one you raised, I'd favor just reverting that part.

ok, I agree.

andrewor14 · 2015-02-20T20:01:53Z

@nishkamravi2 the latest changes look fine to me. I just have a minor question. We can do more refactoring outside of this hot fix and after the 1.3 release.

nishkamravi2 · 2015-02-20T23:21:20Z

@srowen @andrewor14 I can potentially issue a different PR for the performance issue and back it out from here (it does seem somewhat unrelated). In general, I would vote for discouraging use of this function. Code patterns like these tend to spread-- one could argue checking this condition on several other exit paths in Spark? Also, do we know that if we delete the check we would see noisy stack traces or are we just being careful speculatively?

andrewor14 · 2015-02-21T08:45:25Z

We've had releases in the past where a simple SparkPi program would exit with a huge harmless exception that confused many users. I would prefer to keep the changes in this hot fix minimal and change the pattern separately.

Also I just realized this never ran tests, so Jenkins this is ok to test.

srowen · 2015-02-21T09:31:16Z

ok to test

SparkQA · 2015-02-21T09:32:38Z

Test build #27808 has started for PR 4690 at commit d453197.

This patch merges cleanly.

srowen · 2015-02-21T09:46:06Z

This change looks like the right targeted fix. Waiting on Jenkins.

SparkQA · 2015-02-21T10:55:28Z

Test build #27808 has finished for PR 4690 at commit d453197.

This patch passes all tests.
This patch merges cleanly.
This patch adds no public classes.

AmplabJenkins · 2015-02-21T10:55:32Z

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/27808/
Test PASSed.

andrewor14 · 2015-02-21T17:59:56Z

Thanks I merged this into master 1.3

Continue to see IllegalStateException in YARN cluster mode. Adding a simple workaround for now. Author: Nishkam Ravi <nravi@cloudera.com> Author: nishkamravi2 <nishkamravi@gmail.com> Author: nravi <nravi@c1704.halxg.cloudera.com> Closes #4690 from nishkamravi2/master_nravi and squashes the following commits: d453197 [nishkamravi2] Update NewHadoopRDD.scala 6f41a1d [nishkamravi2] Update NewHadoopRDD.scala 0ce2c32 [nishkamravi2] Update HadoopRDD.scala f7e33c2 [Nishkam Ravi] Merge branch 'master_nravi' of https://github.com/nishkamravi2/spark into master_nravi ba1eb8b [Nishkam Ravi] Try-catch block around the two occurrences of removeShutDownHook. Deletion of semi-redundant occurrences of expensive operation inShutDown. 71d0e17 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 494d8c0 [nishkamravi2] Update DiskBlockManager.scala 3c5ddba [nishkamravi2] Update DiskBlockManager.scala f0d12de [Nishkam Ravi] Workaround for IllegalStateException caused by recent changes to BlockManager.stop 79ea8b4 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi b446edc [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 5c9a4cb [nishkamravi2] Update TaskSetManagerSuite.scala 535295a [nishkamravi2] Update TaskSetManager.scala 3e1b616 [Nishkam Ravi] Modify test for maxResultSize 9f6583e [Nishkam Ravi] Changes to maxResultSize code (improve error message and add condition to check if maxResultSize > 0) 5f8f9ed [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 636a9ff [nishkamravi2] Update YarnAllocator.scala 8f76c8b [Nishkam Ravi] Doc change for yarn memory overhead 35daa64 [Nishkam Ravi] Slight change in the doc for yarn memory overhead 5ac2ec1 [Nishkam Ravi] Remove out dac1047 [Nishkam Ravi] Additional documentation for yarn memory overhead issue 42c2c3d [Nishkam Ravi] Additional changes for yarn memory overhead issue 362da5e [Nishkam Ravi] Additional changes for yarn memory overhead c726bd9 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi f00fa31 [Nishkam Ravi] Improving logging for AM memoryOverhead 1cf2d1e [nishkamravi2] Update YarnAllocator.scala ebcde10 [Nishkam Ravi] Modify default YARN memory_overhead-- from an additive constant to a multiplier (redone to resolve merge conflicts) 2e69f11 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi efd688a [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark 2b630f9 [nravi] Accept memory input as "30g", "512M" instead of an int value, to be consistent with rest of Spark 3bf8fad [nravi] Merge branch 'master' of https://github.com/apache/spark 5423a03 [nravi] Merge branch 'master' of https://github.com/apache/spark eb663ca [nravi] Merge branch 'master' of https://github.com/apache/spark df2aeb1 [nravi] Improved fix for ConcurrentModificationIssue (Spark-1097, Hadoop-10456) 6b840f0 [nravi] Undo the fix for SPARK-1758 (the problem is fixed) 5108700 [nravi] Fix in Spark for the Concurrent thread modification issue (SPARK-1097, HADOOP-10456) 681b36f [nravi] Fix for SPARK-1758: failing test org.apache.spark.JavaAPISuite.wholeTextFiles (cherry picked from commit d3cbd38) Signed-off-by: Andrew Or <andrew@databricks.com>

Add a try/catch block around removeShutDownHook else IllegalStateException thrown in YARN cluster mode (see #4690) cc andrewor14, srowen Author: Nishkam Ravi <nravi@cloudera.com> Author: nishkamravi2 <nishkamravi@gmail.com> Author: nravi <nravi@c1704.halxg.cloudera.com> Closes #5672 from nishkamravi2/master_nravi and squashes the following commits: 0f1abd0 [nishkamravi2] Update Utils.scala 474e3bf [nishkamravi2] Update DiskBlockManager.scala 97c383e [nishkamravi2] Update Utils.scala 8691e0c [Nishkam Ravi] Add a try/catch block around Utils.removeShutdownHook 2be1e76 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 1c13b79 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi bad4349 [nishkamravi2] Update Main.java 36a6f87 [Nishkam Ravi] Minor changes and bug fixes b7f4ae7 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 4a45d6a [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 458af39 [Nishkam Ravi] Locate the jar using getLocation, obviates the need to pass assembly path as an argument d9658d6 [Nishkam Ravi] Changes for SPARK-6406 ccdc334 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 3faa7a4 [Nishkam Ravi] Launcher library changes (SPARK-6406) 345206a [Nishkam Ravi] spark-class merge Merge branch 'master_nravi' of https://github.com/nishkamravi2/spark into master_nravi ac58975 [Nishkam Ravi] spark-class changes 06bfeb0 [nishkamravi2] Update spark-class 35af990 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 32c3ab3 [nishkamravi2] Update AbstractCommandBuilder.java 4bd4489 [nishkamravi2] Update AbstractCommandBuilder.java 746f35b [Nishkam Ravi] "hadoop" string in the assembly name should not be mandatory (everywhere else in spark we mandate spark-assembly*hadoop*.jar) bfe96e0 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi ee902fa [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi d453197 [nishkamravi2] Update NewHadoopRDD.scala 6f41a1d [nishkamravi2] Update NewHadoopRDD.scala 0ce2c32 [nishkamravi2] Update HadoopRDD.scala f7e33c2 [Nishkam Ravi] Merge branch 'master_nravi' of https://github.com/nishkamravi2/spark into master_nravi ba1eb8b [Nishkam Ravi] Try-catch block around the two occurrences of removeShutDownHook. Deletion of semi-redundant occurrences of expensive operation inShutDown. 71d0e17 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 494d8c0 [nishkamravi2] Update DiskBlockManager.scala 3c5ddba [nishkamravi2] Update DiskBlockManager.scala f0d12de [Nishkam Ravi] Workaround for IllegalStateException caused by recent changes to BlockManager.stop 79ea8b4 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi b446edc [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 5c9a4cb [nishkamravi2] Update TaskSetManagerSuite.scala 535295a [nishkamravi2] Update TaskSetManager.scala 3e1b616 [Nishkam Ravi] Modify test for maxResultSize 9f6583e [Nishkam Ravi] Changes to maxResultSize code (improve error message and add condition to check if maxResultSize > 0) 5f8f9ed [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 636a9ff [nishkamravi2] Update YarnAllocator.scala 8f76c8b [Nishkam Ravi] Doc change for yarn memory overhead 35daa64 [Nishkam Ravi] Slight change in the doc for yarn memory overhead 5ac2ec1 [Nishkam Ravi] Remove out dac1047 [Nishkam Ravi] Additional documentation for yarn memory overhead issue 42c2c3d [Nishkam Ravi] Additional changes for yarn memory overhead issue 362da5e [Nishkam Ravi] Additional changes for yarn memory overhead c726bd9 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi f00fa31 [Nishkam Ravi] Improving logging for AM memoryOverhead 1cf2d1e [nishkamravi2] Update YarnAllocator.scala ebcde10 [Nishkam Ravi] Modify default YARN memory_overhead-- from an additive constant to a multiplier (redone to resolve merge conflicts) 2e69f11 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi efd688a [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark 2b630f9 [nravi] Accept memory input as "30g", "512M" instead of an int value, to be consistent with rest of Spark 3bf8fad [nravi] Merge branch 'master' of https://github.com/apache/spark 5423a03 [nravi] Merge branch 'master' of https://github.com/apache/spark eb663ca [nravi] Merge branch 'master' of https://github.com/apache/spark df2aeb1 [nravi] Improved fix for ConcurrentModificationIssue (Spark-1097, Hadoop-10456) 6b840f0 [nravi] Undo the fix for SPARK-1758 (the problem is fixed) 5108700 [nravi] Fix in Spark for the Concurrent thread modification issue (SPARK-1097, HADOOP-10456) 681b36f [nravi] Fix for SPARK-1758: failing test org.apache.spark.JavaAPISuite.wholeTextFiles

Add a try/catch block around removeShutDownHook else IllegalStateException thrown in YARN cluster mode (see apache#4690) cc andrewor14, srowen Author: Nishkam Ravi <nravi@cloudera.com> Author: nishkamravi2 <nishkamravi@gmail.com> Author: nravi <nravi@c1704.halxg.cloudera.com> Closes apache#5672 from nishkamravi2/master_nravi and squashes the following commits: 0f1abd0 [nishkamravi2] Update Utils.scala 474e3bf [nishkamravi2] Update DiskBlockManager.scala 97c383e [nishkamravi2] Update Utils.scala 8691e0c [Nishkam Ravi] Add a try/catch block around Utils.removeShutdownHook 2be1e76 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 1c13b79 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi bad4349 [nishkamravi2] Update Main.java 36a6f87 [Nishkam Ravi] Minor changes and bug fixes b7f4ae7 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 4a45d6a [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 458af39 [Nishkam Ravi] Locate the jar using getLocation, obviates the need to pass assembly path as an argument d9658d6 [Nishkam Ravi] Changes for SPARK-6406 ccdc334 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 3faa7a4 [Nishkam Ravi] Launcher library changes (SPARK-6406) 345206a [Nishkam Ravi] spark-class merge Merge branch 'master_nravi' of https://github.com/nishkamravi2/spark into master_nravi ac58975 [Nishkam Ravi] spark-class changes 06bfeb0 [nishkamravi2] Update spark-class 35af990 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 32c3ab3 [nishkamravi2] Update AbstractCommandBuilder.java 4bd4489 [nishkamravi2] Update AbstractCommandBuilder.java 746f35b [Nishkam Ravi] "hadoop" string in the assembly name should not be mandatory (everywhere else in spark we mandate spark-assembly*hadoop*.jar) bfe96e0 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi ee902fa [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi d453197 [nishkamravi2] Update NewHadoopRDD.scala 6f41a1d [nishkamravi2] Update NewHadoopRDD.scala 0ce2c32 [nishkamravi2] Update HadoopRDD.scala f7e33c2 [Nishkam Ravi] Merge branch 'master_nravi' of https://github.com/nishkamravi2/spark into master_nravi ba1eb8b [Nishkam Ravi] Try-catch block around the two occurrences of removeShutDownHook. Deletion of semi-redundant occurrences of expensive operation inShutDown. 71d0e17 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 494d8c0 [nishkamravi2] Update DiskBlockManager.scala 3c5ddba [nishkamravi2] Update DiskBlockManager.scala f0d12de [Nishkam Ravi] Workaround for IllegalStateException caused by recent changes to BlockManager.stop 79ea8b4 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi b446edc [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 5c9a4cb [nishkamravi2] Update TaskSetManagerSuite.scala 535295a [nishkamravi2] Update TaskSetManager.scala 3e1b616 [Nishkam Ravi] Modify test for maxResultSize 9f6583e [Nishkam Ravi] Changes to maxResultSize code (improve error message and add condition to check if maxResultSize > 0) 5f8f9ed [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi 636a9ff [nishkamravi2] Update YarnAllocator.scala 8f76c8b [Nishkam Ravi] Doc change for yarn memory overhead 35daa64 [Nishkam Ravi] Slight change in the doc for yarn memory overhead 5ac2ec1 [Nishkam Ravi] Remove out dac1047 [Nishkam Ravi] Additional documentation for yarn memory overhead issue 42c2c3d [Nishkam Ravi] Additional changes for yarn memory overhead issue 362da5e [Nishkam Ravi] Additional changes for yarn memory overhead c726bd9 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi f00fa31 [Nishkam Ravi] Improving logging for AM memoryOverhead 1cf2d1e [nishkamravi2] Update YarnAllocator.scala ebcde10 [Nishkam Ravi] Modify default YARN memory_overhead-- from an additive constant to a multiplier (redone to resolve merge conflicts) 2e69f11 [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark into master_nravi efd688a [Nishkam Ravi] Merge branch 'master' of https://github.com/apache/spark 2b630f9 [nravi] Accept memory input as "30g", "512M" instead of an int value, to be consistent with rest of Spark 3bf8fad [nravi] Merge branch 'master' of https://github.com/apache/spark 5423a03 [nravi] Merge branch 'master' of https://github.com/apache/spark eb663ca [nravi] Merge branch 'master' of https://github.com/apache/spark df2aeb1 [nravi] Improved fix for ConcurrentModificationIssue (Spark-1097, Hadoop-10456) 6b840f0 [nravi] Undo the fix for SPARK-1758 (the problem is fixed) 5108700 [nravi] Fix in Spark for the Concurrent thread modification issue (SPARK-1097, HADOOP-10456) 681b36f [nravi] Fix for SPARK-1758: failing test org.apache.spark.JavaAPISuite.wholeTextFiles

nishkamravi2 and others added 29 commits June 3, 2014 15:28

Fix for SPARK-1758: failing test org.apache.spark.JavaAPISuite.wholeT…

681b36f

…extFiles The prefix "file:" is missing in the string inserted as key in HashMap

Fix in Spark for the Concurrent thread modification issue (SPARK-1097,…

5108700

… HADOOP-10456)

Undo the fix for SPARK-1758 (the problem is fixed)

6b840f0

Improved fix for ConcurrentModificationIssue (Spark-1097, Hadoop-10456)

df2aeb1

Merge branch 'master' of https://github.com/apache/spark

eb663ca

Merge branch 'master' of https://github.com/apache/spark

5423a03

Merge branch 'master' of https://github.com/apache/spark

3bf8fad

Accept memory input as "30g", "512M" instead of an int value, to be c…

2b630f9

…onsistent with rest of Spark

Merge branch 'master' of https://github.com/apache/spark

efd688a

Merge branch 'master' of https://github.com/apache/spark into master_…

2e69f11

…nravi

Modify default YARN memory_overhead-- from an additive constant to a …

ebcde10

…multiplier (redone to resolve merge conflicts)

Update YarnAllocator.scala

1cf2d1e

Improving logging for AM memoryOverhead

f00fa31

Merge branch 'master' of https://github.com/apache/spark into master_…

c726bd9

…nravi Conflicts: yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ClientBase.scala

Additional changes for yarn memory overhead

362da5e

Additional changes for yarn memory overhead issue

42c2c3d

Additional documentation for yarn memory overhead issue

dac1047

Remove out

5ac2ec1

Slight change in the doc for yarn memory overhead

35daa64

Doc change for yarn memory overhead

8f76c8b

Update YarnAllocator.scala

636a9ff

Changes to maxResultSize code (improve error message and add conditio…

9f6583e

…n to check if maxResultSize > 0)

Modify test for maxResultSize

3e1b616

Update TaskSetManager.scala

535295a

Update TaskSetManagerSuite.scala

5c9a4cb

Merge branch 'master' of https://github.com/apache/spark into master_…

b446edc

…nravi

Merge branch 'master' of https://github.com/apache/spark into master_…

79ea8b4

…nravi

Workaround for IllegalStateException caused by recent changes to Bloc…

f0d12de

…kManager.stop

nishkamravi2 added 3 commits February 19, 2015 23:15

Merge branch 'master' of https://github.com/apache/spark into master_…

71d0e17

…nravi

Try-catch block around the two occurrences of removeShutDownHook. Del…

ba1eb8b

…etion of semi-redundant occurrences of expensive operation inShutDown.

Merge branch 'master_nravi' of https://github.com/nishkamravi2/spark …

f7e33c2

…into master_nravi Conflicts: core/src/main/scala/org/apache/spark/storage/DiskBlockManager.scala

andrewor14 reviewed Feb 20, 2015
View reviewed changes

nishkamravi2 added 3 commits February 20, 2015 15:23

Update HadoopRDD.scala

0ce2c32

Update NewHadoopRDD.scala

6f41a1d

Update NewHadoopRDD.scala

d453197

asfgit closed this in d3cbd38 Feb 21, 2015

nishkamravi2 mentioned this pull request Apr 24, 2015

[SPARK-6014] [core][hotfix] Add try-catch block around ShutDownHook #5672

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SPARK-5841 [CORE] [HOTFIX 2] Memory leak in DiskBlockManager #4690

SPARK-5841 [CORE] [HOTFIX 2] Memory leak in DiskBlockManager #4690

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