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Date: Thu, 1 Jan 2015 13:15:13 +0000 (UTC)
From: "William Saar (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.12749348.1413838403000.123778.1420118113573@Atlassian.JIRA>
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Subject: [jira] [Comment Edited] (CASSANDRA-8152) Cassandra crashes with
 Native memory allocation failure
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    [ https://issues.apache.org/jira/browse/CASSANDRA-8152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14262548#comment-14262548 ] 

William Saar edited comment on CASSANDRA-8152 at 1/1/15 1:14 PM:
-----------------------------------------------------------------

I have this issue as well in a 6-node cluster running Cassandra 2.1.2. I only have 3 '(deleted)' files in my dump. However, I notice that the Dynamic Libraries section has 131072 lines with mapped files specified in both my dumps and the ones posted here. 

Others also may have a very similar issue with Cassandra 2.1 in installations with lots of files:
http://grokbase.com/t/cassandra/user/14ckk4xyhe/cassandra-2-1-0-crashes-the-jvm-with-oom-with-heaps-of-memory-free


was (Author: william):
I have this issue as well in a 6-node cluster running Cassandra 2.1.2. I only have a small number of '(deleted)' files in my dump. However, I notice that the Dynamic Libraries section has 131072 lines with mapped files specified in both my dumps and the ones posted here. 

Others also may have a very similar issue with Cassandra 2.1 in installations with lots of files:
http://grokbase.com/t/cassandra/user/14ckk4xyhe/cassandra-2-1-0-crashes-the-jvm-with-oom-with-heaps-of-memory-free

> Cassandra crashes with Native memory allocation failure
> -------------------------------------------------------
>
>                 Key: CASSANDRA-8152
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8152
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: EC2 (i2.xlarge)
>            Reporter: Babar Tareen
>            Assignee: Brandon Williams
>            Priority: Minor
>         Attachments: db06_hs_err_pid26159.log.zip, db_05_hs_err_pid25411.log.zip
>
>
> On a 6 node Cassandra (datastax-community-2.1) cluster running on EC2 (i2.xlarge) instances, Jvm hosting the cassandra service randomly crashes with following error.
> {code}
> #
> # There is insufficient memory for the Java Runtime Environment to continue.
> # Native memory allocation (malloc) failed to allocate 12288 bytes for committing reserved memory.
> # Possible reasons:
> #   The system is out of physical RAM or swap space
> #   In 32 bit mode, the process size limit was hit
> # Possible solutions:
> #   Reduce memory load on the system
> #   Increase physical memory or swap space
> #   Check if swap backing store is full
> #   Use 64 bit Java on a 64 bit OS
> #   Decrease Java heap size (-Xmx/-Xms)
> #   Decrease number of Java threads
> #   Decrease Java thread stack sizes (-Xss)
> #   Set larger code cache with -XX:ReservedCodeCacheSize=
> # This output file may be truncated or incomplete.
> #
> #  Out of Memory Error (os_linux.cpp:2747), pid=26159, tid=140305605682944
> #
> # JRE version: Java(TM) SE Runtime Environment (7.0_60-b19) (build 1.7.0_60-b19)
> # Java VM: Java HotSpot(TM) 64-Bit Server VM (24.60-b09 mixed mode linux-amd64 compressed oops)
> # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
> #
> ---------------  T H R E A D  ---------------
> Current thread (0x0000000008341000):  JavaThread "MemtableFlushWriter:2055" daemon [_thread_new, id=23336, stack(0x00007f9b71c56000,0x00007f9b71c97000)]
> Stack: [0x00007f9b71c56000,0x00007f9b71c97000],  sp=0x00007f9b71c95820,  free space=254k
> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
> V  [libjvm.so+0x99e7ca]  VMError::report_and_die()+0x2ea
> V  [libjvm.so+0x496fbb]  report_vm_out_of_memory(char const*, int, unsigned long, char const*)+0x9b
> V  [libjvm.so+0x81d81e]  os::Linux::commit_memory_impl(char*, unsigned long, bool)+0xfe
> V  [libjvm.so+0x81d8dc]  os::pd_commit_memory(char*, unsigned long, bool)+0xc
> V  [libjvm.so+0x81565a]  os::commit_memory(char*, unsigned long, bool)+0x2a
> V  [libjvm.so+0x81bdcd]  os::pd_create_stack_guard_pages(char*, unsigned long)+0x6d
> V  [libjvm.so+0x9522de]  JavaThread::create_stack_guard_pages()+0x5e
> V  [libjvm.so+0x958c24]  JavaThread::run()+0x34
> V  [libjvm.so+0x81f7f8]  java_start(Thread*)+0x108
> {code}
> Changes in cassandra-env.sh settings
> {code}
> MAX_HEAP_SIZE="8G"
> HEAP_NEWSIZE="800M"
> JVM_OPTS="$JVM_OPTS -XX:TargetSurvivorRatio=50"
> JVM_OPTS="$JVM_OPTS -XX:+AggressiveOpts"
> JVM_OPTS="$JVM_OPTS -XX:+UseLargePages"
> {code}
> Writes are about 10K-15K/sec and there are very few reads. Cassandra 2.0.9 with same settings never crashed. JVM crash logs are attached from two machines.


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