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https://issues.apache.org/jira/browse/YARN-6062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15809058#comment-15809058
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gehaijiang commented on YARN-6062:
----------------------------------
mat information:
类名称 (类ID) 对象个数 本身所占内存 本身加引用所占内存
java.util.concurrent.ConcurrentHashMap (37247) 530 41K 25M
java.util.concurrent.ConcurrentHashMap$Segment[] (41421) 530 78K
25M
java.util.concurrent.ConcurrentHashMap$Segment (34044) 5,938 278K
25M
java.util.concurrent.ConcurrentHashMap$HashEntry[] (37906) 5,938 1,239K
25M
java.util.concurrent.ConcurrentHashMap$HashEntry (34043) 41,944 1,966K
25M
byte[] (35091) 2,566 16,633K 16M
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService
(41148) 1 0K 11M
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalResourcesTrackerImpl
(37582) 138 13K 11M
org.apache.hadoop.mapred.ShuffleHandler$HttpPipelineFactory (45434) 1
0K 10M
org.apache.hadoop.mapred.ShuffleHandler$Shuffle (45435) 1 0K
10M
org.apache.hadoop.mapred.IndexCache (89561) 1 0K 10M
> nodemanager memory leak
> -----------------------
>
> Key: YARN-6062
> URL: https://issues.apache.org/jira/browse/YARN-6062
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 2.7.1
> Reporter: gehaijiang
> Attachments: jmap.84971.txt, jstack.84971.txt, smaps.84971.txt
>
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 8986 data 20 0 21.3g 19g 7376 S 5.5 20.7 2458:09 java
> 38432 data 20 0 9.8g 7.9g 6300 S 95.5 8.4 35273:23 java
> 6653 data 20 0 4558m 3.4g 10m S 9.2 3.6 6640:37 java
> $ jps
> 6653 NodeManager
> Nodemanager memory has been up，Reach 10G。
> nodemanager yarn-env.sh configure (2G)
> YARN_NODEMANAGER_OPTS=" -Xms2048m -Xmn768m
> -Xloggc:${YARN_LOG_DIR}/nodemanager.gc.log -XX:+PrintGCDateStamps
> -XX:+PrintGCDetails -XX:+PrintGCTimeStamps"
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