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Posted to hdfs-issues@hadoop.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2018/04/24 20:49:07 UTC
[jira] [Commented] (HDFS-11850) Ozone: Stack Overflow in
XceiverClientManager because of race condition in accessing openClient
[ https://issues.apache.org/jira/browse/HDFS-11850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16450668#comment-16450668 ]
Hudson commented on HDFS-11850:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14057 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/14057/])
HDFS-11850. Ozone: Stack Overflow in XceiverClientManager because of (cliang: rev b72ac9273e9a613d300c4d4ffaf0f466aeab10e1)
* (edit) hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/scm/XceiverClientManager.java
> Ozone: Stack Overflow in XceiverClientManager because of race condition in accessing openClient
> -----------------------------------------------------------------------------------------------
>
> Key: HDFS-11850
> URL: https://issues.apache.org/jira/browse/HDFS-11850
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Mukul Kumar Singh
> Assignee: Mukul Kumar Singh
> Priority: Major
> Attachments: HDFS-11850-HDFS-7240.001.patch
>
>
> There is a possible race condition in accessing the open client has, it is because of unlocked access of the hash in acquireClient.
> This can cause stack overflow and also leaking client in all probabilities
> {code}
> at com.google.common.cache.LocalCache$Segment.put(LocalCache.java:3019)
> at com.google.common.cache.LocalCache.put(LocalCache.java:4365)
> at com.google.common.cache.LocalCache$LocalManualCache.put(LocalCache.java:5077)
> at org.apache.hadoop.scm.XceiverClientManager$1.onRemoval(XceiverClientManager.java:85)
> at com.google.common.cache.LocalCache.processPendingNotifications(LocalCache.java:1966)
> at com.google.common.cache.LocalCache$Segment.runUnlockedCleanup(LocalCache.java:3650)
> at com.google.common.cache.LocalCache$Segment.postWriteCleanup(LocalCache.java:3626)
> at com.google.common.cache.LocalCache$Segment.put(LocalCache.java:3019)
> at com.google.common.cache.LocalCache.put(LocalCache.java:4365)
> at com.google.common.cache.LocalCache$LocalManualCache.put(LocalCache.java:5077)
> at org.apache.hadoop.scm.XceiverClientManager$1.onRemoval(XceiverClientManager.java:85)
> at com.google.common.cache.LocalCache.processPendingNotifications(LocalCache.java:1966)
> at com.google.common.cache.LocalCache$Segment.runUnlockedCleanup(LocalCache.java:3650)
> at com.google.common.cache.LocalCache$Segment.postWriteCleanup(LocalCache.java:3626)
> at com.google.common.cache.LocalCache$Segment.put(LocalCache.java:3019)
> at com.google.common.cache.LocalCache.put(LocalCache.java:4365)
> at com.google.common.cache.LocalCache$LocalManualCache.put(LocalCache.java:5077)
> at org.apache.hadoop.scm.XceiverClientManager$1.onRemoval(XceiverClientManager.java:85)
> at com.google.common.cache.LocalCache.processPendingNotifications(LocalCache.java:1966)
> at com.google.common.cache.LocalCache$Segment.runUnlockedCleanup(LocalCache.java:3650)
> {code}
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