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https://issues.apache.org/jira/browse/HDFS-12963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16336825#comment-16336825
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Hudson commented on HDFS-12963:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13542 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13542/])
HDFS-12963. Error log level in ShortCircuitRegistry#removeShm. (yqlin: rev
d95c13774e1bd5b3cc61bf4da8bae4a93ed0040c)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/ShortCircuitRegistry.java
> Error log level in ShortCircuitRegistry#removeShm
> -------------------------------------------------
>
> Key: HDFS-12963
> URL: https://issues.apache.org/jira/browse/HDFS-12963
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: hu xiaodong
> Assignee: hu xiaodong
> Priority: Minor
> Fix For: 3.1.0
>
> Attachments: HDFS-12963.001.patch
>
>
> {code:title=org.apache.hadoop.hdfs.server.datanode.ShortCircuitRegistry.java|borderStyle=solid}
> public synchronized void removeShm(ShortCircuitShm shm) {
> if (LOG.isTraceEnabled()) {
> LOG.debug("removing shm " + shm); ------------------ I think here
> should be trace
> }
> // Stop tracking the shmId.
> RegisteredShm removedShm = segments.remove(shm.getShmId());
> Preconditions.checkState(removedShm == shm,
> "failed to remove " + shm.getShmId());
> // Stop tracking the slots.
> for (Iterator<Slot> iter = shm.slotIterator(); iter.hasNext(); ) {
> Slot slot = iter.next();
> boolean removed = slots.remove(slot.getBlockId(), slot);
> Preconditions.checkState(removed);
> slot.makeInvalid();
> }
> // De-allocate the memory map and close the shared file.
> shm.free();
> }
> {code}
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