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https://issues.apache.org/jira/browse/HDFS-7261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14389146#comment-14389146
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Hudson commented on HDFS-7261:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #2099 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2099/])
HDFS-7261. storageMap is accessed without synchronization in
DatanodeDescriptor#updateHeartbeatState() (Brahma Reddy Battula via Colin P.
McCabe) (cmccabe: rev 1feb9569f366a29ecb43592d71ee21023162c18f)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeDescriptor.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
> storageMap is accessed without synchronization in
> DatanodeDescriptor#updateHeartbeatState()
> -------------------------------------------------------------------------------------------
>
> Key: HDFS-7261
> URL: https://issues.apache.org/jira/browse/HDFS-7261
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Brahma Reddy Battula
> Fix For: 2.8.0
>
> Attachments: HDFS-7261-001.patch, HDFS-7261-002.patch, HDFS-7261.patch
>
>
> Here is the code:
> {code}
> failedStorageInfos = new HashSet<DatanodeStorageInfo>(
> storageMap.values());
> {code}
> In other places, the lock on "DatanodeDescriptor.storageMap" is held:
> {code}
> synchronized (storageMap) {
> final Collection<DatanodeStorageInfo> storages = storageMap.values();
> return storages.toArray(new DatanodeStorageInfo[storages.size()]);
> }
> {code}
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