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https://issues.apache.org/jira/browse/HDFS-7261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brahma Reddy Battula updated HDFS-7261:
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Attachment: HDFS-7261-002.patch
> 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
> 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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