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Posted to hdfs-issues@hadoop.apache.org by "groot (Jira)" <ji...@apache.org> on 2022/07/25 11:57:00 UTC
[jira] [Assigned] (HDFS-16676) DatanodeAdminManager$Monitor reports a node as invalid continuously
[ https://issues.apache.org/jira/browse/HDFS-16676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
groot reassigned HDFS-16676:
----------------------------
Assignee: groot (was: Prabhu Joseph)
> DatanodeAdminManager$Monitor reports a node as invalid continuously
> -------------------------------------------------------------------
>
> Key: HDFS-16676
> URL: https://issues.apache.org/jira/browse/HDFS-16676
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.2.1
> Reporter: Prabhu Joseph
> Assignee: groot
> Priority: Major
>
> DatanodeAdminManager$Monitor reports a node as invalid continuously
> {code}
> 2022-07-21 06:54:38,562 WARN org.apache.hadoop.hdfs.server.blockmanagement.DatanodeAdminManager (DatanodeAdminMonitor-0): DatanodeAdminMonitor caught exception when processing node 1.2.3.4:9866.
> java.lang.IllegalStateException: Node 1.2.3.4:9866 is in an invalid state! Invalid state: In Service 0 blocks are on this dn.
> at com.google.common.base.Preconditions.checkState(Preconditions.java:172)
> at org.apache.hadoop.hdfs.server.blockmanagement.DatanodeAdminManager$Monitor.check(DatanodeAdminManager.java:601)
> at org.apache.hadoop.hdfs.server.blockmanagement.DatanodeAdminManager$Monitor.run(DatanodeAdminManager.java:504)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:750)
> {code}
> A node goes into invalid state when stopDecommission sets the node to IN-Service and misses to remove from pendingNodes queues (HDFS-16675). This will be corrected only when user triggers startDecommission. Till then we need not keep the invalid state node in the queue as anyway startDecommission will add it back.
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