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Posted to hdfs-issues@hadoop.apache.org by "Vinayakumar B (JIRA)" <ji...@apache.org> on 2016/03/15 10:43:35 UTC
[jira] [Deleted] (HDFS-10132) CLONE - DFSClient hang up when there
are not sufficient DataNodes in EC cluster.
[ https://issues.apache.org/jira/browse/HDFS-10132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vinayakumar B deleted HDFS-10132:
---------------------------------
> CLONE - DFSClient hang up when there are not sufficient DataNodes in EC cluster.
> --------------------------------------------------------------------------------
>
> Key: HDFS-10132
> URL: https://issues.apache.org/jira/browse/HDFS-10132
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: dragon
> Assignee: Kai Sasaki
>
> 6-3 RS schema requires 9 data nodes at least to work properly. However when there are not sufficient DataNodes in EC cluster, writing file fails because of NullPointerException. And also client is hang up.
> {code}
> java.lang.NullPointerException
> at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1463)
> at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:591)
> at org.apache.hadoop.hdfs.StripedDataStreamer.run(StripedDataStreamer.java:49)
> {code}
>
> DFSClient should handle insufficient DN error properly just like replication blocks.
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