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https://issues.apache.org/jira/browse/HDFS-14160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16724530#comment-16724530
]
Konstantin Shvachko commented on HDFS-14160:
--------------------------------------------
Posting the Fsck exception from HDFS-14116 here again
{code}
Exception in thread "main" java.lang.ClassCastException:
org.apache.hadoop.hdfs.server.namenode.ha.ObserverReadProxyProvider$ObserverReadInvocationHandler
cannot be cast to org.apache.hadoop.ipc.RpcInvocationHandler
at org.apache.hadoop.ipc.RPC.getConnectionIdForProxy(RPC.java:666)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.getConnectionId(RetryInvocationHandler.java:449)
at org.apache.hadoop.ipc.RPC.getConnectionIdForProxy(RPC.java:667)
at org.apache.hadoop.ipc.RPC.getServerAddress(RPC.java:650)
at org.apache.hadoop.hdfs.HAUtil.getAddressOfActive(HAUtil.java:268)
at
org.apache.hadoop.hdfs.tools.DFSck.getCurrentNamenodeAddress(DFSck.java:266)
at org.apache.hadoop.hdfs.tools.DFSck.doWork(DFSck.java:332)
at org.apache.hadoop.hdfs.tools.DFSck.access$000(DFSck.java:72)
at org.apache.hadoop.hdfs.tools.DFSck$1.run(DFSck.java:159)
at org.apache.hadoop.hdfs.tools.DFSck$1.run(DFSck.java:156)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
at org.apache.hadoop.hdfs.tools.DFSck.run(DFSck.java:155)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90)
at org.apache.hadoop.hdfs.tools.DFSck.main(DFSck.java:402)
[{code}
> ObserverReadInvocationHandler should implement RpcInvocationHandler
> -------------------------------------------------------------------
>
> Key: HDFS-14160
> URL: https://issues.apache.org/jira/browse/HDFS-14160
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Konstantin Shvachko
> Assignee: Konstantin Shvachko
> Priority: Major
>
> Currently ObserverReadInvocationHandler implements InvocationHandler.
> [As
> mentioned|https://issues.apache.org/jira/browse/HDFS-14116?focusedCommentId=16710596&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16710596]
> in HDFS-14116 this is the cause of Fsck failing with Observer.
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