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https://issues.apache.org/jira/browse/HBASE-10029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832947#comment-13832947
]
Tsz Wo (Nicholas), SZE commented on HBASE-10029:
------------------------------------------------
I cannot follow well on this problem:
> ,,, ConfiguredFailoverProxyProvider should implement Closeable.
ConfiguredFailoverProxyProvider<T> implements FailoverProxyProvider<T> where
FailoverProxyProvider<T> extends Closeable. So doesn't
ConfiguredFailoverProxyProvider actually implement Closeable?
For the "RPC.stopProxy called on non proxy" error, could you apply the
following in order to see what is the proxy class?
{code}
Index:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java
===================================================================
---
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java
(revision 1545796)
+++
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java
(working copy)
@@ -634,7 +634,7 @@
} catch (IOException e) {
LOG.error("Closing proxy or invocation handler caused exception", e);
} catch (IllegalArgumentException e) {
- LOG.error("RPC.stopProxy called on non proxy.", e);
+ LOG.error("RPC.stopProxy called on non proxy: class=" +
proxy.getClass(), e);
}
// If you see this error on a mock object in a unit test you're
{code}
> Proxy created by HFileSystem#createReorderingProxy() should properly close
> when connecting to HA namenode
> ---------------------------------------------------------------------------------------------------------
>
> Key: HBASE-10029
> URL: https://issues.apache.org/jira/browse/HBASE-10029
> Project: HBase
> Issue Type: Bug
> Components: hadoop2
> Affects Versions: 0.96.0
> Reporter: Henry Hung
> Assignee: Ted Yu
> Fix For: 0.98.0, 0.96.1
>
> Attachments: 10029-hbase-hadoop-master-fphd9.out, 10029-v1.txt,
> 10029-v2.txt, 10029-v3.txt, 10029.addendum
>
>
> HA namenode with QJM created from
> org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider
> should implement Closeable.
> [Mail
> Archive|https://drive.google.com/file/d/0B22pkxoqCdvWSGFIaEpfR3lnT2M/edit?usp=sharing]
> {code}
> 13/11/26 09:55:55 ERROR ipc.RPC: RPC.stopProxy called on non proxy.
> java.lang.IllegalArgumentException: object is not an instance of declaring
> class
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:266)
> at $Proxy16.close(Unknown Source)
> at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:621)
> at
> org.apache.hadoop.hdfs.DFSClient.closeConnectionToNamenode(DFSClient.java:738)
> at org.apache.hadoop.hdfs.DFSClient.close(DFSClient.java:794)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.close(DistributedFileSystem.java:847)
> at
> org.apache.hadoop.fs.FileSystem$Cache.closeAll(FileSystem.java:2524)
> at
> org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer.run(FileSystem.java:2541)
> at
> org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:54)
> 13/11/26 09:55:55 WARN util.ShutdownHookManager: ShutdownHook
> 'ClientFinalizer' failed, org.apache.hadoop.HadoopIllegalArgumentException:
> Cannot close proxy - is not Closeable or does not provide closeable
> invocation handler class $Proxy16
> org.apache.hadoop.HadoopIllegalArgumentException: Cannot close proxy - is not
> Closeable or does not provide closeable invocation handler class $Proxy16
> at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:639)
> at
> org.apache.hadoop.hdfs.DFSClient.closeConnectionToNamenode(DFSClient.java:738)
> at org.apache.hadoop.hdfs.DFSClient.close(DFSClient.java:794)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.close(DistributedFileSystem.java:847)
> at
> org.apache.hadoop.fs.FileSystem$Cache.closeAll(FileSystem.java:2524)
> at
> org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer.run(FileSystem.java:2541)
> at
> org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:54)
> {code}
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