[
https://issues.apache.org/jira/browse/HADOOP-3895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12619918#action_12619918
]
Raghu Angadi commented on HADOOP-3895:
--------------------------------------
This mostly not because of mismatch since this is running inside the NameNode
it wants to contact. Output of '-QUIT' seems to show that RPC server in
NameNode is stuck in side Seletctor, which is unusual. We could take thread
stacks multiple times with 'jstack'. Do unit tests under core/io and core/net
pass?
{noformat}
"IPC Server listener on 9000" daemon prio=10 tid=0x1006d570 nid=0x8d5 runnable
[0x8e3c2000..0x8e3c2ae0]
java.lang.Thread.State: RUNNABLE
at java.util.HashMap.keySet(HashMap.java:886)
at java.util.HashSet.iterator(HashSet.java:170)
at sun.nio.ch.SelectorImpl.processDeregisterQueue(SelectorImpl.java:145)
- locked <0x56d679d8> (a java.util.HashSet)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:87)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
- locked <0x56d61c20> (a sun.nio.ch.Util$1)
- locked <0x56d61c30> (a java.util.Collections$UnmodifiableSet)
- locked <0x56d61be0> (a sun.nio.ch.EPollSelectorImpl)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
at org.apache.hadoop.ipc.Server$Listener.run(Server.java:253)
{noformat}
> namenode fails to run on ppc
> ----------------------------
>
> Key: HADOOP-3895
> URL: https://issues.apache.org/jira/browse/HADOOP-3895
> Project: Hadoop Core
> Issue Type: Bug
> Affects Versions: 0.17.1
> Environment: PowerPC using Fedora 9 (all updates) and gcj-1.5.0.0
> Reporter: Fabian Deutsch
> Priority: Minor
> Attachments: hadoop-env.sh, hadoop-site.xml, java.hprof.txt,
> jdb-namenode-QUIT.log
>
>
> Hadoop starts, but eats 100% CPU. Data- and Secondarynamenodes can not
> connect. No jobs were run, just trying to start the daemon. using
> bin/start-dfs.sh.
> Using the same simple configuration on an x86-arch - also using Fedora 9 and
> gcj-1.5.0.0 - works perfectly.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
