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https://issues.apache.org/jira/browse/HADOOP-7017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12970071#action_12970071
]
tom liu commented on HADOOP-7017:
---------------------------------
after this patch, i has been run about one month successfully.
> ipc.Client.Connection.receiveResponse throws ClassNotFoundException when
> large requests are sent to RPC.Server
> --------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-7017
> URL: https://issues.apache.org/jira/browse/HADOOP-7017
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.20.2
> Environment: JDK1.6/WindowsXP/CygWin/Tomcat6
> Reporter: tom liu
> Attachments: diff.patch
>
>
> i use solr with katta integration, pls see
> https://issues.apache.org/jira/browse/SOLR-1395
> when i use:
> {noformat}
> ab -n 100 -c 10 http://localhost:8080/solr/select?q=solr&;...
> {noformat}
> i found solr throws NPE, so, i added some code like below:
> {code:title=ipc.Client.Connection|borderStyle=solid}
> public void receiveResponse() {
> ...
> try {
> ...
> ...
> } catch (IOException e) {
> markClosed(e);
> } catch (RunTimeException t) {
> LOG.error("Unexpected error reading responses on connection ", t);
> throw t;
> }
> }
> {code}
> then, i catch the ClassNotFoundException:
> {noformat}
> java.lang.RuntimeException: readObject can't find class
> om-SL510?(responseê`?$name...
> at
> org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:185)
> at
> org.apache.hadoop.io.ObjectWritable.readFields(ObjectWritable.java:66)
> at
> org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:511)
> Caused by: java.lang.ClassNotFoundException: om-SL510?(responseê`?$name...
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:247)
> at
> org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:762)
> at
> org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:183)
> {noformat}
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