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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4856) Thrift daemon is crashing the server
Date Thu, 25 Oct 2012 10:45:13 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13484031#comment-13484031
] 

Brandon Williams commented on CASSANDRA-4856:
---------------------------------------------

Try this: set rpc_max_threads to something reasonable like 1000 and see if it repros.  If
not, it's the client code freaking out and creating connections until the OS won't let the
server create more threads for them.

Alternately, you could try it with the hsha server so it's not thread-per-connection.
                
> Thrift daemon is crashing the server
> ------------------------------------
>
>                 Key: CASSANDRA-4856
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4856
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.1.6
>         Environment: MacOS 10.8.2
>            Reporter: Michael Yeh
>
> I'm new to cassandra and was looking at using the kundera thrift client.  I was able
to get the sample code working without any issues.  After upgrading to mountain lion on my
mac, I didn't realize I had lost the /var/lib/cassandra directory.  When I tried to run the
previously working sample code, it would crash cassandra with the following stack trace:
> INFO 12:55:37,147 Listening for thrift clients...
> ERROR 12:55:43,545 Exception in thread Thread[Thread-3,5,main]
> java.lang.OutOfMemoryError: unable to create new native thread
> 	at java.lang.Thread.start0(Native Method)
> 	at java.lang.Thread.start(Thread.java:658)
> 	at java.util.concurrent.ThreadPoolExecutor.addIfUnderMaximumPoolSize(ThreadPoolExecutor.java:727)
> 	at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:657)
> 	at org.apache.cassandra.thrift.CustomTThreadPoolServer.serve(CustomTThreadPoolServer.java:103)
> 	at org.apache.cassandra.thrift.CassandraDaemon$ThriftServer.run(CassandraDaemon.java:213)
> After realizing that I needed to recreate the keyspace and column families, everything
started to work again.  Although I'm no longer blocked with my issue, no clients should ever
be able to crash a server even if it is user error.

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