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From "Jason Harvey (JIRA)" <>
Subject [jira] [Updated] (CASSANDRA-6546) disablethrift results in unclosed file descriptors
Date Fri, 03 Jan 2014 13:47:06 GMT


Jason Harvey updated CASSANDRA-6546:

    Summary: disablethrift results in unclosed file descriptors  (was: disablethrift followed
by enablethrift results in unclosed file descriptors)

> disablethrift results in unclosed file descriptors
> --------------------------------------------------
>                 Key: CASSANDRA-6546
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jason Harvey
>            Priority: Minor
> Disabling thrift and then re-enabling thrift results in unclosed thrift sockets being
left around.
> Steps to reproduce:
> 1. Have a handful of clients connect via thrift.
> 2. Disable thrift.
> 3. Enable thrift, have the clients reconnect.
> 4. Observe netstat or lsof, and you'll find a lot of thrift sockets in CLOSE_WAIT state.

>   * Also verifiable in org.apache.cassandra.metrics:type=Client,name=connectedThriftClients
> What's extra fun about this is the leaked sockets still count towards your maximum RPC
count. As a result, toggling thrift enough times will result in an rpc_max_threads number
of CLOSED_WAIT sockets, with no new clients able to connect.

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