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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-4571) Strange permament socket descriptors increasing leads to "Too many open files"
Date Tue, 04 Sep 2012 16:18:09 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-4571?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-4571:
--------------------------------------

    Attachment: 4571.txt
    
> Strange permament socket descriptors increasing leads to "Too many open files"
> ------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-4571
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4571
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.1
>         Environment: CentOS 5.8 Linux 2.6.18-308.13.1.el5 #1 SMP Tue Aug 21 17:10:18
EDT 2012 x86_64 x86_64 x86_64 GNU/Linux. 
> java version "1.6.0_33"
> Java(TM) SE Runtime Environment (build 1.6.0_33-b03)
> Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03, mixed mode)
>            Reporter: Serg Shnerson
>            Assignee: Jonathan Ellis
>            Priority: Critical
>             Fix For: 1.1.5
>
>         Attachments: 4571.txt
>
>
> On the two-node cluster there was found strange socket descriptors increasing. lsof -n
| grep java shows many rows like"
> java       8380 cassandra  113r     unix 0xffff8101a374a080            938348482 socket
> java       8380 cassandra  114r     unix 0xffff8101a374a080            938348482 socket
> java       8380 cassandra  115r     unix 0xffff8101a374a080            938348482 socket
> java       8380 cassandra  116r     unix 0xffff8101a374a080            938348482 socket
> java       8380 cassandra  117r     unix 0xffff8101a374a080            938348482 socket
> java       8380 cassandra  118r     unix 0xffff8101a374a080            938348482 socket
> java       8380 cassandra  119r     unix 0xffff8101a374a080            938348482 socket
> java       8380 cassandra  120r     unix 0xffff8101a374a080            938348482 socket
> " And number of this rows constantly increasing. After about 24 hours this situation
leads to error.
> We use PHPCassa client. Load is not so high (aroud ~50kb/s on write). 

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