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https://issues.apache.org/jira/browse/CASSANDRA-4571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445985#comment-13445985
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Tobias Grahn commented on CASSANDRA-4571:
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Yes. I have tried to run traffic for a couple of days which does mixed
operations and cassandra is still running.
However, i just started to run a traffic testcase which does only reads and the
issue is back directly.
I don't know if it matters but all my reads returns empty responses which is
expected since these keys should be deleted :)
The testcase does a lookup on the key only.
E.g I have file with a number of keys and then my testcase try to lookup a row
using that key and the response is empty since these keys does not exists.
> 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, 1.1.2, 1.1.3
> 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
> Priority: Critical
>
> 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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