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From "Jeremy Hanna (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8969) Add indication in cassandra.yaml that rpc timeouts going too high will cause memory build up
Date Wed, 23 Mar 2016 16:48:25 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15208747#comment-15208747
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Jeremy Hanna commented on CASSANDRA-8969:
-----------------------------------------

Not to bikeshed too much but what do you think of making it a little more explicit?

{quote}
+# For this reason, you should avoid putting these settings too high. Of course
+# putting them too low is equally ill-advised since clients could get timeouts even
+# for successful operations just because the timeout setting is too tight.
+# In other words, if you are timing out requests because of underlying resource constraints
+# then increasing the timeout will just cause more problems.
{quote}

> Add indication in cassandra.yaml that rpc timeouts going too high will cause memory build
up
> --------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-8969
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8969
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Configuration
>            Reporter: Jeremy Hanna
>            Assignee: Jeremy Hanna
>            Priority: Minor
>              Labels: lhf
>             Fix For: 3.x
>
>         Attachments: 8969.txt
>
>
> It would be helpful to communicate that setting the rpc timeouts too high may cause memory
problems on the server as it can become overloaded and has to retain the in flight requests
in memory.  I'll get this done but just adding the ticket as a placeholder for memory.



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