[jira] [Updated] (CASSANDRA-9766) Bootstrap outgoing streaming speeds are much slower than during repair

["Tyler Hobbs (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-9766?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tyler Hobbs updated CASSANDRA-9766:
-----------------------------------
    Summary: Bootstrap outgoing streaming speeds are much slower than during repair  (was: Bootstrap outgoing straming speeds are much slower then during the repair)

> Bootstrap outgoing streaming speeds are much slower than during repair
> ----------------------------------------------------------------------
>
>                 Key: CASSANDRA-9766
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9766
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Cassandra 2.1.2. more details in the pdf attached 
>            Reporter: Alexei K
>            Assignee: Yuki Morishita
>            Priority: Minor
>             Fix For: 2.1.x
>
>         Attachments: problem.pdf
>
>
> I have a cluster in Amazon cloud , its described in detail in the attachment. What I've noticed is that we during bootstrap we never go above 12MB/sec transmission speeds and also those speeds flat line almost like we're hitting some sort of a limit ( this remains true for other tests that I've ran) however during the repair we see much higher,variable sending rates. I've provided network charts in the attachment as well . Is there an explanation for this? Is something wrong with my configuration, or is it a possible bug?



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