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https://issues.apache.org/jira/browse/CASSANDRA-13663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas updated CASSANDRA-13663:
-----------------------------------------
    Component/s: Local Write-Read Paths

> Cassandra 3.10 crashes without dump
> -----------------------------------
>
>                 Key: CASSANDRA-13663
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13663
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Local Write-Read Paths
>            Reporter: Matthias Otto
>            Priority: Minor
>         Attachments: 2017-07-04 10_48_34-CloudWatch Management Console.png, 
> RamUsageExamle1.png, RamUsageExample2.png, cassandra debug.log, cassandra 
> system.log
>
>
> Hello. My company runs a 5 node Cassandra cluster. For the last few weeks, we 
> have had a sporadic issue where one of the servers crashes without creating a 
> dump file and without any error messages in the logs. If one restarts the 
> service (which we have by now scripted to happen automatically), the servers 
> resumes work with no complaint.
> Log files of the time of the last crash are attached, thou again they do not 
> log any crash happening.
> Regarding out setup, we are running these servers on AMazon AWS, with 3 
> volumes per server, one for the system, one for data and one for the 
> commitlog. When a crash happens, we can observe a sudden spike of read 
> activity on the commitlog volume. All of these have ample free space. 
> Aspecially the system volume has more then enough free space so that a dump 
> could be written.
> The servers are Ubuntu 16.04 servers and Cassandra is installed from the 
> apt-get packet for version 3.10.
> It is worth noting that these crashes happen more often when nodetool is 
> running either repair job or a backup job, but this is by no means always the 
> case. As for frequency, we have had about 1-2 crashes per week for the last 
> month.



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