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From Bryan Cheng <br...@blockcypher.com>
Subject Re: Does Too many GC pauses can cause cassandra service DOWN.
Date Wed, 15 Feb 2017 00:11:18 GMT
GC can absolutely cause a server to get marked down by a peer. See
https://support.datastax.com/hc/en-us/articles/204226199-Common-Causes-of-GC-pauses

As for tuning again we use CMS but this thread has some good G1 info that I
looked at while evaluating it:
https://issues.apache.org/jira/browse/CASSANDRA-7486

Also Al's awesome tuning guide has some stuff, although its 2.1-centric so
might not be 100% applicable
https://tobert.github.io/pages/als-cassandra-21-tuning-guide.html

On Tue, Feb 14, 2017 at 1:57 PM, Pranay akula <pranay.akula2323@gmail.com>
wrote:

> On couple of servers  when cassandra service is down all i see only GC
> pauses and load on these servers is not high when pauses happend, i haven't
> found any thing else is that can be the reason or do i need to look at
> something else ??
>
> We are using G1GC any reference on how to adjust G1GC settings, as we can
> not set New Heap in G1.
>
>
> Thanks
>  Pranay.
>

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