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https://issues.apache.org/jira/browse/CASSANDRA-10403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14957438#comment-14957438
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Paulo Motta edited comment on CASSANDRA-10403 at 10/14/15 6:25 PM:
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For some reason, {{cassandra-env.sh}} is called before loading
{{debian/cassandra.in.sh}} on {{debian/init}}. Since the init script already
defines {{CASSANDRA_HOME}}, I assume it's safe to also define
{{CASSANDRA_CONF}} in a similar way. Another option would be to load
{{cassandra.in.sh}} before sourcing {{cassandra-env.sh}}, but I don't think
this should be necessary because we're dealing with pre-defined package
directories (eg. /usr/share/cassandra and /etc/cassandra), so it should be safe
to define them in a static way. It's always better to confirm though.
was (Author: pauloricardomg):
For some reason, {{cassandra-env.sh}} is called before loading
{{debian/cassandra.in.sh}} on {{debian/init}}. Since the init script already
defines {{CASSANDRA_HOME}}, I assume it's safe to also define
{{CASSANDRA_CONF}} in a similar way. Another option would be to load
{{cassandra.in.sh}} before sourcing {{cassandra-env.sh}}, but I don't think
this should be necessary because we're dealing with pre-defined package
directories (eg. /usr/share/cassandra and /etc/cassandra), so it should be safe
to define them in a static way.
> Consider reverting to CMS GC on 3.0
> -----------------------------------
>
> Key: CASSANDRA-10403
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10403
> Project: Cassandra
> Issue Type: Improvement
> Components: Config
> Reporter: Joshua McKenzie
> Assignee: Paulo Motta
> Fix For: 3.0.0 rc2
>
>
> Reference discussion on CASSANDRA-7486.
> For smaller heap sizes G1 appears to have some throughput/latency issues when
> compared to CMS. With our default max heap size at 8G on 3.0, there's a
> strong argument to be made for having CMS as the default for the 3.0 release.
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