[jira] [Commented] (CASSANDRA-13107) Remove -XX:ThreadPriorityPolicy=42 jvm flag
[
https://issues.apache.org/jira/browse/CASSANDRA-13107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16455805#comment-16455805
]
Jatin Puri commented on CASSANDRA-13107:
Hello. Has there been any later updates on this ticket?
> Remove -XX:ThreadPriorityPolicy=42 jvm flag
> ---
>
> Key: CASSANDRA-13107
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13107
> Project: Cassandra
> Issue Type: Sub-task
>Reporter: Paulo Motta
>Priority: Minor
>
> CASSANDRA-1181 added {{-XX:ThreadPriorityPolicy=42}} jvm flag to support
> setting native thread priority without root (based on the workaround
> described on
> http://tech.stolsvik.com/2010/01/linux-java-thread-priorities-workaround.html).
> On Java9 this wokaround will not longer be possible due to [JEP
> 245|https://bugs.openjdk.java.net/browse/JDK-8059557] so this flag should be
> removed.
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[jira] [Commented] (CASSANDRA-13107) Remove -XX:ThreadPriorityPolicy=42 jvm flag
[
https://issues.apache.org/jira/browse/CASSANDRA-13107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16143209#comment-16143209
]
Jeff Jirsa commented on CASSANDRA-13107:
Compaction has changed so much since CASSANDRA-1181 that I really dont believe
we still need to deprioritize it in 2017. [~krummas] / [~ato...@datastax.com] /
[~tjake] , how do you three feel about removing that flag entirely?
> Remove -XX:ThreadPriorityPolicy=42 jvm flag
> ---
>
> Key: CASSANDRA-13107
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13107
> Project: Cassandra
> Issue Type: Sub-task
>Reporter: Paulo Motta
>Priority: Minor
>
> CASSANDRA-1181 added {{-XX:ThreadPriorityPolicy=42}} jvm flag to support
> setting native thread priority without root (based on the workaround
> described on
> http://tech.stolsvik.com/2010/01/linux-java-thread-priorities-workaround.html).
> On Java9 this wokaround will not longer be possible due to [JEP
> 245|https://bugs.openjdk.java.net/browse/JDK-8059557] so this flag should be
> removed.
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[jira] [Commented] (CASSANDRA-13107) Remove -XX:ThreadPriorityPolicy=42 jvm flag
[
https://issues.apache.org/jira/browse/CASSANDRA-13107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15848314#comment-15848314
]
Paulo Motta commented on CASSANDRA-13107:
-
[~weideng] can probably be addressed here. do you have a production cluster or
testbed where you can test the latency impact during compaction of removing
this option in a subset of the nodes? this would be the easier approach.
> Remove -XX:ThreadPriorityPolicy=42 jvm flag
> ---
>
> Key: CASSANDRA-13107
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13107
> Project: Cassandra
> Issue Type: Sub-task
>Reporter: Paulo Motta
>Priority: Minor
>
> CASSANDRA-1181 added {{-XX:ThreadPriorityPolicy=42}} jvm flag to support
> setting native thread priority without root (based on the workaround
> described on
> http://tech.stolsvik.com/2010/01/linux-java-thread-priorities-workaround.html).
> On Java9 this wokaround will not longer be possible due to [JEP
> 245|https://bugs.openjdk.java.net/browse/JDK-8059557] so this flag should be
> removed.
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[jira] [Commented] (CASSANDRA-13107) Remove -XX:ThreadPriorityPolicy=42 jvm flag
[
https://issues.apache.org/jira/browse/CASSANDRA-13107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15805106#comment-15805106
]
Wei Deng commented on CASSANDRA-13107:
--
Do we need to create a related JIRA to track the need to find another
workaround/solution so that non-root C* process can still lower priority of
some threads?
> Remove -XX:ThreadPriorityPolicy=42 jvm flag
> ---
>
> Key: CASSANDRA-13107
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13107
> Project: Cassandra
> Issue Type: Sub-task
>Reporter: Paulo Motta
>Priority: Minor
>
> CASSANDRA-1181 added {{-XX:ThreadPriorityPolicy=42}} jvm flag to support
> setting native thread priority without root (based on the workaround
> described on
> http://tech.stolsvik.com/2010/01/linux-java-thread-priorities-workaround.html).
> On Java9 this wokaround will not longer be possible due to [JEP
> 245|https://bugs.openjdk.java.net/browse/JDK-8059557] so this flag should be
> removed.
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