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https://issues.apache.org/jira/browse/HDDS-8043?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sammi Chen updated HDDS-8043:
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Description:
Previously rocksdb statistics are not enabled by default due to
# there are two many rocksdb instances on DN. It's hard to find the
information of one specific container rocksdb instance. So for DN, this
function is actually not usable.
# enable rocksdb statistics may have performance impact, around 5%~10%.
[Link.|https://github.com/facebook/rocksdb/wiki/Statistics]
Now with schema V3, one rocksdb per volume, there is only a few number of
rocksdb instances. Although the rocksdb statistics may introduce some
performance overhead, but it's very useful for real-time rocksdb performance
diagnose and investigation.
was:
Previously rocksdb statistics are not enabled by default due to
# there are two many rocksdb instances on DN. It's hard to find the
information of one specific container rocksdb instance. So for DN, this
function is actually not usable.
# enable rocksdb statistics may have performance impact, around 5%~10%.
Now with schema V3, one rocksdb per volume, there is only a few number of
rocksdb instances. Although the rocksdb statistics may introduce some
performance overhead, but it's very useful for real-time rocksdb performance
diagnose and investigation.
> Enable rocksdb statistics metrics by default
> --------------------------------------------
>
> Key: HDDS-8043
> URL: https://issues.apache.org/jira/browse/HDDS-8043
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Sammi Chen
> Assignee: Sammi Chen
> Priority: Major
>
> Previously rocksdb statistics are not enabled by default due to
> # there are two many rocksdb instances on DN. It's hard to find the
> information of one specific container rocksdb instance. So for DN, this
> function is actually not usable.
> # enable rocksdb statistics may have performance impact, around 5%~10%.
> [Link.|https://github.com/facebook/rocksdb/wiki/Statistics]
> Now with schema V3, one rocksdb per volume, there is only a few number of
> rocksdb instances. Although the rocksdb statistics may introduce some
> performance overhead, but it's very useful for real-time rocksdb performance
> diagnose and investigation.
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