[
https://issues.apache.org/jira/browse/PHOENIX-5082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16729636#comment-16729636
]
Lars Hofhansl edited comment on PHOENIX-5082 at 12/27/18 2:18 PM:
------------------------------------------------------------------
8. Skipping of uncommitted rows seems also *very* slow. I upserted about 400k
rows, doing a count\(*) from another client times out after 180s (I have set
all the timeouts to 180s).
In the profiler I see that all the time is spent in
{{readCommitTimestampFromShadowCell}}, and that is spending all the time
Region.get(...) which causes a seek, which is slow with FAST_DIFF encoding.
I'll try with ROW_INDEX_V1 encoding - which I think should be the default for
Phoenix anyway.
was (Author: lhofhansl):
8. Skipping of uncommitted rows seems also very slow. I upserted about 400k
rows, doing a count(*) from another client times out after 180s (I have set all
the timeouts to 180s).
> Observations about the Phoenix-Omid integration
> -----------------------------------------------
>
> Key: PHOENIX-5082
> URL: https://issues.apache.org/jira/browse/PHOENIX-5082
> Project: Phoenix
> Issue Type: Task
> Reporter: Lars Hofhansl
> Assignee: Yonatan Gottesman
> Priority: Major
> Attachments: Omid-profile.png, Omid-sample.png
>
>
> Filing this issue to track my observations and perhaps some fixes.
> [~ohads]
> [~jamestaylor]
> [~yonigo]
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
