[jira] [Reopened] (HBASE-24742) Improve performance of SKIP vs SEEK logic

2020-07-16 Thread Lars Hofhansl (Jira)


 [ 
https://issues.apache.org/jira/browse/HBASE-24742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Lars Hofhansl reopened HBASE-24742:
---

Lemme put this into branch-2 and master as well.

> Improve performance of SKIP vs SEEK logic
> -
>
> Key: HBASE-24742
> URL: https://issues.apache.org/jira/browse/HBASE-24742
> Project: HBase
>  Issue Type: Bug
>  Components: Performance, regionserver
>Affects Versions: 3.0.0-alpha-1, 1.7.0, 2.4.0
>Reporter: Lars Hofhansl
>Assignee: Lars Hofhansl
>Priority: Major
> Fix For: 1.7.0
>
> Attachments: hbase-1.6-regression-flame-graph.png, 
> hbase-24742-branch-1.txt
>
>
> In our testing of HBase 1.3 against the current tip of branch-1 we saw a 30% 
> slowdown in scanning scenarios.
> We tracked it back to HBASE-17958 and HBASE-19863.
> Both add comparisons to one of the tightest HBase has.
> [~bharathv]



--
This message was sent by Atlassian Jira
(v8.3.4#803005)


[jira] [Reopened] (HBASE-24742) Improve performance of SKIP vs SEEK logic

2020-07-17 Thread Nick Dimiduk (Jira)


 [ 
https://issues.apache.org/jira/browse/HBASE-24742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Nick Dimiduk reopened HBASE-24742:
--

Reopen for 2.3 backport, https://github.com/apache/hbase/pull/2081

> Improve performance of SKIP vs SEEK logic
> -
>
> Key: HBASE-24742
> URL: https://issues.apache.org/jira/browse/HBASE-24742
> Project: HBase
>  Issue Type: Bug
>  Components: Performance, regionserver
>Affects Versions: 3.0.0-alpha-1, 1.7.0, 2.4.0
>Reporter: Lars Hofhansl
>Assignee: Lars Hofhansl
>Priority: Major
> Fix For: 3.0.0-alpha-1, 1.7.0, 2.4.0, 2.1.10, 2.2.6
>
> Attachments: 24742-master.txt, hbase-1.6-regression-flame-graph.png, 
> hbase-24742-branch-1.txt
>
>
> In our testing of HBase 1.3 against the current tip of branch-1 we saw a 30% 
> slowdown in scanning scenarios.
> We tracked it back to HBASE-17958 and HBASE-19863.
> Both add comparisons to one of the tightest HBase has.
> [~bharathv]



--
This message was sent by Atlassian Jira
(v8.3.4#803005)