[jira] Updated: (HBASE-3040) BlockIndex readIndex too slowly in heavy write scenario

["andychen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-3040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

andychen updated HBASE-3040:
----------------------------

    Attachment: load-all-index-in-one-dfs-read.patch

add patch

> BlockIndex readIndex too slowly in heavy write scenario
> -------------------------------------------------------
>
>                 Key: HBASE-3040
>                 URL: https://issues.apache.org/jira/browse/HBASE-3040
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>    Affects Versions: 0.20.6
>         Environment: 1master, 7 region servers, 4 * 7 clients(all clients run on region server host),  sequential put
>            Reporter: andychen
>         Attachments: load-all-index-in-one-dfs-read.patch
>
>
> region size is configured with 128M,  block size is 64K, the table has 5 column families
> at the beginning, when region split, master assigns daughters to new region servers, new region server open region, readIndex of this region's storefile(about 1000 blocks) spent 30~50ms, with the data import region server spent more and more time (sometimes up to several seconds) to load 1000 block indices
> at right now, we resolve this issue by getting all indices of one hfile within one DFS read instead of 1000 reads.
> is there any other better resolution?

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.