[
https://issues.apache.org/jira/browse/HBASE-17608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Duo Zhang updated HBASE-17608:
------------------------------
Attachment: HBASE-17608-v4.patch
Fix the javadoc warning.
> Add suspend support for RawScanResultConsumer
> ---------------------------------------------
>
> Key: HBASE-17608
> URL: https://issues.apache.org/jira/browse/HBASE-17608
> Project: HBase
> Issue Type: Sub-task
> Components: asyncclient, Client, scan
> Affects Versions: 2.0.0
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Fix For: 2.0.0
>
> Attachments: HBASE-17608.patch, HBASE-17608-v1.patch,
> HBASE-17608-v2.patch, HBASE-17608-v3.patch, HBASE-17608-v4.patch
>
>
> Now for the AsyncResultScanner, we can only close the scanner if we reach the
> cache size limit and open a new scanner later. This will breaks the region
> level consistency.
> For example, you put 10 rows to the region, and open a scanner to scan it.
> The scanner returns 5 rows at the first time and the cache is full, so it
> closes the background scanner. And before you reopens the scanner to fetch
> data, the remaining 5 rows has been deleted and a compaction makes them gone
> for ever. Then after you reopen the scanner you can not see the remaining 5
> rows.
> So here we should keep the scanner open at RS side to prevent the data below
> the mvcc read point of this scanner being deleted.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
