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From "Jonathan Lawlor (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-13193) RegionScannerImpl filters should not be reset if a partial Result is returned
Date Wed, 11 Mar 2015 19:43:39 GMT

     [ https://issues.apache.org/jira/browse/HBASE-13193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jonathan Lawlor updated HBASE-13193:
    Attachment: HBASE-13193-v4.patch

The issue with the patch applying to branch 0.94 has been called out in HBASE-13208. Re-attaching
to trigger a precommit build (last attachment didn't start one)

> RegionScannerImpl filters should not be reset if a partial Result is returned
> -----------------------------------------------------------------------------
>                 Key: HBASE-13193
>                 URL: https://issues.apache.org/jira/browse/HBASE-13193
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jonathan Lawlor
>            Assignee: Jonathan Lawlor
>         Attachments: HBASE-13193-v1.patch, HBASE-13193-v2.patch, HBASE-13193-v3.patch,
HBASE-13193-v4.patch, HBASE-13193-v4.patch, HBASE-13193-v4.patch
> In RegionScannerImpl the filters get reset during calls to nextRaw:
> {code}
> public NextState nextRaw(List<Cell> outResults, int batchLimit, long remainingResultSize)
>         throws IOException {
>   ...
>   resetFilters();
>   if (isFilterDoneInternal()) {
>   ...
> }
> {code}
> This creates a problem when returning partial Results because filters should only be
reset in between rows (i.e. after all of the cells for a particular row have been returned).
If a partial Result is returned, there are still cells in the row that have not been evaluated
yet and we should avoid resetting the filter since it will wipe away all state information
for that filter.

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