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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-13193) RegionScannerImpl filters should not be reset if a partial Result is returned
Date Mon, 16 Mar 2015 20:27:38 GMT

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

stack updated HBASE-13193:
--------------------------
       Resolution: Fixed
    Fix Version/s: 1.1.0
                   2.0.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

Pushed to branch-1+. Thanks for the patch [~jonathan.lawlor]

> 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
>             Fix For: 2.0.0, 1.1.0
>
>         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, HBASE-13193-v5.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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