[jira] Updated: (HADOOP-2467) [hbase] scanner truncates resultset when > 1 column families

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

     [ https://issues.apache.org/jira/browse/HADOOP-2467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HADOOP-2467:
--------------------------

    Attachment: scanner.patch

Problem was in filters.  If multiple column families, the same filter instance would be used by all store scanners.  For filters that have state, e.g. WhileMatchRowFilter, we don't want the state of one store scanner effecting the scanning over in another store.  Fix was to make a filter instance per store involved in a particular scanning.

Below is commit message:

{code}
M  src/contrib/hbase/src/test/org/apache/hadoop/hbase/TestScanner2.java
    (testScanningMultipleFamiliesOfDifferentVintage): Added.
M  src/contrib/hbase/src/test/org/apache/hadoop/hbase/HBaseTestCase.java
    Add javadoc.
M  src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStoreFile.java
    Add change that was supposed to have been committed for HADOOP-2407.
M  src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStore.java
    Spacing.
M  src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStoreKey.java
    (COLUMN_FAMILY_DELIMITER): Added.
    (getColonOffset): changed implementation to make it run faster.
    (compareTo): Reformatted.
M  src/contrib/hbase/src/java/org/apache/hadoop/hbase/HTable.java
    If no timestamp, use HConstants.LATEST_TIMESTAMP rather than
    current time so we get the newest version that exists.
M  src/contrib/hbase/src/java/org/apache/hadoop/hbase/HMaster.java
    Was missing a '{] in toString.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HRegion.java
    (checkColumn): Remove double Text instantiation.
    Creating scanners for a store, make new instance if > 1 family
    so state set in one families scanning does not effect the 
    scanning of another.
M  src/contrib/hbase/src/java/org/apache/hadoop/hbase/util/Writables.java
    Add clone local until HADOOP-2469 gets applied.
{code}

> [hbase] scanner truncates resultset when > 1 column families
> ------------------------------------------------------------
>
>                 Key: HADOOP-2467
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2467
>             Project: Hadoop
>          Issue Type: Bug
>          Components: contrib/hbase
>            Reporter: stack
>         Attachments: scanner.patch
>
>
> Scanner will close when first of n families runs out of results.

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