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https://issues.apache.org/jira/browse/HBASE-21520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16719956#comment-16719956
]
Zheng Hu commented on HBASE-21520:
----------------------------------
I tried to make the following comment, and run the UT again, found it run so
fast ..
{code}
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
index b5b853a..a5a3006 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
@@ -396,7 +396,7 @@ public class StoreFileScanner implements KeyValueScanner {
if (useBloom) {
// check ROWCOL Bloom filter first.
if (reader.getBloomFilterType() == BloomType.ROWCOL) {
- haveToSeek = reader.passesGeneralRowColBloomFilter(kv);
+ // haveToSeek = reader.passesGeneralRowColBloomFilter(kv);
} else if (canOptimizeForNonNullColumn
&& ((PrivateCellUtil.isDeleteFamily(kv)
|| PrivateCellUtil.isDeleteFamilyVersion(kv)))) {
{code}
!TestMultiColumnScanner.png!
> TestMultiColumnScanner cost long time when using ROWCOL bloom type
> ------------------------------------------------------------------
>
> Key: HBASE-21520
> URL: https://issues.apache.org/jira/browse/HBASE-21520
> Project: HBase
> Issue Type: Bug
> Components: test
> Reporter: Zheng Hu
> Assignee: Zheng Hu
> Priority: Major
> Attachments: TestMultiColumnScanner.png, rowcol.txt
>
>
> The TestMultiColumnScanner is easy to be timeout, you can see HBASE-21517.
> In my localhost, when I set the parameters to be {
> Compression.Algorithm.NONE, BloomType.ROW, false }, it took about 5 seconds.
> but if I set the parameters to be { Compression.Algorithm.NONE,
> BloomType.ROWCOL, false }, it would take about 45 seconds, which means
> ROWCOL cost much more time than ROW.
> Need to find out what's wrong with this ut.
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