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From "Y. SREENIVASULU REDDY (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13670) [HBase MOB] ExpiredMobFileCleaner tool is not deleting the expired mob data.
Date Tue, 12 May 2015 05:48:00 GMT
Y. SREENIVASULU REDDY created HBASE-13670:
---------------------------------------------

             Summary: [HBase MOB] ExpiredMobFileCleaner tool is not deleting the expired mob
data.
                 Key: HBASE-13670
                 URL: https://issues.apache.org/jira/browse/HBASE-13670
             Project: HBase
          Issue Type: Bug
          Components: mob
    Affects Versions: hbase-11339
            Reporter: Y. SREENIVASULU REDDY
             Fix For: hbase-11339


ExpiredMobFileCleaner tool is not deleting the expired mob data.

steps to reproduce:
===============
1.Create the table with one column family as mob and set the TTL for mob columnfamily very
less.
{code}
hbase(main):020:0> describe 'mobtab'
Table mobtab is ENABLED
mobtab
COLUMN FAMILIES DESCRIPTION
{NAME => 'mobcf',  IS_MOB => 'true',MOB_THRESHOLD => '102400', VERSIONS => '1',
KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => '60 SECONDS
(1 MINUTE)', MIN_VERSIONS => '0', REPLICATION_SCOPE => '0', BL
OOMFILTER => 'ROW', IN_MEMORY => 'false', COMPRESSION => 'NONE', BLOCKCACHE =>
'true', BLOCKSIZE => '65536'}
{NAME => 'norcf', BLOOMFILTER => 'ROW', VERSIONS => '1', IN_MEMORY => 'false',
KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'NONE', COMPRESSION => 'NONE',
TTL => 'FOREVER', MIN_VERSIONS => '0', BL
OCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '0'}
2 row(s) in 0.0650 seconds
{code}
2. then insert the mob data into the table(mobcf), and normal data into the another columnFamily(norcf).
3. flush the table.
4. scan the table before TTL expire. (able to fetch the data)
5. scan the table after TTL got expired, as a result mob data should not display, and mob
file should exist in hdfs.
5. run ExpiredMobFileCleaner tool manually to clean the expired mob data for TTL expired data.
{code}
./hbase org.apache.hadoop.hbase.mob.ExpiredMobFileCleaner mobtab mobcf
{code}

{code}
client log_message:

2015-05-09 18:03:37,731 INFO  [main] mob.ExpiredMobFileCleaner: Cleaning the expired MOB files
of mobcf in mobtab
2015-05-09 18:03:37,734 INFO  [main] hfile.CacheConfig: CacheConfig:disabled
2015-05-09 18:03:37,738 INFO  [main] mob.MobUtils: MOB HFiles older than 8 May 2015 18:30:00
GMT will be deleted!
2015-05-09 18:03:37,971 DEBUG [main] mob.MobUtils: Checking file d41d8cd98f00b204e9800998ecf8427e20150509c9108e1a9252418abbfd54323922c518
2015-05-09 18:03:37,971 INFO  [main] mob.MobUtils: 0 expired mob files are deleted
2015-05-09 18:03:37,971 INFO  [main] client.ConnectionManager$HConnectionImplementation: Closing
master protocol: MasterService
{code}

*problem:*

If we run ExpiredMobFileCleaner tool manually, it is not deleting the expired mob data. For
deletion it is considering default time period "hbase.master.mob.ttl.cleaner.period".
With this Time period "hbase.master.mob.ttl.cleaner.period" only ExpiredMobFileCleanerChore
should consider.

{code}
conf:

<property>
<name>hbase.master.mob.ttl.cleaner.period</name>
<value>86400000</value>
<source>hbase-default.xml</source>
</property>

{code}



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