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https://issues.apache.org/jira/browse/HBASE-13670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14539431#comment-14539431
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Anoop Sam John commented on HBASE-13670:
----------------------------------------
That looks correct explanation.
[[email protected]] do we need to change the date time precision in MOB
file name to more than date?
> [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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