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  1. HBase
  2. HBASE-21225

Having RPC & Space quota on a table/Namespace doesn't allow space quota to be removed using 'NONE'

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      A part of HBASE-20705 is still unresolved. In that Jira it was assumed that problem is: when table having both rpc & space quotas is dropped (with hbase.quota.remove.on.table.delete set as true), the rpc quota is not set to be dropped along with table-drops, and space quota was not being able to be removed completely because of the "EMPTY" row that rpc quota left even after removing. 

      The proposed solution for that was to make sure that rpc quota didn't leave empty rows after removal of quota. And setting automatic removal of rpc quota with table drops. That made sure that space quotas can be recreated/removed.

      But all this was under the assumption that hbase.quota.remove.on.table.delete is set as true. When it is set as false, the same issue can reproduced. Also the below shown steps can used to reproduce the issue without table-drops.

      hbase(main):005:0> create 't2','cf'
      Created table t2
      Took 0.7619 seconds
      => Hbase::Table - t2
      hbase(main):006:0> set_quota TYPE => THROTTLE, TABLE => 't2', LIMIT => '10M/sec'
      Took 0.0514 seconds
      hbase(main):007:0> set_quota TYPE => SPACE, TABLE => 't2', LIMIT => '1G', POLICY => NO_WRITES
      Took 0.0162 seconds
      hbase(main):008:0> list_quotas
      OWNER                      QUOTAS
       TABLE => t2               TYPE => THROTTLE, THROTTLE_TYPE => REQUEST_SIZE, LIMIT => 10M/sec, SCOPE =>
                                 MACHINE
       TABLE => t2               TYPE => SPACE, TABLE => t2, LIMIT => 1073741824, VIOLATION_POLICY => NO_WRIT
                                 ES
      2 row(s)
      Took 0.0716 seconds
      hbase(main):009:0> set_quota TYPE => SPACE, TABLE => 't2', LIMIT => NONE
      Took 0.0082 seconds
      hbase(main):010:0> list_quotas
      OWNER                           QUOTAS
       TABLE => t2                    TYPE => THROTTLE, THROTTLE_TYPE => REQUEST_SIZE, LIMIT => 10M/sec, SCOPE => MACHINE
       TABLE => t2                    TYPE => SPACE, TABLE => t2, REMOVE => true
      2 row(s)
      Took 0.0254 seconds
      hbase(main):011:0> set_quota TYPE => SPACE, TABLE => 't2', LIMIT => '1G', POLICY => NO_WRITES
      Took 0.0082 seconds
      hbase(main):012:0> list_quotas
      OWNER                           QUOTAS
       TABLE => t2                    TYPE => THROTTLE, THROTTLE_TYPE => REQUEST_SIZE, LIMIT => 10M/sec, SCOPE => MACHINE
       TABLE => t2                    TYPE => SPACE, TABLE => t2, REMOVE => true
      2 row(s)
      Took 0.0411 seconds
      

      Attachments

        1. hbase-21225.master.005.patch
          9 kB
          Sakthi
        2. hbase-21225.master.004.patch
          13 kB
          Sakthi
        3. hbase-21225.master.003.patch
          27 kB
          Sakthi
        4. hbase-21225.master.002.patch
          29 kB
          Sakthi
        5. hbase-21225.master.001.patch
          11 kB
          Sakthi

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              sakthi Sakthi
              sakthi Sakthi
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                Updated:
                Resolved: