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  1. Hadoop HDFS
  2. HDFS-9530

ReservedSpace is not cleared for abandoned Blocks

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    • Hadoop Flags:
      Reviewed

      Description

      i think there are bugs in HDFS
      ===============================================================================
      here is config
      <property>
      <name>dfs.datanode.data.dir</name>
      <value>
      file:///mnt/disk4,file:///mnt/disk1,file:///mnt/disk3,file:///mnt/disk2
      </value>
      </property>

      here is dfsadmin report

      [hadoop@worker-1 ~]$ hadoop dfsadmin -report
      DEPRECATED: Use of this script to execute hdfs command is deprecated.
      Instead use the hdfs command for it.

      Configured Capacity: 240769253376 (224.23 GB)
      Present Capacity: 238604832768 (222.22 GB)
      DFS Remaining: 215772954624 (200.95 GB)
      DFS Used: 22831878144 (21.26 GB)
      DFS Used%: 9.57%
      Under replicated blocks: 4
      Blocks with corrupt replicas: 0
      Missing blocks: 0

      -------------------------------------------------
      Live datanodes (3):

      Name: 10.117.60.59:50010 (worker-2)
      Hostname: worker-2
      Decommission Status : Normal
      Configured Capacity: 80256417792 (74.74 GB)
      DFS Used: 7190958080 (6.70 GB)
      Non DFS Used: 721473536 (688.05 MB)
      DFS Remaining: 72343986176 (67.38 GB)
      DFS Used%: 8.96%
      DFS Remaining%: 90.14%
      Configured Cache Capacity: 0 (0 B)
      Cache Used: 0 (0 B)
      Cache Remaining: 0 (0 B)
      Cache Used%: 100.00%
      Cache Remaining%: 0.00%
      Xceivers: 1
      Last contact: Wed Dec 09 15:55:02 CST 2015

      Name: 10.168.156.0:50010 (worker-3)
      Hostname: worker-3
      Decommission Status : Normal
      Configured Capacity: 80256417792 (74.74 GB)
      DFS Used: 7219073024 (6.72 GB)
      Non DFS Used: 721473536 (688.05 MB)
      DFS Remaining: 72315871232 (67.35 GB)
      DFS Used%: 9.00%
      DFS Remaining%: 90.11%
      Configured Cache Capacity: 0 (0 B)
      Cache Used: 0 (0 B)
      Cache Remaining: 0 (0 B)
      Cache Used%: 100.00%
      Cache Remaining%: 0.00%
      Xceivers: 1
      Last contact: Wed Dec 09 15:55:03 CST 2015

      Name: 10.117.15.38:50010 (worker-1)
      Hostname: worker-1
      Decommission Status : Normal
      Configured Capacity: 80256417792 (74.74 GB)
      DFS Used: 8421847040 (7.84 GB)
      Non DFS Used: 721473536 (688.05 MB)
      DFS Remaining: 71113097216 (66.23 GB)
      DFS Used%: 10.49%
      DFS Remaining%: 88.61%
      Configured Cache Capacity: 0 (0 B)
      Cache Used: 0 (0 B)
      Cache Remaining: 0 (0 B)
      Cache Used%: 100.00%
      Cache Remaining%: 0.00%
      Xceivers: 1
      Last contact: Wed Dec 09 15:55:03 CST 2015

      ================================================================================

      when running hive job , dfsadmin report as follows

      [hadoop@worker-1 ~]$ hadoop dfsadmin -report
      DEPRECATED: Use of this script to execute hdfs command is deprecated.
      Instead use the hdfs command for it.

      Configured Capacity: 240769253376 (224.23 GB)
      Present Capacity: 108266011136 (100.83 GB)
      DFS Remaining: 80078416384 (74.58 GB)
      DFS Used: 28187594752 (26.25 GB)
      DFS Used%: 26.04%
      Under replicated blocks: 7
      Blocks with corrupt replicas: 0
      Missing blocks: 0

      -------------------------------------------------
      Live datanodes (3):

      Name: 10.117.60.59:50010 (worker-2)
      Hostname: worker-2
      Decommission Status : Normal
      Configured Capacity: 80256417792 (74.74 GB)
      DFS Used: 9015627776 (8.40 GB)
      Non DFS Used: 44303742464 (41.26 GB)
      DFS Remaining: 26937047552 (25.09 GB)
      DFS Used%: 11.23%
      DFS Remaining%: 33.56%
      Configured Cache Capacity: 0 (0 B)
      Cache Used: 0 (0 B)
      Cache Remaining: 0 (0 B)
      Cache Used%: 100.00%
      Cache Remaining%: 0.00%
      Xceivers: 693
      Last contact: Wed Dec 09 15:37:35 CST 2015

      Name: 10.168.156.0:50010 (worker-3)
      Hostname: worker-3
      Decommission Status : Normal
      Configured Capacity: 80256417792 (74.74 GB)
      DFS Used: 9163116544 (8.53 GB)
      Non DFS Used: 47895897600 (44.61 GB)
      DFS Remaining: 23197403648 (21.60 GB)
      DFS Used%: 11.42%
      DFS Remaining%: 28.90%
      Configured Cache Capacity: 0 (0 B)
      Cache Used: 0 (0 B)
      Cache Remaining: 0 (0 B)
      Cache Used%: 100.00%
      Cache Remaining%: 0.00%
      Xceivers: 750
      Last contact: Wed Dec 09 15:37:36 CST 2015

      Name: 10.117.15.38:50010 (worker-1)
      Hostname: worker-1
      Decommission Status : Normal
      Configured Capacity: 80256417792 (74.74 GB)
      DFS Used: 10008850432 (9.32 GB)
      Non DFS Used: 40303602176 (37.54 GB)
      DFS Remaining: 29943965184 (27.89 GB)
      DFS Used%: 12.47%
      DFS Remaining%: 37.31%
      Configured Cache Capacity: 0 (0 B)
      Cache Used: 0 (0 B)
      Cache Remaining: 0 (0 B)
      Cache Used%: 100.00%
      Cache Remaining%: 0.00%
      Xceivers: 632
      Last contact: Wed Dec 09 15:37:36 CST 2015

      =========================================================================
      but, df output is as follows on worker-1
      [hadoop@worker-1 ~]$ df
      Filesystem 1K-blocks Used Available Use% Mounted on
      /dev/xvda1 20641404 4229676 15363204 22% /
      tmpfs 8165456 0 8165456 0% /dev/shm
      /dev/xvdc 20642428 2596920 16996932 14% /mnt/disk3
      /dev/xvdb 20642428 2692228 16901624 14% /mnt/disk4
      /dev/xvdd 20642428 2445852 17148000 13% /mnt/disk2
      /dev/xvde 20642428 2909764 16684088 15% /mnt/disk1

      df output conflitcs with dfsadmin report

      any suggestions?

        Attachments

        1. HDFS-9530-01.patch
          7 kB
          Brahma Reddy Battula
        2. HDFS-9530-branch-2.7-001.patch
          6 kB
          Brahma Reddy Battula
        3. HDFS-9530-02.patch
          6 kB
          Brahma Reddy Battula
        4. HDFS-9530-branch-2.7-002.patch
          7 kB
          Brahma Reddy Battula
        5. HDFS-9530-03.patch
          7 kB
          Brahma Reddy Battula
        6. HDFS-9530-branch-2.6.patch
          7 kB
          Brahma Reddy Battula

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              • Assignee:
                brahmareddy Brahma Reddy Battula
                Reporter:
                ferhui Fei Hui
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