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From <yogesh.kuma...@wipro.com>
Subject How to do HADOOP RECOVERY ???
Date Mon, 29 Oct 2012 08:33:55 GMT
Hi All,

I run this command

hadoop fsck -Ddfs.http.address=localhost:50070 /

and found that some blocks are missing and corrupted

results comes like..

/user/hive/warehouse/tt_report_htcount/000000_0: MISSING 2 blocks of total size 71826120 B..
/user/hive/warehouse/tt_report_perhour_hit/000000_0: CORRUPT block blk_75438572351073797

/user/hive/warehouse/tt_report_perhour_hit/000000_0: MISSING 1 blocks of total size 1531 B..
/user/hive/warehouse/vw_cc/000000_0: CORRUPT block blk_-1280621588594166706

/user/hive/warehouse/vw_cc/000000_0: MISSING 1 blocks of total size 1774 B..
/user/hive/warehouse/vw_report2/000000_0: CORRUPT block blk_8637186139854977656

/user/hive/warehouse/vw_report2/000000_0: CORRUPT block blk_4019541597438638886

/user/hive/warehouse/vw_report2/000000_0: MISSING 2 blocks of total size 71826120 B..
/user/zoo/foo.har/_index: CORRUPT block blk_3404803591387558276

Total size:    7600625746 B
 Total dirs:    205
 Total files:    173
 Total blocks (validated):    270 (avg. block size 28150465 B)
  MISSING SIZE:        7600625742 B
 Minimally replicated blocks:    1 (0.37037036 %)
 Over-replicated blocks:    0 (0.0 %)
 Under-replicated blocks:    0 (0.0 %)
 Mis-replicated blocks:        0 (0.0 %)
 Default replication factor:    1
 Average block replication:    0.0037037036
 Corrupt blocks:        269
 Missing replicas:        0 (0.0 %)
 Number of data-nodes:        1
 Number of racks:        1

Is there any way to recover them ?

Please help and suggest

Thanks & Regards
yogesh kumar

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