There are 2 missing blocks. The following files may be corrupted

There are 2 missing blocks. The following files may be corrupted：

步骤1，检查文件缺失情况

可以看到，

blk_1074785806 /var/log/yarn_hislog/yarn/apps/root/logs/application_1531830253305_4290/master66_38210
blk_1074785807 /var/log/yarn_hislog/yarn/apps/root/logs/application_1531830253305_4289/master66_38210

确实各自都丢失了1个Block， 文件已经损坏，不可恢复。

[root@master66 datacollectors]# hdfs fsck /var/log/yarn_hislog/yarn/apps/root/logs/application_1531830253305_4290/master66_38210
Connecting to namenode via http://master66:50070
FSCK started by root (auth:SIMPLE) from /10.3.70.116 for path /var/log/yarn_hislog/yarn/apps/root/logs/application_1531830253305_4290/master66_38210 at Thu Sep  :: CST
.
/var/log/yarn_hislog/yarn/apps/root/logs/application_1531830253305_4290/master66_38210: CORRUPT blockpool BP--10.17.139.66- block blk_1074785806

/var/log/yarn_hislog/yarn/apps/root/logs/application_1531830253305_4290/master66_38210: MISSING  blocks of total size  B.Status: CORRUPT
 Total size:     B
 Total dirs:
 Total files:
 Total symlinks:
 Total blocks (validated):     (avg. block size  B)
  ********************************
  CORRUPT FILES:
  MISSING BLOCKS:
  MISSING SIZE:         B
  CORRUPT BLOCKS:
  ********************************
 Minimally replicated blocks:     (0.0 %)
 Over-replicated blocks:     (0.0 %)
 Under-replicated blocks:     (0.0 %)
 Mis-replicated blocks:         (0.0 %)
 Default replication factor:
 Average block replication:    0.0
 Corrupt blocks:
 Missing replicas:
 Number of data-nodes:
 Number of racks:
FSCK ended at Thu Sep  :: CST  in  milliseconds

The filesystem under path '/var/log/yarn_hislog/yarn/apps/root/logs/application_1531830253305_4290/master66_38210' is CORRUPT

步骤2，删除缺失文件

hdfs fsck -delete blk_1074785806 /var/log/yarn_hislog/yarn/apps/root/logs/application_1531830253305_4290/master66_38210
hdfs fsck -delete blk_1074785807 /var/log/yarn_hislog/yarn/apps/root/logs/application_1531830253305_4289/master66_38210

步骤3， 检查集群健康状况