Following Hadoop Recovery topics are covered in this blog. These steps are useful for hadoop admins.
Hive bug HIVE-12500
HDP 2.3.2 has a bug that does’t support Oozie -> Hive2 -> hive ZK url. This has been fixed in HDP-2.3.4
dncp_block_verification.log.prev too large
Seen this bug in hdp2.3.2
Using hadoop version : Hadoop 2.0.0-cdh4.7.0
can see on one datanode, dncp_block_verification.log.prev is too large.
Is it safe to delete this file?
-rw-r--r-- 1 hdfs hdfs 1166438426181 Oct 31 09:34 dncp_block_verification.log.prev -rw-r--r-- 1 hdfs hdfs 138576163 Dec 15 22:16 dncp_block_verification.log.curr
This is similar to
HDFS-6114 but that is for dncp_block_verification.log.curr file.