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[HDFS-3452] BKJM:Switch from standby to active fails and NN gets shut down due to delay in clearing of lock - HDFS - [issue]
...Normal switch fails. (BKjournalManager zk session timeout is 3000 and ZKFC session timeout is 5000. By the time control comes to acquire lock the previous lock is not released which leads to...
http://issues.apache.org/jira/browse/HDFS-3452    Author: suja s, 2014-09-04, 01:59
[HDFS-3541] Deadlock between recovery, xceiver and packet responder - HDFS - [issue]
...Block Recovery initiated while write in progress at Datanode side. Found a lock between recovery, xceiver and packet responder....
http://issues.apache.org/jira/browse/HDFS-3541    Author: suja s, 2014-09-04, 01:59
[HDFS-3736] Failure in starting NN due to fsimage loading failure - HDFS - [issue]
...Came across a situation as follows in our test environment.NNs running in HA mode.While uploading checkpoint, MD5 file renaming from tmp to actual file failed due to some reason which is unk...
http://issues.apache.org/jira/browse/HDFS-3736    Author: suja s, 2013-09-05, 09:22
[HDFS-3512] Delay in scanning blocks at DN side when there are huge number of blocks - HDFS - [issue]
...Block scanner maintains the full list of blocks at DN side in a map and there is no differentiation between the blocks which are already scanned and the ones not scanend. For every check (ie...
http://issues.apache.org/jira/browse/HDFS-3512    Author: suja s, 2013-06-30, 05:19
[HDFS-3161] 20 Append: Excluded DN replica from recovery should be removed from DN. - HDFS - [issue]
...1) DN1->DN2->DN3 are in pipeline.2) Client killed abruptly3) one DN has restarted , say DN34) In DN3 info.wasRecoveredOnStartup() will be true5) NN recovery triggered, DN3 skipped from...
http://issues.apache.org/jira/browse/HDFS-3161    Author: suja s, 2013-05-14, 06:12
[HDFS-3477] FormatZK and ZKFC startup can fail due to zkclient connection establishment delay - HDFS - [issue]
...Format and ZKFC startup flows continue further after creation of zkclient connection without waiting to check whether the connection is completely established. This  leads to failure at...
http://issues.apache.org/jira/browse/HDFS-3477    Author: suja s, 2012-12-06, 07:12
[HDFS-3443] Unable to catch up edits during standby to active switch due to NPE - HDFS - [issue]
...Start NNLet NN standby services be started.Before the editLogTailer is initialised start ZKFC and allow the activeservices start to proceed further.Here editLogTailer.catchupDuringFailover()...
http://issues.apache.org/jira/browse/HDFS-3443    Author: suja s, 2012-10-25, 06:32
[HDFS-4022] Replication not happening for appended block - HDFS - [issue]
...Block written and finalizedLater append called. Block GenTS got changed.DN side log "Can't send invalid block BP-407900822-192.xx.xx.xx-1348830837061:blk_-9185630731157263852_108738" logged ...
http://issues.apache.org/jira/browse/HDFS-4022    Author: suja s, 2012-10-21, 15:03
[HDFS-3162] BlockMap's corruptNodes count and CorruptReplicas map count is not matching. - HDFS - [issue]
...Even after invalidating the block, continuosly below log is comingInconsistent number of corrupt replicas for blk_1332906029734_1719blockMap has 0 but corrupt replicas map has 1...
http://issues.apache.org/jira/browse/HDFS-3162    Author: suja s, 2012-10-17, 23:22
[HDFS-3441] Race condition between rolling logs at active NN and purging at standby - HDFS - [issue]
...Standby NN has got the ledgerlist with list of all files, including the inprogress file (with say inprogress_val1)Active NN has done finalization and created new inprogress file.Standby when...
http://issues.apache.org/jira/browse/HDFS-3441    Author: suja s, 2012-09-07, 22:09
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