Devaraj Das created HDFS-5016:
---------------------------------
Summary: Heartbeating thread blocks under some failure conditions
leading to loss of datanodes
Key: HDFS-5016
URL: https://issues.apache.org/jira/browse/HDFS-5016
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Devaraj Das
Priority: Blocker
Fix For: 2.1.0-beta
In the testing of some failure scenarios for HBase MTTR, we have been
simulating node failures via firewalling of nodes (where all communication
ports would be firewalled except ssh's port). We have noticed that when a
(data)node is firewalled, we lose certain other datanodes - those that were
involved in some communication with the firewalled node before the latter was
firewalled. Will attach jstack output from one of the lost datanodes. The
heartbeating thread seems to be locked up.
This jira is to track a fix for the problem.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
