Fault scenario of dead root drive on RS causes cluster lockup
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Key: HBASE-2575
URL: https://issues.apache.org/jira/browse/HBASE-2575
Project: Hadoop HBase
Issue Type: Bug
Components: regionserver
Affects Versions: 0.21.0
Reporter: Todd Lipcon
Priority: Critical
We performed a fault test where we physically pulled the root drive out of a
machine while it was on. The regionserver continued to run fine with existing
clients. But any new clients that tried to connect to it for RPC would not work
correctly. So when I started a new client, that client made no progress.
Despite this, the RS continued to happily heartbeat to the master, so the
master did not remove it from the cluster. Note that in this case, we were
logging to NFS, and the logs continued to write, but no exceptions shown.
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