Aaron Levin created FLINK-14110:
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Summary: Deleting state.backend.rocksdb.localdir causes silent
failure
Key: FLINK-14110
URL: https://issues.apache.org/jira/browse/FLINK-14110
Project: Flink
Issue Type: Bug
Components: Runtime / State Backends
Affects Versions: 1.9.0, 1.8.1
Environment: Flink {{1.8.1}} and {{1.9.0}}.
JVM 8
Reporter: Aaron Levin
Suppose {{state.backend.rocksdb.localdir}} is configured as:
{noformat}
state.backend.rocksdb.localdir: /flink/tmp
{noformat}
If I then run{{rm -rf /flink/tmp/job_*}} on a host while a Flink application is
running, I will observe the following:
* throughput of my operators running on that host will drop to zero
* the application will not fail or restart
* the task manager will not fail or restart
* in most cases there is nothing in the logs to indicate a failure (I've run
this several times and only once seen an exception - I believe I was lucky and
deleted those directories during a checkpoint or something)
The desired behaviour here would be to throw an exception and crash, instead of
silently dropping throughput to zero. Restarting the Task Manager will resolve
the issues.
I only tried this on Flink {{1.8.1}} and {{1.9.0}}.
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