Stefan Podkowinski created CASSANDRA-15142:
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Summary: Fix errors on repairing empty keyspace
Key: CASSANDRA-15142
URL: https://issues.apache.org/jira/browse/CASSANDRA-15142
Project: Cassandra
Issue Type: Bug
Components: Consistency/Repair, Tool/nodetool
Reporter: Stefan Podkowinski
Assignee: Stefan Podkowinski
Running repairs on empty keyspaces will produce a rather confusing error in
trunk:
{noformat}
ERROR [Repair-Task:1] 2019-05-24 10:36:20,323 RepairRunnable.java:274 - Repair
014607d0-7dff-11e9-9256-158db058ccc5 failed:
java.lang.IllegalArgumentException: repair sessions cannot operate on multiple
keyspaces
▸ at com.google.common.base.Preconditions.checkArgument(Preconditions.java:135)
▸ at
org.apache.cassandra.service.ActiveRepairService$ParentRepairSession.<init>(ActiveRepairService.java:566)
▸ at
org.apache.cassandra.service.ActiveRepairService.registerParentRepairSession(ActiveRepairService.java:484)
▸ at
org.apache.cassandra.service.ActiveRepairService.prepareForRepair(ActiveRepairService.java:395)
▸ at
org.apache.cassandra.repair.RepairRunnable.runMayThrow(RepairRunnable.java:269)
▸ at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
▸ at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
▸ at java.util.concurrent.FutureTask.run(FutureTask.java:266)
▸ at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
▸ at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
▸ at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
▸ at java.lang.Thread.run(Thread.java:748)
{noformat}
Let's ignore empty keyspaces and return a success return status instead.
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