jmark99 edited a comment on pull request #1817:
URL: https://github.com/apache/accumulo/pull/1817#issuecomment-736675131
I've been running one particular IT test while reviewing this PR:
```shell
mvn clean verify -Dtest=NoSuchTestExists
-Dit.test=org.apache.accumulo.test.ShellIT#insertDeleteScanTest
```
After each run I have been checking the failsafe directory for output.
Although I've seen runs without the exception on occasion, I'm still seeing it
in the output logs.
Another interesting thing of note is that when starting and stopping
accumulo, I'm seeing the following exception show up with the change:
```java
2020-12-01T11:40:18,104 [zookeeper.ClientCnxn] ERROR: Error while calling
watcher
java.lang.IllegalStateException: null
at
com.google.common.base.Preconditions.checkState(Preconditions.java:492)
~[guava-28.2-jre.jar:?]
at
org.apache.accumulo.fate.zookeeper.ZooCache.clear(ZooCache.java:484)
~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
at
org.apache.accumulo.fate.zookeeper.ZooCache$ZCacheWatcher.process(ZooCache.java:174)
~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
at
org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:535)
~[zookeeper-3.5.8.jar:3.5.8]
at
org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:510)
~[zookeeper-3.5.8.jar:3.5.8]
```
I've been re-running the IT test, but I'm still seeing the exception appear
the majority of the runs.
Now I'm trying to verify that I'm testing everything correctly :) I added a
debug statement to the ShellIT test just to verify that I was running the
correct build.
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