Minor Description
ExamplesIT does a couple of screwy things. It tries to share a single MAC instance, assuming, to make the test go faster. This has the downside of any test case that causes the MAC to get into a bad state to hose all of the other tests.
For example, on my personal jenkins instance, the tserver ran out of heap, and it hung all of the other tests.
There's also some larger issue happening where the test cases aren't actually exiting the process for each test which result in a bunch of the Ingest/Query processes that get started for the test to never get cleaned up
# jps -m 3460 Main org.apache.accumulo.examples.simple.dirlist.Ingest -i miniInstance -z localhost:21593 -u root -p testRootPassword1 --dirTable dirTable --indexTable indexTable --dataTable dataTable --vis A|B --chunkSize 10000 .... 3258 Main org.apache.accumulo.examples.simple.client.RowOperations -i miniInstance -z localhost:21593 -u root -p testRootPassword1 2413 Main org.apache.accumulo.master.Master 3496 Main org.apache.accumulo.examples.simple.mapreduce.TeraSortIngest --count 1000000 -nk 10 -xk 10 -nv 10 -xv 10 -t sorted -i miniInstance -z localhost:21593 -u root -p testRootPassword1 --splits 4 3397 Main org.apache.accumulo.examples.simple.isolation.InterferenceTest -i miniInstance -z localhost:21593 -u root -p testRootPassword1 -t itest2 --iterations 100000 2894 Main org.apache.accumulo.examples.simple.isolation.InterferenceTest -i miniInstance -z localhost:21593 -u root -p testRootPassword1 -t itest1 --iterations 100000 --isolated 2319 Main org.apache.accumulo.tserver.TabletServer 3291 Main org.apache.accumulo.tracer.TraceServer 2322 Main org.apache.accumulo.tserver.TabletServer 3598 Main org.apache.accumulo.server.util.Admin stopAll 3353 Main org.apache.accumulo.examples.simple.client.ReadWriteExample -i miniInstance -z localhost:21593 -u root -p testRootPassword1 --auths A,B --table test2 --createtable -c --debug 2416 Main org.apache.accumulo.gc.SimpleGarbageCollector 3571 Main org.apache.accumulo.examples.simple.helloworld.InsertWithBatchWriter -i miniInstance -z localhost:21593 -u root -p testRootPassword1 -t helloBatch
I'm not sure why the processes aren't getting cleaned up (no destroy in a finally when the test times out?), nor 100% sure why the stopAll appears to hang everything (timeouts not applied to After annotations?).
