Web UI comes up, but shows 0 drillbits available

[Jason Altekruse <al...@gmail.com>]

Hello Drillers,

I have been testing some bugs with bootstrap storage plugins, and so I have
been starting  a lot of Drillbits and cleaning out zookeper throughout the
day to test different cases that were reported as failing.

For those unaware, Drill comes with some storage plugin configurations
setup by default, these are loaded upon the first time starting Drill and
stored in zookeeper for persistence throughout the life of a cluster. These
files are only used for this first time setup, to change configuration
later we rely on the web interface, Rest API, or directly updating the
entries in zookeeper.

In some of my attempts to start Drill, I have seen a weird behavior that I
am afraid may have been introduced recently. Upon starting Drill [1] I have
seen a few cases where the logs indicate the drillbit has shut down
immediately after it comes up. Oddly enough, the web UI still comes up and
jps lists a process called Drillbit. On the Web UI it reports 0 available
Drillbits, but I cannot find any errors in the log.

Has any one else experienced this?

[1] bin/drillbit.sh start

>From the Web UI:
*Number of Drill Bits* 0 *Data Port Address* 172.30.1.75:31012 *User Port
Address* 172.30.1.75:31010 *Control Port Address* 172.30.1.75:31011 *Maximum
Direct Memory* 8,589,934,592


>From the log:
2015-05-07 16:38:52,515 [main] INFO  o.apache.drill.exec.server.Drillbit -
Drillbit environment: java.compiler=<NA>
2015-05-07 16:38:52,515 [main] INFO  o.apache.drill.exec.server.Drillbit -
Drillbit environment: os.name=Mac OS X
2015-05-07 16:38:52,515 [main] INFO  o.apache.drill.exec.server.Drillbit -
Drillbit environment: os.arch=x86_64
2015-05-07 16:38:52,515 [main] INFO  o.apache.drill.exec.server.Drillbit -
Drillbit environment: os.version=10.8.5
2015-05-07 16:38:52,515 [main] INFO  o.apache.drill.exec.server.Drillbit -
Drillbit environment: user.name=jaltekruse
2015-05-07 16:38:52,515 [main] INFO  o.apache.drill.exec.server.Drillbit -
Drillbit environment: user.home=/Users/jaltekruse
2015-05-07 16:38:52,515 [main] INFO  o.apache.drill.exec.server.Drillbit -
Drillbit environment:
user.dir=/Users/jaltekruse/incubator-drill/distribution/target/apache-drill-1.0.0-SNAPSHOT/apache-drill-1.0.0-
SNAPSHOT
2015-05-07 16:39:01,727 [main] INFO  o.a.d.exec.store.sys.PStoreRegistry -
Using the configured PStoreProvider class:
'org.apache.drill.exec.store.sys.zk.ZkPStoreProvider'.
2015-05-07 16:39:02,292 [main] INFO  o.apache.drill.exec.server.Drillbit -
Construction completed (6988 ms).
2015-05-07 16:39:06,600 [main] INFO  o.apache.drill.exec.server.Drillbit -
Shutdown completed (4217 ms).