Add status command to cloud local

[jahhulbert-ccri]

So you can run bin/cloud-local.sh status I wonder if that is really hard

[vpipkt]

echo "zookeeper status"
$ZOOKEEPER_HOME/bin/zkServer.sh status
echo "hadoop status"
hdfs dfsadmin -report
echo "yarn status"
yarn node -list
echo "accumulo ping tserver"
accumulo shell -u root -p secret -e ping

If things are not running this can be messy...

Kafka has some pretty powerful metrics stuff... see monitoring section of https://kafka.apache.org/08/ops.html

jconsole:
Is controller active on broker "kafka.controller":name="ActiveControllerCount",type="KafkaController" only one broker in the cluster should have 1

[vpipkt]

Get status of overall hadoop file system using

hdfs fsck /

Tail of output:

 Number of data-nodes:      1
 Number of racks:       1
FSCK ended at Wed Mar 02 08:15:17 EST 2016 in 3 milliseconds


The filesystem under path '/' is HEALTHY

You can also call yarn application -list to see a (probably empty?) list of applications, but this will confirm the resourcemanager is up.

[vpipkt]

More spam...

To see if a zookeeper node is up call:

echo ruok | nc localhost 2181

it should print back imok if it's ok. Nothing if not.

[djr7m]

"jps -l" could provide a cheap way to check for the services running before querying the service directly.

[jahhulbert-ccri]

this would also be good for helping with "reconfigure" or other commands...check to see if it's running first.