[CX] start-sample-cluster.sh does not report error when 8095 port is already being used

1. Start a local cluster:

./samples/local/bin/start-sample-cluster.sh

java version "1.8.0_45"

Java(TM) SE Runtime Environment (build 1.8.0_45-b14)

Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

CLUSTERDIR=/opt/couchbase/cbas-install/samples/local

INSTALLDIR=/opt/couchbase/cbas-install

Waiting for cluster to start..done

See output in /opt/couchbase/cbas-install/samples/local/logs/

2. Issue curl command:

curl -s --data pretty=true --data format=CLEAN_JSON --data-urlencode statement@file.txt http://localhost:8095/analytics/service

Error received:

{

	"requestID": "79492951-d037-4717-b9cd-69b6cbc860f3",

	"signature": "*",

	"errors": [{ 

	"code": "1",

	"msg": " Asterix Cluster is in UNUSABLE state.\n One or more Node Controllers have left or haven't joined yet.\n"

	}],

	"status": "fatal",

	"metrics": {

		"elapsedTime": "60.008365743s",

		"executionTime": "60.007577309s",

		"resultCount": "0",

		"resultSize": "0"

	}

}

Error reported in cc.log:

java.net.BindException: Address already in use

        at sun.nio.ch.Net.bind0(Native Method)

        at sun.nio.ch.Net.bind(Net.java:437)

        at sun.nio.ch.Net.bind(Net.java:429)

        at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)

        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)

        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:67)

        at org.apache.hyracks.ipc.impl.IPCConnectionManager.<init>(IPCConnectionManager.java:72)

        at org.apache.hyracks.ipc.impl.IPCSystem.<init>(IPCSystem.java:44)

        at org.apache.hyracks.control.cc.ClusterControllerService.<init>(ClusterControllerService.java:169)

        at org.apache.hyracks.control.cc.CCDriver.main(CCDriver.java:39)

3. Result of jps:

jps

7233 NCService

7234 NCService

7310 Jps

4. netstat -anp | grep -i "8095"

tcp        0      0 :::8095                     :::*                        LISTEN      32736/java  

5.ps  -aef | grep -i 32736

root      7448  6179  0 11:50 pts/0    00:00:00 grep -i 32736

root     32736     1  0 Aug11 ?        00:07:26 /usr/java/jdk1.8.0_45//bin/java -Djava.rmi.server.hostname=localhost -classpath :/root/cbas-yingyi/etc:/root/cbas-yingyi/repo/* -Dapp.name=cbascc -Dapp.pid=32736 -Dapp.repo=/root/cbas-yingyi/repo -Dapp.home=/root/cbas-yingyi -Dbasedir=/root/cbas-yingyi org.apache.hyracks.control.cc.CCDriver -app-cc-main-class com.couchbase.analytics.bootstrap.CCApplicationEntryPoint -config-file /root/cbas-yingyi/samples/local/conf/cc.conf

6. Basically above process was using the port, killed the process and curl command worked fine.

7. Running the startup script should have thrown some kind of connection error.