added SOLR support

[olegkovalenko]

MOTIVATION: Launch SOLR on DSE.

PROPOSED CHANGE:

CLI changes:

• node CLI: add option --solr-enabled with possible values: true to launch SOLR on the node, otherwise false

  ./dse-mesos.sh node add 0 --cpu 0.1 --mem 1536 --solr-enabled true

• node CLI: include into output solr: <true | false> of node list
• cluster CLI: options for SOLR ports (catalina port, shart transport netty port)

Http server changes:

• handle solrEnabled for add/update HTTP API calls

Scheduler changes:

• reserve SOLR ports

Excecutor changes:

• whenever solrEnabled is true include flag -s when startting C* node
• configure ports for SOLR:
  • catalina port in catalina.properties
  • shart transport port in dse.yaml

Node changes:

• add serialization to/from JSON of attribute solrEnabled

Storage changes:

• File/Zk update migraiton to add false value for attribute solrEnabled
• C* storage added column node_solr_enabled (default: false)

RESULT: ability to launch DSE search nodes

[serejja]

lgtm

[olegkovalenko]

Thanks for review @serejja !

[dmitrypekar]

Merged. Thank you for update!

[olegkovalenko]

Thanks @dmitrypekar !