Use configuration-properties in clients HiveConf

[patduin]

I'd like to use the configuration-properties that I can set in the waggle-dance-server.yml in HiveConf that is used to create Thrift Clients.

Currently we use the properties only in the Handler (the server), it would be good if we can set properties and override settings used in the clients.
For instance see ThriftMetastoreClient it contains this code:
retries = HiveConf.getIntVar(conf, HiveConf.ConfVars.METASTORETHRIFTCONNECTIONRETRIES);
But there is currently no way to override this cause we create the HiveConf ourselves in CloseableThriftHiveMetastoreIfaceClientFactory. Thus that values is hardcoded to the Hive default 3.

Acceptance Criteria:

• Use theconfiguration-properties(see WaggleDanceConfiguration class) when creating the HiveConf for the clients.
• Documents it's use in the README (it seems to be a hidden feature now).

[courtsVII]

#90 Waggle Dance Glue PR adds this feature

[AnanaMJ]

Hey @patduin , would this look something like this? https://github.com/HotelsDotCom/waggle-dance/compare/issue-77?

[massdosage]

@patduin is this worth keeping open? Is the above PR from @AnanaMJ something we want to merge?

[patduin]

maybe keep this one as it might have a fix already. We just need to check backward compatiblity/implications. etc...