Hi, I am trying to understand the shutdown process in Slider and was playing with the HBase Slider package.
I am able to deploy the HBase app without issues and do the start, stop, flex etc..no issues there. One thing I noticed is when the stop is issued, all the HBase components go away and the respective HBase components like Region server etc, logs does not show the graceful shutdown messages that is typically seen. While there is stop command in the hbase_service.py script- I am not seeing it being called.Does the Slider stop command simple requests the containers to be killed ? How can one achieve a graceful shutdown of the components ? For example, in a normal HBase Region server shutdown outside of Slider once can see messages like these: 2015-06-23 14:21:47,364 INFO [RpcServer.responder] ipc.RpcServer: RpcServer.responder: stopped 2015-06-23 14:21:47,364 INFO [RpcServer.responder] ipc.RpcServer: RpcServer.responder: stopping 2015-06-23 14:21:47,372 INFO [regionserver/ bdavm001.svl.ibm.com/9.30.252.1:16020] zookeeper.ZooKeeper: Session: 0x24e09011902002b closed 2015-06-23 14:21:47,372 INFO [main-EventThread] zookeeper.ClientCnxn: EventThread shut down 2015-06-23 14:21:47,372 INFO [regionserver/ bdavm001.svl.ibm.com/9.30.252.1:16020] regionserver.HRegionServer: stopping server bdavm001.svl.ibm.com,16020,1435013574085; zookeeper connection closed. 2015-06-23 14:21:47,372 INFO [regionserver/ bdavm001.svl.ibm.com/9.30.252.1:16020] regionserver.HRegionServer: regionserver/bdavm001.svl.ibm.com/9.30.252.1:16020 exiting 2015-06-23 14:21:47,372 INFO [Thread-5] regionserver.ShutdownHook: Starting fs shutdown hook thread. 2015-06-23 14:21:47,373 INFO [Thread-5] regionserver.ShutdownHook: Shutdown hook finished. Am I missing any settings ? Please share your thoughts/suggestions. Thanks, Rajesh
