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[QingchuanHao <haoqingchuan.28@xxxxxxx>]

"Endpoint does not support RPC method add_shard_cluster" means the rpc
server can not handle such a method as add_shard_cluster.  Please make
sure if the trove should support add_shard_cluster.

** Changed in: oslo.messaging
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1528267

Title:
  There is an error "NoSuchMethod: Endpoint does not support RPC method
  add_shard_cluster" when add a shard to mongodb cluster

Status in OpenStack Identity (keystone):
  Invalid
Status in oslo.messaging:
  Invalid

Bug description:
  When i add a shard to mongodb cluster. The trove-taskmanager has an error.
  The error message is as follow.
  2015-12-21 23:44:33.225 16857 ERROR oslo_messaging.rpc.dispatcher [-] Exception during message handling: Endpoint does not support RPC method add_shard_cluster
  2015-12-21 23:44:33.225 16857 ERROR oslo_messaging.rpc.dispatcher Traceback (most recent call last):
  2015-12-21 23:44:33.225 16857 ERROR oslo_messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 142, in _dispatch_and_reply
  2015-12-21 23:44:33.225 16857 ERROR oslo_messaging.rpc.dispatcher     executor_callback))
  2015-12-21 23:44:33.225 16857 ERROR oslo_messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 193, in _dispatch
  2015-12-21 23:44:33.225 16857 ERROR oslo_messaging.rpc.dispatcher     raise NoSuchMethod(method)
  2015-12-21 23:44:33.225 16857 ERROR oslo_messaging.rpc.dispatcher NoSuchMethod: Endpoint does not support RPC method add_shard_cluster

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