Description of problem: rdma transport type mount will hang if there is a delay in network to receive the request. the dump rpc request was rejected by server, so the client can't proceed. Version-Release number of selected component (if applicable): 3.6 How reproducible: Some times. Steps to Reproduce: 1. create rdma type volume 2. Start the volume 3.issue a mount command directly from cmd using glusterfs binary with proper argument. Actual results: mount will hang. Expected results: Mount should successes. Additional info:
REVIEW: http://review.gluster.org/8850 (rdma: mount hangs for rdma type transport.) posted (#1) for review on master by mohammed rafi kc (rkavunga)
REVIEW: http://review.gluster.org/8850 (rdma: mount hangs for rdma type transport.) posted (#2) for review on master by mohammed rafi kc (rkavunga)
REVIEW: http://review.gluster.org/8850 (rdma: mount hangs for rdma type transport.) posted (#3) for review on master by mohammed rafi kc (rkavunga)
REVIEW: http://review.gluster.org/8850 (rdma: mount hangs for rdma type transport.) posted (#4) for review on master by mohammed rafi kc (rkavunga)
REVIEW: http://review.gluster.org/8850 (rdma: mount hangs for rdma type transport.) posted (#5) for review on master by Humble Devassy Chirammal (humble.devassy)
COMMIT: http://review.gluster.org/8850 committed in master by Raghavendra G (rgowdapp) ------ commit 678e91718c41b29046df7b9a019e4e9f7550efcb Author: Mohammed Rafi KC <rkavunga> Date: Thu Sep 25 15:36:30 2014 +0530 rdma: mount hangs for rdma type transport. rdma transport type mount will hang if there is a delay in network to receive,we will set transport as connected if we get an event type RDMA_CM_EVENT_ESTABLISHED, we cannot assure whether client or server will get the event first, the only condition is that the side which sends the first request should wait for the event. If client gets the event first, then it sends DUMP request, in server side the request will reach, but it will reject the rpc request since it didn't get the RDMA_CM_EVENT_ESTABLISHED. So in server we will set the connected flag as soon as rdma_accept is called. Change-Id: Iac5845e3592666daa575c727822889779b5bd203 BUG: 1146492 Signed-off-by: Mohammed Rafi KC <rkavunga> Reviewed-on: http://review.gluster.org/8850 Tested-by: Gluster Build System <jenkins.com> Reviewed-by: Raghavendra G <rgowdapp> Tested-by: Raghavendra G <rgowdapp>
fixed from glusterfs-3.6.2 onwards.