Post is stopped due to error and the following messages are seen in event_log:
Error 2015-09-10 15:35:14.819837 59912 2595571552 Poster: Stale file handle Writecommit read sque header file (posting from SID1 queue queue_name to SID 2)[module que]
Error 2015-09-10 15:35:14.842387 59931 1833232224 Poster: 15013 - Error for que_readrelease() que_SYNCERR: Could not fsync() file (posting from SID1, queue queue_name, to SID2) [module opo]
Error 2015-09-10 15:35:14.934288 59931 1833232224 Poster stopped: Internal error encountered; cannot continue (posting from SID1, queue queue_name, to SID2)
Info 2015-09-10 15:35:15.903980 59909 337889120 Poster exited with code=1, pid = 59912 (posting from SID1, queue t1gnrck2, to SID2)
Info 2015-09-10 15:35:15.959975 59909 337889120 Poster exited with code=1, pid = 59931 (posting from SID1, queue queue_name, to SID2)
Resolve the disk issues which include disk full, network issues, among others with device holding Shareplex variable directory. Then restart Post. If restarting Post do not help, then contact Support to see if there is any queue corruption or if any Shareplex file in rim or state directory is missing or corrupted so that the queues can be salvaged to the maximum extent possible. In worst case scenario, the replication may need to be re-established which will require database downtime and resync of target.