tree 4cfb374bfaff0ce03aa671fe4ab8ef2f7f7fafaa
parent 09f958c1b1b70ba3731797ec16cc3bc52f251fd8
author Abdullah Alamoudi <bamousaa@gmail.com> 1503282374 -0700
committer abdullah alamoudi <bamousaa@gmail.com> 1503344565 -0700

[ASTERIXDB-2049][ING] Fix hang in Start Feed

- user model changes: no
- storage format changes: no
- interface changes: no

details:
- The hang is caused by one runtime finishing and unregistering
  before another runtime registers. When that happens, the number
  of registered runtimes never reaches the total number of runtimes
  and so the start feed statement doesn't complete.
- To avoid the situation described above, we use different counters
  for registration and deregistration. Since deregistration count
  is now kept in another variable, the registrations will either
  reach the expected count or a failure will happen and both
  cases completes the start feed request.

Change-Id: I0019f5634009bf924fb37acc78eb796842eef492
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1953
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>