private void handleClosedMembers(Map<InternalDistributedMember, RegionCommitList> msgMap) {
      for (InternalDistributedMember member : getCacheClosedMembers()) {
        RegionCommitList rcl = msgMap.get(member);

        for (RegionCommit region : rcl) {
          markMemberOffline(member, region);
        }
      }
    }
Mark peers as offline that returned a cache closed exception
geode-core/src/main/java/org/apache/geode/internal/cache/TXCommitMessage.java