kamilla1201 commented on a change in pull request #6037:
URL: https://github.com/apache/geode/pull/6037#discussion_r580657139
##########
File path:
geode-membership/src/main/java/org/apache/geode/distributed/internal/membership/gms/GMSMembership.java
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@@ -1231,23 +1197,16 @@ public void shutdownMessageReceived(ID id, String
reason) {
if (logger.isDebugEnabled()) {
logger.debug("Membership: recording shutdown status of {}", id);
}
- synchronized (this.shutdownMembers) {
- this.shutdownMembers.put(id, id);
- services.getHealthMonitor()
- .memberShutdown(id, reason);
- services.getJoinLeave().memberShutdown(id, reason);
- }
+ this.shutdownMembers.add(id);
+ services.getJoinLeave().memberShutdown(id, reason);
}
@Override
public Set<ID> getMembersNotShuttingDown() {
- latestViewReadLock.lock();
- try {
- return latestView.getMembers().stream().filter(id ->
!shutdownMembers.containsKey(id))
+ synchronized (shutdownMembers) {
Review comment:
Yes, as Bill said, `shutdownMembers` was a non-concurrent collection,
and the read access to it wasn't synched. Although `shutdownMembers` is a
`synchronizedSet` now, synchronization is still needed around `stream()`
operation.
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