RongtongJin commented on a change in pull request #723: Concurrent risk in
brokerLiveTable
URL: https://github.com/apache/rocketmq/pull/723#discussion_r396185799
##########
File path:
namesrv/src/main/java/org/apache/rocketmq/namesrv/routeinfo/RouteInfoManager.java
##########
@@ -422,9 +422,18 @@ public void scanNotActiveBroker() {
long last = next.getValue().getLastUpdateTimestamp();
if ((last + BROKER_CHANNEL_EXPIRED_TIME) <
System.currentTimeMillis()) {
RemotingUtil.closeChannel(next.getValue().getChannel());
- it.remove();
- log.warn("The broker channel expired, {} {}ms", next.getKey(),
BROKER_CHANNEL_EXPIRED_TIME);
- this.onChannelDestroy(next.getKey(),
next.getValue().getChannel());
+ try {
Review comment:
Why not write like this
```java
try {
this.lock.writeLock().lockInterruptibly();
it.remove();
log.warn("The broker channel expired, {} {}ms",
next.getKey(), BROKER_CHANNEL_EXPIRED_TIME);
this.onChannelDestroy(next.getKey(),
next.getValue().getChannel());
} catch (Exception e) {
log.error("Delete Not Active Broker Exception", e);
} finally {
this.lock.writeLock().unlock();
}
```
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