frinda commented on code in PR #10566:
URL: https://github.com/apache/rocketmq/pull/10566#discussion_r3541835393
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store/src/main/java/org/apache/rocketmq/store/ConsumeQueue.java:
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@@ -1271,7 +1279,13 @@ public void initializeWithOffset(long offset, long
minPhyOffset) {
// transientStorePool is null, only need set wrote position here
MappedFile mappedFile = mappedFileQueue.getLastMappedFile(offset *
ConsumeQueue.CQ_STORE_UNIT_SIZE, true);
- fillPreBlank(mappedFile, offset * ConsumeQueue.CQ_STORE_UNIT_SIZE);
+ if (mappedFile != null && mappedFile.hold()) {
+ try {
+ fillPreBlank(mappedFile, offset *
ConsumeQueue.CQ_STORE_UNIT_SIZE);
+ } finally {
+ mappedFile.release();
+ }
+ }
Review Comment:
org.apache.rocketmq.store.logfile.DefaultMappedFile#appendMessage(byte[],
int, int)
I think this place also needs to be protected via reference counting
(hold()/release()). Recently, I encountered an issue where the standby
server suddenly crashed during primary-standby synchronization.
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