StevenLuMT commented on code in PR #3342:
URL: https://github.com/apache/bookkeeper/pull/3342#discussion_r903198790
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bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/SingleDirectoryDbLedgerStorage.java:
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@@ -793,6 +843,13 @@ public void checkpoint(Checkpoint checkpoint) throws
IOException {
}
}
+ private void cloneFlushedCache2LastFlushCache(WriteCache
writeCacheBeingFlushed, WriteCache writeCacheLastFlushed) {
+ writeCacheLastFlushed.clear();
+ writeCacheBeingFlushed.forEach((ledgerId, entryId, data) -> {
Review Comment:
> this looks like an expensive operation. Is there any reason to not swap
two caches like in `swapWriteCache()`?
good suggestion,I optimized this function
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