[bookkeeper] branch master updated: reduce unnecessary checkpoints (#3341)

[eolivelli]

This is an automated email from the ASF dual-hosted git repository.

eolivelli pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/bookkeeper.git


The following commit(s) were added to refs/heads/master by this push:
     new 6e268800c5 reduce unnecessary checkpoints (#3341)
6e268800c5 is described below

commit 6e268800c5d5d8f6c250202feed68fb38964251e
Author: LinChen <1572139...@qq.com>
AuthorDate: Mon Jun 20 15:01:47 2022 +0800

    reduce unnecessary checkpoints (#3341)
---
 .../bookkeeper/bookie/storage/ldb/SingleDirectoryDbLedgerStorage.java  | 3 +++
 1 file changed, 3 insertions(+)

diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/SingleDirectoryDbLedgerStorage.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/SingleDirectoryDbLedgerStorage.java
index 7aeea2bc6d..30516f82c6 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/SingleDirectoryDbLedgerStorage.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/SingleDirectoryDbLedgerStorage.java
@@ -707,6 +707,9 @@ public class SingleDirectoryDbLedgerStorage implements 
CompactableLedgerStorage
         // Only a single flush operation can happen at a time
         flushMutex.lock();
         try {
+            if (writeCache.isEmpty()) {
+                return;
+            }
             // Swap the write cache so that writes can continue to happen 
while the flush is
             // ongoing
             swapWriteCache();