DateFormat.getDateTimeInstance() is very expensive, we can cache it to improve
performance
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Key: ZOOKEEPER-1015
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1015
Project: ZooKeeper
Issue Type: Bug
Components: server
Affects Versions: 3.3.2
Reporter: Xiaoming Shi
In the file
{noformat}
./zookeeper-3.3.2/src/java/main/org/apache/zookeeper/server/PurgeTxnLog.java
line:103
{noformat}
DateFormat.getDateTimeInstance() is called many times in the for loop. We can
cache the result and improve the performance
This is similar to the Apache bug
https://issues.apache.org/bugzilla/show_bug.cgi?id=48778
Similar code can be found:
{noformat}
./zookeeper-3.3.2/src/java/main/org/apache/zookeeper/server/TraceFormatter.java
./zookeeper-3.3.2/src/java/main/org/apache/zookeeper/server/LogFormatter.java
{noformat}
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