yuw1 opened a new pull request, #6777:
URL: https://github.com/apache/hadoop/pull/6777
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### Description of PR
The current log format of printStatistics() is:
```
2024-04-27 21:15:05,429 [main] INFO namenode.FSEditLog
(FSEditLog.java:printStatistics(801)) - Number of transactions: 2 Total time
for transactions(ms): 2 Number of transactions batched in Syncs: 0 Number of
syncs: 3 SyncTimes(ms): 1 0
```
There are no separators between different keys, making it difficult to read.
The modified format is：
```
2024-04-27 21:15:05,429 [main] INFO namenode.FSEditLog
(FSEditLog.java:printStatistics(801)) - Number of transactions: 2, Total time
for transactions(ms): 2, Number of transactions batched in Syncs: 0, Number of
syncs: 3, SyncTimes(ms): 1 0
```
### How was this patch tested?
This patch only updates the log format and does not need to add new test
cases.
### For code changes:
- [x] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
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