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https://issues.apache.org/jira/browse/HDFS-16658?focusedWorklogId=795145&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-795145
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ASF GitHub Bot logged work on HDFS-16658:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Jul/22 06:51
Start Date: 26/Jul/22 06:51
Worklog Time Spent: 10m
Work Description: slfan1989 commented on PR #4559:
URL: https://github.com/apache/hadoop/pull/4559#issuecomment-1195078382
@ZanderXu Thank you for your contribution, pr looks good, but I want to know
if it can be solved using dynamic debug log?
I remember that hadoop provides a switch that can directly open the debug
log. This command can temporarily modify the log level.
```
hadoop daemonlog --setlevel <host:port> <name> <level>
```
If you directly modify the log level, will the log size be very large, after
all, this is a block-level log?
Issue Time Tracking
-------------------
Worklog Id: (was: 795145)
Time Spent: 50m (was: 40m)
> BlockManager should output some logs when logEveryBlock is true.
> ----------------------------------------------------------------
>
> Key: HDFS-16658
> URL: https://issues.apache.org/jira/browse/HDFS-16658
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> During locating some abnormal cases in our prod environment, I found that
> BlockManager does not out put some logs in `addStoredBlock` even though
> `logEveryBlock` is true.
> I feel that we need to change the log level from DEBUG to INFO.
> {code:java}
> // Some comments here
> private Block addStoredBlock(final BlockInfo block,
> final Block reportedBlock,
> DatanodeStorageInfo storageInfo,
> DatanodeDescriptor delNodeHint,
> boolean logEveryBlock)
> throws IOException {
> ....
> if (logEveryBlock) {
> blockLog.debug("BLOCK* addStoredBlock: {} is added to {} (size={})",
> node, storedBlock, storedBlock.getNumBytes());
> }
> ...
> }
> {code}
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