kowshik commented on a change in pull request #9110:
URL: https://github.com/apache/kafka/pull/9110#discussion_r463914087
##########
File path: core/src/main/scala/kafka/log/Log.scala
##########
@@ -2227,14 +2210,17 @@ class Log(@volatile private var _dir: File,
* @param segments The log segments to schedule for deletion
* @param asyncDelete Whether the segment files should be deleted
asynchronously
*/
- private def removeAndDeleteSegments(segments: Iterable[LogSegment],
asyncDelete: Boolean): Unit = {
+ private def removeAndDeleteSegments(segments: Iterable[LogSegment],
+ asyncDelete: Boolean,
+ reason: SegmentDeletionReason): Unit = {
if (segments.nonEmpty) {
lock synchronized {
// As most callers hold an iterator into the `segments` collection and
`removeAndDeleteSegment` mutates it by
// removing the deleted segment, we should force materialization of
the iterator here, so that results of the
// iteration remain valid and deterministic.
val toDelete = segments.toList
toDelete.foreach { segment =>
+ info(s"${reason.reasonString(this, segment)}")
Review comment:
If we passed in the deletion reason further into the
`deleteSegmentFiles` method, it seems we can print the reason string just once
for a batch of segments being deleted. And within the reason string, we can
provide the reason for deleting the batch:
https://github.com/confluentinc/ce-kafka/blob/master/core/src/main/scala/kafka/log/Log.scala#L2519
https://github.com/confluentinc/ce-kafka/blob/master/core/src/main/scala/kafka/log/Log.scala#L2526
ex: `info("Deleting segments due to $reason: ${segments.mkString(",")}"`
where `$reason` provides `due to retention time 1200000ms breach`.
The drawback is that sometimes we can not print segment-specific information
since the error message is at a batch level. But generally it may be that
segment-level deletion information could bloat our server logging, so it may be
better to batch the logging instead.
What are your thoughts?
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
