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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/05/09 04:49:29 UTC

[GitHub] [spark] pan3793 opened a new pull request, #36485: [SPARK-39128][SQL][HIVE] Log cost time for Get FileStatus in HadoopTableReader

pan3793 opened a new pull request, #36485:
URL: https://github.com/apache/spark/pull/36485

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   Log cost time for `fs.globStatus(pathPattern)` in HadoopTableReader
   
   ### Why are the changes needed?
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     1. If you propose a new API, clarify the use case for a new API.
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   Sometimes `fs.globStatus(pathPattern)` costs unreasonable time, but there is not log for recording.
   <img width="871" alt="image" src="https://user-images.githubusercontent.com/26535726/167342533-5d4949fb-9675-4398-b15e-af6c603ac92e.png">
   <img width="1690" alt="image" src="https://user-images.githubusercontent.com/26535726/167342563-f19c1fff-23b6-4f89-ad00-71c9c4b7125b.png">
   
   
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   No.
   
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   Existing UT.


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[GitHub] [spark] srowen commented on a diff in pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
srowen commented on code in PR #36485:
URL: https://github.com/apache/spark/pull/36485#discussion_r868219599


##########
sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala:
##########
@@ -175,7 +175,8 @@ class HadoopTableReader(
             def updateExistPathSetByPathPattern(pathPatternStr: String): Unit = {
               val pathPattern = new Path(pathPatternStr)
               val fs = pathPattern.getFileSystem(hadoopConf)
-              val matches = fs.globStatus(pathPattern)
+              val (matches, timeCost) = Utils.timeTakenMs(fs.globStatus(pathPattern))
+              logInfo(s"Get FileStatus for path '$pathPatternStr' costs $timeCost ms.")

Review Comment:
   logDebug?



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[GitHub] [spark] srowen commented on a diff in pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
srowen commented on code in PR #36485:
URL: https://github.com/apache/spark/pull/36485#discussion_r868761212


##########
sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala:
##########
@@ -175,7 +175,8 @@ class HadoopTableReader(
             def updateExistPathSetByPathPattern(pathPatternStr: String): Unit = {
               val pathPattern = new Path(pathPatternStr)
               val fs = pathPattern.getFileSystem(hadoopConf)
-              val matches = fs.globStatus(pathPattern)
+              val (matches, timeCost) = Utils.timeTakenMs(fs.globStatus(pathPattern))
+              logInfo(s"Get FileStatus for path '$pathPatternStr' costs $timeCost ms.")

Review Comment:
   OK, I don't feel super strongly about it.



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[GitHub] [spark] pan3793 commented on a diff in pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
pan3793 commented on code in PR #36485:
URL: https://github.com/apache/spark/pull/36485#discussion_r868751869


##########
sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala:
##########
@@ -175,7 +175,8 @@ class HadoopTableReader(
             def updateExistPathSetByPathPattern(pathPatternStr: String): Unit = {
               val pathPattern = new Path(pathPatternStr)
               val fs = pathPattern.getFileSystem(hadoopConf)
-              val matches = fs.globStatus(pathPattern)
+              val (matches, timeCost) = Utils.timeTakenMs(fs.globStatus(pathPattern))
+              logInfo(s"Get FileStatus for path '$pathPatternStr' costs $timeCost ms.")

Review Comment:
   Personally, I prefer to use logInfo, because 
   
   1) the message is not noisy, `pathPatternStr` matches the table path, which means if the query access 10 tables, just generate 10 messages. 
   
   2) the PR itself aims to give more information when the user's job is stuck on listing files, the most important information is `pathPatternStr`, and I suppose most users will not turn on debug level log on production, then users have less opportunity to this message.



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[GitHub] [spark] AmplabJenkins commented on pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
AmplabJenkins commented on PR #36485:
URL: https://github.com/apache/spark/pull/36485#issuecomment-1120709655

   Can one of the admins verify this patch?


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[GitHub] [spark] github-actions[bot] commented on pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on PR #36485:
URL: https://github.com/apache/spark/pull/36485#issuecomment-1254360769

   We're closing this PR because it hasn't been updated in a while. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
   If you'd like to revive this PR, please reopen it and ask a committer to remove the Stale tag!


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[GitHub] [spark] github-actions[bot] closed pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
github-actions[bot] closed pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader
URL: https://github.com/apache/spark/pull/36485


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[GitHub] [spark] pan3793 commented on a diff in pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
pan3793 commented on code in PR #36485:
URL: https://github.com/apache/spark/pull/36485#discussion_r873808592


##########
sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala:
##########
@@ -175,7 +175,8 @@ class HadoopTableReader(
             def updateExistPathSetByPathPattern(pathPatternStr: String): Unit = {
               val pathPattern = new Path(pathPatternStr)
               val fs = pathPattern.getFileSystem(hadoopConf)
-              val matches = fs.globStatus(pathPattern)
+              val (matches, timeCost) = Utils.timeTakenMs(fs.globStatus(pathPattern))
+              logInfo(s"Get FileStatus for path '$pathPatternStr' costs $timeCost ms.")

Review Comment:
   @srowen Do you have any concerns before merging it?



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[GitHub] [spark] srowen commented on a diff in pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
srowen commented on code in PR #36485:
URL: https://github.com/apache/spark/pull/36485#discussion_r873811257


##########
sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala:
##########
@@ -175,7 +175,8 @@ class HadoopTableReader(
             def updateExistPathSetByPathPattern(pathPatternStr: String): Unit = {
               val pathPattern = new Path(pathPatternStr)
               val fs = pathPattern.getFileSystem(hadoopConf)
-              val matches = fs.globStatus(pathPattern)
+              val (matches, timeCost) = Utils.timeTakenMs(fs.globStatus(pathPattern))
+              logInfo(s"Get FileStatus for path '$pathPatternStr' costs $timeCost ms.")

Review Comment:
   I'm neutral, would not merge it but do not object to it



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[GitHub] [spark] pan3793 commented on a diff in pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
pan3793 commented on code in PR #36485:
URL: https://github.com/apache/spark/pull/36485#discussion_r873816933


##########
sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala:
##########
@@ -175,7 +175,8 @@ class HadoopTableReader(
             def updateExistPathSetByPathPattern(pathPatternStr: String): Unit = {
               val pathPattern = new Path(pathPatternStr)
               val fs = pathPattern.getFileSystem(hadoopConf)
-              val matches = fs.globStatus(pathPattern)
+              val (matches, timeCost) = Utils.timeTakenMs(fs.globStatus(pathPattern))
+              logInfo(s"Get FileStatus for path '$pathPatternStr' costs $timeCost ms.")

Review Comment:
   emm



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[GitHub] [spark] pan3793 commented on pull request #36485: [SPARK-39128][SQL][HIVE] Log cost time for getting FileStatus in HadoopTableReader

Posted by GitBox <gi...@apache.org>.
pan3793 commented on PR #36485:
URL: https://github.com/apache/spark/pull/36485#issuecomment-1127767757

   cc @yaooqinn would you please take a look if you have time?


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