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Posted to issues@carbondata.apache.org by GitBox <gi...@apache.org> on 2020/02/15 03:42:21 UTC
[GitHub] [carbondata] marchpure opened a new pull request #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
marchpure opened a new pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622
### Why is this PR needed?
Now, Cleaning temp index files in the mergeindex flow takes a lot of time, sometimes it will take 2~3 mins, which should be optimized
### What changes were proposed in this PR?
Clean temp index files in parallel in merge index flow
### Does this PR introduce any user interface change?
- No
### Is any new testcase added?
- No
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[GitHub] [carbondata] ajantha-bhat commented on a change in pull request
#3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index
flow
Posted by GitBox <gi...@apache.org>.
ajantha-bhat commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r379984005
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -191,6 +193,27 @@ object CarbonMergeFilesRDD {
mergeIndexSize
}
+ /**
+ * delete the file with retry
+ */
+ def deleteFileWithRetry(filePath: String, _retryTimes: Integer): Unit = {
+ var retryTimes = _retryTimes
+ while (!deleteFile(filePath) && retryTimes > 0) {
Review comment:
why not use `deleteAllCarbonFilesOfDir` ?
Because line 175: you have to loop again to delete the directories. May be slow on s3
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[GitHub] [carbondata] jackylk commented on a change in pull request #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
jackylk commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r380416336
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -157,21 +157,23 @@ object CarbonMergeFilesRDD {
if (carbonTable.isHivePartitionTable && !StringUtils.isEmpty(tempFolderPath)) {
// remove all tmp folder of index files
val startDelete = System.currentTimeMillis()
- val numThreads = Math.min(Math.max(partitionInfo.size(), 1), 10)
- val executorService = Executors.newFixedThreadPool(numThreads)
- val carbonSessionInfo = ThreadLocalSessionInfo.getCarbonSessionInfo
+ // get all files in all folder of index files
+ val allTmpFiles = partitionInfo
+ .asScala
+ .map { partitionPath =>
+ FileFactory.getCarbonFile(partitionPath + "/" + tempFolderPath)
+ .listFiles().toList
+ }.toList.flatten.map(_.getAbsolutePath)
+ // delete files in parallel
+ sparkSession.sparkContext.parallelize(allTmpFiles).map {
+ deleteFileWithRetry(_, 3)
+ }.collect()
+ // delete dirs
partitionInfo
.asScala
.map { partitionPath =>
- executorService.submit(new Runnable {
- override def run(): Unit = {
- ThreadLocalSessionInfo.setCarbonSessionInfo(carbonSessionInfo)
- FileFactory.deleteAllCarbonFilesOfDir(
- FileFactory.getCarbonFile(partitionPath + "/" + tempFolderPath))
- }
- })
+ FileFactory.deleteFile(partitionPath + "/" + tempFolderPath)
Review comment:
This can be implemented in RDD also
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[GitHub] [carbondata] CarbonDataQA1 commented on issue #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
CarbonDataQA1 commented on issue #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#issuecomment-586551417
Build Success with Spark 2.4.4, Please check CI http://121.244.95.60:12545/job/ApacheCarbon_PR_Builder_2.4.4/299/
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[GitHub] [carbondata] marchpure commented on issue #3622: [CARBONDATA-3702]
Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
marchpure commented on issue #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#issuecomment-586568016
retest this please
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[GitHub] [carbondata] Indhumathi27 commented on a change in pull request
#3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index
flow
Posted by GitBox <gi...@apache.org>.
Indhumathi27 commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r382525176
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -157,21 +157,23 @@ object CarbonMergeFilesRDD {
if (carbonTable.isHivePartitionTable && !StringUtils.isEmpty(tempFolderPath)) {
// remove all tmp folder of index files
val startDelete = System.currentTimeMillis()
- val numThreads = Math.min(Math.max(partitionInfo.size(), 1), 10)
- val executorService = Executors.newFixedThreadPool(numThreads)
- val carbonSessionInfo = ThreadLocalSessionInfo.getCarbonSessionInfo
+ // get all files in all folder of index files
+ val allTmpFiles = partitionInfo
+ .asScala
+ .map { partitionPath =>
+ FileFactory.getCarbonFile(partitionPath + "/" + tempFolderPath)
Review comment:
Can use CarbonCommonConstants.FILE_SEPARATOR instead of "/"
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[GitHub] [carbondata] jackylk commented on a change in pull request #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
jackylk commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r380416741
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -191,6 +193,27 @@ object CarbonMergeFilesRDD {
mergeIndexSize
}
+ /**
+ * delete the file with retry
+ */
+ def deleteFileWithRetry(filePath: String, _retryTimes: Integer): Unit = {
Review comment:
make it private
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[GitHub] [carbondata] CarbonDataQA1 commented on issue #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
CarbonDataQA1 commented on issue #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#issuecomment-586575134
Build Success with Spark 2.3.4, Please check CI http://121.244.95.60:12545/job/ApacheCarbonPRBuilder2.3/2009/
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[GitHub] [carbondata] jackylk commented on a change in pull request #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
jackylk commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r380416668
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -157,21 +157,23 @@ object CarbonMergeFilesRDD {
if (carbonTable.isHivePartitionTable && !StringUtils.isEmpty(tempFolderPath)) {
// remove all tmp folder of index files
val startDelete = System.currentTimeMillis()
- val numThreads = Math.min(Math.max(partitionInfo.size(), 1), 10)
- val executorService = Executors.newFixedThreadPool(numThreads)
- val carbonSessionInfo = ThreadLocalSessionInfo.getCarbonSessionInfo
+ // get all files in all folder of index files
+ val allTmpFiles = partitionInfo
+ .asScala
+ .map { partitionPath =>
+ FileFactory.getCarbonFile(partitionPath + "/" + tempFolderPath)
+ .listFiles().toList
+ }.toList.flatten.map(_.getAbsolutePath)
+ // delete files in parallel
+ sparkSession.sparkContext.parallelize(allTmpFiles).map {
Review comment:
suggest to add a threshold check, use RDD only when `allTmpFiles.length` exceed threshold
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[GitHub] [carbondata] CarbonDataQA1 commented on issue #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
CarbonDataQA1 commented on issue #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#issuecomment-586569602
Build Success with Spark 2.4.4, Please check CI http://121.244.95.60:12545/job/ApacheCarbon_PR_Builder_2.4.4/306/
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[GitHub] [carbondata] jackylk commented on a change in pull request #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
jackylk commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r380415731
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -157,21 +157,23 @@ object CarbonMergeFilesRDD {
if (carbonTable.isHivePartitionTable && !StringUtils.isEmpty(tempFolderPath)) {
// remove all tmp folder of index files
val startDelete = System.currentTimeMillis()
- val numThreads = Math.min(Math.max(partitionInfo.size(), 1), 10)
- val executorService = Executors.newFixedThreadPool(numThreads)
- val carbonSessionInfo = ThreadLocalSessionInfo.getCarbonSessionInfo
+ // get all files in all folder of index files
+ val allTmpFiles = partitionInfo
+ .asScala
+ .map { partitionPath =>
Review comment:
maybe you can use flatMap here
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[GitHub] [carbondata] jackylk commented on a change in pull request #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
jackylk commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r380416759
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -191,6 +193,27 @@ object CarbonMergeFilesRDD {
mergeIndexSize
}
+ /**
+ * delete the file with retry
+ */
+ def deleteFileWithRetry(filePath: String, _retryTimes: Integer): Unit = {
+ var retryTimes = _retryTimes
+ while (!deleteFile(filePath) && retryTimes > 0) {
+ retryTimes -= 1
+ }
+ }
+
+ /**
+ * delete the file
+ */
+ def deleteFile(filePath: String): Boolean = {
Review comment:
make it private
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[GitHub] [carbondata] CarbonDataQA1 commented on issue #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
CarbonDataQA1 commented on issue #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#issuecomment-586554100
Build Failed with Spark 2.3.4, Please check CI http://121.244.95.60:12545/job/ApacheCarbonPRBuilder2.3/2003/
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[GitHub] [carbondata] Indhumathi27 commented on a change in pull request
#3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index
flow
Posted by GitBox <gi...@apache.org>.
Indhumathi27 commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r382525290
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -157,21 +157,23 @@ object CarbonMergeFilesRDD {
if (carbonTable.isHivePartitionTable && !StringUtils.isEmpty(tempFolderPath)) {
// remove all tmp folder of index files
val startDelete = System.currentTimeMillis()
- val numThreads = Math.min(Math.max(partitionInfo.size(), 1), 10)
- val executorService = Executors.newFixedThreadPool(numThreads)
- val carbonSessionInfo = ThreadLocalSessionInfo.getCarbonSessionInfo
+ // get all files in all folder of index files
+ val allTmpFiles = partitionInfo
+ .asScala
+ .map { partitionPath =>
+ FileFactory.getCarbonFile(partitionPath + "/" + tempFolderPath)
+ .listFiles().toList
+ }.toList.flatten.map(_.getAbsolutePath)
+ // delete files in parallel
+ sparkSession.sparkContext.parallelize(allTmpFiles).map {
+ deleteFileWithRetry(_, 3)
+ }.collect()
+ // delete dirs
partitionInfo
.asScala
.map { partitionPath =>
- executorService.submit(new Runnable {
- override def run(): Unit = {
- ThreadLocalSessionInfo.setCarbonSessionInfo(carbonSessionInfo)
- FileFactory.deleteAllCarbonFilesOfDir(
- FileFactory.getCarbonFile(partitionPath + "/" + tempFolderPath))
- }
- })
+ FileFactory.deleteFile(partitionPath + "/" + tempFolderPath)
Review comment:
Can use CarbonCommonConstants.FILE_SEPARATOR instead of "/"
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[GitHub] [carbondata] jackylk commented on a change in pull request #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
jackylk commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r380416855
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -191,6 +193,27 @@ object CarbonMergeFilesRDD {
mergeIndexSize
}
+ /**
+ * delete the file with retry
+ */
+ def deleteFileWithRetry(filePath: String, _retryTimes: Integer): Unit = {
+ var retryTimes = _retryTimes
+ while (!deleteFile(filePath) && retryTimes > 0) {
+ retryTimes -= 1
+ }
+ }
+
+ /**
+ * delete the file
+ */
+ def deleteFile(filePath: String): Boolean = {
+ val success = FileFactory.deleteFile(filePath)
+ if (!success && FileFactory.isFileExist(filePath)) {
Review comment:
only `if (!success)` is not enough?
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[GitHub] [carbondata] jackylk commented on a change in pull request #3622:
[CARBONDATA-3702] Clean temp index files in parallel in merge index flow
Posted by GitBox <gi...@apache.org>.
jackylk commented on a change in pull request #3622: [CARBONDATA-3702] Clean temp index files in parallel in merge index flow
URL: https://github.com/apache/carbondata/pull/3622#discussion_r380416336
##########
File path: integration/spark-common/src/main/scala/org/apache/spark/rdd/CarbonMergeFilesRDD.scala
##########
@@ -157,21 +157,23 @@ object CarbonMergeFilesRDD {
if (carbonTable.isHivePartitionTable && !StringUtils.isEmpty(tempFolderPath)) {
// remove all tmp folder of index files
val startDelete = System.currentTimeMillis()
- val numThreads = Math.min(Math.max(partitionInfo.size(), 1), 10)
- val executorService = Executors.newFixedThreadPool(numThreads)
- val carbonSessionInfo = ThreadLocalSessionInfo.getCarbonSessionInfo
+ // get all files in all folder of index files
+ val allTmpFiles = partitionInfo
+ .asScala
+ .map { partitionPath =>
+ FileFactory.getCarbonFile(partitionPath + "/" + tempFolderPath)
+ .listFiles().toList
+ }.toList.flatten.map(_.getAbsolutePath)
+ // delete files in parallel
+ sparkSession.sparkContext.parallelize(allTmpFiles).map {
+ deleteFileWithRetry(_, 3)
+ }.collect()
+ // delete dirs
partitionInfo
.asScala
.map { partitionPath =>
- executorService.submit(new Runnable {
- override def run(): Unit = {
- ThreadLocalSessionInfo.setCarbonSessionInfo(carbonSessionInfo)
- FileFactory.deleteAllCarbonFilesOfDir(
- FileFactory.getCarbonFile(partitionPath + "/" + tempFolderPath))
- }
- })
+ FileFactory.deleteFile(partitionPath + "/" + tempFolderPath)
Review comment:
This can be implemented in RDD also, if exceed the threshold
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