kunal642 commented on a change in pull request #3166: [CARBONDATA-3332] Blocked
concurrent compaction and update/delete
URL: https://github.com/apache/carbondata/pull/3166#discussion_r269892680
##########
File path:
integration/spark2/src/main/scala/org/apache/carbondata/spark/rdd/CarbonDataRDDFactory.scala
##########
@@ -867,27 +868,34 @@ object CarbonDataRDDFactory {
val lock = CarbonLockFactory.getCarbonLockObj(
carbonTable.getAbsoluteTableIdentifier,
LockUsage.COMPACTION_LOCK)
-
- if (lock.lockWithRetries()) {
- LOGGER.info("Acquired the compaction lock.")
- try {
- startCompactionThreads(sqlContext,
- carbonLoadModel,
- storeLocation,
- compactionModel,
- lock,
- compactedSegments,
- operationContext
- )
- } catch {
- case e: Exception =>
- LOGGER.error(s"Exception in start compaction thread. ${
e.getMessage }")
- lock.unlock()
- throw e
+ val updateLock = CarbonLockFactory.getCarbonLockObj(carbonTable
+ .getAbsoluteTableIdentifier, LockUsage.UPDATE_LOCK)
+ try {
+ if (updateLock.lockWithRetries()) {
+ if (lock.lockWithRetries()) {
+ LOGGER.info("Acquired the compaction lock.")
+ startCompactionThreads(sqlContext,
+ carbonLoadModel,
+ storeLocation,
+ compactionModel,
+ lock,
+ compactedSegments,
+ operationContext
+ )
+ } else {
+ LOGGER.error("Not able to acquire the compaction lock for table
" +
+ s"${ carbonLoadModel.getDatabaseName }.${
carbonLoadModel.getTableName}")
+ }
+ } else {
+ throw new ConcurrentOperationException(carbonTable, "update",
"compaction")
}
- } else {
- LOGGER.error("Not able to acquire the compaction lock for table " +
- s"${ carbonLoadModel.getDatabaseName }.${
carbonLoadModel.getTableName}")
+ } catch {
+ case e: Exception =>
+ LOGGER.error(s"Exception in start compaction thread.", e)
+ lock.unlock()
+ throw e
+ } finally {
+ updateLock.unlock()
Review comment:
@qiuchenjian During load we are already taking this into consideration.
Check SegmentStatusManager.deleteLoadsAndUpdateMetadata which is called from
load flow.
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