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Dec 03, 2020; 7:04am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/GitHub-carbondata-QiangCai-opened-a-new-pull-request-4013-WIP-Remove-automatically-clean-data-tp103289p104138.html
ajantha-bhat commented on a change in pull request #4013:
URL:
https://github.com/apache/carbondata/pull/4013#discussion_r534771387##########
File path: integration/spark/src/main/scala/org/apache/carbondata/trash/DataTrashManager.scala
##########
@@ -0,0 +1,112 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *
http://www.apache.org/licenses/LICENSE-2.0+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.carbondata.trash
+
+import scala.collection.JavaConverters._
+
+import org.apache.carbondata.common.logging.LogServiceFactory
+import org.apache.carbondata.core.constants.CarbonCommonConstants
+import org.apache.carbondata.core.indexstore.PartitionSpec
+import org.apache.carbondata.core.locks.{CarbonLockUtil, ICarbonLock, LockUsage}
+import org.apache.carbondata.core.metadata.SegmentFileStore
+import org.apache.carbondata.core.metadata.schema.table.CarbonTable
+import org.apache.carbondata.core.statusmanager.SegmentStatusManager
+import org.apache.carbondata.core.util.{CarbonProperties, CleanFilesUtil, TrashUtil}
+
+/**
+ * This object will manage the following data.
+ * 1. .Trash folder
+ * 2. stale segments without metadata
+ * 3. expired segments (MARKED_FOR_DELETE, Compacted, In Progress)
+ */
+object DataTrashManager {
+ private val LOGGER = LogServiceFactory.getLogService(this.getClass.getCanonicalName)
+
+ /**
+ * clean garbage data
+ * 1. clean .Trash folder
+ * 2. clean stale segments without metadata
+ * 3. clean expired segments (MARKED_FOR_DELETE, Compacted, In Progress)
+ *
+ * @param carbonTable : CarbonTable Object
+ * @param partitionSpecs : Hive Partitions details
+ */
+ def cleanGarbageData(
+ carbonTable: CarbonTable,
+ force: Boolean = false,
+ partitionSpecs: Option[Seq[PartitionSpec]] = None): Unit = {
+ var carbonCleanFilesLock: ICarbonLock = null
+ val absoluteTableIdentifier = carbonTable.getAbsoluteTableIdentifier
+ try {
+ val errorMsg = "Clean files request is failed for " +
+ s"${ carbonTable.getQualifiedName }" +
+ ". Not able to acquire the clean files lock due to another clean files " +
+ "operation is running in the background."
+ carbonCleanFilesLock = CarbonLockUtil.getLockObject(absoluteTableIdentifier,
+ LockUsage.CLEAN_FILES_LOCK, errorMsg)
+ // step 1: clean trash folder
+ cleanTrashFolder(carbonTable, force)
Review comment:
`checkAndCleanTrashFolder`
As we dont clean always. Function name give a feeling that we are cleaning trash folder here
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