QiangCai commented on a change in pull request #3183: [CARBONDATA-3349] Show
sort_columns for each segment
URL: https://github.com/apache/carbondata/pull/3183#discussion_r279175423
##########
File path:
integration/spark-common/src/main/scala/org/apache/carbondata/api/CarbonStore.scala
##########
@@ -145,6 +152,208 @@ object CarbonStore {
}
}
+ def showSegments(
+ limit: Option[String],
+ carbonTable: CarbonTable,
+ hadoopConf: Configuration,
+ showHistory: Boolean): Seq[Row] = {
+ val metaFolder = CarbonTablePath.getMetadataPath(carbonTable.getTablePath)
+ val loadMetadataDetailsArray = if (showHistory) {
+ SegmentStatusManager.readLoadMetadata(metaFolder) ++
+ SegmentStatusManager.readLoadHistoryMetadata(metaFolder)
+ } else {
+ SegmentStatusManager.readLoadMetadata(metaFolder)
+ }
+
+ if (loadMetadataDetailsArray.nonEmpty) {
+ var loadMetadataDetailsSortedArray = loadMetadataDetailsArray.sortWith {
(l1, l2) =>
+ java.lang.Double.parseDouble(l1.getLoadName) >
java.lang.Double.parseDouble(l2.getLoadName)
+ }
+ if (!showHistory) {
+ loadMetadataDetailsSortedArray = loadMetadataDetailsSortedArray
+ .filter(_.getVisibility.equalsIgnoreCase("true"))
+ }
+ if (limit.isDefined) {
+ val limitLoads = limit.get
+ try {
+ val lim = Integer.parseInt(limitLoads)
+ loadMetadataDetailsSortedArray =
loadMetadataDetailsSortedArray.slice(0, lim)
+ } catch {
+ case _: NumberFormatException =>
+ CarbonException.analysisException("Entered limit is not a valid
Number")
+ }
+ }
+ val tableDataMap: TableDataMap =
+ DataMapStoreManager.getInstance.getDefaultDataMap(carbonTable)
+ val readCommitScope: ReadCommittedScope =
+ new TableStatusReadCommittedScope(
+ carbonTable.getAbsoluteTableIdentifier,
+
loadMetadataDetailsSortedArray.filter(_.getVisibility.equalsIgnoreCase("true")),
+ hadoopConf)
+ loadMetadataDetailsSortedArray
+ .map { load =>
+ val mergedTo =
+ if (load.getMergedLoadName != null) {
+ load.getMergedLoadName
+ } else {
+ "NA"
+ }
+
+ val startTime =
+ if (load.getLoadStartTime ==
CarbonCommonConstants.SEGMENT_LOAD_TIME_DEFAULT) {
+ "NA"
+ } else {
+ new java.sql.Timestamp(load.getLoadStartTime).toString
+ }
+
+ val endTime =
+ if (load.getLoadEndTime ==
CarbonCommonConstants.SEGMENT_LOAD_TIME_DEFAULT) {
+ "NA"
+ } else {
+ new java.sql.Timestamp(load.getLoadEndTime).toString
+ }
+
+ val (dataSize, indexSize) = if (load.getFileFormat ==
FileFormat.ROW_V1) {
+ // for streaming segment, we should get the actual size from the
index file
+ // since it is continuously inserting data
+ val segmentDir =
+ CarbonTablePath.getSegmentPath(carbonTable.getTablePath,
load.getLoadName)
+ val indexPath =
CarbonTablePath.getCarbonStreamIndexFilePath(segmentDir)
+ val indexFile = FileFactory.getCarbonFile(indexPath)
+ if (indexFile.exists()) {
+ val indices =
+ StreamSegment.readIndexFile(indexPath,
FileFactory.getFileType(indexPath))
+ (indices.asScala.map(_.getFile_size).sum, indexFile.getSize)
+ } else {
+ (-1L, -1L)
+ }
+ } else {
+ // for batch segment, we can get the data size from table status
file directly
+ (if (load.getDataSize == null) -1L else load.getDataSize.toLong,
+ if (load.getIndexSize == null) -1L else load.getIndexSize.toLong)
+ }
+
+ val (isSorted, sortColumns) =
+ getSortColumnsOfSegment(
+ load,
+ readCommitScope,
+ tableDataMap,
+ hadoopConf
+ )
+ if (showHistory) {
+ Row(
+ load.getLoadName,
+ load.getSegmentStatus.getMessage,
+ startTime,
+ endTime,
+ mergedTo,
+ load.getFileFormat.toString,
+ load.getVisibility,
+ Strings.formatSize(dataSize.toFloat),
+ Strings.formatSize(indexSize.toFloat),
+ isSorted,
+ sortColumns)
+ } else {
+ Row(
+ load.getLoadName,
+ load.getSegmentStatus.getMessage,
+ startTime,
+ endTime,
+ mergedTo,
+ load.getFileFormat.toString,
+ Strings.formatSize(dataSize.toFloat),
+ Strings.formatSize(indexSize.toFloat),
+ isSorted,
+ sortColumns)
+ }
+ }.toSeq
+ } else {
+ Seq.empty
+ }
+ }
+
+ private def getSortColumnsOfSegment(
+ load: LoadMetadataDetails,
+ readCommitScope: ReadCommittedScope,
+ tableDataMap: TableDataMap,
+ hadoopConf: Configuration
+ ): (String, String) = {
+ var isSorted = ""
+ var sortColumns = ""
+ if (load.getFileFormat == FileFormat.ROW_V1) {
+ isSorted = "false"
+ } else if (load.getVisibility.equalsIgnoreCase("true")) {
+ val segment = new Segment(load.getLoadName(), load.getSegmentFile(),
readCommitScope)
+ val dataMapFactory =
tableDataMap.getDataMapFactory().asInstanceOf[BlockletDataMapFactory]
+ val indexIdents =
dataMapFactory.getTableBlockIndexUniqueIdentifiers(segment)
+ val indexIterator = indexIdents.iterator()
+ if (indexIterator.hasNext) {
+ val indexIdent = indexIterator.next()
+ var indexHeader: IndexHeader = null
+ var indexContent: Array[Byte] = null
+ val indexFilePath = indexIdent.getIndexFilePath +
CarbonCommonConstants.FILE_SEPARATOR +
+ indexIdent.getIndexFileName
+ if (indexIdent.getMergeIndexFileName != null) {
+ val indexFileStore = new SegmentIndexFileStore(hadoopConf)
+ try {
+ indexFileStore.readMergeFile(indexFilePath)
+ } catch {
+ case ex: IOException =>
+ LOGGER.error(ex)
+ }
+ val iterator = indexFileStore.getCarbonIndexMap.entrySet().iterator()
+ if (iterator.hasNext) {
+ indexContent = iterator.next().getValue
+ }
+ }
+ val indexReader = new CarbonIndexFileReader()
+ try {
+ if (indexContent == null) {
+ indexReader.openThriftReader(indexFilePath)
+ } else {
+ indexReader.openThriftReader(indexContent)
+ }
+ // get the index header
+ indexHeader = indexReader.readIndexHeader()
+ } catch {
+ case ex: IOException =>
+ LOGGER.error(ex)
+ } finally {
+ indexReader.closeThriftReader()
+ }
+ if (indexHeader != null && indexHeader.isSetIs_sort) {
+ if (indexHeader.is_sort) {
Review comment:
default is an empty string for not set is_sort cases.
when it set is_sort, it should be false.
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