kumarvishal09 commented on a change in pull request #3177:
[CARBONDATA-3337][CARBONDATA-3306] Distributed index server
URL: https://github.com/apache/carbondata/pull/3177#discussion_r280713215
##########
File path:
core/src/main/java/org/apache/carbondata/core/datamap/DataMapUtil.java
##########
@@ -91,43 +94,132 @@ public static DataMapJob getDataMapJob(Configuration
configuration) throws IOExc
* @param carbonTable
* @throws IOException
*/
- public static void executeDataMapJobForClearingDataMaps(CarbonTable
carbonTable)
- throws IOException {
- String dataMapJobClassName =
"org.apache.carbondata.spark.rdd.SparkDataMapJob";
+ private static void executeDataMapJobForClearingSegmentDataMaps(DataMapJob
dataMapJob,
+ CarbonTable carbonTable) throws IOException {
+ SegmentStatusManager.ValidAndInvalidSegmentsInfo
validAndInvalidSegmentsInfo =
+ getValidAndInvalidSegments(carbonTable,
FileFactory.getConfiguration());
+ List<String> invalidSegment = new ArrayList<>();
+ for (Segment segment : validAndInvalidSegmentsInfo.getInvalidSegments()) {
+ invalidSegment.add(segment.getSegmentNo());
+ }
+ DistributableDataMapFormat dataMapFormat = new
DistributableDataMapFormat(carbonTable, null,
+ validAndInvalidSegmentsInfo.getValidSegments(), invalidSegment, null,
true,
+ DataMapLevel.FG);
+ dataMapJob.execute(dataMapFormat);
+ }
+
+ public static void clearEmbeddedDataMaps(CarbonTable carbonTable) throws
IOException {
+ String dataMapJobClassName =
"org.apache.carbondata.indexserver.EmbeddedDataMapJob";
DataMapJob dataMapJob = (DataMapJob) createDataMapJob(dataMapJobClassName);
if (dataMapJob == null) {
return;
}
- String className =
"org.apache.carbondata.core.datamap.DistributableDataMapFormat";
- SegmentStatusManager.ValidAndInvalidSegmentsInfo
validAndInvalidSegmentsInfo =
- getValidAndInvalidSegments(carbonTable,
FileFactory.getConfiguration());
- List<Segment> validSegments =
validAndInvalidSegmentsInfo.getValidSegments();
- List<Segment> invalidSegments =
validAndInvalidSegmentsInfo.getInvalidSegments();
- DataMapExprWrapper dataMapExprWrapper = null;
- if (DataMapStoreManager.getInstance().getAllDataMap(carbonTable).size() >
0) {
- DataMapChooser dataMapChooser = new DataMapChooser(carbonTable);
- dataMapExprWrapper = dataMapChooser.getAllDataMapsForClear(carbonTable);
- } else {
+ executeDataMapJobForClearingSegmentDataMaps(dataMapJob, carbonTable);
+ }
+
+ public static void clearDistributedDataMaps(CarbonTable carbonTable)
+ throws IOException {
+ String dataMapJobClassName =
"org.apache.carbondata.indexserver.DistributedClearCacheJob";
+ DataMapJob dataMapJob = (DataMapJob) createDataMapJob(dataMapJobClassName);
+ if (dataMapJob == null) {
return;
}
- DistributableDataMapFormat dataMapFormat =
- createDataMapJob(carbonTable, dataMapExprWrapper, validSegments,
invalidSegments, null,
- className, true);
- dataMapJob.execute(dataMapFormat, null);
+ executeDataMapJobForClearingSegmentDataMaps(dataMapJob, carbonTable);
}
- private static DistributableDataMapFormat createDataMapJob(CarbonTable
carbonTable,
- DataMapExprWrapper dataMapExprWrapper, List<Segment> validsegments,
- List<Segment> invalidSegments, List<PartitionSpec> partitionsToPrune,
String clsName,
- boolean isJobToClearDataMaps) {
- try {
- Constructor<?> cons =
Class.forName(clsName).getDeclaredConstructors()[0];
- return (DistributableDataMapFormat) cons
- .newInstance(carbonTable, dataMapExprWrapper, validsegments,
invalidSegments,
- partitionsToPrune, isJobToClearDataMaps);
- } catch (Exception e) {
- throw new RuntimeException(e);
+ public static DataMapJob getEmbeddedJob() {
+ String className = "org.apache.carbondata.indexserver.EmbeddedDataMapJob";
+ DataMapJob dataMapJob = (DataMapJob)
DataMapUtil.createDataMapJob(className);
+ if (dataMapJob == null) {
+ throw new ExceptionInInitializerError("Unable to create
EmbeddedDataMapJob");
+ }
+ return dataMapJob;
+ }
+
+ public static List<ExtendedBlocklet> executeDataMapJob(CarbonTable
carbonTable,
+ FilterResolverIntf resolver, Configuration configuration, DataMapJob
dataMapJob,
+ List<PartitionSpec> partitionsToPrune, List<Segment> validSegments,
+ List<Segment> invalidSegments, DataMapLevel level) throws IOException {
+ return executeDataMapJob(carbonTable, resolver, configuration,
dataMapJob,partitionsToPrune,
+ validSegments, invalidSegments, level, false);
+ }
+
+ /**
+ * Prune the segments from the already pruned blocklets.
+ * @param segments
+ * @param prunedBlocklets
+ */
+ public static void pruneSegments(List<Segment> segments,
+ List<ExtendedBlocklet> prunedBlocklets) {
+ List<Segment> toBeRemovedSegments = new ArrayList<>();
+ for (Segment segment : segments) {
+ boolean found = false;
+ // Clear the old pruned index files if any present
+ segment.getFilteredIndexShardNames().clear();
+ // Check the segment exist in any of the pruned blocklets.
+ for (ExtendedBlocklet blocklet : prunedBlocklets) {
+ if (blocklet.getSegment().toString().equals(segment.toString())) {
+ found = true;
+ // Set the pruned index file to the segment
+ // for further pruning.
+ String shardName =
CarbonTablePath.getShardName(blocklet.getFilePath());
+ segment.setFilteredIndexShardName(shardName);
+ }
+ }
+ // Add to remove segments list if not present in pruned blocklets.
+ if (!found) {
+ toBeRemovedSegments.add(segment);
+ }
}
+ // Remove all segments which are already pruned from pruned blocklets
+ segments.removeAll(toBeRemovedSegments);
+ }
+
+ static List<ExtendedBlocklet> pruneDataMaps(CarbonTable table,
+ FilterResolverIntf filterResolverIntf, List<Segment> segmentsToLoad,
+ List<PartitionSpec> partitions, List<ExtendedBlocklet> blocklets) throws
IOException {
+ List<ExtendedBlocklet> cgDataMaps = pruneDataMaps(table,
filterResolverIntf, segmentsToLoad,
+ partitions, blocklets,
+ DataMapLevel.CG);
+ return pruneDataMaps(table, filterResolverIntf, segmentsToLoad,
+ partitions, cgDataMaps,
+ DataMapLevel.FG);
+ }
+
+ static List<ExtendedBlocklet> pruneDataMaps(CarbonTable table,
+ FilterResolverIntf filterResolverIntf, List<Segment> segmentsToLoad,
+ List<PartitionSpec> partitions, List<ExtendedBlocklet> blocklets,
DataMapLevel dataMapLevel)
+ throws IOException {
+ DataMapExprWrapper dataMapExprWrapper =
+ new DataMapChooser(table).chooseDataMap(dataMapLevel,
filterResolverIntf);
+ if (dataMapExprWrapper != null) {
+ List<ExtendedBlocklet> extendedBlocklets = new ArrayList<>();
+ // Prune segments from already pruned blocklets
+ for (DataMapDistributableWrapper wrapper : dataMapExprWrapper
+ .toDistributable(segmentsToLoad)) {
+ TableDataMap defaultDataMap = DataMapStoreManager.getInstance()
+ .getDataMap(table, wrapper.getDistributable().getDataMapSchema());
+ List<DataMap> dataMaps =
defaultDataMap.getTableDataMaps(wrapper.getDistributable());
+ List<ExtendedBlocklet> prunnedBlocklet = new ArrayList<>();
+ if (table.isTransactionalTable()) {
+ prunnedBlocklet.addAll(defaultDataMap.prune(dataMaps,
wrapper.getDistributable(),
+ dataMapExprWrapper.getFilterResolverIntf(wrapper.getUniqueId()),
partitions));
+ } else {
+ prunnedBlocklet
+ .addAll(defaultDataMap.prune(segmentsToLoad, filterResolverIntf,
partitions));
+ }
+ for (ExtendedBlocklet blocklet : prunnedBlocklet) {
+ blocklet.getDetailInfo();
+ blocklet.setDataMapUniqueId(wrapper.getUniqueId());
+ }
+ extendedBlocklets.addAll(prunnedBlocklet);
+ }
+ return dataMapExprWrapper.pruneBlocklets(extendedBlocklets);
+ }
+ for (ExtendedBlocklet blocklet : blocklets) {
+ blocklet.getDetailInfo();
+ }
Review comment:
@kunal642 Please add comment
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