http://git-wip-us.apache.org/repos/asf/hadoop/blob/10663b78/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowScanner.java ---------------------------------------------------------------------- diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowScanner.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowScanner.java deleted file mode 100644 index b533624..0000000 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowScanner.java +++ /dev/null @@ -1,723 +0,0 @@ -/** - * 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.hadoop.yarn.server.timelineservice.storage.flow; - -import java.io.Closeable; -import java.io.IOException; -import java.util.ArrayList; -import java.util.HashSet; -import java.util.List; -import java.util.Set; -import java.util.SortedSet; -import java.util.TreeSet; - -import org.apache.hadoop.conf.Configuration; -import org.apache.hadoop.hbase.Cell; -import org.apache.hadoop.hbase.CellUtil; -import org.apache.hadoop.hbase.HRegionInfo; -import org.apache.hadoop.hbase.KeyValue; -import org.apache.hadoop.hbase.Tag; -import org.apache.hadoop.hbase.client.Scan; -import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment; -import org.apache.hadoop.hbase.regionserver.InternalScanner; -import org.apache.hadoop.hbase.regionserver.Region; -import org.apache.hadoop.hbase.regionserver.RegionScanner; -import org.apache.hadoop.hbase.regionserver.ScannerContext; -import org.apache.hadoop.hbase.util.Bytes; -import org.apache.hadoop.hbase.util.Bytes.ByteArrayComparator; -import org.apache.hadoop.yarn.conf.YarnConfiguration; -import org.apache.hadoop.yarn.server.timelineservice.storage.common.GenericConverter; -import org.apache.hadoop.yarn.server.timelineservice.storage.common.HBaseTimelineServerUtils; -import org.apache.hadoop.yarn.server.timelineservice.storage.common.NumericValueConverter; -import org.apache.hadoop.yarn.server.timelineservice.storage.common.Separator; -import org.apache.hadoop.yarn.server.timelineservice.storage.common.TimestampGenerator; -import org.apache.hadoop.yarn.server.timelineservice.storage.common.ValueConverter; - -import com.google.common.annotations.VisibleForTesting; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -/** - * Invoked via the coprocessor when a Get or a Scan is issued for flow run - * table. Looks through the list of cells per row, checks their tags and does - * operation on those cells as per the cell tags. Transforms reads of the stored - * metrics into calculated sums for each column Also, finds the min and max for - * start and end times in a flow run. - */ -class FlowScanner implements RegionScanner, Closeable { - - private static final Logger LOG = - LoggerFactory.getLogger(FlowScanner.class); - - /** - * use a special application id to represent the flow id this is needed since - * TimestampGenerator parses the app id to generate a cell timestamp. - */ - private static final String FLOW_APP_ID = "application_00000000000_0000"; - - private final Region region; - private final InternalScanner flowRunScanner; - private final int batchSize; - private final long appFinalValueRetentionThreshold; - private RegionScanner regionScanner; - private boolean hasMore; - private byte[] currentRow; - private List<Cell> availableCells = new ArrayList<>(); - private int currentIndex; - private FlowScannerOperation action = FlowScannerOperation.READ; - - FlowScanner(RegionCoprocessorEnvironment env, InternalScanner internalScanner, - FlowScannerOperation action) { - this(env, null, internalScanner, action); - } - - FlowScanner(RegionCoprocessorEnvironment env, Scan incomingScan, - InternalScanner internalScanner, FlowScannerOperation action) { - this.batchSize = incomingScan == null ? -1 : incomingScan.getBatch(); - // TODO initialize other scan attributes like Scan#maxResultSize - this.flowRunScanner = internalScanner; - if (internalScanner instanceof RegionScanner) { - this.regionScanner = (RegionScanner) internalScanner; - } - this.action = action; - if (env == null) { - this.appFinalValueRetentionThreshold = - YarnConfiguration.DEFAULT_APP_FINAL_VALUE_RETENTION_THRESHOLD; - this.region = null; - } else { - this.region = env.getRegion(); - Configuration hbaseConf = env.getConfiguration(); - this.appFinalValueRetentionThreshold = hbaseConf.getLong( - YarnConfiguration.APP_FINAL_VALUE_RETENTION_THRESHOLD, - YarnConfiguration.DEFAULT_APP_FINAL_VALUE_RETENTION_THRESHOLD); - } - if (LOG.isDebugEnabled()) { - LOG.debug(" batch size=" + batchSize); - } - } - - - /* - * (non-Javadoc) - * - * @see org.apache.hadoop.hbase.regionserver.RegionScanner#getRegionInfo() - */ - @Override - public HRegionInfo getRegionInfo() { - return new HRegionInfo(region.getRegionInfo()); - } - - @Override - public boolean nextRaw(List<Cell> cells) throws IOException { - return nextRaw(cells, ScannerContext.newBuilder().build()); - } - - @Override - public boolean nextRaw(List<Cell> cells, ScannerContext scannerContext) - throws IOException { - return nextInternal(cells, scannerContext); - } - - @Override - public boolean next(List<Cell> cells) throws IOException { - return next(cells, ScannerContext.newBuilder().build()); - } - - @Override - public boolean next(List<Cell> cells, ScannerContext scannerContext) - throws IOException { - return nextInternal(cells, scannerContext); - } - - /** - * Get value converter associated with a column or a column prefix. If nothing - * matches, generic converter is returned. - * @param colQualifierBytes - * @return value converter implementation. - */ - private static ValueConverter getValueConverter(byte[] colQualifierBytes) { - // Iterate over all the column prefixes for flow run table and get the - // appropriate converter for the column qualifier passed if prefix matches. - for (FlowRunColumnPrefix colPrefix : FlowRunColumnPrefix.values()) { - byte[] colPrefixBytes = colPrefix.getColumnPrefixBytes(""); - if (Bytes.compareTo(colPrefixBytes, 0, colPrefixBytes.length, - colQualifierBytes, 0, colPrefixBytes.length) == 0) { - return colPrefix.getValueConverter(); - } - } - // Iterate over all the columns for flow run table and get the - // appropriate converter for the column qualifier passed if match occurs. - for (FlowRunColumn column : FlowRunColumn.values()) { - if (Bytes.compareTo( - column.getColumnQualifierBytes(), colQualifierBytes) == 0) { - return column.getValueConverter(); - } - } - // Return generic converter if nothing matches. - return GenericConverter.getInstance(); - } - - /** - * This method loops through the cells in a given row of the - * {@link FlowRunTable}. It looks at the tags of each cell to figure out how - * to process the contents. It then calculates the sum or min or max for each - * column or returns the cell as is. - * - * @param cells - * @param scannerContext - * @return true if next row is available for the scanner, false otherwise - * @throws IOException - */ - private boolean nextInternal(List<Cell> cells, ScannerContext scannerContext) - throws IOException { - Cell cell = null; - startNext(); - // Loop through all the cells in this row - // For min/max/metrics we do need to scan the entire set of cells to get the - // right one - // But with flush/compaction, the number of cells being scanned will go down - // cells are grouped per column qualifier then sorted by cell timestamp - // (latest to oldest) per column qualifier - // So all cells in one qualifier come one after the other before we see the - // next column qualifier - ByteArrayComparator comp = new ByteArrayComparator(); - byte[] previousColumnQualifier = Separator.EMPTY_BYTES; - AggregationOperation currentAggOp = null; - SortedSet<Cell> currentColumnCells = new TreeSet<>(KeyValue.COMPARATOR); - Set<String> alreadySeenAggDim = new HashSet<>(); - int addedCnt = 0; - long currentTimestamp = System.currentTimeMillis(); - ValueConverter converter = null; - int limit = batchSize; - - while (limit <= 0 || addedCnt < limit) { - cell = peekAtNextCell(scannerContext); - if (cell == null) { - break; - } - byte[] currentColumnQualifier = CellUtil.cloneQualifier(cell); - if (previousColumnQualifier == null) { - // first time in loop - previousColumnQualifier = currentColumnQualifier; - } - - converter = getValueConverter(currentColumnQualifier); - if (comp.compare(previousColumnQualifier, currentColumnQualifier) != 0) { - addedCnt += emitCells(cells, currentColumnCells, currentAggOp, - converter, currentTimestamp); - resetState(currentColumnCells, alreadySeenAggDim); - previousColumnQualifier = currentColumnQualifier; - currentAggOp = getCurrentAggOp(cell); - converter = getValueConverter(currentColumnQualifier); - } - collectCells(currentColumnCells, currentAggOp, cell, alreadySeenAggDim, - converter, scannerContext); - nextCell(scannerContext); - } - if ((!currentColumnCells.isEmpty()) && ((limit <= 0 || addedCnt < limit))) { - addedCnt += emitCells(cells, currentColumnCells, currentAggOp, converter, - currentTimestamp); - if (LOG.isDebugEnabled()) { - if (addedCnt > 0) { - LOG.debug("emitted cells. " + addedCnt + " for " + this.action - + " rowKey=" - + FlowRunRowKey.parseRowKey(CellUtil.cloneRow(cells.get(0)))); - } else { - LOG.debug("emitted no cells for " + this.action); - } - } - } - return hasMore(); - } - - private AggregationOperation getCurrentAggOp(Cell cell) { - List<Tag> tags = HBaseTimelineServerUtils.convertCellAsTagList(cell); - // We assume that all the operations for a particular column are the same - return HBaseTimelineServerUtils.getAggregationOperationFromTagsList(tags); - } - - /** - * resets the parameters to an initialized state for next loop iteration. - */ - private void resetState(SortedSet<Cell> currentColumnCells, - Set<String> alreadySeenAggDim) { - currentColumnCells.clear(); - alreadySeenAggDim.clear(); - } - - private void collectCells(SortedSet<Cell> currentColumnCells, - AggregationOperation currentAggOp, Cell cell, - Set<String> alreadySeenAggDim, ValueConverter converter, - ScannerContext scannerContext) throws IOException { - - if (currentAggOp == null) { - // not a min/max/metric cell, so just return it as is - currentColumnCells.add(cell); - return; - } - - switch (currentAggOp) { - case GLOBAL_MIN: - if (currentColumnCells.size() == 0) { - currentColumnCells.add(cell); - } else { - Cell currentMinCell = currentColumnCells.first(); - Cell newMinCell = compareCellValues(currentMinCell, cell, currentAggOp, - (NumericValueConverter) converter); - if (!currentMinCell.equals(newMinCell)) { - currentColumnCells.remove(currentMinCell); - currentColumnCells.add(newMinCell); - } - } - break; - case GLOBAL_MAX: - if (currentColumnCells.size() == 0) { - currentColumnCells.add(cell); - } else { - Cell currentMaxCell = currentColumnCells.first(); - Cell newMaxCell = compareCellValues(currentMaxCell, cell, currentAggOp, - (NumericValueConverter) converter); - if (!currentMaxCell.equals(newMaxCell)) { - currentColumnCells.remove(currentMaxCell); - currentColumnCells.add(newMaxCell); - } - } - break; - case SUM: - case SUM_FINAL: - if (LOG.isTraceEnabled()) { - LOG.trace("In collect cells " - + " FlowSannerOperation=" - + this.action - + " currentAggOp=" - + currentAggOp - + " cell qualifier=" - + Bytes.toString(CellUtil.cloneQualifier(cell)) - + " cell value= " - + converter.decodeValue(CellUtil.cloneValue(cell)) - + " timestamp=" + cell.getTimestamp()); - } - - // only if this app has not been seen yet, add to current column cells - List<Tag> tags = HBaseTimelineServerUtils.convertCellAsTagList(cell); - String aggDim = HBaseTimelineServerUtils - .getAggregationCompactionDimension(tags); - if (!alreadySeenAggDim.contains(aggDim)) { - // if this agg dimension has already been seen, - // since they show up in sorted order - // we drop the rest which are older - // in other words, this cell is older than previously seen cells - // for that agg dim - // but when this agg dim is not seen, - // consider this cell in our working set - currentColumnCells.add(cell); - alreadySeenAggDim.add(aggDim); - } - break; - default: - break; - } // end of switch case - } - - /* - * Processes the cells in input param currentColumnCells and populates - * List<Cell> cells as the output based on the input AggregationOperation - * parameter. - */ - private int emitCells(List<Cell> cells, SortedSet<Cell> currentColumnCells, - AggregationOperation currentAggOp, ValueConverter converter, - long currentTimestamp) throws IOException { - if ((currentColumnCells == null) || (currentColumnCells.size() == 0)) { - return 0; - } - if (currentAggOp == null) { - cells.addAll(currentColumnCells); - return currentColumnCells.size(); - } - if (LOG.isTraceEnabled()) { - LOG.trace("In emitCells " + this.action + " currentColumnCells size= " - + currentColumnCells.size() + " currentAggOp" + currentAggOp); - } - - switch (currentAggOp) { - case GLOBAL_MIN: - case GLOBAL_MAX: - cells.addAll(currentColumnCells); - return currentColumnCells.size(); - case SUM: - case SUM_FINAL: - switch (action) { - case FLUSH: - case MINOR_COMPACTION: - cells.addAll(currentColumnCells); - return currentColumnCells.size(); - case READ: - Cell sumCell = processSummation(currentColumnCells, - (NumericValueConverter) converter); - cells.add(sumCell); - return 1; - case MAJOR_COMPACTION: - List<Cell> finalCells = processSummationMajorCompaction( - currentColumnCells, (NumericValueConverter) converter, - currentTimestamp); - cells.addAll(finalCells); - return finalCells.size(); - default: - cells.addAll(currentColumnCells); - return currentColumnCells.size(); - } - default: - cells.addAll(currentColumnCells); - return currentColumnCells.size(); - } - } - - /* - * Returns a cell whose value is the sum of all cell values in the input set. - * The new cell created has the timestamp of the most recent metric cell. The - * sum of a metric for a flow run is the summation at the point of the last - * metric update in that flow till that time. - */ - private Cell processSummation(SortedSet<Cell> currentColumnCells, - NumericValueConverter converter) throws IOException { - Number sum = 0; - Number currentValue = 0; - long ts = 0L; - long mostCurrentTimestamp = 0L; - Cell mostRecentCell = null; - for (Cell cell : currentColumnCells) { - currentValue = (Number) converter.decodeValue(CellUtil.cloneValue(cell)); - ts = cell.getTimestamp(); - if (mostCurrentTimestamp < ts) { - mostCurrentTimestamp = ts; - mostRecentCell = cell; - } - sum = converter.add(sum, currentValue); - } - byte[] sumBytes = converter.encodeValue(sum); - Cell sumCell = - HBaseTimelineServerUtils.createNewCell(mostRecentCell, sumBytes); - return sumCell; - } - - - /** - * Returns a list of cells that contains - * - * A) the latest cells for applications that haven't finished yet - * B) summation - * for the flow, based on applications that have completed and are older than - * a certain time - * - * The new cell created has the timestamp of the most recent metric cell. The - * sum of a metric for a flow run is the summation at the point of the last - * metric update in that flow till that time. - */ - @VisibleForTesting - List<Cell> processSummationMajorCompaction( - SortedSet<Cell> currentColumnCells, NumericValueConverter converter, - long currentTimestamp) - throws IOException { - Number sum = 0; - Number currentValue = 0; - long ts = 0L; - boolean summationDone = false; - List<Cell> finalCells = new ArrayList<Cell>(); - if (currentColumnCells == null) { - return finalCells; - } - - if (LOG.isDebugEnabled()) { - LOG.debug("In processSummationMajorCompaction," - + " will drop cells older than " + currentTimestamp - + " CurrentColumnCells size=" + currentColumnCells.size()); - } - - for (Cell cell : currentColumnCells) { - AggregationOperation cellAggOp = getCurrentAggOp(cell); - // if this is the existing flow sum cell - List<Tag> tags = HBaseTimelineServerUtils.convertCellAsTagList(cell); - String appId = HBaseTimelineServerUtils - .getAggregationCompactionDimension(tags); - if (appId == FLOW_APP_ID) { - sum = converter.add(sum, currentValue); - summationDone = true; - if (LOG.isTraceEnabled()) { - LOG.trace("reading flow app id sum=" + sum); - } - } else { - currentValue = (Number) converter.decodeValue(CellUtil - .cloneValue(cell)); - // read the timestamp truncated by the generator - ts = TimestampGenerator.getTruncatedTimestamp(cell.getTimestamp()); - if ((cellAggOp == AggregationOperation.SUM_FINAL) - && ((ts + this.appFinalValueRetentionThreshold) - < currentTimestamp)) { - sum = converter.add(sum, currentValue); - summationDone = true; - if (LOG.isTraceEnabled()) { - LOG.trace("MAJOR COMPACTION loop sum= " + sum - + " discarding now: " + " qualifier=" - + Bytes.toString(CellUtil.cloneQualifier(cell)) + " value=" - + converter.decodeValue(CellUtil.cloneValue(cell)) - + " timestamp=" + cell.getTimestamp() + " " + this.action); - } - } else { - // not a final value but it's the latest cell for this app - // so include this cell in the list of cells to write back - finalCells.add(cell); - } - } - } - if (summationDone) { - Cell anyCell = currentColumnCells.first(); - List<Tag> tags = new ArrayList<Tag>(); - Tag t = HBaseTimelineServerUtils.createTag( - AggregationOperation.SUM_FINAL.getTagType(), - Bytes.toBytes(FLOW_APP_ID)); - tags.add(t); - t = HBaseTimelineServerUtils.createTag( - AggregationCompactionDimension.APPLICATION_ID.getTagType(), - Bytes.toBytes(FLOW_APP_ID)); - tags.add(t); - byte[] tagByteArray = - HBaseTimelineServerUtils.convertTagListToByteArray(tags); - Cell sumCell = HBaseTimelineServerUtils.createNewCell( - CellUtil.cloneRow(anyCell), - CellUtil.cloneFamily(anyCell), - CellUtil.cloneQualifier(anyCell), - TimestampGenerator.getSupplementedTimestamp( - System.currentTimeMillis(), FLOW_APP_ID), - converter.encodeValue(sum), tagByteArray); - finalCells.add(sumCell); - if (LOG.isTraceEnabled()) { - LOG.trace("MAJOR COMPACTION final sum= " + sum + " for " - + Bytes.toString(CellUtil.cloneQualifier(sumCell)) - + " " + this.action); - } - LOG.info("After major compaction for qualifier=" - + Bytes.toString(CellUtil.cloneQualifier(sumCell)) - + " with currentColumnCells.size=" - + currentColumnCells.size() - + " returning finalCells.size=" + finalCells.size() - + " with sum=" + sum.longValue() - + " with cell timestamp " + sumCell.getTimestamp()); - } else { - String qualifier = ""; - LOG.info("After major compaction for qualifier=" + qualifier - + " with currentColumnCells.size=" - + currentColumnCells.size() - + " returning finalCells.size=" + finalCells.size() - + " with zero sum=" - + sum.longValue()); - } - return finalCells; - } - - /** - * Determines which cell is to be returned based on the values in each cell - * and the comparison operation MIN or MAX. - * - * @param previouslyChosenCell - * @param currentCell - * @param currentAggOp - * @return the cell which is the min (or max) cell - * @throws IOException - */ - private Cell compareCellValues(Cell previouslyChosenCell, Cell currentCell, - AggregationOperation currentAggOp, NumericValueConverter converter) - throws IOException { - if (previouslyChosenCell == null) { - return currentCell; - } - try { - Number previouslyChosenCellValue = (Number)converter.decodeValue( - CellUtil.cloneValue(previouslyChosenCell)); - Number currentCellValue = (Number) converter.decodeValue(CellUtil - .cloneValue(currentCell)); - switch (currentAggOp) { - case GLOBAL_MIN: - if (converter.compare( - currentCellValue, previouslyChosenCellValue) < 0) { - // new value is minimum, hence return this cell - return currentCell; - } else { - // previously chosen value is miniumum, hence return previous min cell - return previouslyChosenCell; - } - case GLOBAL_MAX: - if (converter.compare( - currentCellValue, previouslyChosenCellValue) > 0) { - // new value is max, hence return this cell - return currentCell; - } else { - // previously chosen value is max, hence return previous max cell - return previouslyChosenCell; - } - default: - return currentCell; - } - } catch (IllegalArgumentException iae) { - LOG.error("caught iae during conversion to long ", iae); - return currentCell; - } - } - - @Override - public void close() throws IOException { - if (flowRunScanner != null) { - flowRunScanner.close(); - } else { - LOG.warn("scanner close called but scanner is null"); - } - } - - /** - * Called to signal the start of the next() call by the scanner. - */ - public void startNext() { - currentRow = null; - } - - /** - * Returns whether or not the underlying scanner has more rows. - */ - public boolean hasMore() { - return currentIndex < availableCells.size() ? true : hasMore; - } - - /** - * Returns the next available cell for the current row and advances the - * pointer to the next cell. This method can be called multiple times in a row - * to advance through all the available cells. - * - * @param scannerContext - * context information for the batch of cells under consideration - * @return the next available cell or null if no more cells are available for - * the current row - * @throws IOException - */ - public Cell nextCell(ScannerContext scannerContext) throws IOException { - Cell cell = peekAtNextCell(scannerContext); - if (cell != null) { - currentIndex++; - } - return cell; - } - - /** - * Returns the next available cell for the current row, without advancing the - * pointer. Calling this method multiple times in a row will continue to - * return the same cell. - * - * @param scannerContext - * context information for the batch of cells under consideration - * @return the next available cell or null if no more cells are available for - * the current row - * @throws IOException if any problem is encountered while grabbing the next - * cell. - */ - public Cell peekAtNextCell(ScannerContext scannerContext) throws IOException { - if (currentIndex >= availableCells.size()) { - // done with current batch - availableCells.clear(); - currentIndex = 0; - hasMore = flowRunScanner.next(availableCells, scannerContext); - } - Cell cell = null; - if (currentIndex < availableCells.size()) { - cell = availableCells.get(currentIndex); - if (currentRow == null) { - currentRow = CellUtil.cloneRow(cell); - } else if (!CellUtil.matchingRow(cell, currentRow)) { - // moved on to the next row - // don't use the current cell - // also signal no more cells for this row - return null; - } - } - return cell; - } - - /* - * (non-Javadoc) - * - * @see org.apache.hadoop.hbase.regionserver.RegionScanner#getMaxResultSize() - */ - @Override - public long getMaxResultSize() { - if (regionScanner == null) { - throw new IllegalStateException( - "RegionScanner.isFilterDone() called when the flow " - + "scanner's scanner is not a RegionScanner"); - } - return regionScanner.getMaxResultSize(); - } - - /* - * (non-Javadoc) - * - * @see org.apache.hadoop.hbase.regionserver.RegionScanner#getMvccReadPoint() - */ - @Override - public long getMvccReadPoint() { - if (regionScanner == null) { - throw new IllegalStateException( - "RegionScanner.isFilterDone() called when the flow " - + "scanner's internal scanner is not a RegionScanner"); - } - return regionScanner.getMvccReadPoint(); - } - - /* - * (non-Javadoc) - * - * @see org.apache.hadoop.hbase.regionserver.RegionScanner#isFilterDone() - */ - @Override - public boolean isFilterDone() throws IOException { - if (regionScanner == null) { - throw new IllegalStateException( - "RegionScanner.isFilterDone() called when the flow " - + "scanner's internal scanner is not a RegionScanner"); - } - return regionScanner.isFilterDone(); - - } - - /* - * (non-Javadoc) - * - * @see org.apache.hadoop.hbase.regionserver.RegionScanner#reseek(byte[]) - */ - @Override - public boolean reseek(byte[] bytes) throws IOException { - if (regionScanner == null) { - throw new IllegalStateException( - "RegionScanner.reseek() called when the flow " - + "scanner's internal scanner is not a RegionScanner"); - } - return regionScanner.reseek(bytes); - } - - @Override - public int getBatch() { - return batchSize; - } -}
http://git-wip-us.apache.org/repos/asf/hadoop/blob/10663b78/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowScannerOperation.java ---------------------------------------------------------------------- diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowScannerOperation.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowScannerOperation.java deleted file mode 100644 index 73c666f..0000000 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowScannerOperation.java +++ /dev/null @@ -1,46 +0,0 @@ -/** - * 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.hadoop.yarn.server.timelineservice.storage.flow; - - -/** - * Identifies the scanner operation on the {@link FlowRunTable}. - */ -public enum FlowScannerOperation { - - /** - * If the scanner is opened for reading - * during preGet or preScan. - */ - READ, - - /** - * If the scanner is opened during preFlush. - */ - FLUSH, - - /** - * If the scanner is opened during minor Compaction. - */ - MINOR_COMPACTION, - - /** - * If the scanner is opened during major Compaction. - */ - MAJOR_COMPACTION -} http://git-wip-us.apache.org/repos/asf/hadoop/blob/10663b78/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/package-info.java ---------------------------------------------------------------------- diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/package-info.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/package-info.java deleted file mode 100644 index 04963f3..0000000 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/package-info.java +++ /dev/null @@ -1,29 +0,0 @@ -/* - * 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.hadoop.yarn.server.timelineservice.storage.flow - * contains classes related to implementation for flow related tables, viz. flow - * run table and flow activity table. - */ -@InterfaceAudience.Private -@InterfaceStability.Unstable -package org.apache.hadoop.yarn.server.timelineservice.storage.flow; - -import org.apache.hadoop.classification.InterfaceAudience; -import org.apache.hadoop.classification.InterfaceStability; http://git-wip-us.apache.org/repos/asf/hadoop/blob/10663b78/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/package-info.java ---------------------------------------------------------------------- diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/package-info.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/package-info.java deleted file mode 100644 index e78db2a..0000000 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/hadoop-yarn-server-timelineservice-hbase-server-2/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/package-info.java +++ /dev/null @@ -1,28 +0,0 @@ -/* - * 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.hadoop.yarn.server.timelineservice.storage contains - * classes which define and implement reading and writing to backend storage. - */ -@InterfaceAudience.Private -@InterfaceStability.Unstable -package org.apache.hadoop.yarn.server.timelineservice.storage; - -import org.apache.hadoop.classification.InterfaceAudience; -import org.apache.hadoop.classification.InterfaceStability; http://git-wip-us.apache.org/repos/asf/hadoop/blob/10663b78/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/pom.xml ---------------------------------------------------------------------- diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/pom.xml index 3ca443f..d06907d 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/pom.xml +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/pom.xml @@ -24,36 +24,138 @@ <groupId>org.apache.hadoop</groupId> <version>3.2.0-SNAPSHOT</version> </parent> - <modelVersion>4.0.0</modelVersion> + <modelVersion>4.0.0</modelVersion> <artifactId>hadoop-yarn-server-timelineservice-hbase-server</artifactId> + <name>Apache Hadoop YARN TimelineService HBase Server</name> <version>3.2.0-SNAPSHOT</version> - <name>Apache Hadoop YARN TimelineService HBase Servers</name> - <packaging>pom</packaging> - - <profiles> - <profile> - <id>hbase1</id> - <activation> - <property> - <name>!hbase.profile</name> - </property> - </activation> - <modules> - <module>hadoop-yarn-server-timelineservice-hbase-server-1</module> - </modules> - </profile> - <profile> - <id>hbase2</id> - <activation> - <property> - <name>hbase.profile</name> - <value>2.0</value> - </property> - </activation> - <modules> - <module>hadoop-yarn-server-timelineservice-hbase-server-2</module> - </modules> - </profile> - </profiles> + + <properties> + <!-- Needed for generating FindBugs warnings using parent pom --> + <yarn.basedir>${project.parent.parent.parent.basedir}</yarn.basedir> + </properties> + + <dependencies> + <dependency> + <groupId>commons-logging</groupId> + <artifactId>commons-logging</artifactId> + </dependency> + + <dependency> + <groupId>com.google.guava</groupId> + <artifactId>guava</artifactId> + </dependency> + + <dependency> + <groupId>org.apache.hadoop</groupId> + <artifactId>hadoop-common</artifactId> + <scope>provided</scope> + </dependency> + + <dependency> + <groupId>org.apache.hadoop</groupId> + <artifactId>hadoop-yarn-api</artifactId> + <scope>provided</scope> + </dependency> + + <dependency> + <groupId>org.apache.hadoop</groupId> + <artifactId>hadoop-yarn-server-timelineservice-hbase-common</artifactId> + </dependency> + + <dependency> + <groupId>org.apache.hbase</groupId> + <artifactId>hbase-common</artifactId> + <scope>provided</scope> + <exclusions> + <exclusion> + <groupId>org.apache.hadoop</groupId> + <artifactId>hadoop-mapreduce-client-core</artifactId> + </exclusion> + <exclusion> + <groupId>org.mortbay.jetty</groupId> + <artifactId>jetty-util</artifactId> + </exclusion> + </exclusions> + </dependency> + + <dependency> + <groupId>org.apache.hbase</groupId> + <artifactId>hbase-client</artifactId> + <scope>provided</scope> + <exclusions> + <exclusion> + <groupId>org.apache.hadoop</groupId> + <artifactId>hadoop-mapreduce-client-core</artifactId> + </exclusion> + </exclusions> + </dependency> + + <dependency> + <groupId>org.apache.hbase</groupId> + <artifactId>hbase-server</artifactId> + <scope>provided</scope> + <exclusions> + <exclusion> + <groupId>org.apache.hadoop</groupId> + <artifactId>hadoop-hdfs</artifactId> + </exclusion> + <exclusion> + <groupId>org.apache.hadoop</groupId> + <artifactId>hadoop-hdfs-client</artifactId> + </exclusion> + <exclusion> + <groupId>org.apache.hadoop</groupId> + <artifactId>hadoop-client</artifactId> + </exclusion> + <exclusion> + <groupId>org.apache.hadoop</groupId> + <artifactId>hadoop-mapreduce-client-core</artifactId> + </exclusion> + <exclusion> + <groupId>org.mortbay.jetty</groupId> + <artifactId>jetty</artifactId> + </exclusion> + <exclusion> + <groupId>org.mortbay.jetty</groupId> + <artifactId>jetty-util</artifactId> + </exclusion> + <exclusion> + <groupId>org.mortbay.jetty</groupId> + <artifactId>jetty-sslengine</artifactId> + </exclusion> + </exclusions> + </dependency> + </dependencies> + + <build> + <plugins> + <plugin> + <artifactId>maven-assembly-plugin</artifactId> + <configuration> + <descriptor>src/assembly/coprocessor.xml</descriptor> + <attach>true</attach> + </configuration> + <executions> + <execution> + <id>create-coprocessor-jar</id> + <phase>prepare-package</phase> + <goals> + <goal>single</goal> + </goals> + </execution> + </executions> + </plugin> + <plugin> + <artifactId>maven-jar-plugin</artifactId> + <executions> + <execution> + <goals> + <goal>test-jar</goal> + </goals> + </execution> + </executions> + </plugin> + </plugins> + </build> </project> \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/10663b78/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/assembly/coprocessor.xml ---------------------------------------------------------------------- diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/assembly/coprocessor.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/assembly/coprocessor.xml new file mode 100644 index 0000000..01ff0dd --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/assembly/coprocessor.xml @@ -0,0 +1,37 @@ +<!-- + 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-2.01 + + 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. +--> +<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3"; + xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; + xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3 http://maven.apache.org/xsd/assembly-1.1.3.xsd";> + <id>coprocessor</id> + <formats> + <format>jar</format> + </formats> + <includeBaseDirectory>false</includeBaseDirectory> + <dependencySets> + <dependencySet> + <outputDirectory>/</outputDirectory> + <useProjectArtifact>true</useProjectArtifact> + <unpack>true</unpack> + <scope>runtime</scope> + <includes> + <include>org.apache.hadoop:hadoop-yarn-server-timelineservice-hbase-common</include> + <include>org.apache.hadoop:hadoop-yarn-server-timelineservice-hbase-server</include> + </includes> + </dependencySet> + </dependencySets> +</assembly> \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/10663b78/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/HBaseTimelineServerUtils.java ---------------------------------------------------------------------- diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/HBaseTimelineServerUtils.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/HBaseTimelineServerUtils.java new file mode 100644 index 0000000..5c07670 --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/HBaseTimelineServerUtils.java @@ -0,0 +1,135 @@ +/** + * 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.hadoop.yarn.server.timelineservice.storage.common; + +import org.apache.hadoop.hbase.Cell; +import org.apache.hadoop.hbase.CellUtil; +import org.apache.hadoop.hbase.KeyValue; +import org.apache.hadoop.hbase.Tag; +import org.apache.hadoop.hbase.util.Bytes; +import org.apache.hadoop.yarn.server.timelineservice.storage.flow.AggregationCompactionDimension; +import org.apache.hadoop.yarn.server.timelineservice.storage.flow.AggregationOperation; + +import java.io.IOException; +import java.util.List; +import java.util.Map; + +/** + * A utility class used by hbase-server module. + */ +public final class HBaseTimelineServerUtils { + private HBaseTimelineServerUtils() { + } + + /** + * Creates a {@link Tag} from the input attribute. + * + * @param attribute Attribute from which tag has to be fetched. + * @return a HBase Tag. + */ + public static Tag getTagFromAttribute(Map.Entry<String, byte[]> attribute) { + // attribute could be either an Aggregation Operation or + // an Aggregation Dimension + // Get the Tag type from either + AggregationOperation aggOp = AggregationOperation + .getAggregationOperation(attribute.getKey()); + if (aggOp != null) { + Tag t = new Tag(aggOp.getTagType(), attribute.getValue()); + return t; + } + + AggregationCompactionDimension aggCompactDim = + AggregationCompactionDimension.getAggregationCompactionDimension( + attribute.getKey()); + if (aggCompactDim != null) { + Tag t = new Tag(aggCompactDim.getTagType(), attribute.getValue()); + return t; + } + return null; + } + + /** + * creates a new cell based on the input cell but with the new value. + * + * @param origCell Original cell + * @param newValue new cell value + * @return cell + * @throws IOException while creating new cell. + */ + public static Cell createNewCell(Cell origCell, byte[] newValue) + throws IOException { + return CellUtil.createCell(CellUtil.cloneRow(origCell), + CellUtil.cloneFamily(origCell), CellUtil.cloneQualifier(origCell), + origCell.getTimestamp(), KeyValue.Type.Put.getCode(), newValue); + } + + /** + * creates a cell with the given inputs. + * + * @param row row of the cell to be created + * @param family column family name of the new cell + * @param qualifier qualifier for the new cell + * @param ts timestamp of the new cell + * @param newValue value of the new cell + * @param tags tags in the new cell + * @return cell + * @throws IOException while creating the cell. + */ + public static Cell createNewCell(byte[] row, byte[] family, byte[] qualifier, + long ts, byte[] newValue, byte[] tags) throws IOException { + return CellUtil.createCell(row, family, qualifier, ts, KeyValue.Type.Put, + newValue, tags); + } + + /** + * returns app id from the list of tags. + * + * @param tags cell tags to be looked into + * @return App Id as the AggregationCompactionDimension + */ + public static String getAggregationCompactionDimension(List<Tag> tags) { + String appId = null; + for (Tag t : tags) { + if (AggregationCompactionDimension.APPLICATION_ID.getTagType() == t + .getType()) { + appId = Bytes.toString(t.getValue()); + return appId; + } + } + return appId; + } + + /** + * Returns the first seen aggregation operation as seen in the list of input + * tags or null otherwise. + * + * @param tags list of HBase tags. + * @return AggregationOperation + */ + public static AggregationOperation getAggregationOperationFromTagsList( + List<Tag> tags) { + for (AggregationOperation aggOp : AggregationOperation.values()) { + for (Tag tag : tags) { + if (tag.getType() == aggOp.getTagType()) { + return aggOp; + } + } + } + return null; + } +} http://git-wip-us.apache.org/repos/asf/hadoop/blob/10663b78/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/package-info.java ---------------------------------------------------------------------- diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/package-info.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/package-info.java new file mode 100644 index 0000000..0df5b8a --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/package-info.java @@ -0,0 +1,28 @@ +/* + * 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.hadoop.yarn.server.timelineservice.storage.common contains + * a set of utility classes used across backend storage reader and writer. + */ +@InterfaceAudience.Private +@InterfaceStability.Unstable +package org.apache.hadoop.yarn.server.timelineservice.storage.common; + +import org.apache.hadoop.classification.InterfaceAudience; +import org.apache.hadoop.classification.InterfaceStability; http://git-wip-us.apache.org/repos/asf/hadoop/blob/10663b78/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowRunCoprocessor.java ---------------------------------------------------------------------- diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowRunCoprocessor.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowRunCoprocessor.java new file mode 100644 index 0000000..41a371b --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-server/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowRunCoprocessor.java @@ -0,0 +1,277 @@ +/** + * 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.hadoop.yarn.server.timelineservice.storage.flow; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; +import java.util.Map; +import java.util.NavigableMap; +import java.util.TreeMap; + +import org.apache.hadoop.hbase.Cell; +import org.apache.hadoop.hbase.CellUtil; +import org.apache.hadoop.hbase.CoprocessorEnvironment; +import org.apache.hadoop.hbase.HConstants; +import org.apache.hadoop.hbase.KeyValue; +import org.apache.hadoop.hbase.Tag; +import org.apache.hadoop.hbase.client.Durability; +import org.apache.hadoop.hbase.client.Get; +import org.apache.hadoop.hbase.client.Put; +import org.apache.hadoop.hbase.client.Scan; +import org.apache.hadoop.hbase.coprocessor.BaseRegionObserver; +import org.apache.hadoop.hbase.coprocessor.ObserverContext; +import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment; +import org.apache.hadoop.hbase.regionserver.Region; +import org.apache.hadoop.hbase.regionserver.InternalScanner; +import org.apache.hadoop.hbase.regionserver.RegionScanner; +import org.apache.hadoop.hbase.regionserver.ScanType; +import org.apache.hadoop.hbase.regionserver.Store; +import org.apache.hadoop.hbase.regionserver.StoreFile; +import org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest; +import org.apache.hadoop.hbase.regionserver.wal.WALEdit; +import org.apache.hadoop.hbase.util.Bytes; +import org.apache.hadoop.yarn.server.timelineservice.storage.common.HBaseTimelineServerUtils; +import org.apache.hadoop.yarn.server.timelineservice.storage.common.TimestampGenerator; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Coprocessor for flow run table. + */ +public class FlowRunCoprocessor extends BaseRegionObserver { + + private static final Logger LOG = + LoggerFactory.getLogger(FlowRunCoprocessor.class); + + private Region region; + /** + * generate a timestamp that is unique per row in a region this is per region. + */ + private final TimestampGenerator timestampGenerator = + new TimestampGenerator(); + + @Override + public void start(CoprocessorEnvironment e) throws IOException { + if (e instanceof RegionCoprocessorEnvironment) { + RegionCoprocessorEnvironment env = (RegionCoprocessorEnvironment) e; + this.region = env.getRegion(); + } + } + + /* + * (non-Javadoc) + * + * This method adds the tags onto the cells in the Put. It is presumed that + * all the cells in one Put have the same set of Tags. The existing cell + * timestamp is overwritten for non-metric cells and each such cell gets a new + * unique timestamp generated by {@link TimestampGenerator} + * + * @see + * org.apache.hadoop.hbase.coprocessor.BaseRegionObserver#prePut(org.apache + * .hadoop.hbase.coprocessor.ObserverContext, + * org.apache.hadoop.hbase.client.Put, + * org.apache.hadoop.hbase.regionserver.wal.WALEdit, + * org.apache.hadoop.hbase.client.Durability) + */ + @Override + public void prePut(ObserverContext<RegionCoprocessorEnvironment> e, Put put, + WALEdit edit, Durability durability) throws IOException { + Map<String, byte[]> attributes = put.getAttributesMap(); + // Assumption is that all the cells in a put are the same operation. + List<Tag> tags = new ArrayList<>(); + if ((attributes != null) && (attributes.size() > 0)) { + for (Map.Entry<String, byte[]> attribute : attributes.entrySet()) { + Tag t = HBaseTimelineServerUtils.getTagFromAttribute(attribute); + if (t != null) { + tags.add(t); + } + } + byte[] tagByteArray = Tag.fromList(tags); + NavigableMap<byte[], List<Cell>> newFamilyMap = new TreeMap<>( + Bytes.BYTES_COMPARATOR); + for (Map.Entry<byte[], List<Cell>> entry : put.getFamilyCellMap() + .entrySet()) { + List<Cell> newCells = new ArrayList<>(entry.getValue().size()); + for (Cell cell : entry.getValue()) { + // for each cell in the put add the tags + // Assumption is that all the cells in + // one put are the same operation + // also, get a unique cell timestamp for non-metric cells + // this way we don't inadvertently overwrite cell versions + long cellTimestamp = getCellTimestamp(cell.getTimestamp(), tags); + newCells.add(CellUtil.createCell(CellUtil.cloneRow(cell), + CellUtil.cloneFamily(cell), CellUtil.cloneQualifier(cell), + cellTimestamp, KeyValue.Type.Put, CellUtil.cloneValue(cell), + tagByteArray)); + } + newFamilyMap.put(entry.getKey(), newCells); + } // for each entry + // Update the family map for the Put + put.setFamilyCellMap(newFamilyMap); + } + } + + /** + * Determines if the current cell's timestamp is to be used or a new unique + * cell timestamp is to be used. The reason this is done is to inadvertently + * overwrite cells when writes come in very fast. But for metric cells, the + * cell timestamp signifies the metric timestamp. Hence we don't want to + * overwrite it. + * + * @param timestamp + * @param tags + * @return cell timestamp + */ + private long getCellTimestamp(long timestamp, List<Tag> tags) { + // if ts not set (hbase sets to HConstants.LATEST_TIMESTAMP by default) + // then use the generator + if (timestamp == HConstants.LATEST_TIMESTAMP) { + return timestampGenerator.getUniqueTimestamp(); + } else { + return timestamp; + } + } + + /* + * (non-Javadoc) + * + * Creates a {@link FlowScanner} Scan so that it can correctly process the + * contents of {@link FlowRunTable}. + * + * @see + * org.apache.hadoop.hbase.coprocessor.BaseRegionObserver#preGetOp(org.apache + * .hadoop.hbase.coprocessor.ObserverContext, + * org.apache.hadoop.hbase.client.Get, java.util.List) + */ + @Override + public void preGetOp(ObserverContext<RegionCoprocessorEnvironment> e, + Get get, List<Cell> results) throws IOException { + Scan scan = new Scan(get); + scan.setMaxVersions(); + RegionScanner scanner = null; + try { + scanner = new FlowScanner(e.getEnvironment(), scan, + region.getScanner(scan), FlowScannerOperation.READ); + scanner.next(results); + e.bypass(); + } finally { + if (scanner != null) { + scanner.close(); + } + } + } + + /* + * (non-Javadoc) + * + * Ensures that max versions are set for the Scan so that metrics can be + * correctly aggregated and min/max can be correctly determined. + * + * @see + * org.apache.hadoop.hbase.coprocessor.BaseRegionObserver#preScannerOpen(org + * .apache.hadoop.hbase.coprocessor.ObserverContext, + * org.apache.hadoop.hbase.client.Scan, + * org.apache.hadoop.hbase.regionserver.RegionScanner) + */ + @Override + public RegionScanner preScannerOpen( + ObserverContext<RegionCoprocessorEnvironment> e, Scan scan, + RegionScanner scanner) throws IOException { + // set max versions for scan to see all + // versions to aggregate for metrics + scan.setMaxVersions(); + return scanner; + } + + /* + * (non-Javadoc) + * + * Creates a {@link FlowScanner} Scan so that it can correctly process the + * contents of {@link FlowRunTable}. + * + * @see + * org.apache.hadoop.hbase.coprocessor.BaseRegionObserver#postScannerOpen( + * org.apache.hadoop.hbase.coprocessor.ObserverContext, + * org.apache.hadoop.hbase.client.Scan, + * org.apache.hadoop.hbase.regionserver.RegionScanner) + */ + @Override + public RegionScanner postScannerOpen( + ObserverContext<RegionCoprocessorEnvironment> e, Scan scan, + RegionScanner scanner) throws IOException { + return new FlowScanner(e.getEnvironment(), scan, + scanner, FlowScannerOperation.READ); + } + + @Override + public InternalScanner preFlush( + ObserverContext<RegionCoprocessorEnvironment> c, Store store, + InternalScanner scanner) throws IOException { + if (LOG.isDebugEnabled()) { + if (store != null) { + LOG.debug("preFlush store = " + store.getColumnFamilyName() + + " flushableSize=" + store.getFlushableSize() + + " flushedCellsCount=" + store.getFlushedCellsCount() + + " compactedCellsCount=" + store.getCompactedCellsCount() + + " majorCompactedCellsCount=" + + store.getMajorCompactedCellsCount() + " memstoreFlushSize=" + + store.getMemstoreFlushSize() + " memstoreSize=" + + store.getMemStoreSize() + " size=" + store.getSize() + + " storeFilesCount=" + store.getStorefilesCount()); + } + } + return new FlowScanner(c.getEnvironment(), scanner, + FlowScannerOperation.FLUSH); + } + + @Override + public void postFlush(ObserverContext<RegionCoprocessorEnvironment> c, + Store store, StoreFile resultFile) { + if (LOG.isDebugEnabled()) { + if (store != null) { + LOG.debug("postFlush store = " + store.getColumnFamilyName() + + " flushableSize=" + store.getFlushableSize() + + " flushedCellsCount=" + store.getFlushedCellsCount() + + " compactedCellsCount=" + store.getCompactedCellsCount() + + " majorCompactedCellsCount=" + + store.getMajorCompactedCellsCount() + " memstoreFlushSize=" + + store.getMemstoreFlushSize() + " memstoreSize=" + + store.getMemStoreSize() + " size=" + store.getSize() + + " storeFilesCount=" + store.getStorefilesCount()); + } + } + } + + @Override + public InternalScanner preCompact( + ObserverContext<RegionCoprocessorEnvironment> e, Store store, + InternalScanner scanner, ScanType scanType, CompactionRequest request) + throws IOException { + + FlowScannerOperation requestOp = FlowScannerOperation.MINOR_COMPACTION; + if (request != null) { + requestOp = (request.isMajor() ? FlowScannerOperation.MAJOR_COMPACTION + : FlowScannerOperation.MINOR_COMPACTION); + LOG.info("Compactionrequest= " + request.toString() + " " + + requestOp.toString() + " RegionName=" + e.getEnvironment() + .getRegion().getRegionInfo().getRegionNameAsString()); + } + return new FlowScanner(e.getEnvironment(), scanner, requestOp); + } +} --------------------------------------------------------------------- To unsubscribe, e-mail: common-commits-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-commits-h...@hadoop.apache.org
