Repository: hadoop Updated Branches: refs/heads/YARN-7055 2e887bc1c -> f527ff055
http://git-wip-us.apache.org/repos/asf/hadoop/blob/f527ff05/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/FlowScanner.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/FlowScanner.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/FlowScanner.java deleted file mode 100644 index 7f09e51..0000000 --- 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/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 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 = Tag.asList(cell.getTagsArray(), cell.getTagsOffset(), - cell.getTagsLength()); - // 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 = Tag.asList(cell.getTagsArray(), cell.getTagsOffset(), - cell.getTagsLength()); - 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 = Tag.asList(cell.getTagsArray(), cell.getTagsOffset(), - cell.getTagsLength()); - 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 = new Tag(AggregationOperation.SUM_FINAL.getTagType(), - Bytes.toBytes(FLOW_APP_ID)); - tags.add(t); - t = new Tag(AggregationCompactionDimension.APPLICATION_ID.getTagType(), - Bytes.toBytes(FLOW_APP_ID)); - tags.add(t); - byte[] tagByteArray = Tag.fromList(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/f527ff05/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/FlowScannerOperation.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/FlowScannerOperation.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/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/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/f527ff05/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/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/flow/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/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/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/f527ff05/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/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/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/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/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; --------------------------------------------------------------------- To unsubscribe, e-mail: common-commits-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-commits-h...@hadoop.apache.org
