http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1241ee85/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.GetSeqId.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.GetSeqId.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.GetSeqId.html index b01aa5a..8090868 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.GetSeqId.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.GetSeqId.html @@ -597,215 +597,221 @@ <span class="sourceLineNo">589</span> return reader;<a name="line.589"></a> <span class="sourceLineNo">590</span> }<a name="line.590"></a> <span class="sourceLineNo">591</span><a name="line.591"></a> -<span class="sourceLineNo">592</span> public StoreFileScanner getStreamScanner(boolean canUseDropBehind, boolean cacheBlocks,<a name="line.592"></a> -<span class="sourceLineNo">593</span> boolean pread, boolean isCompaction, long readPt, long scannerOrder,<a name="line.593"></a> -<span class="sourceLineNo">594</span> boolean canOptimizeForNonNullColumn) throws IOException {<a name="line.594"></a> -<span class="sourceLineNo">595</span> return createStreamReader(canUseDropBehind).getStoreFileScanner(<a name="line.595"></a> -<span class="sourceLineNo">596</span> cacheBlocks, pread, isCompaction, readPt, scannerOrder, canOptimizeForNonNullColumn);<a name="line.596"></a> -<span class="sourceLineNo">597</span> }<a name="line.597"></a> -<span class="sourceLineNo">598</span><a name="line.598"></a> -<span class="sourceLineNo">599</span> /**<a name="line.599"></a> -<span class="sourceLineNo">600</span> * @return Current reader. 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cacheConf.shouldEvictOnClose(): true;<a name="line.638"></a> +<span class="sourceLineNo">639</span> closeReader(evictOnClose);<a name="line.639"></a> +<span class="sourceLineNo">640</span> this.fs.delete(getPath(), true);<a name="line.640"></a> +<span class="sourceLineNo">641</span> }<a name="line.641"></a> +<span class="sourceLineNo">642</span><a name="line.642"></a> +<span class="sourceLineNo">643</span> @Override<a name="line.643"></a> +<span class="sourceLineNo">644</span> public String toString() {<a name="line.644"></a> +<span class="sourceLineNo">645</span> return this.fileInfo.toString();<a name="line.645"></a> +<span class="sourceLineNo">646</span> }<a name="line.646"></a> +<span class="sourceLineNo">647</span><a name="line.647"></a> +<span class="sourceLineNo">648</span> /**<a name="line.648"></a> +<span class="sourceLineNo">649</span> * @return a length description of this StoreFile, suitable for debug output<a name="line.649"></a> +<span class="sourceLineNo">650</span> */<a name="line.650"></a> +<span class="sourceLineNo">651</span> public String toStringDetailed() {<a name="line.651"></a> +<span class="sourceLineNo">652</span> StringBuilder sb = new StringBuilder();<a name="line.652"></a> +<span class="sourceLineNo">653</span> sb.append(this.getPath().toString());<a name="line.653"></a> +<span class="sourceLineNo">654</span> sb.append(", isReference=").append(isReference());<a name="line.654"></a> +<span class="sourceLineNo">655</span> sb.append(", isBulkLoadResult=").append(isBulkLoadResult());<a name="line.655"></a> +<span class="sourceLineNo">656</span> if (isBulkLoadResult()) {<a name="line.656"></a> +<span class="sourceLineNo">657</span> sb.append(", bulkLoadTS=").append(getBulkLoadTimestamp());<a name="line.657"></a> +<span class="sourceLineNo">658</span> } else {<a name="line.658"></a> +<span class="sourceLineNo">659</span> sb.append(", seqid=").append(getMaxSequenceId());<a name="line.659"></a> +<span class="sourceLineNo">660</span> }<a name="line.660"></a> +<span class="sourceLineNo">661</span> sb.append(", majorCompaction=").append(isMajorCompaction());<a name="line.661"></a> +<span class="sourceLineNo">662</span><a name="line.662"></a> +<span class="sourceLineNo">663</span> return sb.toString();<a name="line.663"></a> +<span class="sourceLineNo">664</span> }<a name="line.664"></a> +<span class="sourceLineNo">665</span><a name="line.665"></a> +<span class="sourceLineNo">666</span> /**<a name="line.666"></a> +<span class="sourceLineNo">667</span> * Gets whether to skip resetting the sequence id for cells.<a name="line.667"></a> +<span class="sourceLineNo">668</span> * @param skipResetSeqId The byte array of boolean.<a name="line.668"></a> +<span class="sourceLineNo">669</span> * @return Whether to skip resetting the sequence id.<a name="line.669"></a> +<span class="sourceLineNo">670</span> */<a name="line.670"></a> +<span class="sourceLineNo">671</span> private boolean isSkipResetSeqId(byte[] skipResetSeqId) {<a name="line.671"></a> +<span class="sourceLineNo">672</span> if (skipResetSeqId != null && skipResetSeqId.length == 1) {<a name="line.672"></a> +<span class="sourceLineNo">673</span> return Bytes.toBoolean(skipResetSeqId);<a name="line.673"></a> +<span class="sourceLineNo">674</span> }<a name="line.674"></a> +<span class="sourceLineNo">675</span> return false;<a name="line.675"></a> +<span class="sourceLineNo">676</span> }<a name="line.676"></a> +<span class="sourceLineNo">677</span><a name="line.677"></a> +<span class="sourceLineNo">678</span> /**<a name="line.678"></a> +<span class="sourceLineNo">679</span> * @param fs<a name="line.679"></a> +<span class="sourceLineNo">680</span> * @param dir Directory to create file in.<a name="line.680"></a> +<span class="sourceLineNo">681</span> * @return random filename inside passed <code>dir</code><a name="line.681"></a> +<span class="sourceLineNo">682</span> */<a name="line.682"></a> +<span class="sourceLineNo">683</span> public static Path getUniqueFile(final FileSystem fs, final Path dir)<a name="line.683"></a> +<span class="sourceLineNo">684</span> throws IOException {<a name="line.684"></a> +<span class="sourceLineNo">685</span> if (!fs.getFileStatus(dir).isDirectory()) {<a name="line.685"></a> +<span class="sourceLineNo">686</span> throw new IOException("Expecting " + dir.toString() +<a name="line.686"></a> +<span class="sourceLineNo">687</span> " to be a directory");<a name="line.687"></a> +<span class="sourceLineNo">688</span> }<a name="line.688"></a> +<span class="sourceLineNo">689</span> return new Path(dir, UUID.randomUUID().toString().replaceAll("-", ""));<a name="line.689"></a> +<span class="sourceLineNo">690</span> }<a name="line.690"></a> +<span class="sourceLineNo">691</span><a name="line.691"></a> +<span class="sourceLineNo">692</span> public Long getMinimumTimestamp() {<a name="line.692"></a> +<span class="sourceLineNo">693</span> return getReader().timeRange == null? null: getReader().timeRange.getMin();<a name="line.693"></a> +<span class="sourceLineNo">694</span> }<a name="line.694"></a> +<span class="sourceLineNo">695</span><a name="line.695"></a> +<span class="sourceLineNo">696</span> public Long getMaximumTimestamp() {<a name="line.696"></a> +<span class="sourceLineNo">697</span> return getReader().timeRange == null? null: getReader().timeRange.getMax();<a name="line.697"></a> +<span class="sourceLineNo">698</span> }<a name="line.698"></a> +<span class="sourceLineNo">699</span><a name="line.699"></a> +<span class="sourceLineNo">700</span><a name="line.700"></a> +<span class="sourceLineNo">701</span> /**<a name="line.701"></a> +<span class="sourceLineNo">702</span> * Gets the approximate mid-point of this file that is optimal for use in splitting it.<a name="line.702"></a> +<span class="sourceLineNo">703</span> * @param comparator Comparator used to compare KVs.<a name="line.703"></a> +<span class="sourceLineNo">704</span> * @return The split point row, or null if splitting is not possible, or reader is null.<a name="line.704"></a> +<span class="sourceLineNo">705</span> */<a name="line.705"></a> +<span class="sourceLineNo">706</span> byte[] getFileSplitPoint(CellComparator comparator) throws IOException {<a name="line.706"></a> +<span class="sourceLineNo">707</span> if (this.reader == null) {<a name="line.707"></a> +<span class="sourceLineNo">708</span> LOG.warn("Storefile " + this + " Reader is null; cannot get split point");<a name="line.708"></a> +<span class="sourceLineNo">709</span> return null;<a name="line.709"></a> +<span class="sourceLineNo">710</span> }<a name="line.710"></a> +<span class="sourceLineNo">711</span> // Get first, last, and mid keys. 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SeqId is still the first<a name="line.752"></a> +<span class="sourceLineNo">753</span> * ordering criterion to maintain MVCC.<a name="line.753"></a> +<span class="sourceLineNo">754</span> */<a name="line.754"></a> +<span class="sourceLineNo">755</span> public static final Comparator<StoreFile> SEQ_ID_MAX_TIMESTAMP =<a name="line.755"></a> +<span class="sourceLineNo">756</span> Ordering.compound(ImmutableList.of(<a name="line.756"></a> +<span class="sourceLineNo">757</span> Ordering.natural().onResultOf(new GetSeqId()),<a name="line.757"></a> +<span class="sourceLineNo">758</span> Ordering.natural().onResultOf(new GetMaxTimestamp()),<a name="line.758"></a> +<span class="sourceLineNo">759</span> Ordering.natural().onResultOf(new GetFileSize()).reverse(),<a name="line.759"></a> +<span class="sourceLineNo">760</span> Ordering.natural().onResultOf(new GetBulkTime()),<a name="line.760"></a> +<span class="sourceLineNo">761</span> Ordering.natural().onResultOf(new GetPathName())<a name="line.761"></a> +<span class="sourceLineNo">762</span> ));<a name="line.762"></a> +<span class="sourceLineNo">763</span><a name="line.763"></a> +<span class="sourceLineNo">764</span> private static class GetSeqId implements Function<StoreFile, Long> {<a name="line.764"></a> +<span class="sourceLineNo">765</span> @Override<a name="line.765"></a> +<span class="sourceLineNo">766</span> public Long apply(StoreFile sf) {<a name="line.766"></a> +<span class="sourceLineNo">767</span> return sf.getMaxSequenceId();<a name="line.767"></a> +<span class="sourceLineNo">768</span> }<a name="line.768"></a> +<span class="sourceLineNo">769</span> }<a name="line.769"></a> +<span class="sourceLineNo">770</span><a name="line.770"></a> +<span class="sourceLineNo">771</span> private static class GetFileSize implements Function<StoreFile, Long> {<a name="line.771"></a> +<span class="sourceLineNo">772</span> @Override<a name="line.772"></a> +<span class="sourceLineNo">773</span> public Long apply(StoreFile sf) {<a name="line.773"></a> +<span class="sourceLineNo">774</span> if (sf.getReader() != null) {<a name="line.774"></a> +<span class="sourceLineNo">775</span> return sf.getReader().length();<a name="line.775"></a> +<span class="sourceLineNo">776</span> } else {<a name="line.776"></a> +<span class="sourceLineNo">777</span> // the reader may be null for the compacted files and if the archiving<a name="line.777"></a> +<span class="sourceLineNo">778</span> // had failed.<a name="line.778"></a> +<span class="sourceLineNo">779</span> return -1L;<a name="line.779"></a> +<span class="sourceLineNo">780</span> }<a name="line.780"></a> +<span class="sourceLineNo">781</span> }<a name="line.781"></a> +<span class="sourceLineNo">782</span> }<a name="line.782"></a> +<span class="sourceLineNo">783</span><a name="line.783"></a> +<span class="sourceLineNo">784</span> private static class GetBulkTime implements Function<StoreFile, Long> {<a name="line.784"></a> +<span class="sourceLineNo">785</span> @Override<a name="line.785"></a> +<span class="sourceLineNo">786</span> public Long apply(StoreFile sf) {<a name="line.786"></a> +<span class="sourceLineNo">787</span> if (!sf.isBulkLoadResult()) return Long.MAX_VALUE;<a name="line.787"></a> +<span class="sourceLineNo">788</span> return sf.getBulkLoadTimestamp();<a name="line.788"></a> +<span class="sourceLineNo">789</span> }<a name="line.789"></a> +<span class="sourceLineNo">790</span> }<a name="line.790"></a> +<span class="sourceLineNo">791</span><a name="line.791"></a> +<span class="sourceLineNo">792</span> private static class GetPathName implements Function<StoreFile, String> {<a name="line.792"></a> +<span class="sourceLineNo">793</span> @Override<a name="line.793"></a> +<span class="sourceLineNo">794</span> public String apply(StoreFile sf) {<a name="line.794"></a> +<span class="sourceLineNo">795</span> return sf.getPath().getName();<a name="line.795"></a> +<span class="sourceLineNo">796</span> }<a name="line.796"></a> +<span class="sourceLineNo">797</span> }<a name="line.797"></a> +<span class="sourceLineNo">798</span><a name="line.798"></a> +<span class="sourceLineNo">799</span> private static class GetMaxTimestamp implements Function<StoreFile, Long> {<a name="line.799"></a> +<span class="sourceLineNo">800</span> @Override<a name="line.800"></a> +<span class="sourceLineNo">801</span> public Long apply(StoreFile sf) {<a name="line.801"></a> +<span class="sourceLineNo">802</span> return sf.getMaximumTimestamp() == null? (Long)Long.MAX_VALUE : sf.getMaximumTimestamp();<a name="line.802"></a> +<span class="sourceLineNo">803</span> }<a name="line.803"></a> +<span class="sourceLineNo">804</span> }<a name="line.804"></a> +<span class="sourceLineNo">805</span> }<a name="line.805"></a> +<span class="sourceLineNo">806</span>}<a name="line.806"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1241ee85/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.html index b01aa5a..8090868 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFile.Comparators.html @@ -597,215 +597,221 @@ <span class="sourceLineNo">589</span> return reader;<a name="line.589"></a> <span class="sourceLineNo">590</span> }<a name="line.590"></a> <span class="sourceLineNo">591</span><a name="line.591"></a> -<span class="sourceLineNo">592</span> public StoreFileScanner getStreamScanner(boolean canUseDropBehind, boolean cacheBlocks,<a name="line.592"></a> -<span class="sourceLineNo">593</span> boolean pread, boolean isCompaction, long readPt, long scannerOrder,<a name="line.593"></a> -<span class="sourceLineNo">594</span> boolean canOptimizeForNonNullColumn) throws IOException {<a name="line.594"></a> -<span class="sourceLineNo">595</span> return createStreamReader(canUseDropBehind).getStoreFileScanner(<a name="line.595"></a> -<span class="sourceLineNo">596</span> cacheBlocks, pread, isCompaction, readPt, scannerOrder, canOptimizeForNonNullColumn);<a name="line.596"></a> -<span class="sourceLineNo">597</span> }<a name="line.597"></a> -<span class="sourceLineNo">598</span><a name="line.598"></a> -<span class="sourceLineNo">599</span> /**<a name="line.599"></a> -<span class="sourceLineNo">600</span> * @return Current reader. 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Must call initReader first else returns null.<a name="line.606"></a> +<span class="sourceLineNo">607</span> * @see #initReader()<a name="line.607"></a> +<span class="sourceLineNo">608</span> */<a name="line.608"></a> +<span class="sourceLineNo">609</span> public StoreFileReader getReader() {<a name="line.609"></a> +<span class="sourceLineNo">610</span> return this.reader;<a name="line.610"></a> +<span class="sourceLineNo">611</span> }<a name="line.611"></a> +<span class="sourceLineNo">612</span><a name="line.612"></a> +<span class="sourceLineNo">613</span> /**<a name="line.613"></a> +<span class="sourceLineNo">614</span> * @param evictOnClose whether to evict blocks belonging to this file<a name="line.614"></a> +<span class="sourceLineNo">615</span> * @throws IOException<a name="line.615"></a> +<span class="sourceLineNo">616</span> */<a name="line.616"></a> +<span class="sourceLineNo">617</span> public synchronized void closeReader(boolean evictOnClose)<a name="line.617"></a> +<span class="sourceLineNo">618</span> throws IOException {<a name="line.618"></a> +<span class="sourceLineNo">619</span> if (this.reader != null) {<a name="line.619"></a> +<span class="sourceLineNo">620</span> this.reader.close(evictOnClose);<a name="line.620"></a> +<span class="sourceLineNo">621</span> this.reader = null;<a name="line.621"></a> +<span class="sourceLineNo">622</span> }<a name="line.622"></a> +<span class="sourceLineNo">623</span> }<a name="line.623"></a> +<span class="sourceLineNo">624</span><a name="line.624"></a> +<span class="sourceLineNo">625</span> /**<a name="line.625"></a> +<span class="sourceLineNo">626</span> * Marks the status of the file as compactedAway.<a name="line.626"></a> +<span class="sourceLineNo">627</span> */<a name="line.627"></a> +<span class="sourceLineNo">628</span> public void markCompactedAway() {<a name="line.628"></a> +<span class="sourceLineNo">629</span> this.compactedAway = true;<a name="line.629"></a> +<span class="sourceLineNo">630</span> }<a name="line.630"></a> +<span class="sourceLineNo">631</span><a name="line.631"></a> +<span class="sourceLineNo">632</span> /**<a name="line.632"></a> +<span class="sourceLineNo">633</span> * Delete this file<a name="line.633"></a> +<span class="sourceLineNo">634</span> * @throws IOException<a name="line.634"></a> +<span class="sourceLineNo">635</span> */<a name="line.635"></a> +<span class="sourceLineNo">636</span> public void deleteReader() throws IOException {<a name="line.636"></a> +<span class="sourceLineNo">637</span> boolean evictOnClose =<a name="line.637"></a> +<span class="sourceLineNo">638</span> cacheConf != null? cacheConf.shouldEvictOnClose(): true;<a name="line.638"></a> +<span class="sourceLineNo">639</span> closeReader(evictOnClose);<a name="line.639"></a> +<span class="sourceLineNo">640</span> this.fs.delete(getPath(), true);<a name="line.640"></a> +<span class="sourceLineNo">641</span> }<a name="line.641"></a> +<span class="sourceLineNo">642</span><a name="line.642"></a> +<span class="sourceLineNo">643</span> @Override<a name="line.643"></a> +<span class="sourceLineNo">644</span> public String toString() {<a name="line.644"></a> +<span class="sourceLineNo">645</span> return this.fileInfo.toString();<a name="line.645"></a> +<span class="sourceLineNo">646</span> }<a name="line.646"></a> +<span class="sourceLineNo">647</span><a name="line.647"></a> +<span class="sourceLineNo">648</span> /**<a name="line.648"></a> +<span class="sourceLineNo">649</span> * @return a length description of this StoreFile, suitable for debug output<a name="line.649"></a> +<span class="sourceLineNo">650</span> */<a name="line.650"></a> +<span class="sourceLineNo">651</span> public String toStringDetailed() {<a name="line.651"></a> +<span class="sourceLineNo">652</span> StringBuilder sb = new StringBuilder();<a name="line.652"></a> +<span class="sourceLineNo">653</span> sb.append(this.getPath().toString());<a name="line.653"></a> +<span class="sourceLineNo">654</span> sb.append(", isReference=").append(isReference());<a name="line.654"></a> +<span class="sourceLineNo">655</span> sb.append(", isBulkLoadResult=").append(isBulkLoadResult());<a name="line.655"></a> +<span class="sourceLineNo">656</span> if (isBulkLoadResult()) {<a name="line.656"></a> +<span class="sourceLineNo">657</span> sb.append(", bulkLoadTS=").append(getBulkLoadTimestamp());<a name="line.657"></a> +<span class="sourceLineNo">658</span> } else {<a name="line.658"></a> +<span class="sourceLineNo">659</span> sb.append(", seqid=").append(getMaxSequenceId());<a name="line.659"></a> +<span class="sourceLineNo">660</span> }<a name="line.660"></a> +<span class="sourceLineNo">661</span> sb.append(", majorCompaction=").append(isMajorCompaction());<a name="line.661"></a> +<span class="sourceLineNo">662</span><a name="line.662"></a> +<span class="sourceLineNo">663</span> return sb.toString();<a name="line.663"></a> +<span class="sourceLineNo">664</span> }<a name="line.664"></a> +<span class="sourceLineNo">665</span><a name="line.665"></a> +<span class="sourceLineNo">666</span> /**<a name="line.666"></a> +<span class="sourceLineNo">667</span> * Gets whether to skip resetting the sequence id for cells.<a name="line.667"></a> +<span class="sourceLineNo">668</span> * @param skipResetSeqId The byte array of boolean.<a name="line.668"></a> +<span class="sourceLineNo">669</span> * @return Whether to skip resetting the sequence id.<a name="line.669"></a> +<span class="sourceLineNo">670</span> */<a name="line.670"></a> +<span class="sourceLineNo">671</span> private boolean isSkipResetSeqId(byte[] skipResetSeqId) {<a name="line.671"></a> +<span class="sourceLineNo">672</span> if (skipResetSeqId != null && skipResetSeqId.length == 1) {<a name="line.672"></a> +<span class="sourceLineNo">673</span> return Bytes.toBoolean(skipResetSeqId);<a name="line.673"></a> +<span class="sourceLineNo">674</span> }<a name="line.674"></a> +<span class="sourceLineNo">675</span> return false;<a name="line.675"></a> +<span class="sourceLineNo">676</span> }<a name="line.676"></a> +<span class="sourceLineNo">677</span><a name="line.677"></a> +<span class="sourceLineNo">678</span> /**<a name="line.678"></a> +<span class="sourceLineNo">679</span> * @param fs<a name="line.679"></a> +<span class="sourceLineNo">680</span> * @param dir Directory to create file in.<a name="line.680"></a> +<span class="sourceLineNo">681</span> * @return random filename inside passed <code>dir</code><a name="line.681"></a> +<span class="sourceLineNo">682</span> */<a name="line.682"></a> +<span class="sourceLineNo">683</span> public static Path getUniqueFile(final FileSystem fs, final Path dir)<a name="line.683"></a> +<span class="sourceLineNo">684</span> throws IOException {<a name="line.684"></a> +<span class="sourceLineNo">685</span> if (!fs.getFileStatus(dir).isDirectory()) {<a name="line.685"></a> +<span class="sourceLineNo">686</span> throw new IOException("Expecting " + dir.toString() +<a name="line.686"></a> +<span class="sourceLineNo">687</span> " to be a directory");<a name="line.687"></a> +<span class="sourceLineNo">688</span> }<a name="line.688"></a> +<span class="sourceLineNo">689</span> return new Path(dir, UUID.randomUUID().toString().replaceAll("-", ""));<a name="line.689"></a> +<span class="sourceLineNo">690</span> }<a name="line.690"></a> +<span class="sourceLineNo">691</span><a name="line.691"></a> +<span class="sourceLineNo">692</span> public Long getMinimumTimestamp() {<a name="line.692"></a> +<span class="sourceLineNo">693</span> return getReader().timeRange == null? null: getReader().timeRange.getMin();<a name="line.693"></a> +<span class="sourceLineNo">694</span> }<a name="line.694"></a> +<span class="sourceLineNo">695</span><a name="line.695"></a> +<span class="sourceLineNo">696</span> public Long getMaximumTimestamp() {<a name="line.696"></a> +<span class="sourceLineNo">697</span> return getReader().timeRange == null? null: getReader().timeRange.getMax();<a name="line.697"></a> +<span class="sourceLineNo">698</span> }<a name="line.698"></a> +<span class="sourceLineNo">699</span><a name="line.699"></a> +<span class="sourceLineNo">700</span><a name="line.700"></a> +<span class="sourceLineNo">701</span> /**<a name="line.701"></a> +<span class="sourceLineNo">702</span> * Gets the approximate mid-point of this file that is optimal for use in splitting it.<a name="line.702"></a> +<span class="sourceLineNo">703</span> * @param comparator Comparator used to compare KVs.<a name="line.703"></a> +<span class="sourceLineNo">704</span> * @return The split point row, or null if splitting is not possible, or reader is null.<a name="line.704"></a> +<span class="sourceLineNo">705</span> */<a name="line.705"></a> +<span class="sourceLineNo">706</span> byte[] getFileSplitPoint(CellComparator comparator) throws IOException {<a name="line.706"></a> +<span class="sourceLineNo">707</span> if (this.reader == null) {<a name="line.707"></a> +<span class="sourceLineNo">708</span> LOG.warn("Storefile " + this + " Reader is null; cannot get split point");<a name="line.708"></a> +<span class="sourceLineNo">709</span> return null;<a name="line.709"></a> +<span class="sourceLineNo">710</span> }<a name="line.710"></a> +<span class="sourceLineNo">711</span> // Get first, last, and mid keys. Midkey is the key that starts block<a name="line.711"></a> +<span class="sourceLineNo">712</span> // in middle of hfile. Has column and timestamp. Need to return just<a name="line.712"></a> +<span class="sourceLineNo">713</span> // the row we want to split on as midkey.<a name="line.713"></a> +<span class="sourceLineNo">714</span> Cell midkey = this.reader.midkey();<a name="line.714"></a> +<span class="sourceLineNo">715</span> if (midkey != null) {<a name="line.715"></a> +<span class="sourceLineNo">716</span> Cell firstKey = this.reader.getFirstKey();<a name="line.716"></a> +<span class="sourceLineNo">717</span> Cell lastKey = this.reader.getLastKey();<a name="line.717"></a> +<span class="sourceLineNo">718</span> // if the midkey is the same as the first or last keys, we cannot (ever) split this region.<a name="line.718"></a> +<span class="sourceLineNo">719</span> if (comparator.compareRows(midkey, firstKey) == 0<a name="line.719"></a> +<span class="sourceLineNo">720</span> || comparator.compareRows(midkey, lastKey) == 0) {<a name="line.720"></a> +<span class="sourceLineNo">721</span> if (LOG.isDebugEnabled()) {<a name="line.721"></a> +<span class="sourceLineNo">722</span> LOG.debug("cannot split because midkey is the same as first or last row");<a name="line.722"></a> +<span class="sourceLineNo">723</span> }<a name="line.723"></a> +<span class="sourceLineNo">724</span> return null;<a name="line.724"></a> +<span class="sourceLineNo">725</span> }<a name="line.725"></a> +<span class="sourceLineNo">726</span> return CellUtil.cloneRow(midkey);<a name="line.726"></a> +<span class="sourceLineNo">727</span> }<a name="line.727"></a> +<span class="sourceLineNo">728</span> return null;<a name="line.728"></a> +<span class="sourceLineNo">729</span> }<a name="line.729"></a> +<span class="sourceLineNo">730</span><a name="line.730"></a> +<span class="sourceLineNo">731</span> /**<a name="line.731"></a> +<span class="sourceLineNo">732</span> * Useful comparators for comparing StoreFiles.<a name="line.732"></a> +<span class="sourceLineNo">733</span> */<a name="line.733"></a> +<span class="sourceLineNo">734</span> public abstract static class Comparators {<a name="line.734"></a> +<span class="sourceLineNo">735</span> /**<a name="line.735"></a> +<span class="sourceLineNo">736</span> * Comparator that compares based on the Sequence Ids of the<a name="line.736"></a> +<span class="sourceLineNo">737</span> * the StoreFiles. Bulk loads that did not request a seq ID<a name="line.737"></a> +<span class="sourceLineNo">738</span> * are given a seq id of -1; thus, they are placed before all non-<a name="line.738"></a> +<span class="sourceLineNo">739</span> * bulk loads, and bulk loads with sequence Id. Among these files,<a name="line.739"></a> +<span class="sourceLineNo">740</span> * the size is used to determine the ordering, then bulkLoadTime.<a name="line.740"></a> +<span class="sourceLineNo">741</span> * If there are ties, the path name is used as a tie-breaker.<a name="line.741"></a> +<span class="sourceLineNo">742</span> */<a name="line.742"></a> +<span class="sourceLineNo">743</span> public static final Comparator<StoreFile> SEQ_ID =<a name="line.743"></a> +<span class="sourceLineNo">744</span> Ordering.compound(ImmutableList.of(<a name="line.744"></a> +<span class="sourceLineNo">745</span> Ordering.natural().onResultOf(new GetSeqId()),<a name="line.745"></a> +<span class="sourceLineNo">746</span> Ordering.natural().onResultOf(new GetFileSize()).reverse(),<a name="line.746"></a> +<span class="sourceLineNo">747</span> Ordering.natural().onResultOf(new GetBulkTime()),<a name="line.747"></a> +<span class="sourceLineNo">748</span> Ordering.natural().onResultOf(new GetPathName())<a name="line.748"></a> +<span class="sourceLineNo">749</span> ));<a name="line.749"></a> +<span class="sourceLineNo">750</span><a name="line.750"></a> +<span class="sourceLineNo">751</span> /**<a name="line.751"></a> +<span class="sourceLineNo">752</span> * Comparator for time-aware compaction. SeqId is still the first<a name="line.752"></a> +<span class="sourceLineNo">753</span> * ordering criterion to maintain MVCC.<a name="line.753"></a> +<span class="sourceLineNo">754</span> */<a name="line.754"></a> +<span class="sourceLineNo">755</span> public static final Comparator<StoreFile> SEQ_ID_MAX_TIMESTAMP =<a name="line.755"></a> +<span class="sourceLineNo">756</span> Ordering.compound(ImmutableList.of(<a name="line.756"></a> +<span class="sourceLineNo">757</span> Ordering.natural().onResultOf(new GetSeqId()),<a name="line.757"></a> +<span class="sourceLineNo">758</span> Ordering.natural().onResultOf(new GetMaxTimestamp()),<a name="line.758"></a> +<span class="sourceLineNo">759</span> Ordering.natural().onResultOf(new GetFileSize()).reverse(),<a name="line.759"></a> +<span class="sourceLineNo">760</span> Ordering.natural().onResultOf(new GetBulkTime()),<a name="line.760"></a> +<span class="sourceLineNo">761</span> Ordering.natural().onResultOf(new GetPathName())<a name="line.761"></a> +<span class="sourceLineNo">762</span> ));<a name="line.762"></a> +<span class="sourceLineNo">763</span><a name="line.763"></a> +<span class="sourceLineNo">764</span> private static class GetSeqId implements Function<StoreFile, Long> {<a name="line.764"></a> +<span class="sourceLineNo">765</span> @Override<a name="line.765"></a> +<span class="sourceLineNo">766</span> public Long apply(StoreFile sf) {<a name="line.766"></a> +<span class="sourceLineNo">767</span> return sf.getMaxSequenceId();<a name="line.767"></a> +<span class="sourceLineNo">768</span> }<a name="line.768"></a> +<span class="sourceLineNo">769</span> }<a name="line.769"></a> +<span class="sourceLineNo">770</span><a name="line.770"></a> +<span class="sourceLineNo">771</span> private static class GetFileSize implements Function<StoreFile, Long> {<a name="line.771"></a> +<span class="sourceLineNo">772</span> @Override<a name="line.772"></a> +<span class="sourceLineNo">773</span> public Long apply(StoreFile sf) {<a name="line.773"></a> +<span class="sourceLineNo">774</span> if (sf.getReader() != null) {<a name="line.774"></a> +<span class="sourceLineNo">775</span> return sf.getReader().length();<a name="line.775"></a> +<span class="sourceLineNo">776</span> } else {<a name="line.776"></a> +<span class="sourceLineNo">777</span> // the reader may be null for the compacted files and if the archiving<a name="line.777"></a> +<span class="sourceLineNo">778</span> // had failed.<a name="line.778"></a> +<span class="sourceLineNo">779</span> return -1L;<a name="line.779"></a> +<span class="sourceLineNo">780</span> }<a name="line.780"></a> +<span class="sourceLineNo">781</span> }<a name="line.781"></a> +<span class="sourceLineNo">782</span> }<a name="line.782"></a> +<span class="sourceLineNo">783</span><a name="line.783"></a> +<span class="sourceLineNo">784</span> private static class GetBulkTime implements Function<StoreFile, Long> {<a name="line.784"></a> +<span class="sourceLineNo">785</span> @Override<a name="line.785"></a> +<span class="sourceLineNo">786</span> public Long apply(StoreFile sf) {<a name="line.786"></a> +<span class="sourceLineNo">787</span> if (!sf.isBulkLoadResult()) return Long.MAX_VALUE;<a name="line.787"></a> +<span class="sourceLineNo">788</span> return sf.getBulkLoadTimestamp();<a name="line.788"></a> +<span class="sourceLineNo">789</span> }<a name="line.789"></a> +<span class="sourceLineNo">790</span> }<a name="line.790"></a> +<span class="sourceLineNo">791</span><a name="line.791"></a> +<span class="sourceLineNo">792</span> private static class GetPathName implements Function<StoreFile, String> {<a name="line.792"></a> +<span class="sourceLineNo">793</span> @Override<a name="line.793"></a> +<span class="sourceLineNo">794</span> public String apply(StoreFile sf) {<a name="line.794"></a> +<span class="sourceLineNo">795</span> return sf.getPath().getName();<a name="line.795"></a> +<span class="sourceLineNo">796</span> }<a name="line.796"></a> +<span class="sourceLineNo">797</span> }<a name="line.797"></a> +<span class="sourceLineNo">798</span><a name="line.798"></a> +<span class="sourceLineNo">799</span> private static class GetMaxTimestamp implements Function<StoreFile, Long> {<a name="line.799"></a> +<span class="sourceLineNo">800</span> @Override<a name="line.800"></a> +<span class="sourceLineNo">801</span> public Long apply(StoreFile sf) {<a name="line.801"></a> +<span class="sourceLineNo">802</span> return sf.getMaximumTimestamp() == null? (Long)Long.MAX_VALUE : sf.getMaximumTimestamp();<a name="line.802"></a> +<span class="sourceLineNo">803</span> }<a name="line.803"></a> +<span class="sourceLineNo">804</span> }<a name="line.804"></a> +<span class="sourceLineNo">805</span> }<a name="line.805"></a> +<span class="sourceLineNo">806</span>}<a name="line.806"></a>
