Index: org/apache/hadoop/hbase/regionserver/HRegionServer.java =================================================================== --- org/apache/hadoop/hbase/regionserver/HRegionServer.java (revision 1136794) +++ org/apache/hadoop/hbase/regionserver/HRegionServer.java (working copy) @@ -1032,12 +1032,25 @@ */ private static class MajorCompactionChecker extends Chore { private final HRegionServer instance; + private int majorCompactPriority; MajorCompactionChecker(final HRegionServer h, final int sleepTime, final Stoppable stopper) { super("MajorCompactionChecker", sleepTime, h); this.instance = h; LOG.info("Runs every " + sleepTime + "ms"); + + /* + * MajorCompactPriority configurable + * It's better to setting MajorCompactPriority between 1 and + * hbase.hstore.blockingStoreFiles - hbase.hstore.compactionThreshold + * If no setting this, it will get value of hbase.hstore.blockingStoreFiles, + * and the compact will use it's default priority as + * blockingStoreFileCount - storefiles.size + */ + majorCompactPriority = this.instance.conf.getInt( + "hbase.regionserver.compactionChecker.majorCompactPriority", + this.instance.conf.getInt("hbase.hstore.blockingStoreFiles", 7)); } @Override @@ -1046,8 +1059,16 @@ try { if (r != null && r.isMajorCompaction()) { // Queue a compaction. Will recognize if major is needed. - this.instance.compactSplitThread.requestCompaction(r, getName() - + " requests major compaction"); + if(majorCompactPriority == this.instance.conf.getInt( + "hbase.hstore.blockingStoreFiles", 7) || + majorCompactPriority > r.getCompactPriority()){ + this.instance.compactSplitThread.requestCompaction(r, getName() + + " requests major compaction use default priority"); + } else { + this.instance.compactSplitThread.requestCompaction(r, getName() + + " requests major compaction use configured priority", + this.majorCompactPriority); + } } } catch (IOException e) { LOG.warn("Failed major compaction check on " + r, e);