Examples with TabletData org.apache.accumulo.tserver.tablet.TabletData used on opensource projects

Example 1 with TabletData

use of org.apache.accumulo.tserver.tablet.TabletData in project accumulo by apache.

the class TabletServer method splitTablet.

private TreeMap<KeyExtent, TabletData> splitTablet(Tablet tablet, byte[] splitPoint) throws IOException {
    long t1 = System.currentTimeMillis();
    TreeMap<KeyExtent, TabletData> tabletInfo = tablet.split(splitPoint);
    if (tabletInfo == null) {
        return null;
    }
    log.info("Starting split: {}", tablet.getExtent());
    statsKeeper.incrementStatusSplit();
    long start = System.currentTimeMillis();
    Tablet[] newTablets = new Tablet[2];
    Entry<KeyExtent, TabletData> first = tabletInfo.firstEntry();
    TabletResourceManager newTrm0 = resourceManager.createTabletResourceManager(first.getKey(), getTableConfiguration(first.getKey()));
    newTablets[0] = new Tablet(TabletServer.this, first.getKey(), newTrm0, first.getValue());
    Entry<KeyExtent, TabletData> last = tabletInfo.lastEntry();
    TabletResourceManager newTrm1 = resourceManager.createTabletResourceManager(last.getKey(), getTableConfiguration(last.getKey()));
    newTablets[1] = new Tablet(TabletServer.this, last.getKey(), newTrm1, last.getValue());
    // roll tablet stats over into tablet server's statsKeeper object as
    // historical data
    statsKeeper.saveMajorMinorTimes(tablet.getTabletStats());
    // lose the reference to the old tablet and open two new ones
    synchronized (onlineTablets) {
        onlineTablets.remove(tablet.getExtent());
        onlineTablets.put(newTablets[0].getExtent(), newTablets[0]);
        onlineTablets.put(newTablets[1].getExtent(), newTablets[1]);
    }
    // tell the master
    enqueueMasterMessage(new SplitReportMessage(tablet.getExtent(), newTablets[0].getExtent(), new Text("/" + newTablets[0].getLocation().getName()), newTablets[1].getExtent(), new Text("/" + newTablets[1].getLocation().getName())));
    statsKeeper.updateTime(Operation.SPLIT, start, 0, false);
    long t2 = System.currentTimeMillis();
    log.info("Tablet split: {} size0 {} size1 {} time {}ms", tablet.getExtent(), newTablets[0].estimateTabletSize(), newTablets[1].estimateTabletSize(), (t2 - t1));
    return tabletInfo;
}