Package org.apache.accumulo.server.master.state

Examples of org.apache.accumulo.server.master.state.MergeStats

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   * @param metaDataStateStore
   * @param locations
   * @return
   */
  private MergeStats scan(MockCurrentState state, MetaDataStateStore metaDataStateStore) {
    MergeStats stats = new MergeStats(state.mergeInfo);
    stats.getMergeInfo().setState(MergeState.WAITING_FOR_OFFLINE);
    for (TabletLocationState tss : metaDataStateStore) {
      stats.update(tss.extent, tss.getState(state.onlineTabletServers()), tss.chopped, false);
    }
    return stats;
  }
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              unassigned.clear();
              unloaded = 0;
              eventListener.waitForEvents(TIME_TO_WAIT_BETWEEN_SCANS);
            }
            Text tableId = tls.extent.getTableId();
            MergeStats mergeStats = mergeStatsCache.get(tableId);
            if (mergeStats == null) {
              mergeStatsCache.put(tableId, mergeStats = new MergeStats(getMergeInfo(tls.extent)));
            }
            TabletGoalState goal = getGoalState(tls, mergeStats.getMergeInfo());
            TServerInstance server = tls.getServer();
            TabletState state = tls.getState(currentTServers.keySet());
            stats.update(tableId, state);
            mergeStats.update(tls.extent, state, tls.chopped, !tls.walogs.isEmpty());
            sendChopRequest(mergeStats.getMergeInfo(), state, tls);
            sendSplitRequest(mergeStats.getMergeInfo(), state, tls);
           
            // Always follow through with assignments
            if (state == TabletState.ASSIGNED) {
              goal = TabletGoalState.HOSTED;
            }
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              unassigned.clear();
              unloaded = 0;
              eventListener.waitForEvents(TIME_TO_WAIT_BETWEEN_SCANS);
            }
            Text tableId = tls.extent.getTableId();
            MergeStats mergeStats = mergeStatsCache.get(tableId);
            if (mergeStats == null) {
              mergeStatsCache.put(tableId, mergeStats = new MergeStats(getMergeInfo(tableId)));
            }
            TabletGoalState goal = getGoalState(tls, mergeStats.getMergeInfo());
            TServerInstance server = tls.getServer();
            TabletState state = tls.getState(currentTServers.keySet());
            stats.update(tableId, state);
            mergeStats.update(tls.extent, state, tls.chopped, !tls.walogs.isEmpty());
            sendChopRequest(mergeStats.getMergeInfo(), state, tls);
            sendSplitRequest(mergeStats.getMergeInfo(), state, tls);
           
            // Always follow through with assignments
            if (state == TabletState.ASSIGNED) {
              goal = TabletGoalState.HOSTED;
            }
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              unassigned.clear();
              unloaded = 0;
              eventListener.waitForEvents(TIME_TO_WAIT_BETWEEN_SCANS);
            }
            Text tableId = tls.extent.getTableId();
            MergeStats mergeStats = mergeStatsCache.get(tableId);
            if (mergeStats == null) {
              mergeStatsCache.put(tableId, mergeStats = new MergeStats(getMergeInfo(tableId)));
            }
            TabletGoalState goal = getGoalState(tls, mergeStats.getMergeInfo());
            TServerInstance server = tls.getServer();
            TabletState state = tls.getState(currentTServers.keySet());
            stats.update(tableId, state);
            mergeStats.update(tls.extent, state, tls.chopped, !tls.walogs.isEmpty());
            sendChopRequest(mergeStats.getMergeInfo(), state, tls);
            sendSplitRequest(mergeStats.getMergeInfo(), state, tls);
           
            // Always follow through with assignments
            if (state == TabletState.ASSIGNED) {
              goal = TabletGoalState.HOSTED;
            }
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              unassigned.clear();
              unloaded = 0;
              eventListener.waitForEvents(TIME_TO_WAIT_BETWEEN_SCANS);
            }
            Text tableId = tls.extent.getTableId();
            MergeStats mergeStats = mergeStatsCache.get(tableId);
            if (mergeStats == null) {
              mergeStatsCache.put(tableId, mergeStats = new MergeStats(getMergeInfo(tableId)));
            }
            TabletGoalState goal = getGoalState(tls, mergeStats.getMergeInfo());
            TServerInstance server = tls.getServer();
            TabletState state = tls.getState(currentTServers.keySet());
            stats.update(tableId, state);
            mergeStats.update(tls.extent, state, tls.chopped, !tls.walogs.isEmpty());
            sendChopRequest(mergeStats.getMergeInfo(), state, tls);
            sendSplitRequest(mergeStats.getMergeInfo(), state, tls);
           
            // Always follow through with assignments
            if (state == TabletState.ASSIGNED) {
              goal = TabletGoalState.HOSTED;
            }
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    ColumnFQ.put(m, Constants.METADATA_SPLIT_RATIO_COLUMN, new Value("0.5".getBytes()));
    ColumnFQ.put(m, Constants.METADATA_OLD_PREV_ROW_COLUMN, KeyExtent.encodePrevEndRow(new Text("o")));
    update(connector, m);
   
    // do the state check
    MergeStats stats = scan(state, metaDataStateStore);
    MergeState newState = stats.nextMergeState(connector, state);
    Assert.assertEquals(MergeState.WAITING_FOR_OFFLINE, newState);
   
    // unassign the tablets
    BatchDeleter deleter = connector.createBatchDeleter("!METADATA", Constants.NO_AUTHS, 1000, 1000l, 1000l, 1);
    deleter.fetchColumnFamily(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY);
    deleter.setRanges(Collections.singletonList(new Range()));
    deleter.delete();
   
    // now we should be ready to merge but, we have an inconsistent !METADATA table
    stats = scan(state, metaDataStateStore);
    Assert.assertEquals(MergeState.WAITING_FOR_OFFLINE, stats.nextMergeState(connector, state));
   
    // finish the split
    KeyExtent tablet = new KeyExtent(tableId, new Text("p"), new Text("o"));
    m = tablet.getPrevRowUpdateMutation();
    ColumnFQ.put(m, Constants.METADATA_SPLIT_RATIO_COLUMN, new Value("0.5".getBytes()));
    update(connector, m);
    metaDataStateStore.setLocations(Collections.singletonList(new Assignment(tablet, state.someTServer)));
   
    // onos... there's a new tablet online
    stats = scan(state, metaDataStateStore);
    Assert.assertEquals(MergeState.WAITING_FOR_CHOPPED, stats.nextMergeState(connector, state));
   
    // chop it
    m = tablet.getPrevRowUpdateMutation();
    ColumnFQ.put(m, Constants.METADATA_CHOPPED_COLUMN, new Value("junk".getBytes()));
    update(connector, m);

    stats = scan(state, metaDataStateStore);
    Assert.assertEquals(MergeState.WAITING_FOR_OFFLINE, stats.nextMergeState(connector, state));

    // take it offline
    m = tablet.getPrevRowUpdateMutation();
    Collection<Collection<String>> walogs = Collections.emptyList();
    metaDataStateStore.unassign(Collections.singletonList(new TabletLocationState(tablet, null, state.someTServer, null, walogs, false)));
   
    // now we can split
    stats = scan(state, metaDataStateStore);
    Assert.assertEquals(MergeState.MERGING, stats.nextMergeState(connector, state));

  }
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   * @param metaDataStateStore
   * @param locations
   * @return
   */
  private MergeStats scan(MockCurrentState state, MetaDataStateStore metaDataStateStore) {
    MergeStats stats = new MergeStats(state.mergeInfo);
    stats.getMergeInfo().setState(MergeState.WAITING_FOR_OFFLINE);
    for (TabletLocationState tss : metaDataStateStore) {
      stats.update(tss.extent, tss.getState(state.onlineTabletServers()), tss.chopped, false);
    }
    return stats;
  }
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  • org.apache.accumulo.core.client.Instance
  • org.apache.accumulo.core.client.Scanner
  • org.apache.accumulo.core.data.Key
  • org.apache.accumulo.core.data.KeyExtent
  • org.apache.accumulo.core.data.Range
  • org.apache.accumulo.server.cli.ClientOpts
  • org.apache.accumulo.server.master.Master$TabletGroupWatcher
  • org.apache.accumulo.server.master.TestMergeState
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