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

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

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    defaultTablet.put(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY, new Text("123456"), new Value("127.0.0.1:1234".getBytes()));
    bw.addMutation(defaultTablet);
    bw.close();
   
    // Read out the TabletLocationStates
    MockCurrentState state = new MockCurrentState(new MergeInfo(new KeyExtent(tableId, new Text("p"), new Text("e")), MergeInfo.Operation.MERGE));
    TCredentials auths = CredentialHelper.create("root", new PasswordToken(new byte[0]), "instance");
   
    // Verify the tablet state: hosted, and count
    MetaDataStateStore metaDataStateStore = new MetaDataStateStore(instance, auths, state);
    int count = 0;
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            Text tableId = tls.extent.getTableId();
            MergeStats mergeStats = mergeStatsCache.get(tableId);
            if (mergeStats == null) {
              mergeStats = currentMerges.get(tableId);
              if (mergeStats == null) {
                mergeStats = new MergeStats(new MergeInfo());
              }
              mergeStatsCache.put(tableId, mergeStats);
            }
            TabletGoalState goal = getGoalState(tls, mergeStats.getMergeInfo());
            TServerInstance server = tls.getServer();
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    }
  }
 
  public MergeInfo getMergeInfo(KeyExtent tablet) {
    if (tablet.isRootTablet())
      return new MergeInfo();
    return getMergeInfo(tablet.getTableId());
  }
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  public MergeInfo getMergeInfo(Text tableId) {
    synchronized (mergeLock) {
      try {
        String path = ZooUtil.getRoot(instance.getInstanceID()) + Constants.ZTABLES + "/" + tableId.toString() + "/merge";
        if (!ZooReaderWriter.getInstance().exists(path))
          return new MergeInfo();
        byte[] data = ZooReaderWriter.getInstance().getData(path, new Stat());
        DataInputBuffer in = new DataInputBuffer();
        in.reset(data, data.length);
        MergeInfo info = new MergeInfo();
        info.readFields(in);
        return info;
      } catch (KeeperException.NoNodeException ex) {
        log.info("Error reading merge state, it probably just finished");
        return new MergeInfo();
      } catch (Exception ex) {
        log.warn("Unexpected error reading merge state", ex);
        return new MergeInfo();
      }
    }
  }
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  public MergeInfo getMergeInfo(Text tableId) {
    synchronized (mergeLock) {
      try {
        String path = ZooUtil.getRoot(instance.getInstanceID()) + Constants.ZTABLES + "/" + tableId.toString() + "/merge";
        if (!ZooReaderWriter.getInstance().exists(path))
          return new MergeInfo();
        byte[] data = ZooReaderWriter.getInstance().getData(path, new Stat());
        DataInputBuffer in = new DataInputBuffer();
        in.reset(data, data.length);
        MergeInfo info = new MergeInfo();
        info.readFields(in);
        return info;
      } catch (KeeperException.NoNodeException ex) {
        log.info("Error reading merge state, it probably just finished");
        return new MergeInfo();
      } catch (Exception ex) {
        log.warn("Unexpected error reading merge state", ex);
        return new MergeInfo();
      }
    }
  }
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  }
 
  @Override
  public Repo<Master> call(long tid, Master master) throws Exception {
    Text tableIdText = new Text(tableId);
    MergeInfo mergeInfo = master.getMergeInfo(tableIdText);
    log.info("removing merge information " + mergeInfo);
    master.clearMergeState(tableIdText);
    Utils.unreserveTable(tableId, tid, true);
    // We can't add entries to the metadata table if it is offline for this merge.
    // If the delete entries for the metadata table were in the root tablet, it would work just fine
    // but all the delete entries go into the end of the metadata table. Work around: add the
    // delete entries after the merge completes.
    if (mergeInfo.getOperation().equals(Operation.MERGE) && tableId.equals(Constants.METADATA_TABLE_ID)) {
      return new MakeDeleteEntries();
    }
    return null;
  }
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    }
  }
 
  public MergeInfo getMergeInfo(KeyExtent tablet) {
    if (tablet.isRootTablet())
      return new MergeInfo();
    return getMergeInfo(tablet.getTableId());
  }
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  public MergeInfo getMergeInfo(Text tableId) {
    synchronized (mergeLock) {
      try {
        String path = ZooUtil.getRoot(instance.getInstanceID()) + Constants.ZTABLES + "/" + tableId.toString() + "/merge";
        if (!ZooReaderWriter.getInstance().exists(path))
          return new MergeInfo();
        byte[] data = ZooReaderWriter.getInstance().getData(path, new Stat());
        DataInputBuffer in = new DataInputBuffer();
        in.reset(data, data.length);
        MergeInfo info = new MergeInfo();
        info.readFields(in);
        return info;
      } catch (KeeperException.NoNodeException ex) {
        log.info("Error reading merge state, it probably just finished");
        return new MergeInfo();
      } catch (Exception ex) {
        log.warn("Unexpected error reading merge state", ex);
        return new MergeInfo();
      }
    }
  }
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        throw new ThriftTableOperationException(tableId, null, TableOperation.MERGE, TableOperationExceptionType.BAD_RANGE,
            "start row must be less than end row");
   
    env.mustBeOnline(tableId);
   
    MergeInfo info = env.getMergeInfo(tableIdText);
   
    if (info.getState() == MergeState.NONE) {
      KeyExtent range = new KeyExtent(tableIdText, end, start);
      env.setMergeState(new MergeInfo(range, op), MergeState.STARTED);
    }
   
    return new TableRangeOpWait(tableId);
  }
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  @Override
  public void undo(long tid, Master env) throws Exception {
    // Not sure this is a good thing to do. The Master state engine should be the one to remove it.
    Text tableIdText = new Text(tableId);
    MergeInfo mergeInfo = env.getMergeInfo(tableIdText);
    if (mergeInfo.getState() != MergeState.NONE)
      log.info("removing merge information " + mergeInfo);
    env.clearMergeState(tableIdText);
    Utils.unreserveTable(tableId, tid, true);
  }
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Related Classes of org.apache.accumulo.server.master.state.MergeInfo

  • org.apache.accumulo.core.data.KeyExtent
  • org.apache.accumulo.master.Master
  • org.apache.accumulo.master.state.MergeInfoTest
  • org.apache.accumulo.master.state.MergeStats
  • org.apache.accumulo.master.tableOps.TableRangeOp
  • org.apache.accumulo.master.tableOps.TableRangeOpWait
  • org.apache.accumulo.master.TabletGroupWatcher
  • org.apache.accumulo.master.TestMergeState
  • org.apache.accumulo.server.master.Master
  • org.apache.accumulo.server.master.Master$TabletGroupWatcher
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