Examples of org.hbase.async.PutRequest

org.hbase.async.PutRequest
Puts some data into HBase.
A note on passing {@code byte} arrays in argument
None of the method that receive a {@code byte[]} in argument will copy it.For more info, please refer to the documentation of {@link HBaseRpc}.
A note on passing {@code String}s in argument
All strings are assumed to use the platform's default charset.
A note on passing {@code timestamp}s in argument
HBase orders all the writes based on timestamps from {@code PutRequest}irrespective of the actual order in which they're received or stored by a RegionServer. In other words, if you send a first {@code PutRequest}with timestamp T, and then later send another one for the same table, key, family and qualifier, but with timestamp T - 1, then the second write will look like it was applied before the first one when you read this cell back from HBase. When manually setting timestamps, it is thus strongly recommended to use real UNIX timestamps in milliseconds, e.g. from {@link System#currentTimeMillis}.
If you want to let HBase set the timestamp on a write at the time it's applied within the RegionServer, then use {@link KeyValue#TIMESTAMP_NOW}as a timestamp. The timestamp is set right before being written to the WAL (Write Ahead Log). Note however that this has a subtle consequence: if a write succeeds from the server's point of view, but fails from the client's point of view (maybe because the client got disconnected from the server before the server could acknowledge the write), then if the client retries the write it will create another version of the cell with a different timestamp.

    }
    if (name == null || name.isEmpty()) {
      throw new IllegalArgumentException("Missing name");
    }


    final PutRequest put = new PutRequest(tsdb.uidTable(), 
        UniqueId.stringToUid(uid), FAMILY, 
        (type.toString().toLowerCase() + "_meta").getBytes(CHARSET), 
        UIDMeta.this.getStorageJSON());
    return tsdb.getClient().put(put);
  }

View Full Code Here

    // Update the reverse mapping first, so that if we die before updating
    // the forward mapping we don't run the risk of "publishing" a
    // partially assigned ID.  The reverse mapping on its own is harmless
    // but the forward mapping without reverse mapping is bad.
    try {
      final PutRequest reverse_mapping = new PutRequest(
        table, row, NAME_FAMILY, kind, newnameb);
      hbasePutWithRetry(reverse_mapping, MAX_ATTEMPTS_PUT,
                        INITIAL_EXP_BACKOFF_DELAY);
    } catch (HBaseException e) {
      LOG.error("When trying rename(\"" + oldname
        + "\", \"" + newname + "\") on " + this + ": Failed to update reverse"
        + " mapping for ID=" + Arrays.toString(row), e);
      throw e;
    }


    // Now create the new forward mapping.
    try {
      final PutRequest forward_mapping = new PutRequest(
        table, newnameb, ID_FAMILY, kind, row);
      hbasePutWithRetry(forward_mapping, MAX_ATTEMPTS_PUT,
                        INITIAL_EXP_BACKOFF_DELAY);
    } catch (HBaseException e) {
      LOG.error("When trying rename(\"" + oldname

View Full Code Here

      // a CAS instead to create the KV.
      return client.compareAndSet(reverseMapping(), HBaseClient.EMPTY_ARRAY);
    }


    private PutRequest reverseMapping() {
      return new PutRequest(table, row, NAME_FAMILY, kind, toBytes(name));
    }

View Full Code Here

      state = DONE;
      return client.compareAndSet(forwardMapping(), HBaseClient.EMPTY_ARRAY);
    }


    private PutRequest forwardMapping() {
        return new PutRequest(table, toBytes(name), ID_FAMILY, kind, row);
    }

View Full Code Here

          // verify the name is set locally just to be safe
          if (name == null || name.isEmpty()) {
            local_meta.name = name;
          }
          
          final PutRequest put = new PutRequest(tsdb.uidTable(), 
              UniqueId.stringToUid(uid), FAMILY, 
              (type.toString().toLowerCase() + "_meta").getBytes(CHARSET), 
              local_meta.getStorageJSON());
          return tsdb.getClient().compareAndSet(put, original_meta);
        }

View Full Code Here

                  errors++;
                  correctable++;
                  if (fix) {
                    value = value.clone();  // We're going to change it.
                    value[0] = value[1] = value[2] = value[3] = 0;
                    client.put(new PutRequest(table, kv.key(), kv.family(),
                                              qual, value));
                  } else {
                    LOG.error("Floating point value with 0xFF most significant"
                              + " bytes, probably caused by sign extension bug"
                              + " present in revisions [96908436..607256fc].\n"

View Full Code Here

      }
      
    }
    
    // execute the CAS call to start the callback chain
    final PutRequest put = new PutRequest(tsdb.treeTable(), branch_id, 
        Tree.TREE_FAMILY(), columnQualifier(), toStorageJson());
    return tsdb.getClient().compareAndSet(put, new byte[0])
      .addCallbackDeferring(new LeafStoreCB(this));
  }

View Full Code Here

      base_time = (timestamp - (timestamp % Const.MAX_TIMESPAN));
    }
    
    Bytes.setInt(row, (int) base_time, metrics.width());
    scheduleForCompaction(row, (int) base_time);
    final PutRequest point = new PutRequest(table, row, FAMILY, qualifier, value);
    
    // TODO(tsuna): Add a callback to time the latency of HBase and store the
    // timing in a moving Histogram (once we have a class for this).
    Deferred<Object> result = client.put(point);
    if (!config.enable_realtime_ts() && !config.enable_tsuid_incrementing() && 
        !config.enable_tsuid_tracking() && rt_publisher == null) {
      return result;
    }
    
    final byte[] tsuid = UniqueId.getTSUIDFromKey(row, METRICS_WIDTH, 
        Const.TIMESTAMP_BYTES);
    
    // for busy TSDs we may only enable TSUID tracking, storing a 1 in the
    // counter field for a TSUID with the proper timestamp. If the user would
    // rather have TSUID incrementing enabled, that will trump the PUT
    if (config.enable_tsuid_tracking() && !config.enable_tsuid_incrementing()) {
      final PutRequest tracking = new PutRequest(meta_table, tsuid, 
          TSMeta.FAMILY(), TSMeta.COUNTER_QUALIFIER(), Bytes.fromLong(1));
      client.put(tracking);
    } else if (config.enable_tsuid_incrementing() || config.enable_realtime_ts()) {
      TSMeta.incrementAndGetCounter(TSDB.this, tsuid);
    }

View Full Code Here


  /** Puts the given value into the data table. */
  final Deferred<Object> put(final byte[] key,
                             final byte[] qualifier,
                             final byte[] value) {
    return client.put(new PutRequest(table, key, FAMILY, qualifier, value));
  }

View Full Code Here

        }
        
        // reset the change map so we don't keep writing
        initializeChangedMap();
        
        final PutRequest put = new PutRequest(tsdb.treeTable(), 
            Tree.idToBytes(tree_id), TREE_FAMILY, TREE_QUALIFIER, 
            stored_tree.toStorageJson());
        return tsdb.getClient().compareAndSet(put, original_tree);
      }
    }

View Full Code Here

0 1 2 3 4

TOP

Related Classes of org.hbase.async.PutRequest

HBaseIA.TwitBase.AsyncUsersTool

net.opentsdb.core.IncomingDataPoints

net.opentsdb.core.TSDB

net.opentsdb.meta.Annotation

net.opentsdb.meta.NameCB$StoreUIDMeta

net.opentsdb.meta.StoreCB

net.opentsdb.meta.TSMeta

net.opentsdb.meta.UIDMeta

net.opentsdb.meta.ValidateCB$StoreCB

net.opentsdb.tools.Fsck

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.

Examples of org.hbase.async.PutRequest

A note on passing {@code byte} arrays in argument

A note on passing {@code String}s in argument

A note on passing {@code timestamp}s in argument

Related Classes of org.hbase.async.PutRequest