Examples of org.apache.hadoop.hbase.client.HBaseAdmin.move()

Class org.apache.hadoop.hbase.client.HBaseAdmin

Examples of org.apache.hadoop.hbase.client.HBaseAdmin.move()

org.apache.hadoop.hbase.client.HBaseAdmin.move()
Move the region r to dest. @param encodedRegionName The encoded region name; i.e. the hash that makesup the region name suffix: e.g. if regionname is TestTable,0094429456,1289497600452.527db22f95c8a9e0116f0cc13c680396., then the encoded region name is: 527db22f95c8a9e0116f0cc13c680396. @param destServerName The servername of the destination regionserver. Ifpassed the empty byte array we'll assign to a random server. A server name is made of host, port and startcode. Here is an example: host187.example.com,60020,1289493121758 @throws UnknownRegionException Thrown if we can't find a region namedencodedRegionName @throws ZooKeeperConnectionException @throws MasterNotRunningException

      LOG.info("Moving " + victimRegions.size() + " regions from " + victimServers.size()
          + " servers to " + targetServers.size() + " different servers");
      HBaseAdmin admin = this.context.getHaseIntegrationTestingUtility().getHBaseAdmin();
      for (byte[] victimRegion : victimRegions) {
        int targetIx = random.nextInt(targetServers.size());
        admin.move(victimRegion, targetServers.get(targetIx));
      }
    }
  }


  public static class ForceBalancerAction extends Action {

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    HRegionServer regionServer1 = UTIL.getMiniHBaseCluster().getRegionServer(0);
    HRegionServer regionServer2 = UTIL.getMiniHBaseCluster().getRegionServer(1);


    for (HRegionInfo hRegionInfo : rs1) {
      admin.move(hRegionInfo.getEncodedNameAsBytes(),
        Bytes.toBytes(regionServer2.getServerName().getServerName()));
    }


    // for (HRegionInfo hRegionInfo : rs2) {
    // admin.move(hRegionInfo.getEncodedNameAsBytes(), Bytes

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    for (HRegionInfo hRegionInfo : regionsOfIndexTable1) {


      int originServerNum = UTIL.getMiniHBaseCluster().getServerWith(hRegionInfo.getRegionName());
      int targetServerNum = 2 - 1 - originServerNum;
      HRegionServer targetServer = UTIL.getMiniHBaseCluster().getRegionServer(targetServerNum);
      admin.move(hRegionInfo.getEncodedNameAsBytes(),
        Bytes.toBytes(targetServer.getServerName().getServerName()));


    }


    // Scan should be successful

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          .iterator().next();


      PrivilegedExceptionAction moveAction = new PrivilegedExceptionAction() {
        @Override
        public Object run() throws Exception {
          admin.move(firstRegion.getKey().getEncodedNameAsBytes(),
              Bytes.toBytes(newRs.getServerName().getServerName()));
          return null;
        }
      };
      SUPERUSER.runAs(moveAction);

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        assertTrue(rsToBeKilled != null);
        
        regions = admin.getTableRegions(indexTable);
        final HRegionInfo indexRegion = regions.get(0);
        final ServerName dstRS = rsToBeKilled;
        admin.move(indexRegion.getEncodedNameAsBytes(), Bytes.toBytes(rsToBeKilled.getServerName()));
        
        long started = System.currentTimeMillis();
        while(true) {
            ServerName sn = cluster.getServerHoldingRegion(indexRegion.getRegionName());
            if (sn != null && sn.equals(dstRS)) {

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          .iterator().next();


      PrivilegedExceptionAction moveAction = new PrivilegedExceptionAction() {
        @Override
        public Object run() throws Exception {
          admin.move(firstRegion.getKey().getEncodedNameAsBytes(),
              Bytes.toBytes(newRs.getServerName().getServerName()));
          return null;
        }
      };
      SUPERUSER.runAs(moveAction);

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        && !destServerName.equals(serverName));


      TEST_UTIL.deleteTable(table);


      try {
        admin.move(hri.getEncodedNameAsBytes(),
          Bytes.toBytes(destServerName.getServerName()));
        fail("We should not find the region");
      } catch (IOException ioe) {
        assertTrue(ioe instanceof UnknownRegionException);
      }

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    for (HRegionInfo regionInfo:regions) {
      try {
        String destServerName =
          servers[RandomUtils.nextInt(servers.length)].getServerName();
        LOG.debug("Moving " + regionInfo.getRegionNameAsString() + " to " + destServerName);
        admin.move(regionInfo.getEncodedNameAsBytes(), Bytes.toBytes(destServerName));
      } catch (Exception e) {
        LOG.debug("Error moving region", e);
      }
      if (sleepTime > 0) {
        Thread.sleep(sleepTime);

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      HRegionServer originServer = cluster.getRegionServer(originServerNum);
      int targetServerNum = (originServerNum + 1) % NUM_RS;
      HRegionServer targetServer = cluster.getRegionServer(targetServerNum);
      assertFalse(originServer.equals(targetServer));
      Log.info("Moving " + regionInfo.getEncodedName() + " to " + targetServer.getServerName());
      hbaseAdmin.move(regionInfo.getEncodedNameAsBytes(),
          Bytes.toBytes(targetServer.getServerName().getServerName()));
      do {
        Thread.sleep(1);
      } while (cluster.getServerWith(regionInfo.getRegionName()) == originServerNum);

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      Log.info("Loading r2 to v2 into " + Bytes.toString(TABLENAME));
      putDataAndVerify(table, "r2", FAMILY, "v2", 2);


      // Move region to origin server
      Log.info("Moving " + regionInfo.getEncodedName() + " to " + originServer.getServerName());
      hbaseAdmin.move(regionInfo.getEncodedNameAsBytes(),
          Bytes.toBytes(originServer.getServerName().getServerName()));
      do {
        Thread.sleep(1);
      } while (cluster.getServerWith(regionInfo.getRegionName()) == targetServerNum);

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