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

Class org.apache.hadoop.hbase.client.Admin

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

org.apache.hadoop.hbase.client.Admin.move()
Move the region r to dest. @param encodedRegionName The encoded region name; i.e. the hash that makes up the region namesuffix: e.g. if regionname is TestTable,0094429456,1289497600452.527db22f95c8a9e0116f0cc13c680396., then the encoded region name is: 527db22f95c8a9e0116f0cc13c680396. @param destServerName The servername of the destination regionserver. If passed the empty bytearray 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

      HRegionServer targetServer = cluster.getRegionServer(targetServerNum);
      assertFalse(originServer.equals(targetServer));


      TEST_UTIL.waitUntilAllRegionsAssigned(table.getName());
      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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      putDataAndVerify(table, "r2", FAMILY, "v2", 2);


      TEST_UTIL.waitUntilAllRegionsAssigned(table.getName());
      // 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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          .iterator().next();


      AccessTestAction moveAction = new AccessTestAction() {
        @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 ex) {
        LOG.warn("Move failed, might be caused by other chaos: " + ex.getMessage());
      }
      if (sleepTime > 0) {
        Thread.sleep(sleepTime);

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    LOG.info("Moving " + victimRegions.size() + " regions from " + fromServers.size()
        + " servers to " + toServers.size() + " different servers");
    Admin admin = this.context.getHBaseIntegrationTestingUtility().getHBaseAdmin();
    for (byte[] victimRegion : victimRegions) {
      int targetIx = RandomUtils.nextInt(toServers.size());
      admin.move(victimRegion, Bytes.toBytes(toServers.get(targetIx).getServerName()));
    }
  }


  protected void forceBalancer() throws Exception {
    Admin admin = this.context.getHBaseIntegrationTestingUtility().getHBaseAdmin();

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    LOG.info("Moving " + victimRegions.size() + " regions from " + fromServers.size()
        + " servers to " + toServers.size() + " different servers");
    Admin admin = this.context.getHBaseIntegrationTestingUtility().getHBaseAdmin();
    for (byte[] victimRegion : victimRegions) {
      int targetIx = RandomUtils.nextInt(toServers.size());
      admin.move(victimRegion, Bytes.toBytes(toServers.get(targetIx).getServerName()));
    }
  }


  protected void forceBalancer() throws Exception {
    Admin admin = this.context.getHBaseIntegrationTestingUtility().getHBaseAdmin();

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          .iterator().next();


      AccessTestAction moveAction = new AccessTestAction() {
        @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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      HRegionServer targetServer = cluster.getRegionServer(targetServerNum);
      assertFalse(originServer.equals(targetServer));


      TEST_UTIL.waitUntilAllRegionsAssigned(table.getName());
      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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      putDataAndVerify(table, "r2", FAMILY, "v2", 2);


      TEST_UTIL.waitUntilAllRegionsAssigned(table.getName());
      // 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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