Examples with HMaster org.apache.hadoop.hbase.master.HMaster used on opensource projects

Example 71 with HMaster

use of org.apache.hadoop.hbase.master.HMaster in project hbase by apache.

the class MasterStatusServlet method doGet.

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
    HMaster master = (HMaster) getServletContext().getAttribute(HMaster.MASTER);
    assert master != null : "No Master in context!";
    response.setContentType("text/html");
    Configuration conf = master.getConfiguration();
    Map<String, Integer> frags = getFragmentationInfo(master, conf);
    ServerName metaLocation = null;
    List<ServerName> servers = null;
    Set<ServerName> deadServers = null;
    if (master.isActiveMaster()) {
        metaLocation = getMetaLocationOrNull(master);
        ServerManager serverManager = master.getServerManager();
        if (serverManager != null) {
            deadServers = serverManager.getDeadServers().copyServerNames();
            servers = serverManager.getOnlineServersList();
        }
    }
    MasterStatusTmpl tmpl = new MasterStatusTmpl().setFrags(frags).setMetaLocation(metaLocation).setServers(servers).setDeadServers(deadServers).setCatalogJanitorEnabled(master.isCatalogJanitorEnabled());
    if (request.getParameter("filter") != null)
        tmpl.setFilter(request.getParameter("filter"));
    if (request.getParameter("format") != null)
        tmpl.setFormat(request.getParameter("format"));
    tmpl.render(response.getWriter(), master);
}

Example 72 with HMaster

use of org.apache.hadoop.hbase.master.HMaster in project hbase by apache.

the class ReplicationLogCleaner method init.

@Override
public void init(Map<String, Object> params) {
    super.init(params);
    try {
        if (MapUtils.isNotEmpty(params)) {
            Object master = params.get(HMaster.MASTER);
            if (master != null && master instanceof HMaster) {
                zkw = ((HMaster) master).getZooKeeper();
                shareZK = true;
            }
        }
        if (zkw == null) {
            zkw = new ZKWatcher(getConf(), "replicationLogCleaner", null);
        }
        this.queueStorage = ReplicationStorageFactory.getReplicationQueueStorage(zkw, getConf());
    } catch (IOException e) {
        LOG.error("Error while configuring " + this.getClass().getName(), e);
    }
}

Example 73 with HMaster

use of org.apache.hadoop.hbase.master.HMaster in project hbase by apache.

the class JVMClusterUtil method createMasterThread.

/**
 * Creates a {@link MasterThread}.
 * Call 'start' on the returned thread to make it run.
 * @param c Configuration to use.
 * @param hmc Class to create.
 * @param index Used distinguishing the object returned.
 * @throws IOException
 * @return Master added.
 */
public static JVMClusterUtil.MasterThread createMasterThread(final Configuration c, final Class<? extends HMaster> hmc, final int index) throws IOException {
    HMaster server;
    try {
        server = hmc.getConstructor(Configuration.class).newInstance(c);
    } catch (InvocationTargetException ite) {
        Throwable target = ite.getTargetException();
        throw new RuntimeException("Failed construction of Master: " + hmc.toString() + ((target.getCause() != null) ? target.getCause().getMessage() : ""), target);
    } catch (Exception e) {
        throw new IOException(e);
    }
    // Needed if a master based registry is configured for internal cluster connections. Here, we
    // just add the current master host port since we do not know other master addresses up front
    // in mini cluster tests.
    c.set(HConstants.MASTER_ADDRS_KEY, Preconditions.checkNotNull(server.getServerName().getAddress()).toString());
    return new JVMClusterUtil.MasterThread(server, index);
}

Example 74 with HMaster

use of org.apache.hadoop.hbase.master.HMaster in project hbase by apache.

the class TestAdmin1 method testMergeRegions.

@Test
public void testMergeRegions() throws Exception {
    final TableName tableName = TableName.valueOf(name.getMethodName());
    TableDescriptor td = TableDescriptorBuilder.newBuilder(tableName).setColumnFamily(ColumnFamilyDescriptorBuilder.of("d")).build();
    byte[][] splitRows = new byte[2][];
    splitRows[0] = new byte[] { (byte) '3' };
    splitRows[1] = new byte[] { (byte) '6' };
    try {
        TEST_UTIL.createTable(td, splitRows);
        TEST_UTIL.waitTableAvailable(tableName);
        List<RegionInfo> tableRegions;
        RegionInfo regionA;
        RegionInfo regionB;
        RegionInfo regionC;
        RegionInfo mergedChildRegion = null;
        // merge with full name
        tableRegions = ADMIN.getRegions(tableName);
        assertEquals(3, ADMIN.getRegions(tableName).size());
        regionA = tableRegions.get(0);
        regionB = tableRegions.get(1);
        regionC = tableRegions.get(2);
        // TODO convert this to version that is synchronous (See HBASE-16668)
        ADMIN.mergeRegionsAsync(regionA.getRegionName(), regionB.getRegionName(), false).get(60, TimeUnit.SECONDS);
        tableRegions = ADMIN.getRegions(tableName);
        assertEquals(2, tableRegions.size());
        for (RegionInfo ri : tableRegions) {
            if (regionC.compareTo(ri) != 0) {
                mergedChildRegion = ri;
                break;
            }
        }
        assertNotNull(mergedChildRegion);
        // Need to wait GC for merged child region is done.
        HMaster services = TEST_UTIL.getHBaseCluster().getMaster();
        CatalogJanitor cj = services.getCatalogJanitor();
        assertTrue(cj.scan() > 0);
        // Wait until all procedures settled down
        while (!services.getMasterProcedureExecutor().getActiveProcIds().isEmpty()) {
            Thread.sleep(200);
        }
        // TODO convert this to version that is synchronous (See HBASE-16668)
        ADMIN.mergeRegionsAsync(regionC.getEncodedNameAsBytes(), mergedChildRegion.getEncodedNameAsBytes(), false).get(60, TimeUnit.SECONDS);
        assertEquals(1, ADMIN.getRegions(tableName).size());
    } finally {
        ADMIN.disableTable(tableName);
        ADMIN.deleteTable(tableName);
    }
}

Example 75 with HMaster

use of org.apache.hadoop.hbase.master.HMaster in project hbase by apache.

the class TestAsyncClusterAdminApi2 method testStop.

@Test
public void testStop() throws Exception {
    HRegionServer rs = TEST_UTIL.getMiniHBaseCluster().getRegionServer(0);
    assertFalse(rs.isStopped());
    admin.stopRegionServer(rs.getServerName()).join();
    assertTrue(rs.isStopped());
    HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
    assertFalse(master.isStopped());
    admin.stopMaster().join();
    assertTrue(master.isStopped());
}