本文整理匯總了Java中org.apache.hadoop.hbase.HBaseTestingUtility.getAllOnlineRegions方法的典型用法代碼示例。如果您正苦於以下問題：Java HBaseTestingUtility.getAllOnlineRegions方法的具體用法？Java HBaseTestingUtility.getAllOnlineRegions怎麽用？Java HBaseTestingUtility.getAllOnlineRegions使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.hadoop.hbase.HBaseTestingUtility的用法示例。
在下文中一共展示了HBaseTestingUtility.getAllOnlineRegions方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: testForCheckingIfEnableAndDisableWorksFineAfterSwitch
import org.apache.hadoop.hbase.HBaseTestingUtility; //導入方法依賴的package包/類
@Test
public void testForCheckingIfEnableAndDisableWorksFineAfterSwitch()
throws Exception {
final int NUM_MASTERS = 2;
final int NUM_RS = 1;
final int NUM_REGIONS_TO_CREATE = 4;
// Start the cluster
log("Starting cluster");
Configuration conf = HBaseConfiguration.create();
HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(conf);
TEST_UTIL.startMiniCluster(NUM_MASTERS, NUM_RS);
MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();
log("Waiting for active/ready master");
cluster.waitForActiveAndReadyMaster();
ZooKeeperWatcher zkw = new ZooKeeperWatcher(conf, "testmasterRestart", null);
HMaster master = cluster.getMaster();
// Create a table with regions
TableName table = TableName.valueOf("tableRestart");
byte[] family = Bytes.toBytes("family");
log("Creating table with " + NUM_REGIONS_TO_CREATE + " regions");
HTable ht = TEST_UTIL.createMultiRegionTable(table, family, NUM_REGIONS_TO_CREATE);
int numRegions = -1;
try (RegionLocator r = ht.getRegionLocator()) {
numRegions = r.getStartKeys().length;
}
numRegions += 1; // catalogs
log("Waiting for no more RIT\n");
blockUntilNoRIT(zkw, master);
log("Disabling table\n");
TEST_UTIL.getHBaseAdmin().disableTable(table);
NavigableSet<String> regions = HBaseTestingUtility.getAllOnlineRegions(cluster);
assertEquals(
"The number of regions for the table tableRestart should be 0 and only"
+ "the catalog and namespace tables should be present.", 2, regions.size());
List<MasterThread> masterThreads = cluster.getMasterThreads();
MasterThread activeMaster = null;
if (masterThreads.get(0).getMaster().isActiveMaster()) {
activeMaster = masterThreads.get(0);
} else {
activeMaster = masterThreads.get(1);
}
activeMaster.getMaster().stop(
"stopping the active master so that the backup can become active");
cluster.hbaseCluster.waitOnMaster(activeMaster);
cluster.waitForActiveAndReadyMaster();
assertTrue("The table should not be in enabled state", cluster.getMaster()
.getAssignmentManager().getTableStateManager().isTableState(
TableName.valueOf("tableRestart"), ZooKeeperProtos.Table.State.DISABLED,
ZooKeeperProtos.Table.State.DISABLING));
log("Enabling table\n");
// Need a new Admin, the previous one is on the old master
Admin admin = new HBaseAdmin(TEST_UTIL.getConfiguration());
admin.enableTable(table);
admin.close();
log("Waiting for no more RIT\n");
blockUntilNoRIT(zkw, master);
log("Verifying there are " + numRegions + " assigned on cluster\n");
regions = HBaseTestingUtility.getAllOnlineRegions(cluster);
assertEquals("The assigned regions were not onlined after master"
+ " switch except for the catalog and namespace tables.",
6, regions.size());
assertTrue("The table should be in enabled state", cluster.getMaster()
.getAssignmentManager().getTableStateManager()
.isTableState(TableName.valueOf("tableRestart"), ZooKeeperProtos.Table.State.ENABLED));
ht.close();
TEST_UTIL.shutdownMiniCluster();
}