Examples with SimpleRpcScheduler org.apache.hadoop.hbase.ipc.SimpleRpcScheduler used on opensource projects

Example 1 with SimpleRpcScheduler

use of org.apache.hadoop.hbase.ipc.SimpleRpcScheduler in project hbase by apache.

the class TestFastFail method testCallQueueTooBigExceptionDoesntTriggerPffe.

@Test
public void testCallQueueTooBigExceptionDoesntTriggerPffe() throws Exception {
    Admin admin = TEST_UTIL.getAdmin();
    final String tableName = name.getMethodName();
    HTableDescriptor desc = new HTableDescriptor(TableName.valueOf(Bytes.toBytes(tableName)));
    desc.addFamily(new HColumnDescriptor(FAMILY));
    admin.createTable(desc, Bytes.toBytes("aaaa"), Bytes.toBytes("zzzz"), 3);
    Configuration conf = TEST_UTIL.getConfiguration();
    conf.setLong(HConstants.HBASE_CLIENT_OPERATION_TIMEOUT, 100);
    conf.setInt(HConstants.HBASE_CLIENT_PAUSE, 500);
    conf.setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 1);
    conf.setBoolean(HConstants.HBASE_CLIENT_FAST_FAIL_MODE_ENABLED, true);
    conf.setLong(HConstants.HBASE_CLIENT_FAST_FAIL_THREASHOLD_MS, 0);
    conf.setClass(HConstants.HBASE_CLIENT_FAST_FAIL_INTERCEPTOR_IMPL, CallQueueTooBigPffeInterceptor.class, PreemptiveFastFailInterceptor.class);
    final Connection connection = ConnectionFactory.createConnection(conf);
    //Set max call queues size to 0
    SimpleRpcScheduler srs = (SimpleRpcScheduler) TEST_UTIL.getHBaseCluster().getRegionServer(0).getRpcServer().getScheduler();
    Configuration newConf = HBaseConfiguration.create(TEST_UTIL.getConfiguration());
    newConf.setInt("hbase.ipc.server.max.callqueue.length", 0);
    srs.onConfigurationChange(newConf);
    try (Table table = connection.getTable(TableName.valueOf(tableName))) {
        Get get = new Get(new byte[1]);
        table.get(get);
    } catch (Throwable ex) {
    }
    assertEquals("We should have not entered PFFE mode on CQTBE, but we did;" + " number of times this mode should have been entered:", 0, CallQueueTooBigPffeInterceptor.numCallQueueTooBig.get());
    newConf = HBaseConfiguration.create(TEST_UTIL.getConfiguration());
    newConf.setInt("hbase.ipc.server.max.callqueue.length", 250);
    srs.onConfigurationChange(newConf);
}