org.apache.hadoop.hive.ql.hooks.PostExecTezSummaryPrinter Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hive.ql.hooks;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.ql.QueryPlan;
import org.apache.hadoop.hive.ql.exec.Utilities;
import org.apache.hadoop.hive.ql.exec.tez.TezTask;
import org.apache.hadoop.hive.ql.session.SessionState;
import org.apache.tez.common.counters.CounterGroup;
import org.apache.tez.common.counters.TezCounter;
import org.apache.tez.common.counters.TezCounters;
/**
* Post execution hook to print hive tez counters to console error stream.
*/
public class PostExecTezSummaryPrinter implements ExecuteWithHookContext {
private static final Logger LOG = LoggerFactory.getLogger(PostExecTezSummaryPrinter.class.getName());
@Override
public void run(HookContext hookContext) throws Exception {
assert (hookContext.getHookType() == HookContext.HookType.POST_EXEC_HOOK);
HiveConf conf = hookContext.getConf();
if (!"tez".equals(HiveConf.getVar(conf, HiveConf.ConfVars.HIVE_EXECUTION_ENGINE))) {
return;
}
LOG.info("Executing post execution hook to print tez summary..");
SessionState ss = SessionState.get();
SessionState.LogHelper console = ss.getConsole();
QueryPlan plan = hookContext.getQueryPlan();
if (plan == null) {
return;
}
List rootTasks = Utilities.getTezTasks(plan.getRootTasks());
for (TezTask tezTask : rootTasks) {
LOG.info("Printing summary for tez task: " + tezTask.getName());
TezCounters counters = tezTask.getTezCounters();
if (counters != null) {
for (CounterGroup group : counters) {
if ("HIVE".equals(group.getDisplayName())) {
console.printError(tezTask.getId() + " HIVE COUNTERS:");
for (TezCounter counter : group) {
console.printError(" " + counter.getDisplayName() + ": " + counter.getValue());
}
}
}
}
}
}
}