org.apache.hadoop.hive.ql.hooks.PostExecWMEventsSummaryPrinter Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package org.apache.hadoop.hive.ql.hooks;
import java.util.List;
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.hadoop.hive.ql.wm.WmContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Post execution (success or failure) hook to print hive workload manager events summary.
*/
public class PostExecWMEventsSummaryPrinter implements ExecuteWithHookContext {
private static final Logger LOG = LoggerFactory.getLogger(PostExecWMEventsSummaryPrinter.class.getName());
@Override
public void run(HookContext hookContext) throws Exception {
assert (hookContext.getHookType() == HookContext.HookType.POST_EXEC_HOOK ||
hookContext.getHookType() == HookContext.HookType.ON_FAILURE_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 workload manager events summary..");
SessionState.LogHelper console = SessionState.getConsole();
QueryPlan plan = hookContext.getQueryPlan();
if (plan == null) {
return;
}
List rootTasks = Utilities.getTezTasks(plan.getRootTasks());
for (TezTask tezTask : rootTasks) {
WmContext wmContext = tezTask.getDriverContext().getCtx().getWmContext();
if (wmContext != null) {
wmContext.printJson(console);
wmContext.shortPrint(console);
}
}
}
}