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https://issues.apache.org/jira/browse/DRILL-4258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15241869#comment-15241869
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ASF GitHub Bot commented on DRILL-4258:
---------------------------------------
Github user sudheeshkatkam commented on a diff in the pull request:
https://github.com/apache/drill/pull/479#discussion_r59787703
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/ops/ThreadStatCollector.java
---
@@ -0,0 +1,124 @@
+/**
+ * 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.drill.exec.ops;
+
+import com.carrotsearch.hppc.LongObjectHashMap;
+import com.carrotsearch.hppc.procedures.LongObjectProcedure;
+
+import java.lang.management.ManagementFactory;
+import java.lang.management.ThreadMXBean;
+import java.util.AbstractMap.SimpleEntry;
+import java.util.Deque;
+import java.util.Iterator;
+import java.util.Map.Entry;
+import java.util.concurrent.ConcurrentLinkedDeque;
+
+public class ThreadStatCollector implements Runnable {
--- End diff --
There is a thread (`WorkManager.StatusThread`) that does periodic tasks
(currently updates fragment statuses), how about we add this as another task?
> Create New SYS tables: cpu, queries, fragments, threads, threadtraces,
> connections
> ----------------------------------------------------------------------------------
>
> Key: DRILL-4258
> URL: https://issues.apache.org/jira/browse/DRILL-4258
> Project: Apache Drill
> Issue Type: New Feature
> Components: Execution - Monitoring
> Reporter: Jacques Nadeau
> Assignee: Jacques Nadeau
>
> cpu: Drillbit, # Cores, CPU consumption (with different windows?)
> queries: Foreman, QueryId, User, SQL, Start Time, rows processed, query plan,
> # nodes involved, number of running fragments, memory consumed
> fragments: Drillbit, queryid, major fragmentid, minorfragmentid, coordinate,
> memory usage, rows processed, start time
> threads: name, priority, state, id, thread-level cpu stats
> threadtraces: threads, stack trace
> connections: client, server, type, establishedDate, messagesSent, bytesSent
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