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https://issues.apache.org/jira/browse/TAJO-2022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15059708#comment-15059708
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ASF GitHub Bot commented on TAJO-2022:
--------------------------------------
Github user jinossy commented on a diff in the pull request:
https://github.com/apache/tajo/pull/913#discussion_r47749200
--- Diff:
tajo-core/src/main/java/org/apache/tajo/master/AsyncTaskService.java ---
@@ -0,0 +1,108 @@
+/**
+ * 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.tajo.master;
--- End diff --
How about changing the package to `org.apache.tajo.io` ? because I do like
to change the thread executors in QM
> Add AsyncTaskServer to TajoMaster
> ---------------------------------
>
> Key: TAJO-2022
> URL: https://issues.apache.org/jira/browse/TAJO-2022
> Project: Tajo
> Issue Type: Improvement
> Components: TajoMaster
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Priority: Minor
> Fix For: 0.12.0, 0.11.1
>
>
> TajoMaster performs various tasks for query lifetime, and the tasks are
> likely to be easily delayed. They sometimes may be the main cause of
> unnecessary blocking problems. My patch adds AsyncTaskServer to run delayed
> tasks in an asynchronous way.
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