[GitHub] [fluo-muchos] karthick-rn commented on a change in pull request #327: Configure Job history server

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karthick-rn commented on a change in pull request #327: Configure Job history server
URL: https://github.com/apache/fluo-muchos/pull/327#discussion_r387980543
 
 

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 File path: ansible/roles/hadoop/tasks/start-jhs.yml
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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.
+#
+
+- name: Check if JobHistoryServer is running
+  shell: jps | grep "JobHistoryServer" | grep -v grep
 
 Review comment:
   @ctubbsii you're right! Actually the `grep -v grep` part is not required. I'll remove from this play and also from the `start-zookeeper.yml` in the new commit. Thanks!
   
   @keith-turner, Currently, `jps` command shows the information from the JVM. Even if the /tmp directory was cleared we are still safe as the tool doesn't read from the PID files. I have also tested this manually and it works.
   

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