Ivan Martynov created AMBARI-25505: -------------------------------------- Summary: New version of isilon-onefs-mpack (1.0.3) Key: AMBARI-25505 URL: https://issues.apache.org/jira/browse/AMBARI-25505 Project: Ambari Issue Type: Improvement Components: contrib Affects Versions: trunk, 2.7.0 Environment: HDP versions started from "2.6"
Ambari started from version "2.7" Reporter: Ivan Martynov Fix For: trunk, 2.7.0 This issue is going under the direction of Dell Technologies. We are going to change the code of isilon-onefs-mpack (+[https://github.com/apache/ambari/tree/trunk/contrib/management-packs/isilon-onefs-mpack]+). The problem is that a new feature of HBase 2 (AsyncFSWAL) causes worse performance with OneFS. We need to disable this in the Ambari management pack by setting the property name: "hbase.wal.provider" with value: "filesystem" for HBASE. The way to change the property has been already introduced at: [https://jira.apache.org/jira/browse/HBASE-15536] In section about how to disable AsyncFSWAL: {quote}> ...add this in hbase-site.xml > \{code} > <property> > <name>hbase.wal.provider</name> > <value>filesystem</value> > </property> > \{code} {quote} We are going to issue a new version of isilon-onefs-mpack (1.0.3) where we will have some code lines which add this property to HBASE settings. Change of property is applied automatically after installation of HBASE service and installing a new version of mpack. Now our code change relates to one file of code: service_advisor.py, other changes are cosmetic (version numbering and comments). As well we are going to port the code to all necessary branches of Ambari of older versions which support isilon-onefs-mpack. Business Justification: The problem we are working on is that a new feature of HBase 2 (AsyncFSWAL) causes worse performance with OneFS. Some Isilon customers which use HBASE with Ambari with OneFS suffer from this problem. The fix should help these customers. Available Maintenance Resources: HDFS team of Dell Isilon supports Ambari mpack project. Impact: Improve interaction of Isilon with Hadoop -- This message was sent by Atlassian Jira (v8.3.4#803005)