question Re: How can I be sure an HBase Endpoint co-processor is available after I added it via XML configuration in Archives of Support Questions (Read Only)

How can I be sure an HBase Endpoint co-processor is available after I added it via XML configuration

TimothySpann — Mon, 27 Jun 2016 22:01:08 GMT

I have added a custom built Java jar file to the HBase Classpath.

I added to the hbase-site.xml with Ambari.

How can be sure that my endpoint co-processor was available to HBase?

Can I test it via hbase shell?

Re: How can I be sure an HBase Endpoint co-processor is available after I added it via XML configuration

tyu — Mon, 27 Jun 2016 22:33:52 GMT

In region server log, you should observe something similar to the following:

2016-06-16 19:44:10,222 INFO [regionserver/hbase5-merge-normalizer-3.openstacklocal/172.22.78.125:16020] coprocessor.CoprocessorHost: System coprocessor org.apache.hadoop.hbase.security.access.AccessController was loaded successfully with priority (536870911).

If the coprocessor was loaded per table, you can use 'describe' command in shell to verify.

Re: How can I be sure an HBase Endpoint co-processor is available after I added it via XML configuration

TimothySpann — Mon, 27 Jun 2016 23:05:30 GMT

Good Overview

https://community.hortonworks.com/questions/2577/hbase-coprocessor-and-security.html

Doc on Hbase Endpoint Coprocessor

https://www.3pillarglobal.com/insights/hbase-coprocessors#(endpoints-coprocessor)

Introduction

https://blogs.apache.org/hbase/entry/coprocessor_introduction

Re: How can I be sure an HBase Endpoint co-processor is available after I added it via XML configuration

TimothySpann — Tue, 28 Jun 2016 04:02:19 GMT

The coprocessor is not showing up in the logs.

it is registered in the ambari custom hbase-site.xml

The jar files were tried both in the hbase classpath and hbase home

Re: How can I be sure an HBase Endpoint co-processor is available after I added it via XML configuration

tyu — Tue, 28 Jun 2016 04:04:20 GMT

Where is the custom jar located ?

Can you show related snippet from hbase-site.xml ?

Thanks

Re: How can I be sure an HBase Endpoint co-processor is available after I added it via XML configuration

TimothySpann — Tue, 28 Jun 2016 04:32:17 GMT

anyone have a good github hbase coprocessor example with pom

Re: How can I be sure an HBase Endpoint co-processor is available after I added it via XML configuration

jyadav — Tue, 28 Jun 2016 04:34:34 GMT

https://github.com/unicredit/hbase-observer-examples

https://github.com/ueshin/hbase-coprocessors

Re: How can I be sure an HBase Endpoint co-processor is available after I added it via XML configuration

tyu — Tue, 28 Jun 2016 04:48:17 GMT

You can find a ton of hbase coprocessors under:

https://github.com/apache/phoenix