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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2333) Automated anomoly report and anonymous usage statistics collection
Date Wed, 17 Mar 2010 02:03:27 GMT
Automated anomoly report and anonymous usage statistics collection

                 Key: HBASE-2333
                 URL: https://issues.apache.org/jira/browse/HBASE-2333
             Project: Hadoop HBase
          Issue Type: New Feature
            Reporter: Andrew Purtell
            Priority: Minor

Collection of anonymous usage data from users willing to participate can help the project
in several ways:

- Characterization of typical workloads

- Long term trending of various performance metrics across releases

This could be done by having the master collect information from the region servers and itself
over a 24 hour period then send a report to a configured URL, some web service up on *.hbase.org.
The information would be anonymized according to detail put up on the wiki. Each master would
identify itself via a GUID built in part from MAC address. For the above items, only aggregated
statistics are interesting, number of ops/hour/server, where ops are such things as get, put,
scanner.next, split, compact, etc. At the same time, sample HDFS metrics and system metrics
(cpu, ram, wio) over the same interval. 

Later some more involved reporting activities can be considered:

- Trigger based autonomous switch to DEBUG mode and log collection for some period -- like
automated crash reports -- given failure or stress indications.

For this type of activity, table names, keys, and server names would be replaced with hashes
of them, sufficient for event correlation for debugging but using cryptographically strong
one way functions to fully obfuscate details of the application. 

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