Christopher Tubbs created ACCUMULO-2802:
-------------------------------------------
Summary: Make per-service configuration easier
Key: ACCUMULO-2802
URL: https://issues.apache.org/jira/browse/ACCUMULO-2802
Project: Accumulo
Issue Type: Improvement
Components: gc, master, monitor, trace, tserver
Reporter: Christopher Tubbs
Fix For: 1.7.0
Currently, all server configuration is stored in a monolithic xml file
(accumulo-site.xml).
We should support configuration scoped to the service it is intended to
configure. That means, that there could be a separate configuration file for
each service (gc.conf, tserver.conf, master.conf, monitor.conf, tracer.conf,
etc.), which could be specified with a parameter to the service's main method
(--config <file>) with a sensible default.
Some shared configuration may still be necessary, but that can be easily
satisfied by using commons-configuration, which supports include statements.
Additionally, system properties should override the configuration file, and be
interpolated into it. This can be easily achieved with commons-configuration's
hierarchical configuration.
A monolithic file could still be supported, if the individual files are
concatenated. To ensure this is possible, the service-specific prefixes should
remain, to distinguish between the scopes.
Any implementation of this should be backwards compatible with the monolithic
accumulo-site.xml.
Some benefits of this:
# Consolidated configuration to a single file per service, instead of multiple
command-line parameters per service.
# Allow non-XML configuration options.
# Move away from Hadoop libraries for parsing configuration.
# Allow starting multiple instances of the same service type with different
configuration.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
