Shawn Heisey created SOLR-9635:
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Summary: Implement Solr as two java processes -- one process to
manage the other.
Key: SOLR-9635
URL: https://issues.apache.org/jira/browse/SOLR-9635
Project: Solr
Issue Type: New Feature
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Shawn Heisey
One idea that Mark Miller mentioned some time ago that I really like is the
idea of implementing Solr as two java processes, with one managing the other.
When I think about this idea, what I imagine is a manager process with a *very*
small heap (I'm thinking single-digit megabytes) that is responsible for
starting a separate Solr process with configured values for many different
options, which would include the heap size.
Basically, the manager process would replace most of bin/solr as we know it,
would be able to restart a crashed Solr, and the admin UI could have options
for changing heap size, restarting Solr, and other things that are currently
impossible. It is likely that this idea would absorb or replace the SolrCLI
class.
Initially, I intend this issue for discussion, and if the idea looks workable,
then we can work towards implementation. There are plenty of bikesheds to
paint as we work the details. I have some preliminary ideas about some parts
of it, which I will discuss in comments.
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