Jason Gerlowski created SOLR-18417:
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Summary: Deprecate and Remove PingRequestHandler
Key: SOLR-18417
URL: https://issues.apache.org/jira/browse/SOLR-18417
Project: Solr
Issue Type: Task
Reporter: Jason Gerlowski
Solr has a core-level API called the "PingRequestHandler". This API is meant
to serve as a load-balancer healthcheck, but it has a few surprising quirks.
Most significantly it operates at the core level rather than the node-level, so
it requires load-balancers be aware of Solr's topology to some extent (which of
course, very few off-the-shelf load balancers
are.)
For healthcheck purposes, PingRequestHandler has largely been superseded by the
"System Info Handler" and the aptly named "Healthcheck Handler", which do some
amount of health checking at the node-level.
With PingRequestHandler largely vestigial, it's time to consider its removal.
We should deprecate it in the current major version line (currently 10.x) and
remove it entirely for the next one (currently 11.0).
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