Michael Braun created SOLR-11314:
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Summary: FastCharStream should avoid creating new IOExceptions as
a signaling mechanism
Key: SOLR-11314
URL: https://issues.apache.org/jira/browse/SOLR-11314
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 7.0, 6.6.1, master (8.0)
Reporter: Michael Braun
FastCharStream is used internally by solr query parser classes. It throws a new
IOException to signal the end. However, this is quite expensive relative to
most operations and it shows up very high on samples for extremely high query
cases. The IOException should be a single static instance that can be shared
to avoid the overhead in creation and populating the stack trace, a stack trace
which is never used.
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