Mark Miller created SOLR-7391:
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Summary: Use a time based expiration cache for one off hdfs
FileSystem instances.
Key: SOLR-7391
URL: https://issues.apache.org/jira/browse/SOLR-7391
Project: Solr
Issue Type: Improvement
Components: s, hdfs
Reporter: Mark Miller
Assignee: Mark Miller
Most FileSystem clients are tied to a SolrCore and long lived, but in some
cases where we don't have SolrCore context we create a short lived hdfs client
object.
Because these instances can be created via user generated actions, we don't
want to be able to create too many of them - they have overhead that does not
make them great candidates for being spun up for a single call.
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