[SOLR-7391] Use a time based expiration cache for one off hdfs FileSystem instances.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.2, 6.0
• Component/s: hdfs
• Assignee: Mark Miller
• Reporter: Mark Miller
• Created: 14/Apr/15 21:49
• Updated: 18/Jan/18 15:51
• Resolved: 26/Apr/15 13:09

Description

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.

Issue Links

• is related to: SOLR-11873 Use time based expiration cache in all places in HdfsDirectoryFactory