[SOLR-4934] Prevent runtime failure if users use initargs "useCompoundFile" setting on LogMergePolicy or TieredMergePolicy

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.4, 6.0
• Assignee: Chris M. Hostetter
• Reporter: Chris M. Hostetter
• Created: 18/Jun/13 00:57
• Updated: 09/May/16 18:46
• Resolved: 19/Jun/13 17:27

Description

• LUCENE-5038 eliminated setUseCompoundFile(boolean) from the built in MergePolicies
• existing users may have configs that use <mergePolicy> init args to try and call that setter
• we already do some explicit checks for these MergePolices in SolrIndexConfig to deal with legacy syntax
• update the existing logic to remove "useCompoundFile" from the MergePolicy initArgs for these known policies if found, and log a warning.

(NOTE: i don't want to arbitrarily remove "useCompoundFile" from the initArgs regardless of class in case someone has a custom MergePolicy that implements that logic – that would suck)

Issue Links

• is related to: SOLR-4941 useCompoundFile default has changed, simple config option no longer seems to work
• relates to: LUCENE-5038 Don't call MergePolicy / IndexWriter during DWPT Flush