Solr4.8.0源码分析(13)之LuceneCore的索引修复

 1 192:lib rcf$ java -cp lucene-core-4.8-SNAPSHOT.jar -ea:org.apache.lucene... org.apache.lucene.index.CheckIndex 
 2 
 3 ERROR: index path not specified
 4 
 5 Usage: java org.apache.lucene.index.CheckIndex pathToIndex [-fix] [-crossCheckTermVectors] [-segment X] [-segment Y] [-dir-impl X]
 6 
 7   -fix: actually write a new segments_N file, removing any problematic segments
 8   -crossCheckTermVectors: verifies that term vectors match postings; THIS IS VERY SLOW!
 9   -codec X: when fixing, codec to write the new segments_N file with
10   -verbose: print additional details
11   -segment X: only check the specified segments.  This can be specified multiple
12               times, to check more than one segment, eg ‘-segment _2 -segment _a‘.
13               You can‘t use this with the -fix option
14   -dir-impl X: use a specific FSDirectory implementation. If no package is specified the org.apache.lucene.store package will be used.
15 
16 **WARNING**: -fix should only be used on an emergency basis as it will cause
17 documents (perhaps many) to be permanently removed from the index.  Always make
18 a backup copy of your index before running this!  Do not run this tool on an index
19 that is actively being written to.  You have been warned!
20 
21 Run without -fix, this tool will open the index, report version information
22 and report any exceptions it hits and what action it would take if -fix were
23 specified.  With -fix, this tool will remove any segments that have issues and
24 write a new segments_N file.  This means all documents contained in the affected
25 segments will be removed.
26 
27 This tool exits with exit code 1 if the index cannot be opened or has any
28 corruption, else 0.