I have two index processes. One is an index server, the other is a
search server. The processes run on different machines.
The index server is a single threaded process that reads from the
database and adds
unindexed rows to the index as needed. It sleeps for a couple minutes
between each
batch to allow newly added/updated rows to accumulate.
The searcher process keeps an open cache of IndexSearcher objects and
is multithreaded.
It accepts connections on a tcp port, runs the query and stores the
results in a database.
After a set interval, the server checks to see if the index on disk is
a newer version. If it is,
it loads the index into a new IndexSearcher as a RAMDirectory.
Every once in awhile, the index reader process gets a FileNotFoundException:
20041118 1378 1383 (index number, old version, new version)
[newer version found] Loading index directory into RAM: 20041118
java.io.FileNotFoundException:
/path/omitted/for/obvious/reasons/_4zj6.cfs (No such file or
directory)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:204)
at
org.en.lucene.store.FSInputStream$Descriptor.<init>(FSDirectory.java:376)
at org.en.lucene.store.FSInputStream.<init>(FSDirectory.java:405)
at org.en.lucene.store.FSDirectory.openFile(FSDirectory.java:268)
at org.en.lucene.store.RAMDirectory.<init>(RAMDirectory.java:60)
at org.en.lucene.store.RAMDirectory.<init>(RAMDirectory.java:89)
at
org.en.global.searchserver.UpdateSearchers.createIndexSearchers(Search.java:89)
at org.en.global.searchserver.UpdateSearchers.run(Search.java:54)
the code being called at that point is:
//add the directory to the HashMap of IndexSearchers (dir# => IndexSearcher)
indexSearchers.put(subDirs[i],new IndexSearcher(new
RAMDirectory(indexDir + "/" + subDirs[i])));
The indexes are located on a NFS mountpoint. Could this be the
problem? Or should I be looking elsewhere... Should i just check for
an IOException, and try reloading the index if I get an error?
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