Thanks for the reply. I believe your initial thought is probably the correct one!
Thanks, Andrew -----Original Message----- From: "Palmer, Andrew MMI Woking" <[EMAIL PROTECTED]> Sent: Aug 15, 2005 12:03 PM To: java-user@lucene.apache.org, Andrew Boyd <[EMAIL PROTECTED]> Subject: RE: QueryParser Exceptions only under load? Andrew, My initial thought is that you are reusing the QueryParser for each of the requests. It is not a thread safe object. I was getting similar problems and changing the way that I used the QueryParser fixed it. This was on 1.4.3 so it might be different. Andrew -----Original Message----- From: Andrew Boyd [mailto:[EMAIL PROTECTED] Sent: 15 August 2005 16:54 To: java-user@lucene.apache.org Subject: QueryParser Exceptions only under load? Hi all, I'm running lucene 1.9-rc with jdk 1.5/5.0 on JBoss 3.6 with tomcat 5.0. I'm using JMeter to do my load testing. I'm getting several different exceptions (NullPointer, ArrayIndexOutofBounds and ParseException) from QueryParser when I simulate 5 users (threads in JMeter)with no pausing between http queries. The exceptions are sporatic meaning I had to run it about 10 or more times so I could copy the stacktraces for you: ///// NullPointer 10:40:26,266 ERROR [Utils] QueryString : bomb 10:40:26,282 INFO [STDOUT] java.lang.NullPointerException 10:40:26,282 INFO [STDOUT] at java.lang.String.<init>(String.java:205) 10:40:26,282 INFO [STDOUT] at org.apache.lucene.queryParser.FastCharStream.GetImage(Unknown Source) 10:40:26,282 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParserTokenManager.jjFillToken(Unknow n Source) 10:40:26,282 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParserTokenManager.getNextToken(Unkno wn Source) 10:40:26,282 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.jj_ntk(Unknown Source) 10:40:26,282 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.Modifiers(Unknown Source) 10:40:26,282 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.Query(Unknown Source) 10:40:26,282 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.parse(Unknown Source) 10:40:26,282 INFO [STDOUT] at net.bbtech.kat.search.BaseSearchType.getQuery(BaseSearchType.java:60) /////ArrayIndexOutOfBoundsException 10:43:19,972 ERROR [Utils] QueryString : mines playgrounds 10:43:19,988 INFO [STDOUT] java.lang.ArrayIndexOutOfBoundsException: -1 10:43:19,988 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParserTokenManager.jjMoveNfa_3(Unknow n Source) 10:43:19,988 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParserTokenManager.jjMoveStringLitera lDfa0_3(Unknown Source) 10:43:19,988 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParserTokenManager.getNextToken(Unkno wn Source) 10:43:19,988 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.jj_scan_token(Unknown Source) 10:43:19,988 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.jj_3_1(Unknown Source) 10:43:19,988 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.jj_2_1(Unknown Source) 10:43:19,988 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.Clause(Unknown Source) 10:43:19,988 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.Query(Unknown Source) 10:43:19,988 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.parse(Unknown Source) 10:43:19,988 INFO [STDOUT] at net.bbtech.kat.search.BaseSearchType.getQuery(BaseSearchType.java:60) 10:47:58,167 ERROR [Utils] QueryString : explosives camp 10:47:58,494 INFO [STDOUT] org.apache.lucene.queryParser.ParseException: Encountered "<EOF>" at line 1, column 4. Was expecting one of: <AND> ... <OR> ... <NOT> ... "+" ... "-" ... "(" ... "^" ... <QUOTED> ... <TERM> ... <FUZZY_SLOP> ... <PREFIXTERM> ... <WILDTERM> ... "[" ... "{" ... <NUMBER> ... ":" ... 10:47:58,494 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.generateParseException(Unknown Source) 10:47:58,494 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.jj_consume_token(Unknown Source) 10:47:58,494 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.Clause(Unknown Source) 10:47:58,494 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.Query(Unknown Source) 10:47:58,525 INFO [STDOUT] at org.apache.lucene.queryParser.QueryParser.parse(Unknown Source) 10:47:58,541 INFO [STDOUT] at net.bbtech.kat.search.BaseSearchType.getQuery(BaseSearchType.java:66) My load test is running on the same box as my search engine a Thinkpad G41 with a P4 3.33GHz with 1.5 GB of RAM. The queries are the same whether I'm running one user or 5 users. I expect that these exceptions are happining just because of the load but I thought I'd post them to get comments recomendations? Thanks, Andrew Andrew Boyd Software Architect Sun Certified J2EE Architect B&B Technical Services Inc. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
