Ume, Thank you for your inputs. We update (write) index nightly once a day and use it majorly for reads.
I am wondering how does the latest version of java that you recommend help in my case. Please clarify. -- on a side note,not related to this, could you please reply to my comments on your blog for MMap directory post. On Fri, Dec 12, 2014 at 12:59 PM, Uwe Schindler <u...@thetaphi.de> wrote: > > Hi, > > I noticed, you mentioned "NFS" as filesystem. Lucene does not work > correctly on NFS as file systems, especially when writing to an index > (commits don’t work safely, NRT reopening breaks without correct > DeletionPolicy, FileLocking is broken). Purely reading indexes is fine, but > here NFS is a problem with MMap, because whenever the connection to the NFS > server drops, it may crush the whole JVM or produce strange errors. This > could also be the reason for the error you see here. > > I would recommend to update to 1.7.0_72 or 1.8.0_25. > > Uwe > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > > > -----Original Message----- > > From: Vijay B [mailto:vijay.nip...@gmail.com] > > Sent: Friday, December 12, 2014 6:53 PM > > To: java-user@lucene.apache.org > > Subject: Re: unsafe memory access operation > > > > Uwe, > > > > We never seen these errors before with the same version of java. Would > > you think updating to latest version of 1.7 would get rid of this? > > > > Here is the info you requested: > > > > java version "1.7.0_25" > > Java(TM) SE Runtime Environment (build 1.7.0_25-b15) Java HotSpot(TM) 64- > > Bit Server VM (build 23.25-b01, mixed mode) > > > > On Fri, Dec 12, 2014 at 12:51 PM, Vijay B <vijay.nip...@gmail.com> > wrote: > > > > > > Here is the info you requested: > > > > > > java version "1.7.0_25" > > > Java(TM) SE Runtime Environment (build 1.7.0_25-b15) Java HotSpot(TM) > > > 64-Bit Server VM (build 23.25-b01, mixed mode) > > > > > > > > > > > > On Fri, Dec 12, 2014 at 12:05 PM, Uwe Schindler <u...@thetaphi.de> > > wrote: > > >> > > >> Hi, > > >> > > >> Which Java 7 build number / update level are you using? Those errors > > >> occur easily if you use an outdated JDK version. > > >> > > >> Uwe > > >> > > >> ----- > > >> Uwe Schindler > > >> H.-H.-Meier-Allee 63, D-28213 Bremen > > >> http://www.thetaphi.de > > >> eMail: u...@thetaphi.de > > >> > > >> > -----Original Message----- > > >> > From: Vijay B [mailto:vijay.nip...@gmail.com] > > >> > Sent: Friday, December 12, 2014 5:31 PM > > >> > To: java-user@lucene.apache.org > > >> > Subject: unsafe memory access operation > > >> > > > >> > we are running into this issue for the first time while searching a > > >> lucene index > > >> > hosted on NFS. Once, this error occurs, all subsequent requests > fails. > > >> help > > >> > appreciated. > > >> > > > >> > Our Config: > > >> > 64-bit Java 1.7 (we are making use of MMapDirectory) Lucene > > >> > 4.2.1 > > >> Index > > >> > size: 8GB > > >> > > > >> > Let me know if you need any futher info. > > >> > > > >> > > > >> > java.lang.InternalError: a fault occurred in a recent unsafe memory > > >> access > > >> > operation in compiled Java code > > >> > > > org.apache.lucene.codecs.BlockTreeTermsReader$FieldReader$SegmentTe > > >> > r > > >> > msEnum$Frame.loadBlock(BlockTreeTermsReader.java:2373) > > >> > > > org.apache.lucene.codecs.BlockTreeTermsReader$FieldReader$SegmentTe > > >> > r > > >> > msEnum.seekExact(BlockTreeTermsReader.java:1693) > > >> > org.apache.lucene.index.TermContext.build(TermContext.java:95) > > >> > > > org.apache.lucene.search.TermQuery.createWeight(TermQuery.java:167) > > >> > > > org.apache.lucene.search.BooleanQuery$BooleanWeight.<init>(Bo > > >> > olea > > >> > nQuery.java:187) > > >> > > > org.apache.lucene.search.BooleanQuery.createWeight(BooleanQuery.jav > > >> > a:4 > > >> > 01) > > >> > > > org.apache.lucene.search.IndexSearcher.createNormalizedWeight(Index > > >> > Sea > > >> > rcher.java:664) > > >> > org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:30 > > >> > 9) > > >> > > >> > > >> --------------------------------------------------------------------- > > >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > > >> For additional commands, e-mail: java-user-h...@lucene.apache.org > > >> > > >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > >
