Server Hungs with Lucene 2.3.1

[Funtick <fu...@efendi.ca>]

I verified thread dump several times, there are a lot of messages like

waiting for monitor entry ...
at org.apache.lucene.index.SegmentReader.norms(SegmentReader.java:790)

It corresponds to method call:   
// returns fake norms if norms aren't available
  public synchronized byte[] norms(String field) throws IOException {
    ensureOpen();
    byte[] bytes = getNorms(field);
    if (bytes==null) bytes=fakeNorms();
    return bytes;
  }


It didn't happen before (when I used CRON-Replication each night, and caches
were rewarmed daily); it happens now almost each day (after significant
loads generated by search engines).

I'll send Thread Dump later, do not have access to logs right now...

Thanks


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Re: Server Hungs with Lucene 2.3.1

[Funtick <fu...@efendi.ca>]

It happens after OutOfMemoryError. Server simply hangs, and SolrAdmin pages
do not work too.

I am using -Xmx8192M -Xms8192M, and I have 16Gb RAM.



Funtick wrote:
> 
> I verified thread dump several times, there are a lot of messages like
> 
> waiting for monitor entry ...
> at org.apache.lucene.index.SegmentReader.norms(SegmentReader.java:790)
> 
> It corresponds to method call:   
> // returns fake norms if norms aren't available
>   public synchronized byte[] norms(String field) throws IOException {
>     ensureOpen();
>     byte[] bytes = getNorms(field);
>     if (bytes==null) bytes=fakeNorms();
>     return bytes;
>   }
> 
> 
> It didn't happen before (when I used CRON-Replication each night, and
> caches were rewarmed daily); it happens now almost each day (after
> significant loads generated by search engines).
> 
> I'll send Thread Dump later, do not have access to logs right now...
> 
> Thanks
> 
> 
> 

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