oscache issues: Cannot get my objects to replicate across my cluster nomatter what I do

[David Rocks-2]

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Hi,
 
I placed this question on the forums a few weeks ago bit I am not sure anyone noticed it, thought I might try the ML.
 
from
 
http://forums.opensymphony.com/thread.jspa?threadID=577818&tstart=0
 
 
Hi,
 
I was wondering if anyone could help me on this one, spent over 2 days on this and trawled the web for a solution but a solution still evades me.
I have 2 tomcat servers running the exact same web application which are successfully clustered, Server1 runs a batch job and stores the results on the cache, server 2 has the same cache object but when I go there pick up the results from server 1 nothing is there. Here is my cache object....

public class FootballCache {
 
 private transient static Logger logger = Logger.getLogger(FootballCache.class);
 private static GeneralCacheAdministrator analysisCache = new GeneralCacheAdministrator() ;
 private final static FootballCache thisFootballCache = new FootballCache() ;
 
 /**
  *
  */
 private FootballCache(){
  
 }
 
 /**
  *
  * @return
  */
 public static synchronized FootballCache getInstance(){
  return thisFootballCache ;
 }
 
 /**
  *
  */
 public void putAnalysisInCache( Competition competition , String date  , ArrayList<AnalysisList> analysisResults ){
  
  logger.debug( "ADDING TO CACHE: '" + competition.getId() + "_" + date + "' games: " + analysisResults.size() ) ;
  
  String key = "" + competition.getId() + "_" + date   ; 
  analysisCache.putInCache( key , analysisResults , new ExpiresRefreshPolicy( CacheEntry.INDEFINITE_EXPIRY  ) ) ;
    
 }
 
 /**
  *
  * @return
  */
 public Set<Date> getCachedAnalysisCompetition( Competition competition ) throws Exception {
 
  Set<Date> sortedDates = new TreeSet<Date>() ;  
  
  // WE WANT TO GET TODAYS DATE, KEEP ADDING AMONTHS WORK OF DAYS TO IT  
  Date todaysDate = new Date() ;
  DateFormat formatter = new SimpleDateFormat("dd.MM.yy");    
    
  for( int i = 0 ; i < 31 ; i++ ){
   String dateString = formatter.format(todaysDate) ;
   
   try{
    analysisCache.getFromCache( competition.getId() + "_" + dateString , CacheEntry.INDEFINITE_EXPIRY ) ;
       sortedDates.add( formatter.parse(dateString) ) ;
   }
   catch( Exception e ){
    analysisCache.cancelUpdate(competition.getId()  + "_" + dateString ) ;
   }
   
   todaysDate.setTime( todaysDate.getTime() +  86400000 ) ;
  }
  
  return sortedDates ;
 }
      }
 
The code is slightly messy, but the basics are server 1 calls putAnalysisInCache and server 2 calls getCachedAnalysisCompetition, the business logic is correct, if server 1 calls getCachedAnalysisCompetition it all works. Just that the objects put on the analysisCache object do not seem to be replicated across to server 2 but are always there on server 1.
 
I was not sure if jgroups worked and my machine was able to multicast but the jgroups test draw application ran OK, if I run server 2 with jgroups log4j set to DEBUG I can see the GMS address of server 2 in this line..

11:07:36,663 DEBUG GMS:77 - initial_mbrs are [[own_addr=192.168.1.65:62613, coord_addr=192.168.1.64:4479, is_server=true], [own_addr=192.168.1.64:4479, coord_ad
dr=192.168.1.64:4479, is_server=true]]
 
I can also see JavaGroups output on server 1 when I call the getCachedAnalysisCompetition method on the cache on server 2, so I am fairly sure it is my coding and not the set up.
I have added the logs for both server for completness.

Many thanks
David
 

oscache.properties
cache.event.listeners=com.opensymphony.oscache.plugins.clustersupport.J avaGroupsBroadcastingListener

versions:
oscache 2.4.1 jgroups 2.6.9

 

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