I did not look into all details of cache implementation. But it seems to me that, if nothing is defined, the default values (defined in UtilCache class) are used
They are: expireTimeNanos = 0; useSoftReference = false; sizeLimit = 0; etc. Jacques From: "Len Shein" <lsh...@salmonllc.com> >I ran some further tests and found the following: > Where 'entity' cache is concerned commenting out (cache.properties) the > entries (or no entries at all); the system will 'clear' the cache out at a > certain point, I am assuming when GC is run. > > If a specific entity is defined to have no expire time and 'false' to use > soft reference then the built up cache is NOT cleared and built up cache > remains. > > In summary the best approach to cache would be to specifically define the > entities in the cache properties file as 'expire time = 0', 'soft reference > = false' for the main entities used in rendering a site. > > In my testing I set the cache.properties for the following entities, all > other entries were commented out: > Note: There is a comment in the property file stating (for better > performance cache lines should be commented out)? > > # Examples for per-delegator Entity Engine cache settings > > entitycache.entity-list.default.ProductAssoc.useSoftReference=false > entitycache.entity-list.default.ProductAssoc.expireTime=0 > entitycache.entity-list.default.ProductAssoc.maxSize=0 > > entitycache.entity-list.default.ProductCategoryMember.useSoftReference=false > entitycache.entity-list.default.ProductCategoryMember.expireTime=0 > entitycache.entity-list.default.ProductCategoryMember.maxSize=0 > > entitycache.entity-list.default.ProductCategoryRollup.useSoftReference=false > entitycache.entity-list.default.ProductCategoryRollup.expireTime=0 > entitycache.entity-list.default.ProductCategoryRollup.maxSize=0 > > entitycache.entity-list.default.ProductContent.useSoftReference=false > entitycache.entity-list.default.ProductContent.expireTime=0 > entitycache.entity-list.default.ProductContent.maxSize=0 > > entitycache.entity-list.default.ProductFeatureAndAppl.useSoftReference=false > entitycache.entity-list.default.ProductFeatureAndAppl.expireTime=0 > entitycache.entity-list.default.ProductFeatureAndAppl.maxSize=0 > > entitycache.entity-list.default.ProductPriceRule.useSoftReference=false > entitycache.entity-list.default.ProductPriceRule.expireTime=0 > entitycache.entity-list.default.ProductPriceRule.maxSize=0 > > entitycache.entity-list.default.ProductPrice.useSoftReference=false > entitycache.entity-list.default.ProductPrice.expireTime=0 > entitycache.entity-list.default.ProductPrice.maxSize=0 > > entitycache.entity-list.default.ProductPriceCond.useSoftReference=false > entitycache.entity-list.default.ProductPriceCond.expireTime=0 > entitycache.entity-list.default.ProductPriceCond.maxSize=0 > > entitycache.entity.default.Product.useSoftReference=false > entitycache.entity.default.Product.expireTime=0 > entitycache.entity.default.Product.maxSize=0 > > entitycache.entity.default.ProductCaclulatedInfo.useSoftReference=false > entitycache.entity.default.ProductCaclulatedInfo.expireTime=0 > entitycache.entity.default.ProductCaclulatedInfo.maxSize=0 > > entitycache.entity.default.ProductPriceRule.useSoftReference=false > entitycache.entity.default.ProductPriceRule.expireTime=0 > entitycache.entity.default.ProductPriceRule.maxSize=0 > > product.content.rendered.useSoftReference=false > product.content.rendered.expireTime=0 > product.content.rendered.maxSize=0 > > > -----Original Message----- > From: Jacques Le Roux [mailto:jacques.le.r...@les7arts.com] > Sent: Friday, January 25, 2013 3:51 AM > To: user@ofbiz.apache.org > Subject: Re: Cache Clearing > > I never noticed that, a good way to share would be to check on trunk demo > > Jacques > > From: "Len Shein" <lsh...@salmonllc.com> >> I have all the cache.properties set to never expire (commented out), > however >> it seems after I have built up cache at some point the cache is cleared. > I >> have noticed it consistently clears the next day (about a 10 hour window) >> even if there are no users on the site. >> >> >> >> Does anyone have any experience with the cache and what are the causes for >> it to be cleared? >> >> >> >> >> >> >> >> Thank You >> >> >> >> Len Shein >> >> >> >> lsh...@salmonllc.com >> >> lsh...@verizon.net >> >> >> >> 516.742.7888 ext.225 >> >> 732.333.4303 >> >> >> >> >
