https://bz.apache.org/bugzilla/show_bug.cgi?id=64628
--- Comment #4 from Gavin.peng <ronxin...@163.com> ---
Thanks Mark Thomas 's help ,the cache size exceed shown in the attachment is
tomcat6,the default cache size is -1 in tomcat6,so has many request processor
cached
the tomcat7/8/9 the default cache is is 200,may be the size of the cache may
exceed the configured size slightly (as per the comment),but if concurrent
request is too many at a moment,the cache is also exceed the configured size
the code is flow of tomcat9.0.37:
@SuppressWarnings("sync-override") // Size may exceed cache size a bit
@Override
public boolean push(Processor processor) {
int cacheSize = handler.getProtocol().getProcessorCache();
boolean offer = cacheSize == -1 ? true : size.get() < cacheSize;
//avoid over growing our cache or add after we have stopped
boolean result = false;
if (offer) {
result = super.push(processor);
if (result) {
size.incrementAndGet();
}
}
if (!result) handler.unregister(processor);
return result;
}
may be override the method of push at will?,we upgrade tomcat to tomcat9
thanks
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