Are you allocating sufficient heap space to the server and client VM’s? Try logging verbose gc during the test and see if there are long stop-the-world pauses.
Anthony > On Jun 6, 2017, at 10:04 AM, Fan, Shing <[email protected]> wrote: > > Hi, > > I’m running a locator and a server on my PC, and is having 50 different > clients (different compute node on a local cloud) writing to my cache > simultaneously. Each client process would write 10MB of data and close > connection. The same client process is repeated twice > (put(10MB)/close/put(10MB)/close). Occasionally, the client would require > over 100s to close the connection (I’m timing the time elapse during each > point of the client process to see where is potential bottleneck). Does > anyone know why this (extremely long connection time) occurs? > > I’m not sure if this is of any use, I see the following in the server log. > > [info 2017/06/06 12:52:19.640 EDT server1 <ServerConnection on port 40411 > Thread 658> tid=0x2f9] Server connection from > [identity(10.208.59.180(default_GemfireDS:13844:loner):2:GFNative_4gVX1YqGJU13844:default_GemfireDS,connection=1; > port=53042]: connection disconnect detected by EOF. > > [warning 2017/06/06 12:52:19.640 EDT server1 <ServerConnection on port 40411 > Thread 658> tid=0x2f9] ClientHealthMonitor: Unregistering client with member > id > identity(10.208.59.180(default_GemfireDS:13844:loner):2:GFNative_4gVX1YqGJU13844:default_GemfireDS,connection=1 > due to: The connection has been reset while reading the header > > In terms of configuration of my cache. It is a simple PARTITION cache > without redundancy (I’m doing evaluation of Gemfire/Geode). On the client > side, below is the client-cache xml for reference. > > <client-cache> > <pool name="MyGridPool"> > <locator host="10.109.35.198" port="40401"/> > </pool> > <region name = "MyCache" refid="PROXY"/> > > </client-cache> > > This is my code (using C++ client). > > CacheFactoryPtr cacheFactory = CacheFactory::createCacheFactory(); > cacheFactory->set("grid-client", "true"); > cacheFactory->set("cache-xml-file", xmlPath.c_str()); > CachePtr cachePtr = cacheFactory->create(); > RegionPtr regionPtr = cachePtr->getRegion(“MyCache”); > regionPtr->put( key, value ); > cachePtr->close(); > > Thanks, > Shing > > > _______________________________________________________________________ > > This email is intended only for the use of the individual(s) to whom it is > addressed and may be privileged and confidential. > Unauthorised use or disclosure is prohibited. If you receive this e-mail in > error, please advise immediately and delete the original message. > This message may have been altered without your or our knowledge and the > sender does not accept any liability for any errors or omissions in the > message. > > Ce courriel est confidentiel et protégé. L'expéditeur ne renonce pas aux > droits et obligations qui s'y rapportent. > Toute diffusion, utilisation ou copie de ce message ou des renseignements > qu'il contient par une personne autre que le (les) destinataire(s) désigné(s) > est interdite. > Si vous recevez ce courriel par erreur, veuillez m'en aviser immédiatement, > par retour de courriel ou par un autre moyen. >
