AppFabric Cache Crashes -

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the scenario:

have written end service periodically checks new rows in database , inserts appfabric cache. have been using approach since 2 odd months.

we using server machine store data cache in different regions. not using cluster of machines. single machine. "default" cache region has been divided 3 regions 3 different environments. each environment access machine cached data specified cache region.

it working fine until following happening since few days. getting following exception.

errorcode: errca0016 :substatus es0001 : connection terminated, possibly due server or network problems or serialized object size greater maxbuffersize on server. result of request unknown.

the subsequent access cache throws following exception: errorcode errca0017 : substatus es0001: there temporary failure. please retry later.

after 4 5 try, following exception. errorcode errca0018 : substatus es0001 : request timed out.

after this, access cache throws following exception: errorcode errca0005 : substatus es0001 : region referred not exist. use createregion api fix error.

looking first error errorcode: errca0016 :substatus es0001 : checked if serialized object stored of greater size max buffer size. prior larger size object kept cache. seems can not problem.

what can exact problem can occurring ?

edited: did view logs of event logger windows appfabirc cache. found upon our diggings. these of frequent error logs obtained.

source : appfabriccachingservice.failfast

param : lease external store expired: microsoft.fabric.federation.externalringstatestoreexception: lease expired @ microsoft.fabric.data.externalstoreauthority.updatenode(nodeinfo nodeinfo, timespan timeout) @ microsoft.fabric.federation.sitenode.performexternalringstatestoreoperations(boolean& canformring, boolean isinsert, boolean isjoining) general : appfabric caching service crashed. lease external store expired: microsoft.fabric.federation.externalringstatestoreexception: lease expired    @ microsoft.fabric.data.externalstoreauthority.updatenode(nodeinfo nodeinfo, timespan timeout)    @ microsoft.fabric.federation.sitenode.performexternalringstatestoreoperations(boolean& canformring, boolean isinsert, boolean isjoining)}

source: appfabriccachingservice.crash

param :

system.runtime.callbackexception: async callback threw exception. ---> system.identitymodel.tokens.securitytokenvalidationexception: service not allow log on anonymously. @ ......

probable causes

upon searching above event log errors, found caused due following problem. cache server different server , sql configuration used same database on different server. while getting cache configurations sql database there failure in creating connection between cache server , database server. so, moved cache configurations sql xml. still got error.

errorcode errca0017 : substatus es0001: there temporary failure. please retry later.

errorcode errca0005 : substatus es0001 : region referred not exist. use createregion api fix error.

upon more digging up, guessing problem this. whenever machine not has grant access permissions access appfabric cache, tries number of attempts , appfabric stops working. after granting access cache using grant powershell commands, machine able access cache. have monitor few days.

could valid reason ?


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