Hi MYCACHE is the name of the cache that is being used. We are observing the below Exception in server logs: cache mode : TRANSACTIONAL , PESSIMISTIC , REPEATABLE_READ
[01:46:41,022][SEVERE][grid-timeout-worker-#135][GridDhtColocatedCache] <MYCACHE> Failed to acquire lock for request: GridNearLockRequest [topVer=AffinityTopologyVersion [topVer=165, minorTopVer=0], miniId=1, dhtVers=[null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null], subjId=d669161f-60d6-4d5d-89d2-31fbaf38c3ef, taskNameHash=0, createTtl=-1, accessTtl=-1, flags=7, filter=null, super=GridDistributedLockRequest [nodeId=d669161f-60d6-4d5d-89d2-31fbaf38c3ef, nearXidVer=GridCacheVersion [topVer=151116344, order=1540895195350, nodeOrder=159], threadId=557, futId=8f77c6a7661-f7f675c6-2a1a-4f4f-9d74-054d7905822e, timeout=53696, isInTx=true, isInvalidate=false, isRead=true, isolation=REPEATABLE_READ, retVals=[true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true], txSize=0, flags=0, keysCnt=52, super=GridDistributedBaseMessage [ver=GridCacheVersion [topVer=151116344, order=1540895195350, nodeOrder=159], committedVers=null, rolledbackVers=null, cnt=0, super=GridCacheIdMessage [cacheId=1737458824]]]] class org.apache.ignite.internal.transactions.IgniteTxTimeoutCheckedException: Failed to acquire lock within provided timeout for transaction [timeout=53696, Following are my concerns: 1. dhtVers=[null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null]. What does this mean or indicate ? 2. The transaction timeout set by us is 60000. But the timeout in exception message is : timeout=53696. According to : http://apache-ignite-users.70518.x6.nabble.com/Ignite-2-0-transaction-timeout-not-holding-up-td16462.html : It means that in a transaction different nodes are involved in locking. But in our logic we use affinity and all locks should happen with in same partition/node due to same affinity key . Is it possible that lock is being acquired on backup partition also and failed ? Please let us know the possibilities for cause of this Exception. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
