Lost version info during state transfer causes overwrite of newer data that joining node has read from store ------------------------------------------------------------------------------------------------------------ Key: ISPN-3431 URL: https://issues.jboss.org/browse/ISPN-3431 Project: Infinispan Issue Type: Bug Components: State transfer Affects Versions: 6.0.0.Alpha3 Environment: uname -s ; cat /etc/redhat-release ; java -version Linux Red Hat Enterprise Linux Server release 5.9 (Tikanga) java version "1.6.0_30" Java(TM) SE Runtime Environment (build 1.6.0_30-b12) Java HotSpot(TM) 64-Bit Server VM (build 20.5-b03, mixed mode) Reporter: Nikolay Martynov Assignee: Pedro Ruivo Priority: Critical Fix For: 6.0.0.CR1 When state transfer sends data to newly joining node no version information is provided despite the fact that this information is available to the cluster (for example, loaded from store). When newly joining node has loaded from its store newer version of data than cluster has then this newer version of data is overwritten because no version information is provided during state transfer. Scenario: {noformat} 1. Start node1, node2, node3 2. Put {A=>A1} from node1 3. Put {B=>B1} from node2 4. Put {C=>C1} from node3 5. Gracefully shutdown node1 saving the data 6. Gracefully shutdown node2 saving the data 7. Put {C=>C2} from node3 8. Gracefully shutdown node3 saving the data 9. Start node1 loading the data 10. Start node2 loading the data 11. Start node3 loading the data {noformat} Loaded from store on node3 - version information shows its newer than nodes 1 and 2 have: {noformat} org.infinispan.interceptors.CallInterceptor Executing command: PutKeyValueCommand{key=C, value=C2, flags=[CACHE_MODE_LOCAL, SKIP_LOCKING, SKIP_CACHE_STORE, SKIP_INDEXING, SKIP_OWNERSHIP_CHECK, IGNORE_RETURN_VALUES], putIfAbsent=false, metadata=EmbeddedMetadata{version=SimpleClusteredVersion{topologyId=8, version=2}}, successful=true, ignorePreviousValue=false}. {noformat} During state transfer older value C1 is received with version information being null: {noformat} org.infinispan.statetransfer.StateTransferInterceptor handleNonTxWriteCommand for command PutKeyValueCommand{key=C, value=C1, flags=[CACHE_MODE_LOCAL, SKIP_REMOTE_LOOKUP, PUT_FOR_STATE_TRANSFER, SKIP_SHARED_CACHE_STORE, SKIP_OWNERSHIP_CHECK, IGNORE_RETURN_VALUES, SKIP_XSITE_BACKUP], putIfAbsent=false, metadata=EmbeddedMetadata{version=null}, successful=true, ignorePreviousValue=false} {noformat} As a result newer value is replaced with older: {noformat} org.infinispan.interceptors.EntryWrappingInterceptor About to commit entry ClusteredRepeatableReadEntry(323f265b){key=C, value=C1, oldValue=C2, isCreated=false, isChanged=true, isRemoved=false, isValid=true, skipRemoteGet=true, metadata=EmbeddedMetadata{version=SimpleClusteredVersion{topologyId=8, version=2}}} {noformat} As far as i can see, any key on any node that it didnt written but has received during resync has version=null after loading from store. Config: {code:xml} <?xml version="1.0" encoding="UTF-8"?> <!-- This is just a very simplistic example configuration file. For more information, please see http://docs.jboss.org/infinispan/5.3/configdocs/infinispan-config-5.3.html --> <infinispan xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:infinispan:config:6.0 http://docs.jboss.org/infinispan/schemas/infinispan-config-6.0.xsd" xmlns="urn:infinispan:config:6.0"> <global> <globalJmxStatistics enabled="true" jmxDomain="Infinispan" /> <transport> <properties> <property name="configurationFile" value="jgroups.xml" /> </properties> </transport> </global> <namedCache name="routing_table"> <clustering mode="REPL"> <stateTransfer awaitInitialTransfer="true" fetchInMemoryState="true"/> <sync replTimeout="1000"/> <!--async useReplQueue="true" replQueueMaxElements="100" /--> </clustering> <loaders passivation="false" shared="false" preload="true"> <singleFileStore location="target/routing_table${infinispan.store_name:not_specified}/"> </singleFileStore> </loaders> <versioning enabled="true" versioningScheme="SIMPLE"/> <transaction transactionMode="TRANSACTIONAL" autoCommit="true" transactionManagerLookupClass="org.infinispan.transaction.lookup.GenericTransactionManagerLookup" lockingMode="OPTIMISTIC" /> <locking writeSkewCheck="true" isolationLevel="REPEATABLE_READ"/> </namedCache> </infinispan> {code}