코히런스 예제를 진행함으로써 기본적인 코히런스 개념을 인지하고자 진행하였습니다.
첫번째 코히런스 어플리케이션은 Coherence에 data를 key value 형태서 넣는 기초적인 어플리케이션 입니다.
코히런스 파일 설정 변경 및 실행
코히런스를 설치하고 ${COHERCNE_HOME}/bin/cohercne.sh 또는 cmd 파일에 들어가
-Dcoherence.distributed.localstorage=false 부분을 True로 변경해 준다
--> 테스트를 위해 데이터를 넣은 storage를 생성
coherence 파일 실행 후 아래와 같이
Map (?) : cache hello-example 2022-01-26 17:20:59.620/207.295 Oracle Coherence GE 12.2.1.4.0 <Info> (thread=main, member=1): Loaded cache configuration from "jar:file:/C:/ofm/weblogic/wls12214/coherence/lib/coherence.jar!/coherence-cache-config.xml" 2022-01-26 17:20:59.708/207.383 Oracle Coherence GE 12.2.1.4.0 <Info> (thread=main, member=1): Created cache factory com.tangosol.net.ExtensibleConfigurableCacheFactory 2022-01-26 17:20:59.883/207.558 Oracle Coherence GE 12.2.1.4.0 <Info> (thread=DistributedCache:PartitionedCache, member=1): Service PartitionedCache joined the cluster with senior service member 1 2022-01-26 17:20:59.896/207.571 Oracle Coherence GE 12.2.1.4.0 <Info> (thread=DistributedCache:PartitionedCache, member=1): Service PartitionedCache: sending PartitionConfig ConfigSync to all 2022-01-26 17:20:59.926/207.601 Oracle Coherence GE 12.2.1.4.0 <Info> (thread=DistributedCache:PartitionedCache, member=1): This member has become the distribution coordinator for MemberSet(Size=1 Member(Id=1, Timestamp=2022-01-26 17:17:49.172, Address=비밀:62466, MachineId=64085, Location=process:17416, Role=CoherenceConsole) ) 2022-01-26 17:20:59.964/207.639 Oracle Coherence GE 12.2.1.4.0 <Info> (thread=DistributedCache:PartitionedCache, member=1): Partition ownership has stabilized with 1 nodes Cache Configuration: hello-example SchemeName: near-direct ServiceName: LocalCache FrontScheme (LocalScheme) HighUnits Units: 10000 UnitFactor: 1 BackScheme (DistributedScheme) SchemeName: thin-direct ServiceName: PartitionedCache ServiceDependencies EventDispatcherThreadPriority: 10 ThreadPriority: 10 WorkerThreadsMax: 2147483647 WorkerThreadsMin: 1 WorkerPriority: 5 ActionPolicyBuilder RulesArray (ArrayList of QuorumRule) [0] RuleElementName: distribution-quorum RuleMask: 1 [1] RuleElementName: restore-quorum RuleMask: 2 [2] RuleElementName: recover-quorum RuleMask: 16 [3] RuleElementName: read-quorum RuleMask: 4 [4] RuleElementName: write-quorum RuleMask: 8 Backups: 1 DistributionAggressiveness: 20 DistributionSynchronized: true OwnershipCapable: true Partitions: 257 BldrsPartitionListener AssignmentStrategyBuilder Strategy: simple TransferThreshold: 524288 DepsPersistence PersistenceBuilder: Mode: on-demand Active Location: C:\Users\User\coherence\active Snapshot Location:C:\Users\User\coherence\snapshots Trash Location:C:\Users\User\coherence\trash StrictPartitioning: true BackingMapScheme InnerScheme (LocalScheme) UnitFactor: 1 BackupConfig InitialSize: 1MB MaximumSize: 1GB InvalidationStrategy: auto Map (hello-example): list |
HelloWorld.java
아래와 같이 Java Project에서 HelloWorld Class를 생성해 준다.
* External Libraries에 ${COHERCNE_HOME}/lib/coherence.jar 등록 필요
이후 RUN을 하면 이전에 실행했던 코히런스에 멤버가 조인이 되면서 key = value 형식으로 데이터를 넣는다.
데이터 확인
list 를 입력하면 입력된 데이터를 확인 할 수 있습니다.
자세한 내용은 아래 오라클 문서에서 확인 하면 됩니다.
https://docs.oracle.com/middleware/1221/coherence/develop-applications/gs_example.htm#COHDG5046
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