启动JanusGraph时，由于这个异常，我要疯了。 发生在两次重启gremlin服务器之间，甚至没有触及配置文件。
此错误总是在gremlin-server的第一次启动时出现。
这是日志中的堆栈跟踪：
6911 [main] INFO org.janusgraph.diskstorage.log.kcvs.KCVSLog - Loaded unidentified ReadMarker start time 2019-08-21T17:57:53.794212900Z into org.janusgraph.diskstorage.log.kcvs.KCVSLog$MessagePuller@51efb731
8148 [main] WARN org.janusgraph.diskstorage.locking.consistentkey.ConsistentKeyLocker - Skipping outdated lock on KeyColumn [k=0x 16-165-160-103-105- 30- 71-114- 97-112-104- 95- 78- 97-109-101- 95- 73-110-100-101-248, c=0x 0] with our rid ( 48- 97- 48- 48- 52- 98- 48- 49- 49- 54- 52- 50- 52- 45- 68- 69- 83- 75- 84- 79- 80- 45- 56- 67- 86- 72- 80- 57- 49- 49) but mismatched timestamp (actual ts 2019-08-21T17:57:54.934645Z, expected ts 2019-08-21T17:57:54.934645300Z)
8149 [main] ERROR org.janusgraph.graphdb.database.StandardJanusGraph - Could not commit transaction [1] due to storage exception in system-commit
org.janusgraph.core.JanusGraphException: Could not execute operation due to backend exception
at org.janusgraph.diskstorage.util.BackendOperation.execute(BackendOperation.java:56)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction.persist(CacheTransaction.java:91)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction.flushInternal(CacheTransaction.java:139)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction.commit(CacheTransaction.java:196)
at org.janusgraph.diskstorage.BackendTransaction.commit(BackendTransaction.java:150)
at org.janusgraph.graphdb.database.StandardJanusGraph.commit(StandardJanusGraph.java:716)
at org.janusgraph.graphdb.transaction.StandardJanusGraphTx.commit(StandardJanusGraphTx.java:1380)
at org.janusgraph.graphdb.database.management.ManagementSystem.commit(ManagementSystem.java:246)
at org.janusgraph.graphdb.management.ConfigurationManagementGraph.createIndexIfDoesNotExist(ConfigurationManagementGraph.java:311)
at org.janusgraph.graphdb.management.ConfigurationManagementGraph.<init>(ConfigurationManagementGraph.java:81)
at org.janusgraph.graphdb.management.JanusGraphManager.lambda$new$0(JanusGraphManager.java:77)
at java.base/java.util.LinkedHashMap.forEach(LinkedHashMap.java:684)
at org.janusgraph.graphdb.management.JanusGraphManager.<init>(JanusGraphManager.java:74)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor.<init>(ServerGremlinExecutor.java:80)
at org.apache.tinkerpop.gremlin.server.GremlinServer.<init>(GremlinServer.java:122)
at org.apache.tinkerpop.gremlin.server.GremlinServer.<init>(GremlinServer.java:86)
at org.apache.tinkerpop.gremlin.server.GremlinServer.main(GremlinServer.java:345)
Caused by: org.janusgraph.diskstorage.locking.PermanentLockingException: Permanent locking failure
at org.janusgraph.diskstorage.locking.AbstractLocker.checkLocks(AbstractLocker.java:359)
at org.janusgraph.diskstorage.locking.consistentkey.ExpectedValueCheckingTransaction.checkAllLocks(ExpectedValueCheckingTransaction.java:175)
at org.janusgraph.diskstorage.locking.consistentkey.ExpectedValueCheckingTransaction.prepareForMutations(ExpectedValueCheckingTransaction.java:154)
at org.janusgraph.diskstorage.locking.consistentkey.ExpectedValueCheckingStoreManager.mutateMany(ExpectedValueCheckingStoreManager.java:72)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction$1.call(CacheTransaction.java:94)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction$1.call(CacheTransaction.java:91)
at org.janusgraph.diskstorage.util.BackendOperation.executeDirect(BackendOperation.java:68)
at org.janusgraph.diskstorage.util.BackendOperation.execute(BackendOperation.java:54)
... 20 more
Caused by: org.janusgraph.diskstorage.PermanentBackendException: Read 1 locks with our rid 48- 97- 48- 48- 52- 98- 48- 49- 49- 54- 52- 50- 52- 45- 68- 69- 83- 75- 84- 79- 80- 45- 56- 67- 86- 72- 80- 57- 49- 49 but mismatched timestamps; no lock column contained our timestamp (2019-08-21T17:57:54.934645300Z)
at org.janusgraph.diskstorage.locking.consistentkey.ConsistentKeyLocker.checkSeniority(ConsistentKeyLocker.java:528)
at org.janusgraph.diskstorage.locking.consistentkey.ConsistentKeyLocker.checkSingleLock(ConsistentKeyLocker.java:454)
at org.janusgraph.diskstorage.locking.consistentkey.ConsistentKeyLocker.checkSingleLock(ConsistentKeyLocker.java:118)
at org.janusgraph.diskstorage.locking.AbstractLocker.checkLocks(AbstractLocker.java:351)
... 27 more
8152 [main] ERROR org.janusgraph.graphdb.database.StandardJanusGraph - Could not commit transaction [1] due to exception
org.janusgraph.core.JanusGraphException: Could not execute operation due to backend exception
at org.janusgraph.diskstorage.util.BackendOperation.execute(BackendOperation.java:56)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction.persist(CacheTransaction.java:91)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction.flushInternal(CacheTransaction.java:139)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction.commit(CacheTransaction.java:196)
at org.janusgraph.diskstorage.BackendTransaction.commit(BackendTransaction.java:150)
at org.janusgraph.graphdb.database.StandardJanusGraph.commit(StandardJanusGraph.java:716)
at org.janusgraph.graphdb.transaction.StandardJanusGraphTx.commit(StandardJanusGraphTx.java:1380)
at org.janusgraph.graphdb.database.management.ManagementSystem.commit(ManagementSystem.java:246)
at org.janusgraph.graphdb.management.ConfigurationManagementGraph.createIndexIfDoesNotExist(ConfigurationManagementGraph.java:311)
at org.janusgraph.graphdb.management.ConfigurationManagementGraph.<init>(ConfigurationManagementGraph.java:81)
at org.janusgraph.graphdb.management.JanusGraphManager.lambda$new$0(JanusGraphManager.java:77)
at java.base/java.util.LinkedHashMap.forEach(LinkedHashMap.java:684)
at org.janusgraph.graphdb.management.JanusGraphManager.<init>(JanusGraphManager.java:74)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor.<init>(ServerGremlinExecutor.java:80)
at org.apache.tinkerpop.gremlin.server.GremlinServer.<init>(GremlinServer.java:122)
at org.apache.tinkerpop.gremlin.server.GremlinServer.<init>(GremlinServer.java:86)
at org.apache.tinkerpop.gremlin.server.GremlinServer.main(GremlinServer.java:345)
Caused by: org.janusgraph.diskstorage.locking.PermanentLockingException: Permanent locking failure
at org.janusgraph.diskstorage.locking.AbstractLocker.checkLocks(AbstractLocker.java:359)
at org.janusgraph.diskstorage.locking.consistentkey.ExpectedValueCheckingTransaction.checkAllLocks(ExpectedValueCheckingTransaction.java:175)
at org.janusgraph.diskstorage.locking.consistentkey.ExpectedValueCheckingTransaction.prepareForMutations(ExpectedValueCheckingTransaction.java:154)
at org.janusgraph.diskstorage.locking.consistentkey.ExpectedValueCheckingStoreManager.mutateMany(ExpectedValueCheckingStoreManager.java:72)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction$1.call(CacheTransaction.java:94)
at org.janusgraph.diskstorage.keycolumnvalue.cache.CacheTransaction$1.call(CacheTransaction.java:91)
at org.janusgraph.diskstorage.util.BackendOperation.executeDirect(BackendOperation.java:68)
at org.janusgraph.diskstorage.util.BackendOperation.execute(BackendOperation.java:54)
... 20 more
Caused by: org.janusgraph.diskstorage.PermanentBackendException: Read 1 locks with our rid 48- 97- 48- 48- 52- 98- 48- 49- 49- 54- 52- 50- 52- 45- 68- 69- 83- 75- 84- 79- 80- 45- 56- 67- 86- 72- 80- 57- 49- 49 but mismatched timestamps; no lock column contained our timestamp (2019-08-21T17:57:54.934645300Z)
at org.janusgraph.diskstorage.locking.consistentkey.ConsistentKeyLocker.checkSeniority(ConsistentKeyLocker.java:528)
at org.janusgraph.diskstorage.locking.consistentkey.ConsistentKeyLocker.checkSingleLock(ConsistentKeyLocker.java:454)
at org.janusgraph.diskstorage.locking.consistentkey.ConsistentKeyLocker.checkSingleLock(ConsistentKeyLocker.java:118)
at org.janusgraph.diskstorage.locking.AbstractLocker.checkLocks(AbstractLocker.java:351)
... 27 more
8153 [main] ERROR org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor - Could not invoke constructor on class org.janusgraph.graphdb.management.JanusGraphManager (defined by the 'graphManager' setting) with one argument of class Settings
我在Windows 10上，我使用的JanusGraph版本是0.4.0，并且配置为使用Cassandra 3.11.0和Elastisearch 6.7.2，它们都在docker上运行（而我手动启动gremlin-server ）。
我已经尝试从docker清理所有内容（容器，图像和卷）。 我也尝试过运行干净的bin / JanusGraph.sh，但是没有运气。 甚至再次下载janusgraph-0.4.0-hadoop2.zip并从开始重新配置也无济于事。
不用说，如果我尝试启动服务器而不接触原始配置文件，它将起作用。 （但没有ConfigurationManagementGraph）
我不明白如果不碰任何东西怎么会破裂。
这是gremlin服务器配置：
host: 0.0.0.0
port: 8182
scriptEvaluationTimeout: 180000
# channelizer: org.apache.tinkerpop.gremlin.server.channel.WebSocketChannelizer
channelizer: org.janusgraph.channelizers.JanusGraphWebSocketChannelizer
graphManager: org.janusgraph.graphdb.management.JanusGraphManager
graphs: {
#graph: conf/gremlin-server/janusgraph-cql-es-server.properties,
ConfigurationManagementGraph: conf/gremlin-server/janusgraph-cql-es-server-configured.properties,
}
scriptEngines: {
gremlin-groovy: {
plugins: { org.janusgraph.graphdb.tinkerpop.plugin.JanusGraphGremlinPlugin: {},
org.apache.tinkerpop.gremlin.server.jsr223.GremlinServerGremlinPlugin: {},
org.apache.tinkerpop.gremlin.tinkergraph.jsr223.TinkerGraphGremlinPlugin: {},
org.apache.tinkerpop.gremlin.jsr223.ImportGremlinPlugin: {classImports: [java.lang.Math], methodImports: [java.lang.Math#*]},
org.apache.tinkerpop.gremlin.jsr223.ScriptFileGremlinPlugin: {files: [scripts/init.groovy]}}}}
serializers:
- { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
- { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0, config: { serializeResultToString: true }}
- { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV3d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
# - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1 }
# - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1, config: { serializeResultToString: true }}
# Older serialization versions for backwards compatibility:
- { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
- { className: org.apache.tinkerpop.gremlin.driver.ser.GryoLiteMessageSerializerV1d0, config: {ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
- { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0, config: { serializeResultToString: true }}
- { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerGremlinV2d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
- { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerGremlinV1d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistryV1d0] }}
- { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV1d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistryV1d0] }}
processors:
- { className: org.apache.tinkerpop.gremlin.server.op.session.SessionOpProcessor, config: { sessionTimeout: 28800000 }}
- { className: org.apache.tinkerpop.gremlin.server.op.traversal.TraversalOpProcessor, config: { cacheExpirationTime: 600000, cacheMaxSize: 1000 }}
metrics: {
consoleReporter: {enabled: true, interval: 180000},
csvReporter: {enabled: true, interval: 180000, fileName: /tmp/gremlin-server-metrics.csv},
jmxReporter: {enabled: true},
slf4jReporter: {enabled: true, interval: 180000},
gangliaReporter: {enabled: false, interval: 180000, addressingMode: MULTICAST},
graphiteReporter: {enabled: false, interval: 180000}}
maxInitialLineLength: 4096
maxHeaderSize: 8192
maxChunkSize: 8192
maxContentLength: 65536
maxAccumulationBufferComponents: 1024
resultIterationBatchSize: 64
writeBufferLowWaterMark: 32768
writeBufferHighWaterMark: 65536
这是janus图的配置（为简洁起见，我删除了注释）：
gremlin.graph=org.janusgraph.core.ConfiguredGraphFactory
graph.graphname=ConfigurationManagementGraph
storage.backend=cql
storage.hostname=127.0.0.1
storage.cql.keyspace=janusgraph
cache.db-cache = true
cache.db-cache-time = 180000
cache.db-cache-size = 0.25
index.search.backend=elasticsearch
index.search.hostname=127.0.0.1
index.search.elasticsearch.client-only=true
这是gremlin服务器在启动时运行的脚本：
def globals = [:]
def getGraph() {
def graphNames = ConfiguredGraphFactory.getGraphNames();
def graphMaps = [:];
for (graphName in graphNames) {
def g = ConfiguredGraphFactory.open(graphName);
graphMaps.put(graphName, g.traversal())
}
return graphMaps;
}
globals << getGraph()
在docker-compose控制台中，我没有看到任何异常，在gremlin-server显示错误之前的最后一件事是以下行：
cassandra | INFO [MigrationStage:1] 2019-08-21 17:57:53,725 ColumnFamilyStore.java:430 - Initializing janusgraph.system_properties_lock_
请让任何人知道什么可能导致此问题？
谢谢！