cassandra - gremlin 和 janusgraph 中的 OperationTimedOutException，同时将其与在 docker-container 中运行的 scylla 连接
问题描述
我试图用 janusgraph 实现 scylla，但收到操作超时异常。我还尝试用 janusgraph 实现 cassandra 并成功运行。
我在 docker-container 中运行 scylladb，我在本地机器上运行 cassandra。我不确定在 docker-container 中运行是否会是原因。
在 cassandra 中，经过某些操作后，它会在使用 cassandra -f 运行它时停止提示屏幕上的任何内容，但在 scylla 的情况下，它会不断提示类似以下内容。我不知道为什么会这样。
INFO 2021-07-06 04:40:24,566 [shard 0] compaction - [Compact system_schema.columns 4786c960-de14-11eb-b4f5-03c308428361] Compacting [/var/lib/scylla/data/system_schema/columns-24101c25a2ae3af787c1b40ee1aca33f/md-116-big-Data.db:level=0:origin=memtable, /var/lib/scylla/data/system_schema/columns-24101c25a2ae3af787c1b40ee1aca33f/md-112-big-Data.db:level=0:origin=compaction, ]
INFO 2021-07-06 04:40:24,794 [shard 3] schema_tables - Schema version changed to 0b21a303-c053-3c4c-9fba-85f3bdd54894
我收到的超时错误如下
com.datastax.driver.core.exceptions.OperationTimedOutException: [/127.0.0.1:9042] Timed out waiting for server response
at com.datastax.driver.core.exceptions.OperationTimedOutException.copy(OperationTimedOutException.java:43)
at com.datastax.driver.core.exceptions.OperationTimedOutException.copy(OperationTimedOutException.java:25)
at com.datastax.driver.core.DriverThrowables.propagateCause(DriverThrowables.java:35)
at com.datastax.driver.core.DefaultResultSetFuture.getUninterruptibly(DefaultResultSetFuture.java:293)
at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:58)
at org.janusgraph.diskstorage.cql.CQLKeyColumnValueStore.initializeTable(CQLKeyColumnValueStore.java:236)
at org.janusgraph.diskstorage.cql.CQLKeyColumnValueStore.<init>(CQLKeyColumnValueStore.java:161)
at org.janusgraph.diskstorage.cql.CQLStoreManager.lambda$openDatabase$14(CQLStoreManager.java:420)
at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1705)
at org.janusgraph.diskstorage.cql.CQLStoreManager.openDatabase(CQLStoreManager.java:420)
at org.janusgraph.diskstorage.keycolumnvalue.KeyColumnValueStoreManager.openDatabase(KeyColumnValueStoreManager.java:43)
at org.janusgraph.diskstorage.Backend$5.apply(Backend.java:611)
at org.janusgraph.diskstorage.Backend$5.apply(Backend.java:606)
at org.janusgraph.diskstorage.Backend.getLocker(Backend.java:209)
at org.janusgraph.diskstorage.locking.consistentkey.ExpectedValueCheckingStoreManager.openDatabase(ExpectedValueCheckingStoreManager.java:64)
at org.janusgraph.diskstorage.Backend.initialize(Backend.java:237)
at org.janusgraph.graphdb.configuration.GraphDatabaseConfiguration.getBackend(GraphDatabaseConfiguration.java:1360)
at org.janusgraph.graphdb.database.StandardJanusGraph.<init>(StandardJanusGraph.java:146)
at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:161)
at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:132)
at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:79)
at org.janusgraph.core.JanusGraphFactory$open.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:127)
at groovysh_evaluate.run(groovysh_evaluate:3)
at groovysh_evaluate$run.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at groovysh_evaluate$run.call(Unknown Source)
at org.codehaus.groovy.tools.shell.Interpreter.evaluate(Interpreter.groovy:81)
at org.codehaus.groovy.tools.shell.Evaluator$evaluate.call(Unknown Source)
at org.codehaus.groovy.tools.shell.Groovysh.execute(Groovysh.groovy:201)
at org.apache.tinkerpop.gremlin.console.GremlinGroovysh.super$3$execute(GremlinGroovysh.groovy)
at jdk.internal.reflect.GeneratedMethodAccessor28.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:101)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:323)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1217)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:144)
at org.apache.tinkerpop.gremlin.console.GremlinGroovysh.execute(GremlinGroovysh.groovy:83)
at org.codehaus.groovy.tools.shell.Shell.leftShift(Shell.groovy:120)
at org.codehaus.groovy.tools.shell.Shell$leftShift$1.call(Unknown Source)
at org.codehaus.groovy.tools.shell.ShellRunner.work(ShellRunner.groovy:93)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$work(InteractiveShellRunner.groovy)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:101)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:323)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1217)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:144)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:164)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.work(InteractiveShellRunner.groovy:138)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.groovy.runtime.callsite.PlainObjectMetaMethodSite.doInvoke(PlainObjectMetaMethodSite.java:43)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:190)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:58)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:160)
at org.codehaus.groovy.tools.shell.ShellRunner.run(ShellRunner.groovy:57)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$run(InteractiveShellRunner.groovy)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:101)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:323)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1217)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:144)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:164)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.run(InteractiveShellRunner.groovy:97)
at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:234)
at org.apache.tinkerpop.gremlin.console.Console.<init>(Console.groovy:168)
at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:234)
at org.apache.tinkerpop.gremlin.console.Console.main(Console.groovy:502)
Caused by: com.datastax.driver.core.exceptions.OperationTimedOutException: [/127.0.0.1:9042] Timed out waiting for server response
at com.datastax.driver.core.RequestHandler$SpeculativeExecution.onTimeout(RequestHandler.java:979)
at com.datastax.driver.core.Connection$ResponseHandler$1.run(Connection.java:1605)
at io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:672)
at io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:747)
at io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:472)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:829)
解决方案
在您发布的超时错误中 - 请参阅：
OperationTimedOutException: [/127.0.0.1:9042]
如果您在 docker 上使用 Scylla，则应使用容器 IP（并且仅在 Linux 上），在 Mac 上，您将无法从主机访问容器。
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