Re: Caused by: org.janusgraph.core.JanusGraphException: A JanusGraph graph with the same instance id [0a000439355-0b2b58ca5c222] is already open. Might required forced shutdown.


Real Life Adventure
 

Hi Marc,
              As per your info closed all instances other than current one.still if i restart server it  is throwing same instance error.

            
             as per logs there are multiple times it is generating instance id.if it is the problem wt is the work around for that.

             please check server start logs for your reference.

waiting for storage...,
waiting for storage...,
waiting for storage...,
waiting for storage...,
waiting for storage...,
waiting for storage...,
waiting for storage...,
waiting for storage...,
waiting for storage...,
waiting for storage...,
SLF4J: Class path contains multiple SLF4J bindings.,
SLF4J: Found binding in [jar:file:/opt/janusgraph/lib/slf4j-log4j12-1.7.12.jar!/org/slf4j/impl/StaticLoggerBinder.class],
SLF4J: Found binding in [jar:file:/opt/janusgraph/lib/logback-classic-1.1.3.jar!/org/slf4j/impl/StaticLoggerBinder.class],
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.,
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory],
0    [main] INFO  com.jcabi.manifests.Manifests  - 113 attributes loaded from 262 stream(s) in 224ms, 113 saved, 3647 ignored: ["Agent-Class", "Ant-Version", "Archiver-Version", "Automatic-Module-Name", "Bnd-LastModified", "Boot-Class-Path", "Branch", "Build-Date", "Build-Host", "Build-Id", "Build-Java-Version", "Build-Jdk", "Build-Jdk-Spec", "Build-Job", "Build-Number", "Build-Timestamp", "Build-Version", "Built-At", "Built-By", "Built-Date", "Built-OS", "Built-On", "Built-Status", "Bundle-ActivationPolicy", "Bundle-Activator", "Bundle-BuddyPolicy", "Bundle-Category", "Bundle-ClassPath", "Bundle-ContactAddress", "Bundle-Description", "Bundle-DocURL", "Bundle-License", "Bundle-ManifestVersion", "Bundle-Name", "Bundle-NativeCode", "Bundle-RequiredExecutionEnvironment", "Bundle-SymbolicName", "Bundle-Vendor", "Bundle-Version", "Can-Redefine-Classes", "Change", "Class-Path", "Copyright", "Created-By", "DSTAMP", "DynamicImport-Package", "Eclipse-BuddyPolicy", "Eclipse-ExtensibleAPI", "Embed-Dependency", "Embed-Transitive", "Export-Package", "Extension-Name", "Extension-name", "Fragment-Host", "Gradle-Version", "Gremlin-Lib-Paths", "Gremlin-Plugin-Dependencies", "Gremlin-Plugin-Paths", "Ignore-Package", "Implementation-Build", "Implementation-Build-Date", "Implementation-Title", "Implementation-URL", "Implementation-Vendor", "Implementation-Vendor-Id", "Implementation-Version", "Import-Package", "Include-Resource", "JCabi-Build", "JCabi-Date", "JCabi-Version", "Java-Vendor", "Java-Version", "Main-Class", "Manifest-Version", "Maven-Version", "Module-Email", "Module-Origin", "Module-Owner", "Module-Source", "Multi-Release", "Originally-Created-By", "Os-Arch", "Os-Name", "Os-Version", "Package", "Premain-Class", "Private-Package", "Provide-Capability", "Require-Bundle", "Require-Capability", "Scm-Connection", "Scm-Revision", "Scm-Url", "Specification-Title", "Specification-Vendor", "Specification-Version", "TODAY", "TSTAMP", "Time-Zone-Database-Version", "Tool", "X-Compile-Elasticsearch-Snapshot", "X-Compile-Elasticsearch-Version", "X-Compile-Lucene-Version", "X-Compile-Source-JDK", "X-Compile-Target-JDK", "hash", "implementation-version", "mode", "package", "service", "url", "version"],
2    [main] INFO  org.apache.tinkerpop.gremlin.server.GremlinServer  - 3.4.6
,
         \,,,/
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         (o o)
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-----oOOo-(3)-oOOo-----
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,
210  [main] INFO  org.apache.tinkerpop.gremlin.server.GremlinServer  - Configuring Gremlin Server from /etc/opt/janusgraph/gremlin-server.yaml,
299  [main] INFO  org.apache.tinkerpop.gremlin.server.util.MetricManager  - Configured Metrics ConsoleReporter configured with report interval=180000ms,
300  [main] INFO  org.apache.tinkerpop.gremlin.server.util.MetricManager  - Configured Metrics CsvReporter configured with report interval=180000ms to fileName=/tmp/gremlin-server-metrics.csv,
363  [main] INFO  org.apache.tinkerpop.gremlin.server.util.MetricManager  - Configured Metrics JmxReporter configured with domain= and agentId=,
365  [main] INFO  org.apache.tinkerpop.gremlin.server.util.MetricManager  - Configured Metrics Slf4jReporter configured with interval=180000ms and loggerName=org.apache.tinkerpop.gremlin.server.Settings$Slf4jReporterMetrics,
1024 [main] INFO  com.datastax.driver.core  - DataStax Java driver 3.9.0 for Apache Cassandra,
1053 [main] INFO  com.datastax.driver.core.GuavaCompatibility  - Detected Guava < 19 in the classpath, using legacy compatibility layer,
1281 [main] INFO  com.datastax.driver.core.ClockFactory  - Using native clock to generate timestamps.,
1411 [main] INFO  com.datastax.driver.core.NettyUtil  - Found Netty's native epoll transport in the classpath, using it,
2705 [main] INFO  com.datastax.driver.core.policies.DCAwareRoundRobinPolicy  - Using data-center name 'dc1' for DCAwareRoundRobinPolicy (if this is incorrect, please provide the correct datacenter name with DCAwareRoundRobinPolicy constructor),
2707 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.43:9042 added,
2707 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.28:9042 added,
2707 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.29:9042 added,
3108 [main] INFO  org.janusgraph.core.util.ReflectiveConfigOptionLoader  - Loaded and initialized config classes: 13 OK out of 13 attempts in PT0.067S,
5219 [main] INFO  org.janusgraph.graphdb.idmanagement.UniqueInstanceIdRetriever  - Generated unique-instance-id=0a000439354-0b2b58ca5c221,
5227 [main] INFO  com.datastax.driver.core.ClockFactory  - Using native clock to generate timestamps.,
5847 [main] INFO  com.datastax.driver.core.policies.DCAwareRoundRobinPolicy  - Using data-center name 'dc1' for DCAwareRoundRobinPolicy (if this is incorrect, please provide the correct datacenter name with DCAwareRoundRobinPolicy constructor),
5847 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.31:9042 added,
5847 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.43:9042 added,
5847 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.29:9042 added,
6034 [main] INFO  org.janusgraph.diskstorage.Backend  - Configuring index [search],
6580 [main] INFO  org.janusgraph.diskstorage.Backend  - Initiated backend operations thread pool of size 8,
6873 [main] INFO  org.janusgraph.diskstorage.log.kcvs.KCVSLog  - Loaded unidentified ReadMarker start time 2021-03-17T10:23:33.138Z into org.janusgraph.diskstorage.log.kcvs.KCVSLog$MessagePuller@3f9f71ff,
7033 [main] INFO  com.datastax.driver.core.ClockFactory  - Using native clock to generate timestamps.,
7498 [main] INFO  com.datastax.driver.core.policies.DCAwareRoundRobinPolicy  - Using data-center name 'dc1' for DCAwareRoundRobinPolicy (if this is incorrect, please provide the correct datacenter name with DCAwareRoundRobinPolicy constructor),
7498 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.43:9042 added,
7498 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.28:9042 added,
7498 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.29:9042 added,
9689 [main] INFO  org.janusgraph.graphdb.idmanagement.UniqueInstanceIdRetriever  - Generated unique-instance-id=0a000439354-0b2b58ca5c222,
9690 [main] INFO  com.datastax.driver.core.ClockFactory  - Using native clock to generate timestamps.,
10113 [main] INFO  com.datastax.driver.core.policies.DCAwareRoundRobinPolicy  - Using data-center name 'dc1' for DCAwareRoundRobinPolicy (if this is incorrect, please provide the correct datacenter name with DCAwareRoundRobinPolicy constructor),
10113 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.31:9042 added,
10114 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.43:9042 added,
10114 [main] INFO  com.datastax.driver.core.Cluster  - New Cassandra host /*.*.*.29:9042 added,
10240 [main] INFO  org.janusgraph.diskstorage.Backend  - Initiated backend operations thread pool of size 8,
10378 [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,
Exception in thread "main" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException,
at org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor.<init>(ServerGremlinExecutor.java:91),
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: java.lang.reflect.InvocationTargetException,
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method),
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62),
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45),
at java.lang.reflect.Constructor.newInstance(Constructor.java:423),
at org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor.<init>(ServerGremlinExecutor.java:80),
... 3 more,
Caused by: org.janusgraph.core.JanusGraphException: A JanusGraph graph with the same instance id [0a000439354-0b2b58ca5c222] is already open. Might required forced shutdown.,
at org.janusgraph.graphdb.database.StandardJanusGraph.<init>(StandardJanusGraph.java:173),
at org.janusgraph.core.JanusGraphFactory.lambda$open$0(JanusGraphFactory.java:150),
at org.janusgraph.graphdb.management.JanusGraphManager.openGraph(JanusGraphManager.java:243),
at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:150),
at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:100),
at org.janusgraph.graphdb.management.JanusGraphManager.lambda$new$0(JanusGraphManager.java:75),
at java.util.LinkedHashMap.forEach(LinkedHashMap.java:684),
at org.janusgraph.graphdb.management.JanusGraphManager.<init>(JanusGraphManager.java:74),
... 8 more,

Thanks,
M.Srinivas.

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