无法通过Hbase客户端

时间：2015-10-08 14:52:51

标签： hbase titan bigtable google-cloud-bigtable

我正在尝试使用其HBase客户端，使用Hadoop 2（HBase 1.0.2客户端）（在https://github.com/thinkaurelius/titan/wiki/Downloads中提供）与Google Cloud Bigtable服务连接到Titan 1.0.0。

我可以通过关注this procedure从GCE实例中的HBase shell成功连接到Bigtable。 hbase-site.xml根据模板，我已经下载了ALPN_VERSION=8.1.5.v20150921的Bigtable jar（Oracle JDK SE 1.8.0_60）

<configuration>
  <property>
    <name>hbase.client.connection.impl</name>
    <value>com.google.cloud.bigtable.hbase1_0.BigtableConnection</value>
  </property>
  <property>
    <name>google.bigtable.cluster.name</name>
    <value>[YOUR-CLUSTER-ID]</value>
  </property>
  <property>
    <name>google.bigtable.project.id</name>
    <value>[YOUR-PROJECT-ID]</value>
  </property>
  <property>
    <name>google.bigtable.zone.name</name>
    <value>[YOUR-ZONE-NAME]</value>
  </property>
</configuration>

然后，我将hbase-site.xml复制到titan-1.0.0-hadoop2/conf目录，将Bigtable jar复制到titan-1.0.0-hadoop2/lib文件夹。

然后，在titan-1.0.0-hadoop2文件夹中，我运行./run/gremlin.sh并启动控制台。

因此，在尝试使用HBase客户端创建连接时（配置为指向Bigtable集群）... 

TitanGraph graph = TitanFactory.build().set("storage.backend", "hbase").open();

...我在Gremlin控制台中遇到以下异常：

com.google.cloud.bigtable.hbase1_0.BigtableConnection cannot be cast to org.apache.hadoop.hbase.client.ClusterConnection

这是堆栈跟踪：

gremlin> TitanFactory.build().set("storage.backend", "hbase").open();

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/lib/titan-1.0.0-hadoop2/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/lib/titan-1.0.0-hadoop2/lib/logback-classic-1.1.2.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]
13:42:24 WARN  org.apache.hadoop.util.NativeCodeLoader  - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
13:42:25 WARN  com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager  - Unexpected exception during getDeployment()
java.lang.ClassCastException: com.google.cloud.bigtable.hbase1_0.BigtableConnection cannot be cast to org.apache.hadoop.hbase.client.ClusterConnection
    at org.apache.hadoop.hbase.client.HBaseAdmin.(HBaseAdmin.java:225)
    at com.thinkaurelius.titan.diskstorage.hbase.HConnection1_0.getAdmin(HConnection1_0.java:28)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getAdminInterface(HBaseStoreManager.java:960)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureTableExists(HBaseStoreManager.java:747)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getLocalKeyPartition(HBaseStoreManager.java:556)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getDeployment(HBaseStoreManager.java:347)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getFeatures(HBaseStoreManager.java:389)
    at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.(GraphDatabaseConfiguration.java:1321)
    at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:94)
    at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:84)
    at com.thinkaurelius.titan.core.TitanFactory$Builder.open(TitanFactory.java:139)
    at com.thinkaurelius.titan.core.TitanFactory$Builder$open$0.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:110)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:114)
    at groovysh_evaluate.run(groovysh_evaluate:3)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.Interpreter.evaluate(Interpreter.groovy:69)
    at org.codehaus.groovy.tools.shell.Groovysh.execute(Groovysh.groovy:185)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.Shell.leftShift(Shell.groovy:119)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.ShellRunner.work(ShellRunner.groovy:94)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$work(InteractiveShellRunner.groovy)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:130)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:150)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.work(InteractiveShellRunner.groovy:123)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.ShellRunner.run(ShellRunner.groovy:58)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$run(InteractiveShellRunner.groovy)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:130)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:150)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.run(InteractiveShellRunner.groovy:82)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.apache.tinkerpop.gremlin.console.Console.(Console.groovy:144)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.apache.tinkerpop.gremlin.console.Console.main(Console.groovy:303)
13:42:25 WARN  com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager  - Unexpected exception during getDeployment()
java.lang.ClassCastException: com.google.cloud.bigtable.hbase1_0.BigtableConnection cannot be cast to org.apache.hadoop.hbase.client.ClusterConnection
    at org.apache.hadoop.hbase.client.HBaseAdmin.(HBaseAdmin.java:225)
    at com.thinkaurelius.titan.diskstorage.hbase.HConnection1_0.getAdmin(HConnection1_0.java:28)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getAdminInterface(HBaseStoreManager.java:960)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureTableExists(HBaseStoreManager.java:747)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getLocalKeyPartition(HBaseStoreManager.java:556)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getDeployment(HBaseStoreManager.java:347)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getFeatures(HBaseStoreManager.java:389)
    at com.thinkaurelius.titan.diskstorage.Backend.getStandaloneGlobalConfiguration(Backend.java:438)
    at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.(GraphDatabaseConfiguration.java:1322)
    at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:94)
    at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:84)
    at com.thinkaurelius.titan.core.TitanFactory$Builder.open(TitanFactory.java:139)
    at com.thinkaurelius.titan.core.TitanFactory$Builder$open$0.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:110)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:114)
    at groovysh_evaluate.run(groovysh_evaluate:3)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.Interpreter.evaluate(Interpreter.groovy:69)
    at org.codehaus.groovy.tools.shell.Groovysh.execute(Groovysh.groovy:185)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.Shell.leftShift(Shell.groovy:119)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.ShellRunner.work(ShellRunner.groovy:94)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$work(InteractiveShellRunner.groovy)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:130)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:150)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.work(InteractiveShellRunner.groovy:123)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.ShellRunner.run(ShellRunner.groovy:58)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$run(InteractiveShellRunner.groovy)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:130)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:150)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.run(InteractiveShellRunner.groovy:82)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.apache.tinkerpop.gremlin.console.Console.(Console.groovy:144)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.apache.tinkerpop.gremlin.console.Console.main(Console.groovy:303)
13:42:25 WARN  com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager  - Unexpected exception during getDeployment()
java.lang.ClassCastException: com.google.cloud.bigtable.hbase1_0.BigtableConnection cannot be cast to org.apache.hadoop.hbase.client.ClusterConnection
    at org.apache.hadoop.hbase.client.HBaseAdmin.(HBaseAdmin.java:225)
    at com.thinkaurelius.titan.diskstorage.hbase.HConnection1_0.getAdmin(HConnection1_0.java:28)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getAdminInterface(HBaseStoreManager.java:960)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureTableExists(HBaseStoreManager.java:747)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getLocalKeyPartition(HBaseStoreManager.java:556)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getDeployment(HBaseStoreManager.java:347)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getFeatures(HBaseStoreManager.java:389)
    at com.thinkaurelius.titan.diskstorage.common.AbstractStoreManager.getMetaDataSchema(AbstractStoreManager.java:44)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseKeyColumnValueStore.(HBaseKeyColumnValueStore.java:67)
    at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.openDatabase(HBaseStoreManager.java:446)
    at com.thinkaurelius.titan.diskstorage.keycolumnvalue.KeyColumnValueStoreManager.openDatabase(KeyColumnValueStoreManager.java:29)
    at com.thinkaurelius.titan.diskstorage.Backend.getStandaloneGlobalConfiguration(Backend.java:449)
    at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.(GraphDatabaseConfiguration.java:1322)
    at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:94)
    at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:84)
    at com.thinkaurelius.titan.core.TitanFactory$Builder.open(TitanFactory.java:139)
    at com.thinkaurelius.titan.core.TitanFactory$Builder$open$0.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:110)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:114)
    at groovysh_evaluate.run(groovysh_evaluate:3)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.Interpreter.evaluate(Interpreter.groovy:69)
    at org.codehaus.groovy.tools.shell.Groovysh.execute(Groovysh.groovy:185)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.Shell.leftShift(Shell.groovy:119)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.ShellRunner.work(ShellRunner.groovy:94)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$work(InteractiveShellRunner.groovy)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:130)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:150)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.work(InteractiveShellRunner.groovy:123)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.codehaus.groovy.tools.shell.ShellRunner.run(ShellRunner.groovy:58)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$run(InteractiveShellRunner.groovy)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:130)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:150)
    at org.codehaus.groovy.tools.shell.InteractiveShellRunner.run(InteractiveShellRunner.groovy:82)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.apache.tinkerpop.gremlin.console.Console.(Console.groovy:144)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)
    at org.apache.tinkerpop.gremlin.console.Console.main(Console.groovy:303)
com.google.cloud.bigtable.hbase1_0.BigtableConnection cannot be cast to org.apache.hadoop.hbase.client.ClusterConnection

我在其他情况下发现了同样例外的其他问题：Unable to connect to Google Bigtable using HBase REST api 那个补丁是否也能解决我与泰坦的这个例外？

1 个答案:

答案 0 :(得分：3)

泰坦不再维持;但是，您可以使用JanusGraph（Titan的一个叉子）和Google Cloud Bigtable;有关详细信息，请参阅以下指南：

GitHub托管JanusGraph releases。

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