连接到Docker中运行的HBase

Question

我无法连接到Windows上的Docker中运行的HBase（ banno / hbase-standalone映像）。 但是，我可以连接到本地安装的HBase。

banno / hbase-standalone图像使用以下命令运行：

docker run -d -p 2181:2181 -p 60000:60000 -p 60010:60010 -p 60020:60020 -p 60030:60030 banno/hbase-standalone

我还在boot2docker-vm上设置了端口转发（在Windows上运行时需要）：

我可以成功telnet到我的localhost上的所有端口。

接下来，这是我们在测试中使用的代码示例：

Configuration config = HBaseConfiguration.create();
config.clear();
config.setInt("timeout", 12000);
config.set("zookeeper.znode.parent", "/hbase");
config.set("hbase.zookeeper.quorum", "127.0.0.1");
config.set("hbase.zookeeper.property.clientPort", "2181");
config.set("hbase.master", "127.0.0.1:60000");

final Configuration configuration = HBaseConfiguration.create(config);

JobDefinition.Buildable.dumpProperties(configuration, newArrayList("hbase.*"));

HBaseAdmin.checkHBaseAvailable(config);

这导致以下异常

Exception in thread "main" org.apache.hadoop.hbase.MasterNotRunningException: com.google.protobuf.ServiceException: java.net.UnknownHostException: unknown host: a3e6c240af20
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$StubMaker.makeStub(HConnectionManager.java:1651)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$MasterServiceStubMaker.makeStub(HConnectionManager.java:1677)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getKeepAliveMasterService(HConnectionManager.java:1885)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.isMasterRunning(HConnectionManager.java:900)
    at org.apache.hadoop.hbase.client.HBaseAdmin.checkHBaseAvailable(HBaseAdmin.java:2366)
    at com.xxx.compute.hadoop.jobs.transaction.OurTest.main(OurTest.java:24)
Caused by: com.google.protobuf.ServiceException: java.net.UnknownHostException: unknown host: a3e6c240af20
    at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1674)
    at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1715)
    at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$BlockingStub.isMasterRunning(MasterProtos.java:42561)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$MasterServiceStubMaker.isMasterRunning(HConnectionManager.java:1688)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$StubMaker.makeStubNoRetries(HConnectionManager.java:1597)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$StubMaker.makeStub(HConnectionManager.java:1623)
    ... 5 more
Caused by: java.net.UnknownHostException: unknown host: a3e6c240af20
    at org.apache.hadoop.hbase.ipc.RpcClient$Connection.<init>(RpcClient.java:386)
    at org.apache.hadoop.hbase.ipc.RpcClient.createConnection(RpcClient.java:352)
    at org.apache.hadoop.hbase.ipc.RpcClient.getConnection(RpcClient.java:1526)
    at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1438)
    at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1657)
    ... 10 more

这是可以解释的。 我们运行Windows，这需要使用NAT运行boot2docker-vm虚拟机。 图像的Docker容器也在boot2docker-vm内运行，也使用NAT。 但是，端口对于运行测试的主机是“可见的”，因为Docker容器导出端口，而boot2docker-vm将端口转发给主机。 名称a3e6c240af20实际上来自Docker容器ID，因此a3e6c240af20可能是Docker容器的主机名：

CONTAINER ID        IMAGE                           COMMAND                CREATED             STATUS              PORTS                                                                                                                            NAMES
a3e6c240af20        banno/hbase-standalone:latest   "/bin/sh -c '/opt/hb   24 minutes ago      Up 24 minutes       0.0.0.0:2181->2181/tcp, 0.0.0.0:60000->60000/tcp, 0.0.0.0:60010->60010/tcp, 0.0.0.0:60020->60020/tcp, 0.0.0.0:60030->60030/tcp   agitated_wozniak

我不确定HBase通信是如何工作的，但显然它会对实例进行RPC调用。 HBase Docker返回其主机名，希望客户端在那里调用它。 但由于boot2docker-vm和Docker容器都使用NAT运行，因此主机无法看到Docker容器。

我尝试将a3e6c240af20添加到我的hosts文件中：

127.0.0.1 a3e6c240af20

然后我在RPC调用期间得到了一个不同的错误，这实际上对我没什么帮助：

Exception in thread "main" org.apache.hadoop.hbase.MasterNotRunningException: com.google.protobuf.ServiceException: java.lang.NullPointerException
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$StubMaker.makeStub(HConnectionManager.java:1651)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$MasterServiceStubMaker.makeStub(HConnectionManager.java:1677)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getKeepAliveMasterService(HConnectionManager.java:1885)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.isMasterRunning(HConnectionManager.java:900)
    at org.apache.hadoop.hbase.client.HBaseAdmin.checkHBaseAvailable(HBaseAdmin.java:2366)
    at com.xxx.compute.hadoop.jobs.transaction.OurTest.main(OurTest.java:24)
Caused by: com.google.protobuf.ServiceException: java.lang.NullPointerException
    at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1674)
    at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1715)
    at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$BlockingStub.isMasterRunning(MasterProtos.java:42561)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$MasterServiceStubMaker.isMasterRunning(HConnectionManager.java:1688)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$StubMaker.makeStubNoRetries(HConnectionManager.java:1597)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$StubMaker.makeStub(HConnectionManager.java:1623)
    ... 5 more
Caused by: java.lang.NullPointerException
    at org.apache.hadoop.hbase.ipc.RpcClient$Connection.writeRequest(RpcClient.java:1051)
    at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1440)
    at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1657)
    ... 10 more

有人建议如何解决这个问题吗？

Answer 1

尝试添加[boot2docker IP] a3e6c240af20而不是127.0.0.1因为HBase Java客户端需要到达您docker's host docker docker's host而不是到达localhost才能到达zookeeper（CMIIW）。 不确定它是否可行，但它可以在我的Windows中运行。

Answer 2

我使用oddpoet / hbase-cdh5 docker镜像来避免这个问题。

docker run -d -p 2181:2181 -p 60000:60000 -p 60010:60010 -p 60020:60020 -p 60030:60030 -h hbase oddpoet/hbase-cdh5

fig.yml

hbase:
    image: oddpoet/hbase-cdh5
    hostname: hbase
    ports:
     - "3181:2181"
     - "60000:60000"
     - "60010:60010"
     - "60020:60020"
     - "60030:60030"

我的配置文件

    conf.set("hbase.zookeeper.quorum", zkPath);
    conf.set("hbase.zookeeper.property.clientPort","2181");
    conf.set("zookeeper.znode.parent", "/hbase");

    conf.set("hbase.client.retries.number", "3");  // default 35
    conf.set("hbase.rpc.timeout", "10000");  // default 60 secs
    conf.set("hbase.rpc.shortoperation.timeout", "5000"); // default 10 secs