連接到Docker中運行的HBase

Question

我無法連接到Windows上的Docker中運行的HBase（ banno / hbase-standalone映像）。 但是，我可以連接到本地安裝的HBase。

banno / hbase-standalone圖像使用以下命令運行：

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

我還在boot2docker-vm上設置了端口轉發（在Windows上運行時需要）：

我可以成功telnet到我的localhost上的所有端口。

接下來，這是我們在測試中使用的代碼示例：

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);

這導致以下異常

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

這是可以解釋的。 我們運行Windows，這需要使用NAT運行boot2docker-vm虛擬機。 圖像的Docker容器也在boot2docker-vm內運行，也使用NAT。 但是，端口對於運行測試的主機是“可見的”，因為Docker容器導出端口，而boot2docker-vm將端口轉發給主機。 名稱a3e6c240af20實際上來自Docker容器ID，因此a3e6c240af20可能是Docker容器的主機名：

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

我不確定HBase通信是如何工作的，但顯然它會對實例進行RPC調用。 HBase Docker返回其主機名，希望客戶端在那里調用它。 但由於boot2docker-vm和Docker容器都使用NAT運行，因此主機無法看到Docker容器。

我嘗試將a3e6c240af20添加到我的hosts文件中：

127.0.0.1 a3e6c240af20

然后我在RPC調用期間得到了一個不同的錯誤，這實際上對我沒什么幫助：

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

有人建議如何解決這個問題嗎？

Answer 1

嘗試添加[boot2docker IP] a3e6c240af20而不是127.0.0.1因為HBase Java客戶端需要到達您docker's host docker docker's host而不是到達localhost才能到達zookeeper（CMIIW）。 不確定它是否可行，但它可以在我的Windows中運行。

Answer 2

我使用oddpoet / hbase-cdh5 docker鏡像來避免這個問題。

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