All geek questions in one place

Connecting to a HBase Remote Service Using Java

I have a small sample code in which I am trying to establish a connection with a remote HBase object. The code runs on the computer without installing HBase, and I'm trying to connect to the remote Ubuntu server on which it is installed and running. The IP address in the snippet below is of course just a placeholder.

The code is as follows:

public static void main(String[] args) {

    Configuration conf = HBaseConfiguration.create();
    HBaseAdmin admin = null;

    String ip = "10.10.10.10";
    String port = "2181";

    conf.set("hbase.zookeeper.quorum", ip);
    conf.set("hbase.zookeeper.property.clientPort", port);

    try {
        admin = new HBaseAdmin(conf);
        boolean bool = admin.tableExists("sensor_data");
        System.out.println("Table exists? " + bool);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

But for some reason I get this error:

org.apache.hadoop.hbase.DoNotRetryIOException: java.lang.IllegalAccessError: tried to access method com.google.common.base.Stopwatch.<init>()V from class org.apache.hadoop.hbase.zookeeper.MetaTableLocator
at org.apache.hadoop.hbase.client.RpcRetryingCaller.translateException(RpcRetryingCaller.java:229)
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:202)
at org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:320)
at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:295)
at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:160)
at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:155)
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:811)
at org.apache.hadoop.hbase.MetaTableAccessor.fullScan(MetaTableAccessor.java:602)
at org.apache.hadoop.hbase.MetaTableAccessor.tableExists(MetaTableAccessor.java:366)
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:303)
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:313)
at com.twoBM.Tests.HBaseWriter.main(HBaseWriter.java:26)
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:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: java.lang.IllegalAccessError: tried to access method com.google.common.base.Stopwatch.<init>()V from class org.apache.hadoop.hbase.zookeeper.MetaTableLocator
at org.apache.hadoop.hbase.zookeeper.MetaTableLocator.blockUntilAvailable(MetaTableLocator.java:596)
at org.apache.hadoop.hbase.zookeeper.MetaTableLocator.blockUntilAvailable(MetaTableLocator.java:580)
at org.apache.hadoop.hbase.zookeeper.MetaTableLocator.blockUntilAvailable(MetaTableLocator.java:559)
at org.apache.hadoop.hbase.client.ZooKeeperRegistry.getMetaRegionLocation(ZooKeeperRegistry.java:61)
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateMeta(ConnectionManager.java:1185)
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1152)
at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:300)
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:153)
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:61)
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200)
... 15 more

I use Gradle to create my project, and currently I use only two of the following dependencies:

compile 'org.apache.hive:hive-jdbc:2.1.0'
compile 'org.apache.hbase:hbase:1.1.6'

Anyone know to fix this problem? I tried to solve this problem, but without any links found providing the actual solution.

Regards

+4
2

Google Guava. Stopwatch Guava v.17 .

, HBase Java , Guava v.16 . (Maven/ Gradle/Classpath) , Guava v.17+. .

+8

maven shade . . ( ).

  <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.0.0</version>
            <executions>
                <execution>
                    <id>assemble-all</id>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <!--<finalName>PROJECT_NAME-${project.version}-shaded</finalName>-->
                        <relocations>
                            <relocation>
                                <pattern>com.google.common</pattern>
                                <shadedPattern>shaded.com.google.common</shadedPattern>
                            </relocation>
                            <relocation>
                                <pattern>com.google.protobuf</pattern>
                                <shadedPattern>shaded.com.google.protobuf</shadedPattern>
                            </relocation>
                        </relocations>
                        <artifactSet>
                            <includes>
                                <include>*:*</include>
                            </includes>
                        </artifactSet>
                    </configuration>
                </execution>
            </executions>
        </plugin>
-1

Source: https://habr.com/ru/post/1655963/

More articles:


All Articles