我试图找出如何处理hbase。删除Hbase列家族中的某些列时遇到问题。 我创建了一个表,一个列族:从hbase删除列
Configuration conf = HBaseConfiguration.create();
HBaseAdmin hbase = new HBaseAdmin(conf);
HTableDescriptor desc = new HTableDescriptor("new_table");
HColumnDescriptor cf = new HColumnDescriptor("zz".getBytes());
desc.addFamily(cf);
hbase.createTable(desc);
然后,我插入一些数据吧:
private static void putData(int j) throws IOException {
for (int i=1; i <= j; i++) {
String column = "EEE" + i;
String value = "JJ" + i;
HTable table = new HTable(conf, "new_table");
Put p = new Put(Bytes.toBytes("zz"));
p.add(Bytes.toBytes("zz"), Bytes.toBytes(column),
Bytes.toBytes(value));
table.put(p);
}
}
阅读一些文档后,我试图从删除一切列族 “ZZ” 与此代码:
for (int i=1; i <= 1000; i++) {
String column = "EEE" + i;
HTable table = new HTable(conf, "new_table");
Delete delete = new Delete();
delete.deleteColumns(Bytes.toBytes("zz"), Bytes.toBytes(column));
table.delete(delete);
}
但我得到异常:
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:zookeeper.version=3.4.3-1240972, built on 02/06/2012 10:48 GMT
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:host.name=192.168.1.107
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:java.version=1.7.0-ea
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:java.vendor=Oracle Corporation
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:java.home=/Library/Java/JavaVirtualMachines/JDK 1.7.0 Developer Preview.jdk/Contents/Home/jre
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:java.class.path=/Users/urijvoskresenskij/Documents/workspace/Hbase/bin:/Users/urijvoskresenskij/hbase-0.94.3/lib/activation-1.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/asm-3.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/avro-1.5.3.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/avro-ipc-1.5.3.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-beanutils-1.7.0.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-beanutils-core-1.8.0.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-cli-1.2.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-codec-1.4.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-collections-3.2.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-configuration-1.6.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-digester-1.8.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-el-1.0.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-httpclient-3.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-io-2.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-lang-2.5.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-logging-1.1.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-math-2.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/commons-net-1.4.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/core-3.1.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/guava-11.0.2.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/hadoop-core-1.0.4.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/high-scale-lib-1.1.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/httpclient-4.1.2.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/httpcore-4.1.3.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jackson-core-asl-1.8.8.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jackson-jaxrs-1.8.8.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jackson-mapper-asl-1.8.8.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jackson-xc-1.8.8.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jamon-runtime-2.3.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jasper-compiler-5.5.23.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jasper-runtime-5.5.23.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jaxb-api-2.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jaxb-impl-2.2.3-1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jersey-core-1.8.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jersey-json-1.8.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jersey-server-1.8.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jettison-1.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jetty-6.1.26.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jetty-util-6.1.26.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jruby-complete-1.6.5.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jsp-2.1-6.1.14.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jsp-api-2.1-6.1.14.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/jsr305-1.3.9.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/junit-4.10-HBASE-1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/libthrift-0.8.0.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/log4j-1.2.16.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/metrics-core-2.1.2.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/netty-3.2.4.Final.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/protobuf-java-2.4.0a.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/servlet-api-2.5-6.1.14.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/slf4j-api-1.4.3.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/slf4j-log4j12-1.4.3.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/snappy-java-1.0.3.2.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/stax-api-1.0.1.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/velocity-1.7.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/xmlenc-0.52.jar:/Users/urijvoskresenskij/hbase-0.94.3/lib/zookeeper-3.4.3.jar:/Users/urijvoskresenskij/hbase-0.94.3/hbase-0.94.3-tests.jar:/Users/urijvoskresenskij/hbase-0.94.3/hbase-0.94.3.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.aop-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.asm-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.aspects-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.beans-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.context-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.context.support-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.core-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.expression-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.instrument-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.instrument.tomcat-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.jdbc-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.jms-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.orm-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.oxm-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.test-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.transaction-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.web-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.web.portlet-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.web.servlet-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/dist/org.springframework.web.struts-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Downloads/commons-logging-1.1.1/commons-logging-1.1.1.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.web-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.aop-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.asm-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.aspects-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.beans-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.context-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.context.support-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.core-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.expression-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.instrument-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.instrument.tomcat-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.jdbc-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.jms-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.orm-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.oxm-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.test-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.transaction-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.web.portlet-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.web.servlet-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Desktop/spring-framework-3.1.3.RELEASE/src/org.springframework.web.struts-sources-3.1.3.RELEASE.jar:/Users/urijvoskresenskij/Downloads/commons-logging-1.1.1/commons-logging-1.1.1-javadoc.jar:/Users/urijvoskresenskij/Downloads/commons-logging-1.1.1/commons-logging-1.1.1-sources.jar:/Users/urijvoskresenskij/Downloads/commons-logging-1.1.1/commons-logging-adapters-1.1.1.jar:/Users/urijvoskresenskij/Downloads/commons-logging-1.1.1/commons-logging-api-1.1.1.jar:/Users/urijvoskresenskij/Downloads/commons-logging-1.1.1/commons-logging-tests.jar
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:java.library.path=/Users/urijvoskresenskij/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:java.io.tmpdir=/var/folders/_q/z5blmlxs39d4pmmv1fj9mh500000gn/T/
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:java.compiler=<NA>
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:os.name=Mac OS X
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:os.arch=x86_64
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:os.version=10.7.5
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:user.name=urijvoskresenskij
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:user.home=/Users/urijvoskresenskij
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Client environment:user.dir=/Users/urijvoskresenskij/Documents/workspace/Hbase
13/01/15 15:02:24 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=localhost:2181 sessionTimeout=180000 watcher=hconnection
13/01/15 15:02:24 INFO zookeeper.ClientCnxn: Opening socket connection to server /0:0:0:0:0:0:0:1:2181
13/01/15 15:02:24 INFO zookeeper.RecoverableZooKeeper: The identifier of this process is [email protected]
13/01/15 15:02:24 INFO client.ZooKeeperSaslClient: Client will not SASL-authenticate because the default JAAS configuration section 'Client' could not be found. If you are not using SASL, you may ignore this. On the other hand, if you expected SASL to work, please fix your JAAS configuration.
13/01/15 15:02:24 INFO zookeeper.ClientCnxn: Socket connection established to localhost/0:0:0:0:0:0:0:1:2181, initiating session
13/01/15 15:02:24 INFO zookeeper.ClientCnxn: Session establishment complete on server localhost/0:0:0:0:0:0:0:1:2181, sessionid = 0x13c3c95c6d50004, negotiated timeout = 40000
Exception in thread "main" java.lang.IllegalArgumentException: Row is null
at org.apache.hadoop.hbase.KeyValue.createByteArray(KeyValue.java:547)
at org.apache.hadoop.hbase.KeyValue.<init>(KeyValue.java:436)
at org.apache.hadoop.hbase.KeyValue.<init>(KeyValue.java:405)
at org.apache.hadoop.hbase.KeyValue.<init>(KeyValue.java:384)
at org.apache.hadoop.hbase.KeyValue.<init>(KeyValue.java:354)
at org.apache.hadoop.hbase.client.Delete.deleteColumns(Delete.java:209)
at org.apache.hadoop.hbase.client.Delete.deleteColumns(Delete.java:192)
at MainHBase.deleteData(MainHBase.java:74)
at MainHBase.main(MainHBase.java:85)
也许有人知道如何正确删除数据?
也许尝试,如果你有通过命令行或脚本麻烦的GUI? Cloudera Hue有一个很棒的HBase应用程序。 (http://www.gethue.com) –