hbase统计表的行数的三种方法

有些时候需要我们去统计某一个hbase表的行数，由于hbase本身不支持SQL语言，只能通过其他方式实现。

可以通过一下几种方式实现hbase表的行数统计工作:

这里有一张hbase表test:test：

hbase(main):009:0> scan 'test:test'

ROW                              COLUMN+CELL

 1                               column=info:name, timestamp=1590221288866, value=tom

 2                               column=info:name, timestamp=1590221288866, value=jack

 3                               column=info:name, timestamp=1590221288866, value=alice

3 row(s) in 0.0700 seconds

1.count命令

最直接的方式是在hbase shell中执行count的命令可以统计行数。

hbase(main):010:0> count 'test:test'

3 row(s) in 0.0170 seconds

=> 3

其中，INTERVAL为统计的行数间隔，默认为1000，CACHE为统计的数据缓存。这种方式效率很低，如果表行数很大的话不建议采用这种方式。

2. 调用Mapreduce

$HBASE_HOME/bin/hbase   org.apache.hadoop.hbase.mapreduce.RowCounter ‘tablename’

这种方式效率比上一种要搞很多，调用的hbase jar中自带的统计行数的类。

hbase  org.apache.hadoop.hbase.mapreduce.RowCounter 'test:test'

中间走的是一个MR任务，可以看一下控制台的输出信息：

SLF4J: Class path contains multiple SLF4J bindings.

SLF4J: Found binding in [jar:file:/home/hadoop/hbase/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]

SLF4J: Found binding in [jar:file:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/slf4j-log4j12-1.7.10.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]

2020-05-23 16:40:57,546 WARN  [main] util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

2020-05-23 16:41:00,256 WARN  [main] mapreduce.TableMapReduceUtil: The hbase-prefix-tree module jar containing PrefixTreeCodec is not present.  Continuing without it.

2020-05-23 16:41:00,784 INFO  [main] client.RMProxy: Connecting to ResourceManager at master1.hadoop/192.168.112.210:8032

2020-05-23 16:41:13,932 INFO  [main] zookeeper.RecoverableZooKeeper: Process identifier=hconnection-0x56ace400 connecting to ZooKeeper ensemble=master1.hadoop:2181,slave2.hadoop:2181,slave3.hadoop:2181

2020-05-23 16:41:13,963 INFO  [main] zookeeper.ZooKeeper: Client environment:zookeeper.version=3.4.6-1569965, built on 02/20/2014 09:09 GMT

2020-05-23 16:41:13,964 INFO  [main] zookeeper.ZooKeeper: Client environment:host.name=slave3.hadoop

2020-05-23 16:41:13,964 INFO  [main] zookeeper.ZooKeeper: Client environment:java.version=1.8.0_73

2020-05-23 16:41:13,964 INFO  [main] zookeeper.ZooKeeper: Client environment:java.vendor=Oracle Corporation

2020-05-23 16:41:13,964 INFO  [main] zookeeper.ZooKeeper: Client environment:java.home=/home/hadoop/jdk1.8.0_73/jre

2020-05-23 16:41:13,964 INFO  [main] zookeeper.ZooKeeper: Client environment:java.class.path=/home/hadoop/hbase/conf:/home/hadoop/jdk1.8.0_73/lib/tools.jar:/home/hadoop/hbase:/home/hadoop/hbase/lib/activation-1.1.jar:/home/hadoop/hbase/lib/antisamy-1.5.3.jar:/home/hadoop/hbase/lib/aopalliance-1.0.jar:/home/hadoop/hbase/lib/apacheds-i18n-2.0.0-M15.jar:/home/hadoop/hbase/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/home/hadoop/hbase/lib/api-asn1-api-1.0.0-M20.jar:/home/hadoop/hbase/lib/api-util-1.0.0-M20.jar:/home/hadoop/hbase/lib/asm-3.1.jar:/home/hadoop/hbase/lib/avro-1.7.4.jar:/home/hadoop/hbase/lib/batik-css-1.8.jar:/home/hadoop/hbase/lib/batik-ext-1.8.jar:/home/hadoop/hbase/lib/batik-util-1.8.jar:/home/hadoop/hbase/lib/bsh-core-2.0b4.jar:/home/hadoop/hbase/lib/commons-beanutils-1.7.0.jar:/home/hadoop/hbase/lib/commons-beanutils-core-1.8.3.jar:/home/hadoop/hbase/lib/commons-cli-1.2.jar:/home/hadoop/hbase/lib/commons-codec-1.9.jar:/home/hadoop/hbase/lib/commons-collections-3.2.2.jar:/home/hadoop/hbase/lib/commons-compress-1.4.1.jar:/home/hadoop/hbase/lib/commons-configuration-1.6.jar:/home/hadoop/hbase/lib/commons-daemon-1.0.13.jar:/home/hadoop/hbase/lib/commons-digester-1.8.jar:/home/hadoop/hbase/lib/commons-el-1.0.jar:/home/hadoop/hbase/lib/commons-fileupload-1.3.1.jar:/home/hadoop/hbase/lib/commons-httpclient-3.1.jar:/home/hadoop/hbase/lib/commons-io-2.4.jar:/home/hadoop/hbase/lib/commons-lang-2.6.jar:/home/hadoop/hbase/lib/commons-logging-1.2.jar:/home/hadoop/hbase/lib/commons-math-2.2.jar:/home/hadoop/hbase/lib/commons-math3-3.1.1.jar:/home/hadoop/hbase/lib/commons-net-3.1.jar:/home/hadoop/hbase/lib/disruptor-3.3.0.jar:/home/hadoop/hbase/lib/esapi-2.1.0.1.jar:/home/hadoop/hbase/lib/findbugs-annotations-1.3.9-1.jar:/home/hadoop/hbase/lib/guava-12.0.1.jar:/home/hadoop/hbase/lib/guice-3.0.jar:/home/hadoop/hbase/lib/guice-servlet-3.0.jar:/home/hadoop/hbase/lib/hadoop-annotations-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-auth-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-client-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-common-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-hdfs-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-mapreduce-client-app-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-mapreduce-client-common-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-mapreduce-client-core-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-mapreduce-client-jobclient-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-mapreduce-client-shuffle-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-yarn-api-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-yarn-client-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-yarn-common-2.5.1.jar:/home/hadoop/hbase/lib/hadoop-yarn-server-common-2.5.1.jar:/home/hadoop/hbase/lib/hbase-annotations-1.2.2.jar:/home/hadoop/hbase/lib/hbase-annotations-1.2.2-tests.jar:/home/hadoop/hbase/lib/hbase-client-1.2.2.jar:/home/hadoop/hbase/lib/hbase-common-1.2.2.jar:/home/hadoop/hbase/lib/hbase-common-1.2.2-tests.jar:/home/hadoop/hbase/lib/hbase-examples-1.2.2.jar:/home/hadoop/hbase/lib/hbase-external-blockcache-1.2.2.jar:/home/hadoop/hbase/lib/hbase-hadoop2-compat-1.2.2.jar:/home/hadoop/hbase/lib/hbase-hadoop-compat-1.2.2.jar:/home/hadoop/hbase/lib/hbase-it-1.2.2.jar:/home/hadoop/hbase/lib/hbase-it-1.2.2-tests.jar:/home/hadoop/hbase/lib/hbase-prefix-tree-1.2.2.jar:/home/hadoop/hbase/lib/hbase-procedure-1.2.2.jar:/home/hadoop/hbase/lib/hbase-protocol-1.2.2.jar:/home/hadoop/hbase/lib/hbase-resource-bundle-1.2.2.jar:/home/hadoop/hbase/lib/hbase-rest-1.2.2.jar:/home/hadoop/hbase/lib/hbase-server-1.2.2.jar:/home/hadoop/hbase/lib/hbase-server-1.2.2-tests.jar:/home/hadoop/hbase/lib/hbase-shell-1.2.2.jar:/home/hadoop/hbase/lib/hbase-thrift-1.2.2.jar:/home/hadoop/hbase/lib/htrace-core-3.1.0-incubating.jar:/home/hadoop/hbase/lib/httpclient-4.2.5.jar:/home/hadoop/hbase/lib/httpcore-4.4.1.jar:/home/hadoop/hbase/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/hbase/lib/jackson-jaxrs-1.9.13.jar:/home/hadoop/hbase/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/hbase/lib/jackson-xc-1.9.13.jar:/home/hadoop/hbase/lib/jamon-runtime-2.4.1.jar:/home/hadoop/hbase/lib/jasper-compiler-5.5.23.jar:/home/hadoop/hbase/lib/jasper-runtime-5.5.23.jar:/home/hadoop/hbase/lib/javax.inject-1.jar:/home/hadoop/hbase/lib/java-xmlbuilder-0.4.jar:/home/hadoop/hbase/lib/jaxb-api-2.2.2.jar:/home/hadoop/hbase/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/hbase/lib/jcodings-1.0.8.jar:/home/hadoop/hbase/lib/jersey-client-1.9.jar:/home/hadoop/hbase/lib/jersey-core-1.9.jar:/home/hadoop/hbase/lib/jersey-guice-1.9.jar:/home/hadoop/hbase/lib/jersey-json-1.9.jar:/home/hadoop/hbase/lib/jersey-server-1.9.jar:/home/hadoop/hbase/lib/jets3t-0.9.0.jar:/home/hadoop/hbase/lib/jettison-1.3.3.jar:/home/hadoop/hbase/lib/jetty-6.1.26.jar:/home/hadoop/hbase/lib/jetty-sslengine-6.1.26.jar:/home/hadoop/hbase/lib/jetty-util-6.1.26.jar:/home/hadoop/hbase/lib/joni-2.1.2.jar:/home/hadoop/hbase/lib/jruby-complete-1.6.8.jar:/home/hadoop/hbase/lib/jsch-0.1.42.jar:/home/hadoop/hbase/lib/jsp-2.1-6.1.14.jar:/home/hadoop/hbase/lib/jsp-api-2.1-6.1.14.jar:/home/hadoop/hbase/lib/jsr305-1.3.9.jar:/home/hadoop/hbase/lib/junit-4.12.jar:/home/hadoop/hbase/lib/leveldbjni-all-1.8.jar:/home/hadoop/hbase/lib/libthrift-0.9.3.jar:/home/hadoop/hbase/lib/log4j-1.2.17.jar:/home/hadoop/hbase/lib/metrics-core-2.2.0.jar:/home/hadoop/hbase/lib/nekohtml-1.9.16.jar:/home/hadoop/hbase/lib/netty-all-4.0.23.Final.jar:/home/hadoop/hbase/lib/paranamer-2.3.jar:/home/hadoop/hbase/lib/protobuf-java-2.5.0.jar:/home/hadoop/hbase/lib/servlet-api-2.5-6.1.14.jar:/home/hadoop/hbase/lib/servlet-api-2.5.jar:/home/hadoop/hbase/lib/slf4j-api-1.7.7.jar:/home/hadoop/hbase/lib/slf4j-log4j12-1.7.5.jar:/home/hadoop/hbase/lib/snappy-java-1.0.4.1.jar:/home/hadoop/hbase/lib/spymemcached-2.11.6.jar:/home/hadoop/hbase/lib/xalan-2.7.0.jar:/home/hadoop/hbase/lib/xml-apis-1.3.03.jar:/home/hadoop/hbase/lib/xml-apis-ext-1.3.04.jar:/home/hadoop/hbase/lib/xmlenc-0.52.jar:/home/hadoop/hbase/lib/xom-1.2.5.jar:/home/hadoop/hbase/lib/xz-1.0.jar:/home/hadoop/hbase/lib/zookeeper-3.4.6.jar:/home/hadoop/hadoop-2.7.2/etc/hadoop:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jersey-core-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/asm-3.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/netty-3.6.2.Final.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jetty-util-6.1.26.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-httpclient-3.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/curator-client-2.7.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-digester-1.8.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/httpcore-4.2.5.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-net-3.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/xmlenc-0.52.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jsch-0.1.42.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-logging-1.1.3.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/stax-api-1.0-2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jersey-server-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/curator-recipes-2.7.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/htrace-core-3.1.0-incubating.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/activation-1.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/log4j-1.2.17.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-codec-1.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-compress-1.4.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-cli-1.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/mockito-all-1.8.5.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jetty-6.1.26.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/slf4j-api-1.7.10.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jsr305-3.0.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-configuration-1.6.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/guava-11.0.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-collections-3.2.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/curator-framework-2.7.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-math3-3.1.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jsp-api-2.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jettison-1.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jersey-json-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/xz-1.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/junit-4.11.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-lang-2.6.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/hadoop-annotations-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/avro-1.7.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/commons-io-2.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/hadoop-auth-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/hamcrest-core-1.3.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/jets3t-0.9.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/gson-2.2.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/httpclient-4.2.5.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/paranamer-2.3.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/servlet-api-2.5.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/lib/zookeeper-3.4.6.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/hadoop-common-2.7.2-tests.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/hadoop-common-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/common/hadoop-nfs-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/asm-3.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/leveldbjni-all-1.8.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/htrace-core-3.1.0-incubating.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/jsr305-3.0.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/guava-11.0.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/commons-io-2.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/netty-all-4.0.23.Final.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/hadoop-hdfs-nfs-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/hadoop-hdfs-2.7.2-tests.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/hdfs/hadoop-hdfs-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jersey-core-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/guice-3.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/asm-3.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/aopalliance-1.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jersey-server-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/activation-1.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/log4j-1.2.17.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/commons-codec-1.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/javax.inject-1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/zookeeper-3.4.6-tests.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/commons-cli-1.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jetty-6.1.26.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jsr305-3.0.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/guava-11.0.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/commons-collections-3.2.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jersey-client-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jettison-1.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jersey-json-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/xz-1.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/commons-lang-2.6.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/commons-io-2.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/servlet-api-2.5.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-server-common-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-api-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-client-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-server-tests-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-registry-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-common-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/yarn/hadoop-yarn-server-sharedcachemanager-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/guice-3.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/asm-3.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/javax.inject-1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/xz-1.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/junit-4.11.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/hadoop-annotations-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.7.2.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.2-tests.jar:/home/hadoop/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.7.2.jar:/home/hadoop/hadoop-2.7.2/contrib/capacity-scheduler/*.jar

2020-05-23 16:41:13,983 INFO  [main] zookeeper.ZooKeeper: Client environment:java.library.path=/home/hadoop/hadoop-2.7.2/lib/native

2020-05-23 16:41:13,984 INFO  [main] zookeeper.ZooKeeper: Client environment:java.io.tmpdir=/tmp

2020-05-23 16:41:13,985 INFO  [main] zookeeper.ZooKeeper: Client environment:java.compiler=<NA>

2020-05-23 16:41:13,985 INFO  [main] zookeeper.ZooKeeper: Client environment:os.name=Linux

2020-05-23 16:41:13,985 INFO  [main] zookeeper.ZooKeeper: Client environment:os.arch=amd64

2020-05-23 16:41:13,985 INFO  [main] zookeeper.ZooKeeper: Client environment:os.version=2.6.32-431.el6.x86_64

2020-05-23 16:41:13,986 INFO  [main] zookeeper.ZooKeeper: Client environment:user.name=hadoop

2020-05-23 16:41:13,986 INFO  [main] zookeeper.ZooKeeper: Client environment:user.home=/home/hadoop

2020-05-23 16:41:13,986 INFO  [main] zookeeper.ZooKeeper: Client environment:user.dir=/home/hadoop

2020-05-23 16:41:13,989 INFO  [main] zookeeper.ZooKeeper: Initiating client connection, connectString=master1.hadoop:2181,slave2.hadoop:2181,slave3.hadoop:2181 sessionTimeout=90000 watcher=hconnection-0x56ace4000x0, quorum=master1.hadoop:2181,slave2.hadoop:2181,slave3.hadoop:2181, baseZNode=/hbase

2020-05-23 16:41:14,403 INFO  [main-SendThread(master1.hadoop:2181)] zookeeper.ClientCnxn: Opening socket connection to server master1.hadoop/192.168.112.210:2181. Will not attempt to authenticate using SASL (unknown error)

2020-05-23 16:41:14,427 INFO  [main-SendThread(master1.hadoop:2181)] zookeeper.ClientCnxn: Socket connection established to master1.hadoop/192.168.112.210:2181, initiating session

2020-05-23 16:41:14,477 INFO  [main-SendThread(master1.hadoop:2181)] zookeeper.ClientCnxn: Session establishment complete on server master1.hadoop/192.168.112.210:2181, sessionid = 0x724072e9280009, negotiated timeout = 90000

2020-05-23 16:41:14,964 INFO  [main] util.RegionSizeCalculator: Calculating region sizes for table "test:test".

2020-05-23 16:41:17,211 INFO  [main] client.ConnectionManager$HConnectionImplementation: Closing master protocol: MasterService

2020-05-23 16:41:17,212 INFO  [main] client.ConnectionManager$HConnectionImplementation: Closing zookeeper sessionid=0x724072e9280009

2020-05-23 16:41:17,218 INFO  [main-EventThread] zookeeper.ClientCnxn: EventThread shut down

2020-05-23 16:41:17,219 INFO  [main] zookeeper.ZooKeeper: Session: 0x724072e9280009 closed

2020-05-23 16:41:17,501 INFO  [main] mapreduce.JobSubmitter: number of splits:1

2020-05-23 16:41:17,538 INFO  [main] Configuration.deprecation: io.bytes.per.checksum is deprecated. Instead, use dfs.bytes-per-checksum

2020-05-23 16:41:18,619 INFO  [main] mapreduce.JobSubmitter: Submitting tokens for job: job_1590219117109_0003

2020-05-23 16:41:20,433 INFO  [main] impl.YarnClientImpl: Submitted application application_1590219117109_0003

2020-05-23 16:41:20,589 INFO  [main] mapreduce.Job: The url to track the job: http://master1.hadoop:8088/proxy/application_1590219117109_0003/

2020-05-23 16:41:20,590 INFO  [main] mapreduce.Job: Running job: job_1590219117109_0003

2020-05-23 16:41:48,592 INFO  [main] mapreduce.Job: Job job_1590219117109_0003 running in uber mode : false

2020-05-23 16:41:48,594 INFO  [main] mapreduce.Job:  map 0% reduce 0%

2020-05-23 16:42:02,228 INFO  [main] mapreduce.Job:  map 100% reduce 0%

2020-05-23 16:42:03,257 INFO  [main] mapreduce.Job: Job job_1590219117109_0003 completed successfully

2020-05-23 16:42:03,615 INFO  [main] mapreduce.Job: Counters: 31

	File System Counters

		FILE: Number of bytes read=0

		FILE: Number of bytes written=147864

		FILE: Number of read operations=0

		FILE: Number of large read operations=0

		FILE: Number of write operations=0

		HDFS: Number of bytes read=74

		HDFS: Number of bytes written=0

		HDFS: Number of read operations=1

		HDFS: Number of large read operations=0

		HDFS: Number of write operations=0

	Job Counters

		Launched map tasks=1

		Data-local map tasks=1

		Total time spent by all maps in occupied slots (ms)=11764

		Total time spent by all reduces in occupied slots (ms)=0

		Total time spent by all map tasks (ms)=11764

		Total vcore-seconds taken by all map tasks=11764

		Total megabyte-seconds taken by all map tasks=12046336

	Map-Reduce Framework

		Map input records=3

		Map output records=0

		Input split bytes=74

		Spilled Records=0

		Failed Shuffles=0

		Merged Map outputs=0

		GC time elapsed (ms)=150

		CPU time spent (ms)=2840

		Physical memory (bytes) snapshot=118710272

		Virtual memory (bytes) snapshot=2067132416

		Total committed heap usage (bytes)=30474240

	org.apache.hadoop.hbase.mapreduce.RowCounter$RowCounterMapper$Counters

		ROWS=3

	File Input Format Counters

		Bytes Read=0

	File Output Format Counters

		Bytes Written=0

3.Hive over Hbase

通过新建hive外部表，关联hbase表，使用sql即可统计出来hbase表的行数。

hive over hbase 表的建表语句为：

/*创建hive与hbase的关联表*/

CREATE TABLE hive_hbase_1(key INT,value STRING)

STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'

WITH SERDEPROPERTIES ("hbase.columns.mapping"=":key,cf:val")

TBLPROPERTIES("hbase.table.name"="t_hive","hbase.table.default.storage.type"="binary");

/*hive关联已经存在的hbase*/

CREATE EXTERNAL TABLE hive_hbase_1(key INT,value STRING)

STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'

WITH SERDEPROPERTIES ("hbase.columns.mapping"=":key,cf:val")

TBLPROPERTIES("hbase.table.name"="t_hive","hbase.table.default.storage.type"="binary");

Hive关联Hbase表具体可以看前面这篇文章，Hive整合Hbase。

猜你喜欢

SparkStreaming实时计算pv和uv

hbase统计表的行数的三种方法的更多相关文章

Hibernate 查询sql结果行数的几种方法
一.前言这个东西,难度几乎没有,就是繁琐. 一条简单的select count(*) from table_name 都能有多种书写方式. 总是忘,这里记录下. 一 .通过Criteria 查询 C ...
C# DataGridView显示行号的三种方法
方法一: 网上最常见的做法是用DataGridView的RowPostPaint事件在RowHeaderCell中绘制行号: private void dgGrid_RowPostPaint( obj ...
MFC接收命令行参数的三种方法
方法一: CString sCmdline = ::GetCommandLine(); AfxMessageBox(sCmdline); 将获取到 "C:\test\app.exe -1 - ...
datalist、repearter、gridview显示行号的三种方法或者是获取datalist行id
原文发布时间为:2009-05-06 -- 来源于本人的百度文章 [由搬家工具导入] 1. if you are using SQL Server, try select identity(int,1 ...
JavaScript计算平方数的三种方法
console.log(2*10**3) console.log(2*Math.pow(10,3)) console.log(2e3) console.log(2*1e3) console.log(2 ...
Hbase 统计表行数的3种方式总结
有些时候需要我们去统计某一个Hbase表的行数,由于hbase本身不支持SQL语言,只能通过其他方式实现.可以通过一下几种方式实现hbase表的行数统计工作: 1.count命令最直接的方式是在hb ...
c语言求回文数的三种算法的描述
c语言求回文数的三种算法的描述题目描述注意:(这些回文数都没有前导0) 1位的回文数有0,1,2,3,4,5,6,7,8,9 共10个: 2位的回文数有11,22,33,44,55,66,77,8 ...
Linux下查看线程数的几种方法汇总
Linux下查看线程数的几种方法汇总作者:尹正杰版权声明:原创作品,谢绝转载!否则将追究法律责任. 一.Linux下查看某个进程的线程数量 pstree命令以树状图显示进程间的关系(display ...
python更新数据库脚本三种方法
最近项目的两次版本迭代中,根据业务需求的变化,需要对数据库进行更新,两次分别使用了不同的方式进行更新. 第一种:使用python的MySQLdb模块利用原生的sql语句进行更新 import MySQ ...

随机推荐

lombok，Invalid byte tag in constant pool: 19
今天偶到一个奇怪的问题: 三台生产服务器部署同样的代码,同样的tomcat ,jdk等环境. 其中有一台服务器启动时报lombok-1.18.6.jar! Invalid byte tag in ...
.NET 平台系列6 .NET Core 发展历程
系列目录 [已更新最新开发文章,点击查看详细] 在我的上一篇博客<.NET平台系列5 .NET Core 简介>中主要介绍了.NETCore的基本情况,主要包括.NET跨平台的缘由 ...
03.14 ICPC训练联盟周赛，Preliminaries for Benelux Algorithm Programming Contest 2019
A .Architecture 题意:其实就是想让你找到两行数的最大值,然后比较是否相同,如果相同输出'possible',不同则输出'impossible' 思路:直接遍历寻找最大值,然后比较即可 ...
redis分布式锁-可重入锁
redis分布式锁-可重入锁上篇redis实现的分布式锁,有一个问题,它不可重入. 所谓不可重入锁,即若当前线程执行某个方法已经获取了该锁,那么在方法中尝试再次获取锁时,就会获取不到被阻塞. 同一个 ...
简单对比vue2.x与vue3.x响应式及新功能
简单对比vue2.x与vue3.x响应式对响应方式来讲:Vue3.x 将使用Proxy ,取代Vue2.x 版本的 Object.defineProperty. 为何要将Object.defineP ...
Envoy：TLS双向认证
环境准备主机角色数量 front-envoy front envoy 1 service envoy 作为内部后端的envoy 2 end 后端应用程序 2 访问 / front-envoy = ...
3.2-3 tac、more
3.2 tac命令是cat的反向拼写,因此命令的功能为反向显示文件内容.cat命令是从第一行开始读取文本输出的,而tac则是从最后一行开始读取文本并进行反向输出,需要注意的是,2个命令都是以一行文本 ...
WIFF SD卡
https://detail.tmall.com/item.htm?spm=a230r.1.14.1.2d4d6923Fq3Hgx&id=36945441834&cm_id=14010 ...
unity项目字符串转为Vector3和Quaternion
运用环境:一般在读取csv表格的数据时是string类型转为Vector3或者Quaternion类型字符串格式:x,x,x /x,x,x,x (英文逗号) 方法: /// <summary& ...
痞子衡嵌入式：关于i.MXRT中FlexSPI外设lookupTable里配置Normal read的一个小误区
大家好,我是痞子衡,是正经搞技术的痞子.今天痞子衡给大家介绍的是i.MXRT中FlexSPI外设lookupTable里配置Normal read的一个小误区. 关于串行四线NOR Flash,当其作 ...