hbase shell 命令

进入hbase shell console

[hadoop@mylab2 hbase]$ ./bin/hbase shell2016-09-18 15:01:36,773 WARN  [main] util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicableSLF4J: Class path contains multiple SLF4J bindings.SLF4J: Found binding in [jar:file:/usr/local/hbase/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]SLF4J: Found binding in [jar:file:/usr/local/hadoop/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]HBase Shell; enter 'help' for list of supported commands.Type "exit" to leave the HBase ShellVersion 1.2.1, r8d8a7107dc4ccbf36a92f64675dc60392f85c015, Wed Mar 30 11:19:21 CDT 2016hbase(main):001:0>

查询服务器状态

hbase(main):007:0> status1 active master, 0 backup masters, 2 servers, 0 dead, 1.5000 average load

查看hbase版本

hbase(main):008:0> version1.2.1, r8d8a7107dc4ccbf36a92f64675dc60392f85c015, Wed Mar 30 11:19:21 CDT 2016

命令帮助

hbase(main):002:0> help getERROR: wrong number of arguments (0 for 2)Here is some help for this command:Get row or cell contents; pass table name, row, and optionallya dictionary of column(s), timestamp, timerange and versions. Examples:  hbase> get 'ns1:t1', 'r1'  hbase> get 't1', 'r1'  hbase> get 't1', 'r1', {TIMERANGE => [ts1, ts2]}  hbase> get 't1', 'r1', {COLUMN => 'c1'}  hbase> get 't1', 'r1', {COLUMN => ['c1', 'c2', 'c3']}  hbase> get 't1', 'r1', {COLUMN => 'c1', TIMESTAMP => ts1}  hbase> get 't1', 'r1', {COLUMN => 'c1', TIMERANGE => [ts1, ts2], VERSIONS => 4}  hbase> get 't1', 'r1', {COLUMN => 'c1', TIMESTAMP => ts1, VERSIONS => 4}  hbase> get 't1', 'r1', {FILTER => "ValueFilter(=, 'binary:abc')"}  hbase> get 't1', 'r1', 'c1'  hbase> get 't1', 'r1', 'c1', 'c2'  hbase> get 't1', 'r1', ['c1', 'c2']  hbase> get 't1', 'r1', {COLUMN => 'c1', ATTRIBUTES => {'mykey'=>'myvalue'}}  hbase> get 't1', 'r1', {COLUMN => 'c1', AUTHORIZATIONS => ['PRIVATE','SECRET']}  hbase> get 't1', 'r1', {CONSISTENCY => 'TIMELINE'}  hbase> get 't1', 'r1', {CONSISTENCY => 'TIMELINE', REGION_REPLICA_ID => 1}Besides the default 'toStringBinary' format, 'get' also supports custom formatting bycolumn.  A user can define a FORMATTER by adding it to the column name in the getspecification.  The FORMATTER can be stipulated:  1. either as a org.apache.hadoop.hbase.util.Bytes method name (e.g, toInt, toString) 2. or as a custom class followed by method name: e.g. 'c(MyFormatterClass).format'.Example formatting cf:qualifier1 and cf:qualifier2 both as Integers:   hbase> get 't1', 'r1' {COLUMN => ['cf:qualifier1:toInt',    'cf:qualifier2:c(org.apache.hadoop.hbase.util.Bytes).toInt'] } Note that you can specify a FORMATTER by column only (cf:qualifier).  You cannot specifya FORMATTER for all columns of a column family.    The same commands also can be run on a reference to a table (obtained via get_table orcreate_table). Suppose you had a reference t to table 't1', the corresponding commandswould be:  hbase> t.get 'r1'  hbase> t.get 'r1', {TIMERANGE => [ts1, ts2]}  hbase> t.get 'r1', {COLUMN => 'c1'}  hbase> t.get 'r1', {COLUMN => ['c1', 'c2', 'c3']}  hbase> t.get 'r1', {COLUMN => 'c1', TIMESTAMP => ts1}  hbase> t.get 'r1', {COLUMN => 'c1', TIMERANGE => [ts1, ts2], VERSIONS => 4}  hbase> t.get 'r1', {COLUMN => 'c1', TIMESTAMP => ts1, VERSIONS => 4}  hbase> t.get 'r1', {FILTER => "ValueFilter(=, 'binary:abc')"}  hbase> t.get 'r1', 'c1'  hbase> t.get 'r1', 'c1', 'c2'  hbase> t.get 'r1', ['c1', 'c2']  hbase> t.get 'r1', {CONSISTENCY => 'TIMELINE'}  hbase> t.get 'r1', {CONSISTENCY => 'TIMELINE', REGION_REPLICA_ID => 1}HBase Shell, version 1.2.1, r8d8a7107dc4ccbf36a92f64675dc60392f85c015, Wed Mar 30 11:19:21 CDT 2016Type 'help "COMMAND"', (e.g. 'help "get"' -- the quotes are necessary) for help on a specific command.Commands are grouped. Type 'help "COMMAND_GROUP"', (e.g. 'help "general"') for help on a command group.COMMAND GROUPS:  Group name: general  Commands: status, table_help, version, whoami  Group name: ddl  Commands: alter, alter_async, alter_status, create, describe, disable, disable_all, drop, drop_all, enable, enable_all, exists, get_table, is_disabled, is_enabled, list, locate_region, show_filters  Group name: namespace  Commands: alter_namespace, create_namespace, describe_namespace, drop_namespace, list_namespace, list_namespace_tables  Group name: dml  Commands: append, count, delete, deleteall, get, get_counter, get_splits, incr, put, scan, truncate, truncate_preserve  Group name: tools  Commands: assign, balance_switch, balancer, balancer_enabled, catalogjanitor_enabled, catalogjanitor_run, catalogjanitor_switch, close_region, compact, compact_rs, flush, major_compact, merge_region, move, normalize, normalizer_enabled, normalizer_switch, split, trace, unassign, wal_roll, zk_dump  Group name: replication  Commands: add_peer, append_peer_tableCFs, disable_peer, disable_table_replication, enable_peer, enable_table_replication, list_peers, list_replicated_tables, remove_peer, remove_peer_tableCFs, set_peer_tableCFs, show_peer_tableCFs  Group name: snapshots  Commands: clone_snapshot, delete_all_snapshot, delete_snapshot, list_snapshots, restore_snapshot, snapshot  Group name: configuration  Commands: update_all_config, update_config  Group name: quotas  Commands: list_quotas, set_quota  Group name: security  Commands: grant, list_security_capabilities, revoke, user_permission  Group name: procedures  Commands: abort_procedure, list_procedures  Group name: visibility labels  Commands: add_labels, clear_auths, get_auths, list_labels, set_auths, set_visibilitySHELL USAGE:Quote all names in HBase Shell such as table and column names.  Commas delimitcommand parameters.  Type  after entering a command to run it.Dictionaries of configuration used in the creation and alteration of tables areRuby Hashes. They look like this:  {'key1' => 'value1', 'key2' => 'value2', ...}and are opened and closed with curley-braces.  Key/values are delimited by the'=>' character combination.  Usually keys are predefined constants such asNAME, VERSIONS, COMPRESSION, etc.  Constants do not need to be quoted.  Type'Object.constants' to see a (messy) list of all constants in the environment.If you are using binary keys or values and need to enter them in the shell, usedouble-quote'd hexadecimal representation. For example:  hbase> get 't1', "key\x03\x3f\xcd"  hbase> get 't1', "key\003\023\011"  hbase> put 't1', "test\xef\xff", 'f1:', "\x01\x33\x40"The HBase shell is the (J)Ruby IRB with the above HBase-specific commands added.For more on the HBase Shell, see http://hbase.apache.org/book.html

表的管理

创建表

hbase(main):004:0> create'scores','grade', 'course'0 row(s) in 2.8930 seconds=> Hbase::Table - scores#查看创建表hbase(main):006:0> listTABLE                                                                                                                                scores                                                                                                                               1 row(s) in 0.0270 seconds=> ["scores"]

查看表的构造

hbase(main):010:0> describe'scores'Table scores is ENABLED                                                                                                              scores                                                                                                                               COLUMN FAMILIES DESCRIPTION                                                                                                          {NAME => 'course', DATA_BLOCK_ENCODING => 'NONE', BLOOMFILTER => 'ROW', REPLICATION_SCOPE => '0', VERSIONS => '1', COMPRESSION => 'NONE', MIN_VERSIONS => '0', TTL => 'FOREVER', KEEP_DELETED_CELLS => 'FALSE', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE => 'true'}                                                                                                                              {NAME => 'grade', DATA_BLOCK_ENCODING => 'NONE', BLOOMFILTER => 'ROW', REPLICATION_SCOPE => '0', VERSIONS => '1', COMPRESSION => 'NONE', MIN_VERSIONS => '0', TTL => 'FOREVER', KEEP_DELETED_CELLS => 'FALSE', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE => 'true'}                                                                                                                               2 row(s) in 0.2090 secondshbase(main):011:0>

加入一行数据,行名称为zkb 列族grad的列名为"" 值位5

hbase(main):011:0> put'scores','zkb','grade:','5' 0 row(s) in 0.1240 secondshbase(main):012:0>

给zkb这一行的数据的列族course添加一列

hbase(main):012:0> put'scores','zkb','course:math','97'0 row(s) in 0.0120 secondshbase(main):013:0>

给zkb这一行的数据的列族course添加一列

hbase(main):013:0> put'scores','zkb','course:art','87'0 row(s) in 0.0140 secondshbase(main):014:0>

加入一行数据,行名称为baoniu 列族grad的列名为"" 值为4

hbase(main):014:0>  put'scores','baoniu','grade:','4'0 row(s) in 0.0170 seconds

给baoniu这一行的数据的列族course添加一列　　

hbase(main):015:0> put'scores','baoniu','course:math','89'0 row(s) in 0.0120 seconds

给Jerry这一行的数据的列族course添加一列

hbase(main):016:0> put'scores','baoniu','course:art','80'0 row(s) in 0.0150 secondshbase(main):017:0>

查看scores表中zkb的相关数据

hbase(main):017:0> get'scores','zkb'COLUMN                             CELL                                                                                               course:art                        timestamp=1474183749925, value=87                                                                  course:math                       timestamp=1474183718550, value=97                                                                  grade:                            timestamp=1474183615369, value=5                                                                  3 row(s) in 0.1280 secondshbase(main):018:0>

查看scores表中所有数据

hbase(main):018:0> scan'scores'ROW                                COLUMN+CELL                                                                                        baoniu                            column=course:art, timestamp=1474183803493, value=80                                               baoniu                            column=course:math, timestamp=1474183793034, value=89                                              baoniu                            column=grade:, timestamp=1474183782970, value=4                                                    zkb                               column=course:art, timestamp=1474183749925, value=87                                               zkb                               column=course:math, timestamp=1474183718550, value=97                                              zkb                               column=grade:, timestamp=1474183615369, value=5                                                   2 row(s) in 0.0590 secondshbase(main):019:0>

查看scores表中所有数据courses列族的所有数据

hbase(main):019:0> scan'scores',{COLUMNS => 'course'}ROW                                COLUMN+CELL                                                                                        baoniu                            column=course:art, timestamp=1474183803493, value=80                                               baoniu                            column=course:math, timestamp=1474183793034, value=89                                              zkb                               column=course:art, timestamp=1474183749925, value=87                                               zkb                               column=course:math, timestamp=1474183718550, value=97                                             2 row(s) in 0.0330 secondshbase(main):020:0>

参考文档

http://blog.csdn.net/lifuxiangcaohui/article/details/40042117

http://blog.csdn.net/smcwwh/article/details/7468672

http://www.cnblogs.com/nexiyi/p/hbase_shell.html