hbase shell operate
Posted Alamps 沁园春
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1, start hdfs [[email protected] sbin]$ ./start-all.sh This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh Starting namenodes on [alamps] alamps: starting namenode, logging to /home/hadoop/app/hadoop-2.4.1/logs/hadoop-hadoop-namenode-alamps.out alamps: starting datanode, logging to /home/hadoop/app/hadoop-2.4.1/logs/hadoop-hadoop-datanode-alamps.out Starting secondary namenodes [0.0.0.0] 0.0.0.0: starting secondarynamenode, logging to /home/hadoop/app/hadoop-2.4.1/logs/hadoop-hadoop-secondarynamenode-alamps.out starting yarn daemons starting resourcemanager, logging to /home/hadoop/app/hadoop-2.4.1/logs/yarn-hadoop-resourcemanager-alamps.out alamps: starting nodemanager, logging to /home/hadoop/app/hadoop-2.4.1/logs/yarn-hadoop-nodemanager-alamps.out [[email protected] sbin]$ jps 6976 Jps 6352 DataNode 6775 NodeManager 6233 NameNode 6508 SecondaryNameNode 6654 ResourceManager 2, start hbase [[email protected] bin]$ ./start-hbase.sh alamps: starting zookeeper, logging to /home/hadoop/hbase-0.96.2/bin/../logs/hbase-hadoop-zookeeper-alamps.out starting master, logging to /home/hadoop/hbase-0.96.2/bin/../logs/hbase-hadoop-master-alamps.out localhost: starting regionserver, logging to /home/hadoop/hbase-0.96.2/bin/../logs/hbase-hadoop-regionserver-alamps.out [[email protected] bin]$ jps 6352 DataNode 7283 HQuorumPeer 6775 NodeManager 6233 NameNode 7529 Jps 7338 HMaster 6508 SecondaryNameNode 6654 ResourceManager 7455 HRegionServer [[email protected] bin]$ 3, hbase shell ========================= 进入hbase命令行 ./hbase shell 显示hbase中的表 list hbase(main):001:0> list TABLE SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/home/hadoop/hbase-0.96.2/lib/slf4j-log4j12-1.6.4.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/home/hadoop/app/hadoop-2.4.1/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. 0 row(s) in 1.8360 seconds => [] hbase(main):002:0> create ‘user‘, ‘info1‘, ‘data1‘ 0 row(s) in 0.6790 seconds => Hbase::Table - user hbase(main):003:0> list TABLE user 1 row(s) in 0.0670 seconds => ["user"] hbase(main):004:0> create ‘user‘, {NAME => ‘info‘, VERSIONS => ‘3‘} ERROR: Table already exists: user! Here is some help for this command: Creates a table. Pass a table name, and a set of column family specifications (at least one), and, optionally, table configuration. Column specification can be a simple string (name), or a dictionary (dictionaries are described below in main help output), necessarily including NAME attribute. Examples: Create a table with namespace=ns1 and table qualifier=t1 hbase> create ‘ns1:t1‘, {NAME => ‘f1‘, VERSIONS => 5} Create a table with namespace=default and table qualifier=t1 hbase> create ‘t1‘, {NAME => ‘f1‘}, {NAME => ‘f2‘}, {NAME => ‘f3‘} hbase> # The above in shorthand would be the following: hbase> create ‘t1‘, ‘f1‘, ‘f2‘, ‘f3‘ hbase> create ‘t1‘, {NAME => ‘f1‘, VERSIONS => 1, TTL => 2592000, BLOCKCACHE => true} hbase> create ‘t1‘, {NAME => ‘f1‘, CONFIGURATION => {‘hbase.hstore.blockingStoreFiles‘ => ‘10‘}} Table configuration options can be put at the end. Examples: hbase> create ‘ns1:t1‘, ‘f1‘, SPLITS => [‘10‘, ‘20‘, ‘30‘, ‘40‘] hbase> create ‘t1‘, ‘f1‘, SPLITS => [‘10‘, ‘20‘, ‘30‘, ‘40‘] hbase> create ‘t1‘, ‘f1‘, SPLITS_FILE => ‘splits.txt‘, OWNER => ‘johndoe‘ hbase> create ‘t1‘, {NAME => ‘f1‘, VERSIONS => 5}, METADATA => { ‘mykey‘ => ‘myvalue‘ } hbase> # Optionally pre-split the table into NUMREGIONS, using hbase> # SPLITALGO ("HexStringSplit", "UniformSplit" or classname) hbase> create ‘t1‘, ‘f1‘, {NUMREGIONS => 15, SPLITALGO => ‘HexStringSplit‘} hbase> create ‘t1‘, ‘f1‘, {NUMREGIONS => 15, SPLITALGO => ‘HexStringSplit‘, CONFIGURATION => {‘hbase.hregion.scan.loadColumnFamiliesOnDemand‘ => ‘true‘}} You can also keep around a reference to the created table: hbase> t1 = create ‘t1‘, ‘f1‘ Which gives you a reference to the table named ‘t1‘, on which you can then call methods. hbase(main):005:0> create ‘user‘, {NAME => ‘info1‘, VERSIONS => ‘3‘} ERROR: Table already exists: user! Here is some help for this command: Creates a table. Pass a table name, and a set of column family specifications (at least one), and, optionally, table configuration. Column specification can be a simple string (name), or a dictionary (dictionaries are described below in main help output), necessarily including NAME attribute. Examples: Create a table with namespace=ns1 and table qualifier=t1 hbase> create ‘ns1:t1‘, {NAME => ‘f1‘, VERSIONS => 5} Create a table with namespace=default and table qualifier=t1 hbase> create ‘t1‘, {NAME => ‘f1‘}, {NAME => ‘f2‘}, {NAME => ‘f3‘} hbase> # The above in shorthand would be the following: hbase> create ‘t1‘, ‘f1‘, ‘f2‘, ‘f3‘ hbase> create ‘t1‘, {NAME => ‘f1‘, VERSIONS => 1, TTL => 2592000, BLOCKCACHE => true} hbase> create ‘t1‘, {NAME => ‘f1‘, CONFIGURATION => {‘hbase.hstore.blockingStoreFiles‘ => ‘10‘}} Table configuration options can be put at the end. Examples: hbase> create ‘ns1:t1‘, ‘f1‘, SPLITS => [‘10‘, ‘20‘, ‘30‘, ‘40‘] hbase> create ‘t1‘, ‘f1‘, SPLITS => [‘10‘, ‘20‘, ‘30‘, ‘40‘] hbase> create ‘t1‘, ‘f1‘, SPLITS_FILE => ‘splits.txt‘, OWNER => ‘johndoe‘ hbase> create ‘t1‘, {NAME => ‘f1‘, VERSIONS => 5}, METADATA => { ‘mykey‘ => ‘myvalue‘ } hbase> # Optionally pre-split the table into NUMREGIONS, using hbase> # SPLITALGO ("HexStringSplit", "UniformSplit" or classname) hbase> create ‘t1‘, ‘f1‘, {NUMREGIONS => 15, SPLITALGO => ‘HexStringSplit‘} hbase> create ‘t1‘, ‘f1‘, {NUMREGIONS => 15, SPLITALGO => ‘HexStringSplit‘, CONFIGURATION => {‘hbase.hregion.scan.loadColumnFamiliesOnDemand‘ => ‘true‘}} You can also keep around a reference to the created table: hbase> t1 = create ‘t1‘, ‘f1‘ Which gives you a reference to the table named ‘t1‘, on which you can then call methods. hbase(main):006:0> san ‘user‘ NoMethodError: undefined method `san‘ for #<Object:0x689973> hbase(main):007:0> scan ‘user‘ ROW COLUMN+CELL 0 row(s) in 0.0330 seconds hbase(main):008:0> create ‘user‘, {NAME => ‘info1‘, VERSIONS => ‘3‘} ERROR: Table already exists: user! Here is some help for this command: Creates a table. Pass a table name, and a set of column family specifications (at least one), and, optionally, table configuration. Column specification can be a simple string (name), or a dictionary (dictionaries are described below in main help output), necessarily including NAME attribute. Examples: Create a table with namespace=ns1 and table qualifier=t1 hbase> create ‘ns1:t1‘, {NAME => ‘f1‘, VERSIONS => 5} Create a table with namespace=default and table qualifier=t1 hbase> create ‘t1‘, {NAME => ‘f1‘}, {NAME => ‘f2‘}, {NAME => ‘f3‘} hbase> # The above in shorthand would be the following: hbase> create ‘t1‘, ‘f1‘, ‘f2‘, ‘f3‘ hbase> create ‘t1‘, {NAME => ‘f1‘, VERSIONS => 1, TTL => 2592000, BLOCKCACHE => true} hbase> create ‘t1‘, {NAME => ‘f1‘, CONFIGURATION => {‘hbase.hstore.blockingStoreFiles‘ => ‘10‘}} Table configuration options can be put at the end. Examples: hbase> create ‘ns1:t1‘, ‘f1‘, SPLITS => [‘10‘, ‘20‘, ‘30‘, ‘40‘] hbase> create ‘t1‘, ‘f1‘, SPLITS => [‘10‘, ‘20‘, ‘30‘, ‘40‘] hbase> create ‘t1‘, ‘f1‘, SPLITS_FILE => ‘splits.txt‘, OWNER => ‘johndoe‘ hbase> create ‘t1‘, {NAME => ‘f1‘, VERSIONS => 5}, METADATA => { ‘mykey‘ => ‘myvalue‘ } hbase> # Optionally pre-split the table into NUMREGIONS, using hbase> # SPLITALGO ("HexStringSplit", "UniformSplit" or classname) hbase> create ‘t1‘, ‘f1‘, {NUMREGIONS => 15, SPLITALGO => ‘HexStringSplit‘} hbase> create ‘t1‘, ‘f1‘, {NUMREGIONS => 15, SPLITALGO => ‘HexStringSplit‘, CONFIGURATION => {‘hbase.hregion.scan.loadColumnFamiliesOnDemand‘ => ‘true‘}} You can also keep around a reference to the created table: hbase> t1 = create ‘t1‘, ‘f1‘ Which gives you a reference to the table named ‘t1‘, on which you can then call methods. hbase(main):009:0> put ‘user‘, ‘rk0001‘, ‘info:name‘, ‘zhangsan‘ ERROR: Failed 1 action: org.apache.hadoop.hbase.regionserver.NoSuchColumnFamilyException: Column family info does not exist in region user,,1511513666149.7dafe6d1353a5be73a69aa03ffdbe8d3. in table ‘user‘, {NAME => ‘data1‘, BLOOMFILTER => ‘ROW‘, VERSIONS => ‘1‘, IN_MEMORY => ‘false‘, KEEP_DELETED_CELLS => ‘false‘, DATA_BLOCK_ENCODING => ‘NONE‘, TTL => ‘2147483647‘, COMPRESSION => ‘NONE‘, MIN_VERSIONS => ‘0‘, BLOCKCACHE => ‘true‘, BLOCKSIZE => ‘65536‘, REPLICATION_SCOPE => ‘0‘}, {NAME => ‘info1‘, BLOOMFILTER => ‘ROW‘, VERSIONS => ‘1‘, IN_MEMORY => ‘false‘, KEEP_DELETED_CELLS => ‘false‘, DATA_BLOCK_ENCODING => ‘NONE‘, TTL => ‘2147483647‘, COMPRESSION => ‘NONE‘, MIN_VERSIONS => ‘0‘, BLOCKCACHE => ‘true‘, BLOCKSIZE => ‘65536‘, REPLICATION_SCOPE => ‘0‘} at org.apache.hadoop.hbase.regionserver.HRegionServer.doBatchOp(HRegionServer.java:4100) at org.apache.hadoop.hbase.regionserver.HRegionServer.doNonAtomicRegionMutation(HRegionServer.java:3380) at org.apache.hadoop.hbase.regionserver.HRegionServer.multi(HRegionServer.java:3284) at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:26935) at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2185) at org.apache.hadoop.hbase.ipc.RpcServer$Handler.run(RpcServer.java:1889) : 1 time, Here is some help for this command: Put a cell ‘value‘ at specified table/row/column and optionally timestamp coordinates. To put a cell value into table ‘ns1:t1‘ or ‘t1‘ at row ‘r1‘ under column ‘c1‘ marked with the time ‘ts1‘, do: hbase> put ‘ns1:t1‘, ‘r1‘, ‘c1‘, ‘value‘, ts1 The same commands also can be run on a table reference. Suppose you had a reference t to table ‘t1‘, the corresponding command would be: hbase> t.put ‘r1‘, ‘c1‘, ‘value‘, ts1 hbase(main):010:0> put ‘user‘, ‘rk0001‘, ‘info1:name‘, ‘zhangsan‘ 0 row(s) in 0.0050 seconds hbase(main):011:0> scan ‘user‘ ROW COLUMN+CELL rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan 1 row(s) in 0.0330 seconds hbase(main):012:0> delete ‘user‘ ERROR: wrong number of arguments (1 for 3) Here is some help for this command: Put a delete cell value at specified table/row/column and optionally timestamp coordinates. Deletes must match the deleted cell‘s coordinates exactly. When scanning, a delete cell suppresses older versions. To delete a cell from ‘t1‘ at row ‘r1‘ under column ‘c1‘ marked with the time ‘ts1‘, do: hbase> delete ‘ns1:t1‘, ‘r1‘, ‘c1‘, ts1 hbase> delete ‘t1‘, ‘r1‘, ‘c1‘, ts1 The same command can also be run on a table reference. Suppose you had a reference t to table ‘t1‘, the corresponding command would be: hbase> t.delete ‘r1‘, ‘c1‘, ts1 hbase(main):013:0> list TABLE user 1 row(s) in 0.0580 seconds => ["user"] hbase(main):014:0> delete ‘user‘ ERROR: wrong number of arguments (1 for 3) Here is some help for this command: Put a delete cell value at specified table/row/column and optionally timestamp coordinates. Deletes must match the deleted cell‘s coordinates exactly. When scanning, a delete cell suppresses older versions. To delete a cell from ‘t1‘ at row ‘r1‘ under column ‘c1‘ marked with the time ‘ts1‘, do: hbase> delete ‘ns1:t1‘, ‘r1‘, ‘c1‘, ts1 hbase> delete ‘t1‘, ‘r1‘, ‘c1‘, ts1 The same command can also be run on a table reference. Suppose you had a reference t to table ‘t1‘, the corresponding command would be: hbase> t.delete ‘r1‘, ‘c1‘, ts1 hbase(main):015:0> delete user NameError: undefined local variable or method `user‘ for #<Object:0x689973> hbase(main):016:0> disable ‘user‘ 0 row(s) in 2.7590 seconds hbase(main):017:0> delete ‘user‘ ERROR: wrong number of arguments (1 for 3) Here is some help for this command: Put a delete cell value at specified table/row/column and optionally timestamp coordinates. Deletes must match the deleted cell‘s coordinates exactly. When scanning, a delete cell suppresses older versions. To delete a cell from ‘t1‘ at row ‘r1‘ under column ‘c1‘ marked with the time ‘ts1‘, do: hbase> delete ‘ns1:t1‘, ‘r1‘, ‘c1‘, ts1 hbase> delete ‘t1‘, ‘r1‘, ‘c1‘, ts1 The same command can also be run on a table reference. Suppose you had a reference t to table ‘t1‘, the corresponding command would be: hbase> t.delete ‘r1‘, ‘c1‘, ts1 hbase(main):018:0> scan ‘user‘ ROW COLUMN+CELL ERROR: user is disabled. Here is some help for this command: Scan a table; pass table name and optionally a dictionary of scanner specifications. Scanner specifications may include one or more of: TIMERANGE, FILTER, LIMIT, STARTROW, STOPROW, TIMESTAMP, MAXLENGTH, or COLUMNS, CACHE If no columns are specified, all columns will be scanned. To scan all members of a column family, leave the qualifier empty as in ‘col_family:‘. The filter can be specified in two ways: 1. Using a filterString - more information on this is available in the Filter Language document attached to the HBASE-4176 JIRA 2. Using the entire package name of the filter. Some examples: hbase> scan ‘hbase:meta‘ hbase> scan ‘hbase:meta‘, {COLUMNS => ‘info:regioninfo‘} hbase> scan ‘ns1:t1‘, {COLUMNS => [‘c1‘, ‘c2‘], LIMIT => 10, STARTROW => ‘xyz‘} hbase> scan ‘t1‘, {COLUMNS => [‘c1‘, ‘c2‘], LIMIT => 10, STARTROW => ‘xyz‘} hbase> scan ‘t1‘, {COLUMNS => ‘c1‘, TIMERANGE => [1303668804, 1303668904]} hbase> scan ‘t1‘, {FILTER => "(PrefixFilter (‘row2‘) AND (QualifierFilter (>=, ‘binary:xyz‘))) AND (TimestampsFilter ( 123, 456))"} hbase> scan ‘t1‘, {FILTER => org.apache.hadoop.hbase.filter.ColumnPaginationFilter.new(1, 0)} For experts, there is an additional option -- CACHE_BLOCKS -- which switches block caching for the scanner on (true) or off (false). By default it is enabled. Examples: hbase> scan ‘t1‘, {COLUMNS => [‘c1‘, ‘c2‘], CACHE_BLOCKS => false} Also for experts, there is an advanced option -- RAW -- which instructs the scanner to return all cells (including delete markers and uncollected deleted cells). This option cannot be combined with requesting specific COLUMNS. Disabled by default. Example: hbase> scan ‘t1‘, {RAW => true, VERSIONS => 10} Besides the default ‘toStringBinary‘ format, ‘scan‘ supports custom formatting by column. A user can define a FORMATTER by adding it to the column name in the scan specification. 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> scan ‘t1‘, {COLUMNS => [‘cf:qualifier1:toInt‘, ‘cf:qualifier2:c(org.apache.hadoop.hbase.util.Bytes).toInt‘] } Note that you can specify a FORMATTER by column only (cf:qualifer). You cannot specify a FORMATTER for all columns of a column family. Scan can also be used directly from a table, by first getting a reference to a table, like such: hbase> t = get_table ‘t‘ hbase> t.scan Note in the above situation, you can still provide all the filtering, columns, options, etc as described above. hbase(main):019:0> scan ‘user‘ ROW COLUMN+CELL ERROR: user is disabled. Here is some help for this command: Scan a table; pass table name and optionally a dictionary of scanner specifications. Scanner specifications may include one or more of: TIMERANGE, FILTER, LIMIT, STARTROW, STOPROW, TIMESTAMP, MAXLENGTH, or COLUMNS, CACHE If no columns are specified, all columns will be scanned. To scan all members of a column family, leave the qualifier empty as in ‘col_family:‘. The filter can be specified in two ways: 1. Using a filterString - more information on this is available in the Filter Language document attached to the HBASE-4176 JIRA 2. Using the entire package name of the filter. Some examples: hbase> scan ‘hbase:meta‘ hbase> scan ‘hbase:meta‘, {COLUMNS => ‘info:regioninfo‘} hbase> scan ‘ns1:t1‘, {COLUMNS => [‘c1‘, ‘c2‘], LIMIT => 10, STARTROW => ‘xyz‘} hbase> scan ‘t1‘, {COLUMNS => [‘c1‘, ‘c2‘], LIMIT => 10, STARTROW => ‘xyz‘} hbase> scan ‘t1‘, {COLUMNS => ‘c1‘, TIMERANGE => [1303668804, 1303668904]} hbase> scan ‘t1‘, {FILTER => "(PrefixFilter (‘row2‘) AND (QualifierFilter (>=, ‘binary:xyz‘))) AND (TimestampsFilter ( 123, 456))"} hbase> scan ‘t1‘, {FILTER => org.apache.hadoop.hbase.filter.ColumnPaginationFilter.new(1, 0)} For experts, there is an additional option -- CACHE_BLOCKS -- which switches block caching for the scanner on (true) or off (false). By default it is enabled. Examples: hbase> scan ‘t1‘, {COLUMNS => [‘c1‘, ‘c2‘], CACHE_BLOCKS => false} Also for experts, there is an advanced option -- RAW -- which instructs the scanner to return all cells (including delete markers and uncollected deleted cells). This option cannot be combined with requesting specific COLUMNS. Disabled by default. Example: hbase> scan ‘t1‘, {RAW => true, VERSIONS => 10} Besides the default ‘toStringBinary‘ format, ‘scan‘ supports custom formatting by column. A user can define a FORMATTER by adding it to the column name in the scan specification. 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> scan ‘t1‘, {COLUMNS => [‘cf:qualifier1:toInt‘, ‘cf:qualifier2:c(org.apache.hadoop.hbase.util.Bytes).toInt‘] } Note that you can specify a FORMATTER by column only (cf:qualifer). You cannot specify a FORMATTER for all columns of a column family. Scan can also be used directly from a table, by first getting a reference to a table, like such: hbase> t = get_table ‘t‘ hbase> t.scan Note in the above situation, you can still provide all the filtering, columns, options, etc as described above. hbase(main):020:0> enable ‘user‘ 0 row(s) in 0.6160 seconds hbase(main):021:0> scan ‘user‘ ROW COLUMN+CELL rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan 1 row(s) in 0.0670 seconds hbase(main):022:0> put ‘user‘, ‘rk0001‘, ‘info1:gender‘, ‘female‘ 0 row(s) in 0.0130 seconds hbase(main):023:0> scan ‘user‘ ROW COLUMN+CELL rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan 1 row(s) in 0.0360 seconds hbase(main):025:0> put ‘user‘, ‘rk0001‘, ‘info1:age‘, 20 0 row(s) in 0.0250 seconds hbase(main):026:0> scan ‘user‘ ROW COLUMN+CELL rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan 1 row(s) in 0.0290 seconds Here is some help for this command: Put a cell ‘value‘ at specified table/row/column and optionally timestamp coordinates. To put a cell value into table ‘ns1:t1‘ or ‘t1‘ at row ‘r1‘ under column ‘c1‘ marked with the time ‘ts1‘, do: hbase> put ‘ns1:t1‘, ‘r1‘, ‘c1‘, ‘value‘, ts1 The same commands also can be run on a table reference. Suppose you had a reference t to table ‘t1‘, the corresponding command would be: hbase> t.put ‘r1‘, ‘c1‘, ‘value‘, ts1 hbase(main):028:0> put ‘user‘, ‘rk0001‘, ‘data1:pic‘, ‘picture‘ 0 row(s) in 0.0080 seconds hbase(main):029:0> scan ‘user‘ ROW COLUMN+CELL rk0001 column=data1:pic, timestamp=1511514630008, value=picture rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan 1 row(s) in 0.0270 seconds hbase(main):030:0> get ‘user‘ rk001 SyntaxError: (hbase):30: syntax error, unexpected tIDENTIFIER get ‘user‘ rk001 ^ hbase(main):031:0> get ‘user‘, ‘rk0001‘ COLUMN CELL data1:pic timestamp=1511514630008, value=picture info1:age timestamp=1511514577793, value=20 info1:gender timestamp=1511514513331, value=female info1:name timestamp=1511514175935, value=zhangsan 4 row(s) in 0.0650 seconds hbase(main):032:0> get ‘user‘, ‘rk0001‘, ‘info1‘ COLUMN CELL info1:age timestamp=1511514577793, value=20 info1:gender timestamp=1511514513331, value=female info1:name timestamp=1511514175935, value=zhangsan 3 row(s) in 0.0390 seconds hbase(main):034:0> get ‘user‘, ‘rk0001‘, ‘info1:name‘, ‘info1:age‘ COLUMN CELL info1:age timestamp=1511514577793, value=20 info1:name timestamp=1511514175935, value=zhangsan 2 row(s) in 0.0260 seconds hbase(main):035:0> get ‘user‘, ‘rk0001‘, ‘info1‘, ‘data1‘ COLUMN CELL data1:pic timestamp=1511514630008, value=picture info1:age timestamp=1511514577793, value=20 info1:gender timestamp=1511514513331, value=female info1:name timestamp=1511514175935, value=zhangsan 4 row(s) in 0.0220 seconds hbase(main):036:0> get ‘user‘, ‘rk0001‘, {COLUMN => [‘info1‘, ‘data1‘]} COLUMN CELL data1:pic timestamp=1511514630008, value=picture info1:age timestamp=1511514577793, value=20 info1:gender timestamp=1511514513331, value=female info1:name timestamp=1511514175935, value=zhangsan 4 row(s) in 0.0200 seconds hbase(main):037:0> get ‘user‘, ‘rk0001‘, {COLUMN => [‘info1:name‘, ‘data1:pic‘]} COLUMN CELL data1:pic timestamp=1511514630008, value=picture info1:name timestamp=1511514175935, value=zhangsan 2 row(s) in 0.0400 seconds hbase(main):038:0> get ‘user‘, ‘rk0001‘, {COLUMN => ‘info1:name‘, VERSIONS => 5} COLUMN CELL info1:name timestamp=1511514175935, value=zhangsan 1 row(s) in 0.0130 seconds hbase(main):039:0> get ‘user‘, ‘rk0001‘, {FILTER => "ValueFilter(=, ‘binary:图片‘)"} COLUMN CELL 0 row(s) in 0.0750 seconds hbase(main):040:0> get ‘user‘, ‘rk0001‘, {FILTER => "(QualifierFilter(=,‘substring:a‘))"} COLUMN CELL info1:age timestamp=1511514577793, value=20 info1:name timestamp=1511514175935, value=zhangsan 2 row(s) in 0.0290 seconds hbase(main):041:0> put ‘user‘, ‘rk0002‘, ‘info1:name‘, ‘fanbingbing‘ 0 row(s) in 0.0110 seconds hbase(main):042:0> put ‘user‘, ‘rk0002‘, ‘info1:gender‘, ‘female‘ 0 row(s) in 0.0040 seconds hbase(main):043:0> put ‘user‘, ‘rk0002‘, ‘info1:nationality‘, ‘中国‘ 0 row(s) in 0.0130 seconds hbase(main):044:0> get surscan ‘user‘ NoMethodError: undefined method `surscan‘ for #<Object:0x689973> hbase(main):045:0> scan ‘user‘ ROW COLUMN+CELL rk0001 column=data1:pic, timestamp=1511514630008, value=picture rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:gender, timestamp=1511515593309, value=female rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing rk0002 column=info1:nationality, timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 2 row(s) in 0.0280 seconds hbase(main):046:0> scan ‘user‘ ROW COLUMN+CELL rk0001 column=data1:pic, timestamp=1511514630008, value=picture rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:gender, timestamp=1511515593309, value=female rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing rk0002 column=info1:nationality, timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 2 row(s) in 0.0330 seconds hbase(main):047:0> get ‘user‘, ‘rk0002‘, {FILTER => "ValueFilter(=, ‘binary:中国‘)"} COLUMN CELL info1:nationality timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 1 row(s) in 0.0130 seconds hbase(main):048:0> scan ‘user‘, {COLUMNS => ‘info‘} ROW COLUMN+CELL ERROR: Unknown column family! Valid column names: data1:*, info1:* Here is some help for this command: Scan a table; pass table name and optionally a dictionary of scanner specifications. Scanner specifications may include one or more of: TIMERANGE, FILTER, LIMIT, STARTROW, STOPROW, TIMESTAMP, MAXLENGTH, or COLUMNS, CACHE If no columns are specified, all columns will be scanned. To scan all members of a column family, leave the qualifier empty as in ‘col_family:‘. The filter can be specified in two ways: 1. Using a filterString - more information on this is available in the Filter Language document attached to the HBASE-4176 JIRA 2. Using the entire package name of the filter. Some examples: hbase> scan ‘hbase:meta‘ hbase> scan ‘hbase:meta‘, {COLUMNS => ‘info:regioninfo‘} hbase> scan ‘ns1:t1‘, {COLUMNS => [‘c1‘, ‘c2‘], LIMIT => 10, STARTROW => ‘xyz‘} hbase> scan ‘t1‘, {COLUMNS => [‘c1‘, ‘c2‘], LIMIT => 10, STARTROW => ‘xyz‘} hbase> scan ‘t1‘, {COLUMNS => ‘c1‘, TIMERANGE => [1303668804, 1303668904]} hbase> scan ‘t1‘, {FILTER => "(PrefixFilter (‘row2‘) AND (QualifierFilter (>=, ‘binary:xyz‘))) AND (TimestampsFilter ( 123, 456))"} hbase> scan ‘t1‘, {FILTER => org.apache.hadoop.hbase.filter.ColumnPaginationFilter.new(1, 0)} hbase(main):049:0> scan ‘user‘, {COLUMNS => ‘info1‘} ROW COLUMN+CELL rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:gender, timestamp=1511515593309, value=female rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing rk0002 column=info1:nationality, timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 2 row(s) in 0.0570 seconds hbase(main):050:0> scan ‘user‘, {COLUMNS => ‘info1‘, RAW => true, VERSIONS => 5} ROW COLUMN+CELL rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:gender, timestamp=1511515593309, value=female rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing rk0002 column=info1:nationality, timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 2 row(s) in 0.0280 seconds hbase(main):051:0> scan ‘user‘, {COLUMNS => ‘info1‘, RAW => true, VERSIONS => 3} ROW COLUMN+CELL rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:gender, timestamp=1511515593309, value=female rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing rk0002 column=info1:nationality, timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 2 row(s) in 0.0360 seconds hbase(main):052:0> scan ‘user‘, {COLUMNS => [‘info1‘, ‘data1‘]} ROW COLUMN+CELL rk0001 column=data1:pic, timestamp=1511514630008, value=picture rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:gender, timestamp=1511515593309, value=female rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing rk0002 column=info1:nationality, timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 2 row(s) in 0.0270 seconds hbase(main):053:0> scan ‘user‘, {COLUMNS => [‘info1:name‘, ‘data1:pic‘]} ROW COLUMN+CELL rk0001 column=data1:pic, timestamp=1511514630008, value=picture rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing 2 row(s) in 0.0380 seconds hbase(main):054:0> scan ‘user‘, {COLUMNS => ‘info1:name‘} ROW COLUMN+CELL rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing 2 row(s) in 0.0200 seconds hbase(main):055:0> scan ‘user‘, {COLUMNS => ‘info1:name‘, VERSIONS => 5} ROW COLUMN+CELL rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing 2 row(s) in 0.0250 seconds hbase(main):056:0> scan ‘user‘, {COLUMNS => ‘info1:name‘, VERSIONS => 1} ROW COLUMN+CELL rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing 2 row(s) in 0.0230 seconds hbase(main):057:0> scan ‘user‘, {COLUMNS => ‘info1:name‘, VERSIONS => 1} ROW COLUMN+CELL rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing 2 row(s) in 0.0230 seconds hbase(main):058:0> scan ‘people‘, {COLUMNS => [‘info1‘, ‘data1‘], FILTER => "(QualifierFilter(=,‘substring:a‘))"} ERROR: Unknown table people! Here is some help for this command: Scan a table; pass table name and optionally a dictionary of scanner specifications. Scanner specifications may include one or more of: TIMERANGE, FILTER, LIMIT, STARTROW, STOPROW, TIMESTAMP, MAXLENGTH, or COLUMNS, CACHE If no columns are specified, all columns will be scanned. To scan all members of a column family, leave the qualifier empty as in ‘col_family:‘. The filter can be specified in two ways: 1. Using a filterString - more information on this is available in the Filter Language document attached to the HBASE-4176 JIRA 2. Using the entire package name of the filter. Some examples: hbase> scan ‘hbase:meta‘ hbase> scan ‘hbase:meta‘, {COLUMNS => ‘info:regioninfo‘} hbase> scan ‘ns1:t1‘, {COLUMNS => [‘c1‘, ‘c2‘], LIMIT => 10, STARTROW => ‘xyz‘} hbase> scan ‘t1‘, {COLUMNS => [‘c1‘, ‘c2‘], LIMIT => 10, STARTROW => ‘xyz‘} hbase> scan ‘t1‘, {COLUMNS => ‘c1‘, TIMERANGE => [1303668804, 1303668904]} hbase> scan ‘t1‘, {FILTER => "(PrefixFilter (‘row2‘) AND (QualifierFilter (>=, ‘binary:xyz‘))) AND (TimestampsFilter ( 123, 456))"} hbase> scan ‘t1‘, {FILTER => org.apache.hadoop.hbase.filter.ColumnPaginationFilter.new(1, 0)} For experts, there is an additional option -- CACHE_BLOCKS -- which switches block caching for the scanner on (true) or off (false). By default it is enabled. Examples: hbase> scan ‘t1‘, {COLUMNS => [‘c1‘, ‘c2‘], CACHE_BLOCKS => false} Also for experts, there is an advanced option -- RAW -- which instructs the scanner to return all cells (including delete markers and uncollected deleted cells). This option cannot be combined with requesting specific COLUMNS. Disabled by default. Example: hbase> scan ‘t1‘, {RAW => true, VERSIONS => 10} Besides the default ‘toStringBinary‘ format, ‘scan‘ supports custom formatting by column. A user can define a FORMATTER by adding it to the column name in the scan specification. 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> scan ‘t1‘, {COLUMNS => [‘cf:qualifier1:toInt‘, ‘cf:qualifier2:c(org.apache.hadoop.hbase.util.Bytes).toInt‘] } Note that you can specify a FORMATTER by column only (cf:qualifer). You cannot specify a FORMATTER for all columns of a column family. Scan can also be used directly from a table, by first getting a reference to a table, like such: hbase> t = get_table ‘t‘ hbase> t.scan Note in the above situation, you can still provide all the filtering, columns, options, etc as described above. hbase(main):059:0> scan ‘user‘, {COLUMNS => [‘info1‘, ‘data1‘], FILTER => "(QualifierFilter(=,‘substring:a‘))"} ROW COLUMN+CELL rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing rk0002 column=info1:nationality, timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 2 row(s) in 0.0220 seconds hbase(main):060:0> scan ‘user‘, {COLUMNS => ‘info1‘, STARTROW => ‘rk0001‘, ENDROW => ‘rk0003‘} ROW COLUMN+CELL rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:gender, timestamp=1511515593309, value=female rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing rk0002 column=info1:nationality, timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 2 row(s) in 0.0250 seconds hbase(main):061:0> scan ‘user‘,{FILTER=>"PrefixFilter(‘rk‘)"} ROW COLUMN+CELL rk0001 column=data1:pic, timestamp=1511514630008, value=picture rk0001 column=info1:age, timestamp=1511514577793, value=20 rk0001 column=info1:gender, timestamp=1511514513331, value=female rk0001 column=info1:name, timestamp=1511514175935, value=zhangsan rk0002 column=info1:gender, timestamp=1511515593309, value=female rk0002 column=info1:name, timestamp=1511515593274, value=fanbingbing rk0002 column=info1:nationality, timestamp=1511515595502, value=\xE4\xB8\xAD\xE5\x9B\xBD 2 row(s) in 0.0430 seconds hbase(main):062:0> [[email protected] sbin]$ scan ‘user‘, {TIMERANGE => [1511514175935, 1511514630008]} -bash: scan: command not found [[email protected] sbin]$ scan ‘user‘, {TIMERANGE => [1511514175935]} -bash: scan: command not found [[email protected] sbin]$ delete ‘user‘, ‘rk0001‘, ‘info:name‘ -bash: delete: command not found [[email protected] sbin]$ delete ‘user‘, ‘rk0001‘, ‘info1:name‘ -bash: delete: command not found [[email protected] sbin]$ delete ‘user‘, ‘rk0001‘, ‘info1:name‘ -bash: delete: command not found [[email protected] sbin]$ truncate ‘user‘ truncate: you must specify one of `--size‘ or `--reference‘ Try `truncate --help‘ for more information. [[email protected] sbin]$ truncate ‘user‘ truncate: you must specify one of `--size‘ or `--reference‘ Try `truncate --help‘ for more information. [[email protected] sbin]$ alter ‘user‘, NAME => ‘f2‘ -bash: alter: command not found [[email protected] sbin]$ alter ‘user‘, NAME => ‘f1‘, METHOD => ‘delete‘ -bash: alter: command not found [[email protected] sbin]$ drop ‘user‘ -bash: drop: command not found [[email protected] sbin]$ get ‘user‘, ‘rk0002‘, {COLUMN => [‘info1:name‘, ‘data1:pic‘]} -bash: get: command not found [[email protected] sbin]$ get ‘user‘, ‘rk0001‘, {COLUMN => [‘info1:name‘, ‘data1:pic‘]} -bash: get: command not found [[email protected] sbin]$ get ‘user‘ -bash: get: command not found [[email protected] sbin]$ hbase shell 2017-11-24 01:48:53,388 INFO [main] Configuration.deprecation: hadoop.native.lib is deprecated. Instead, use io.native.lib.available HBase Shell; enter ‘help<RETURN>‘ for list of supported commands. Type "exit<RETURN>" to leave the HBase Shell Version 0.96.2-hadoop2, r1581096, Mon Mar 24 16:03:18 PDT 2014 hbase(main):001:0> get ‘user‘, ‘rk0002‘, {COLUMN => [‘info1:name‘, ‘data1:pic‘]} SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/home/hadoop/hbase-0.96.2/lib/slf4j-log4j12-1.6.4.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/home/hadoop/app/hadoop-2.4.1/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. COLUMN CELL info1:name timestamp=1511515593274, value=fanbingbing 1 row(s) in 0.0750 seconds hbase(main):002:0> list TABLE user 1 row(s) in 0.1340 seconds => ["user"] hbase(main):003:0> get ‘user‘
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