周海汉 http://abloz.com 2012.12.27 [zhouhh@Hadoop48 ~]$ hbase org.apache.hadoop.hbase.io.hfile.HFile usage: HFile [-a] [-b] [-e] [-f ] [-k] [-m] [-p] [-r ] [-s] [-v] -a,–checkfamily Enable family check -b,–printblocks Print block index meta data -e,–printkey Print keys -f,–file File to scan. Pass full-path; e.g. hdfs://a:9000/hbase/.META./12/34 -k,–checkrow Enable row order check; looks for out-of-order keys -m,–printmeta Print meta data of file -p,–printkv Print key/value pairs -r,–region Region to scan. Pass region name; e.g. ‘.META.,,1’ -s,–stats Print statistics -v,–verbose Verbose output; emits file and meta data delimiters
[zhouhh@Hadoop48 ~]$ hadoop fs -ls /hbase/t1/44f07df0efbda367ca4ebcd41a0f82ca Found 5 items drwxr-xr-x - zhouhh supergroup 0 2012-10-16 14:49 /hbase/t1/44f07df0efbda367ca4ebcd41a0f82ca/.oldlogs -rw-r–r– 2 zhouhh supergroup 213 2012-10-16 14:49 /hbase/t1/44f07df0efbda367ca4ebcd41a0f82ca/.regioninfo drwxr-xr-x - zhouhh supergroup 0 2012-12-25 18:24 /hbase/t1/44f07df0efbda367ca4ebcd41a0f82ca/.tmp drwxr-xr-x - zhouhh supergroup 0 2012-12-25 18:24 /hbase/t1/44f07df0efbda367ca4ebcd41a0f82ca/info drwxr-xr-x - zhouhh supergroup 0 2012-12-25 15:37 /hbase/t1/44f07df0efbda367ca4ebcd41a0f82ca/recovered.edits [zhouhh@Hadoop48 ~]$ hadoop fs -ls /hbase/t1/44f07df0efbda367ca4ebcd41a0f82ca/info Found 1 items -rw-r–r– 2 zhouhh supergroup 1310 2012-12-25 18:24 /hbase/t1/44f07df0efbda367ca4ebcd41a0f82ca/info/4805f7a6e4924494803a255c3c686bbe
[zhouhh@Hadoop48 ~]$ hbase org.apache.hadoop.hbase.io.hfile.HFile -pf /hbase/t1/44f07df0efbda367ca4ebcd41a0f82ca/info/4805f7a6e4924494803a255c3c686bbe
K: /info:/1350387336446/Put/vlen=0/ts=0 V: K: /info:/1350387293594/Put/vlen=0/ts=0 V: K: /info:/1350386219450/Put/vlen=0/ts=0 V: K: foo/info:foo/1350387336443/Put/vlen=10/ts=0 V: foo-xFCxA1xA1xA1xA1xA1 K: foo/info:foo/1350387293578/Put/vlen=10/ts=0 V: foo-xFCxA1xA1xA1xA1xA1 K: foo/info:foo/1350386219323/Put/vlen=10/ts=0 V: foo-xFCxA1xA1xA1xA1xA1 K: foo-xE7x94x9FxE3x83x93xE3x83xBCxE3x83xAB/info:foo/1350387336448/Put/vlen=16/ts=0 V: foo-xE7x94x9FxE3x83x93xE3x83xBCxE3x83xAB K: foo-xE7x94x9FxE3x83x93xE3x83xBCxE3x83xAB/info:foo/1350387293597/Put/vlen=16/ts=0 V: foo-xE7x94x9FxE3x83x93xE3x83xBCxE3x83xAB K: foo-xE7x94x9FxE3x83x93xE3x83xBCxE3x83xAB/info:foo/1350386219478/Put/vlen=16/ts=0 V: foo-xE7x94x9FxE3x83x93xE3x83xBCxE3x83xAB K: foo-xFCxA1xA1xA1xA1xA1/info:foo/1350387336476/Put/vlen=10/ts=0 V: foo-xFCxA1xA1xA1xA1xA1 K: foo-xFCxA1xA1xA1xA1xA1/info:foo/1350387293599/Put/vlen=10/ts=0 V: foo-xFCxA1xA1xA1xA1xA1 K: foo-xFCxA1xA1xA1xA1xA1/info:foo/1350386219498/Put/vlen=10/ts=0 V: foo-xFCxA1xA1xA1xA1xA1 K: no1/info:name/1350370179806/Put/vlen=6/ts=0 V: zhouhh K: no2/info:name/1350370213338/Put/vlen=7/ts=0 V: zhouhh2 Scanned kv count -> 14
可以看到key的存储格式：rowkey/columnfamily/timestamp/Put/valuelen/ts/value
hbase(main):001:0> scan ‘t1’ ROW COLUMN+CELL column=info:, timestamp=1350387336446, value= foo column=info:foo, timestamp=1350387336443, value=foo-xFCxA1xA1xA1xA1xA1 foo-xE7x94x9FxE3x83x93xE3x83 column=info:foo, timestamp=1350387336448, value=foo-xE7x94x9FxE3x83x93xE3x83xBCxE3x83xAB xBCxE3x83xAB foo-xFCxA1xA1xA1xA1xA1 column=info:foo, timestamp=1350387336476, value=foo-xFCxA1xA1xA1xA1xA1 no1 column=info:name, timestamp=1350370179806, value=zhouhh no2 column=info:name, timestamp=1350370213338, value=zhouhh2 6 row(s) in 0.7380 seconds
如非注明转载, 均为原创. 本站遵循知识共享CC协议,转载请注明来源
