fdb dump¶

Dump the structural contents of the FDB. In particular, in the TOC formulation, enumerate the different entries in the Table of Contents (including INIT and CLEAR entries).

The dump will include information identifying the data files that are referenced, and the “Axes” which describe the maximum possible extent of the data that is contained in the database.

Usage¶

fdb dump [options] [request1] [request2] ...

Options¶

`--simple`	Also print the location of each field
`--ignore-errors`	Ignore errors (report them as warnings) and continue processing wherever possible
`--raw`	Don’t apply (contextual) expansion and checking on requests
`--all`	Visit all FDB databases (for testing)
`--config=string`	FDB configuration filename.

Examples¶

Example 1¶

Pass a partial request (as a key), to dump the contents of all databases in the FDB that match that key.

% fdb dump class=od,stream=oper

TOC_INIT  2017-01-05 10:16:44.036480, version:1, fdb: 70700, uid: <id>, pid 1367 , host: glados
  Key: {class=od,expver=0001,stream=oper,date=20160907,time=0000,domain=g}

TOC_INDEX 2017-01-05 10:16:44.086367, version:1, fdb: 70700, uid: <id>, pid 1367 , host: glados
  Path: an:pl.20170105.101644.glados.5871220293633.index, offset: 0, type: BTreeIndex
  Prefix: an:pl, key: {type=an,levtype=pl}
  Files:
    0   => /data/fdb/od:0001:oper:20160907:0000:g/an:pl.20170105.101644.glados.5871220293634.data
    Axes:
      levelist
        1000
        300
        400
        500
        700
        850
        param
        130
        step
        0

Dumping <path>testcases/fdb5/fdb_root/root/od:0001:oper:20160907:1200:g

Example 2¶

The –simple option provides a more concise output.

% fdb dump --simple class=od,expver=0001
TOC_INIT  2017-01-05 10:16:44.059914, version:1, fdb: 70700, uid: <id>, pid 1367 , host: glados  Key: {class=od,expver=0001,stream=oper,date=20160907,time=1200,domain=g}
TOC_INDEX 2017-01-05 10:16:44.095547, version:1, fdb: 70700, uid: <id>, pid 1367 , host: glados  Path: an:pl.20170105.101644.glados.5871220293636.index, offset: 0, type: BTreeIndex  Prefix: an:pl, key: {type=an,levtype=pl}

Example 3¶

The –all option visits all available entries

% fdb dump --simple --all
TOC_INIT  2017-01-05 10:16:44.059914, version:1, fdb: 70700, uid: <id>, pid 1367 , host: glados  Key: {class=od,expver=0001,stream=oper,date=20160907,time=1200,domain=g}
TOC_INDEX 2017-01-05 10:16:44.095547, version:1, fdb: 70700, uid: <id>, pid 1367 , host: glados  Path: an:pl.20170105.101644.glados.5871220293636.index, offset: 0, type: BTreeIndex  Prefix: an:pl, key: {type=an,levtype=pl}