NAME

SYNOPSIS

DESCRIPTION

OPTIONS

-V

Write the library version number to the standard output, and exit.

-v

Produce verbose output, including summarize space and page usage statistics. If -vv is given, be more verbose, show summarized B-tree info and space allocation. If -vvv is given, be more verbose, include summarized statistics of leaf B-tree pages. If -vvvv is given, be even more verbose, show info of each page during B-tree traversal and basic info of each GC record. If -vvvvv is given, turn maximal verbosity, display the full list of page IDs in the GC records and size of each key-value pair of database(s).

-q

Be quiet; do not output anything even if an error was detected.

-c

Force using cooperative mode while opening environment, i.e. don't try to open in exclusive/monopolistic mode. Only exclusive/monopolistic mode allow complete check, including full check of all meta-pages and actual size of database file.

-w

Open environment in read-write mode and lock for writing while checking. This could be impossible if environment already used by another process(s) in an incompatible read-write mode. This allow rollback to last steady commit (in case environment was not closed properly) and then check transaction IDs of meta-pages. Otherwise, without -w option environment will be opened in read-only mode.

-d

Disable page-by-page traversal of B-tree. In this case, without B-tree traversal, it is unable to check for lost-unused pages nor for double-used pages.

-i

Ignore wrong order errors, which will likely false-positive if custom comparator(s) was used.

-s subdb

Verify and show info only for a specific subdatabase.

-0|-1|-2

Using specific meta-page 0, or 2 for checking.

-t

Turn to a specified meta-page on successful check.

-T

Turn to a specified meta-page EVEN ON UNSUCCESSFUL CHECK!

-n

Open MDBX environment(s) which do not use subdirectories. This is legacy option. For now MDBX handles this automatically.

DIAGNOSTICS

SEE ALSO

AUTHOR