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DLMDB_COPY(1) General Commands Manual DLMDB_COPY(1) NAME dlmdb_copy - DLMDB environment copy tool SYNOPSIS mdb_copy [-V] [-c] [-n] [-v] srcpath [dstpath] DESCRIPTION The dlmdb_copy utility copies an LMDB environment. The environment can be copied regardless of whether it is currently in use. No lockfile is cre- ated, since it gets recreated at need. If dstpath is specified it must be the path of an empty directory for stor- ing the backup. Otherwise, the backup will be written to stdout. OPTIONS -V Write the library version number to the standard output, and exit. -c Compact while copying. Only current data pages will be copied; freed or unused pages will be omitted from the copy. This option will slow down the backup process as it is more CPU-intensive. Currently it fails if the environment has suffered a page leak. -n Open LDMB environment(s) which do not use subdirectories. -v Use the previous environment state instead of the latest state. This may be useful if the latest state has been corrupted. DIAGNOSTICS Exit status is zero if no errors occur. Errors result in a non-zero exit status and a diagnostic message being written to standard error. CAVEATS This utility can trigger significant file size growth if run in parallel with write transactions, because pages which they free during copying can- not be reused until the copy is done. SEE ALSO dlmdb_stat(1) AUTHOR Howard Chu of Symas Corporation <http://www.symas.com> DLMDB 0.9.70 2017/07/31 DLMDB_COPY(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | DIAGNOSTICS | CAVEATS | SEE ALSO | AUTHOR
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