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87 lines
2.4 KiB
Groff
87 lines
2.4 KiB
Groff
.\" Copyright 2015-2021 Leonid Yuriev <leo@yuriev.ru>.
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.\" Copyright 2012-2015 Howard Chu, Symas Corp. All Rights Reserved.
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.\" Copyright 2015,2016 Peter-Service R&D LLC <http://billing.ru/>.
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.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
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.TH MDBX_STAT 1 "2021-05-09" "MDBX 0.10.0"
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.SH NAME
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mdbx_stat \- MDBX environment status tool
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.SH SYNOPSIS
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.B mdbx_stat
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[\c
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.BR \-V ]
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[\c
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.BR \-q ]
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[\c
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.BR \-p ]
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[\c
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.BR \-e ]
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[\c
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.BR \-f [ f [ f ]]]
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[\c
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.BR \-r [ r ]]
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[\c
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.BR \-a \ |
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.BI \-s \ subdb\fR]
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.BR \ dbpath
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[\c
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.BR \-n ]
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.SH DESCRIPTION
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The
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.B mdbx_stat
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utility displays the status of an MDBX environment.
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.SH OPTIONS
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.TP
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.BR \-V
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Write the library version number to the standard output, and exit.
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.TP
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.BR \-q
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Be quiet.
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.TP
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.BR \-p
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Display overall statistics of page operations of all (running, completed
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and aborted) transactions in the current multi-process session (since the
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first process opened the database after everyone had previously closed it).
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.TP
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.BR \-e
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Display information about the database environment.
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.TP
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.BR \-f
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Display information about the environment GC.
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If \fB\-ff\fP is given, summarize each GC/freelist entry.
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If \fB\-fff\fP is given, display the full list of page IDs in the GC/freelist.
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.TP
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.BR \-r
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Display information about the environment reader table.
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Shows the process ID, thread ID, and transaction ID for each active
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reader slot. The process ID and transaction ID are in decimal, the
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thread ID is in hexadecimal. The transaction ID is displayed as "-"
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if the reader does not currently have a read transaction open.
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If \fB\-rr\fP is given, check for stale entries in the reader
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table and clear them. The reader table will be printed again
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after the check is performed.
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.TP
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.BR \-a
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Display the status of all of the subdatabases in the environment.
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.TP
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.BR \-s \ subdb
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Display the status of a specific subdatabase.
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.TP
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.BR \-n
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Display the status of an MDBX database which does not use subdirectories.
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This is legacy option. For now MDBX handles this automatically
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for existing databases, but may be required while creating new.
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.SH DIAGNOSTICS
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Exit status is zero if no errors occur.
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Errors result in a non-zero exit status and
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a diagnostic message being written to standard error.
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.SH "SEE ALSO"
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.BR mdbx_chk (1),
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.BR mdbx_copy (1),
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.BR mdbx_dump (1),
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.BR mdbx_load (1)
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.BR mdbx_drop (1)
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.SH AUTHOR
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Howard Chu of Symas Corporation <http://www.symas.com>,
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Leonid Yuriev <https://github.com/erthink>
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