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fb_lock_print - Online in the Cloud

Run fb_lock_print in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command fb_lock_print that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


fb_lock_print - Information about Firebird database locks

SYNOPSIS


fb_lock_print -d database [option...]
fb_lock_print -f lockfile [option...]

DESCRIPTION


fb_lock_print is a tool for displaying the information from the Firebird lock system.
These are useful when debugging lock contention/conflict/performance problems.

OPTIONS


-d database
Print lock information about the specified database.

-f lockfile
Print lock information from the specified lock file. Firebird lock files live in
/tmp/firebird.

-o | -p
Print information about lock owner blocks. On by default.

-c Consistency mode. Blocks the lock manager so that no changes to the lock blocks can be
made while the information is gathered.

-l Print information about lock blocks.

-r Print information about lock request blocks.

-h Print information about lock history.

-a Print information about owner blocks, lock blocks, request blocks and history. Same
as "-o -l -r -h"

-s num
Print information about lock series num.

-i[filter] interval count
Enter interactive mode and continuously display lock counters per second.

Possible filters are:

a lock acquires

o lock operations: enqueues, convertions, downgrades, dequeues, reads, writes and
queries

t lock operations by type.

w lock waits

If no filter is given, all activity is shown.

interval is the interval in seconds between displays. count instructs fb_lock_print to
exit after that many displays.

-w Print recursive list of locks each lock waits for.

-m HTML output.

AUTHOR & COPYRIGHT


Copyright (C) Damyan Ivanov, 2009.

This manpage was written by Damyan Ivanov for the Debian project but may be used by
others. Permission is granted to use this document, with or without modifications,
provided that this notice is retained. If we meet some day, and you think this stuff is
worth it, you can buy me a beer in return.

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