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gnt-debug

man page of gnt-debug

gnt-debug: Debug commands

NAME
gnt-debug - Debug commands
SYNOPSIS
gnt-debug {command} [arguments...]

DESCRIPTION

The gnt-debug is used for debugging the Ganeti system.

COMMANDS

ALLOCATOR allocator [--debug] [--dir DIRECTION] {--algorithm ALLOCATOR } [--mode MODE] [--mem MEMORY] [--disks DISKS] [--disk-template TEMPLATE] [--nics NICS] [--os-type OS] [--vcpus VCPUS] [--tags TAGS] {instance} Executes a test run of the iallocator framework. The command will build input for a given iallocator script (named with the --algorithm option), and either show this input data (if DIRECTION is in) or run the iallocator script and show its output (if DIRECTION is out). If the MODE is allocate, then an instance definition is built from the other arguments and sent to the script, otherwise (MODE is relocate) an existing instance name must be passed as the first argument. This build of Ganeti will look for iallocator scripts in the following directories: /usr/local/lib/ganeti/iallocators,/usr/lib/ganeti/iallocators; for more details about this framework, see the HTML or PDF documentation. DELAY delay [--debug] [--no-master] [-n NODE...] {duration} Run a test opcode (a sleep) on the master and on selected nodes (via an RPC call). This serves no other purpose but to execute a test operation. The -n option can be given multiple times to select the nodes for the RPC call. By default, the delay will also be executed on the master, unless the --no-master option is passed. The delay argument will be interpreted as a floating point number. SUBMIT-JOB submit-job [--verbose] [--timing-stats] [--job-repeat N] [--op-repeat N] {opcodes_file...} This command builds a list of opcodes from files in JSON format and submits a job per file to the master daemon. It can be used to test options that are not available via command line. The verbose option will additionally display the corresponding job IDs and the progress in waiting for the jobs; the timing-stats option will show some overall statistics inluding the number of total opcodes, jobs submitted and time spent in each stage (submit, exec, total). The job-repeat and op-repeat options allow to submit multiple copies of the passed arguments; job-repeat will cause N copies of each job (input file) to be submitted (equivalent to passing the arguments N times) while op-repeat will cause N copies of each of the opcodes in the file to be executed (equivalent to each file containing N copies of the opcodes). TEST-JOBQUEUE test-jobqueue Executes a few tests on the job queue. This command might generate failed jobs deliberately. LOCKS locks [--no-headers] [--separator=SEPARATOR] [-v] [-o [+]FIELD,...] [--interval=SECONDS] Shows a list of locks in the master daemon. The --no-headers option will skip the initial header line. The --separator option takes an argument which denotes what will be used between the output fields. Both these options are to help scripting. The -v option activates verbose mode, which changes the display of special field states (see ganeti(7)). The -o option takes a comma-separated list of output fields. The available fields and their meaning are: name Lock name mode Mode in which the lock is currently acquired (exclusive or shared) owner Current lock owner(s) pending Threads waiting for the lock If the value of the option starts with the character +, the new fields will be added to the default list. This allows to quickly see the default list plus a few other fields, instead of retyping the entire list of fields. Use --interval to repeat the listing. A delay specified by the option value in seconds is inserted.

REPORTING BUGS

Report bugs to project website (//code.google.com/p/ganeti/) or contact the developers using the Ganeti mailing list (ganeti@googlegroups.com).

SEE ALSO

Ganeti overview and specifications: ganeti(7) (general overview), ganeti-os-interface(7) (guest OS definitions). Ganeti commands: gnt-cluster(8) (cluster-wide commands), gnt-job(8) (job-related commands), gnt-node(8) (node-related commands), gnt- instance(8) (instance commands), gnt-os(8) (guest OS commands), gnt- group(8) (node group commands), gnt-backup(8) (instance import/export commands), gnt-debug(8) (debug commands). Ganeti daemons: ganeti-watcher(8) (automatic instance restarter), ganeti-cleaner(8) (job queue cleaner), ganeti-noded(8) (node daemon), ganeti-masterd(8) (master daemon), ganeti-rapi(8) (remote API daemon).
COPYRIGHT
Copyright (C) 2006, 2007, 2008, 2009, 2010 Google Inc. Permission is granted to copy, distribute and/or modify under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL. GNT-DEBUG(8)
 
 
 

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