SQWareProduction:cassandra:bin:sqwcas CentralisedNodetool.ksh

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Presentation

Script $gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh :


Execute nodetool command on all selected nodes in parallel
You have to select le options of nodetool to execute
You can also choose:

  • Aggressiveness of run (number of seconds between two runs)
  • Aggressiveness of check end (number of seconds between two checks of end)
  • Scope of the execution (by default: Local)


** Local => only on the local node
** LocalNode => only on the local node
** Node_$NodeName => only on the node '$NodeName'
** LocalDC => all nodes on the local datacenter
** DC_$DCName => all nodes on the datacenter '$DCName'
** All => all nodes on the cluster(all datacenters)
** AllNodes => all nodes on the cluster(all datacenters)
** AllDC => all nodes on the cluster(all datacenters)

  • Force dynamic discovery of nodes (by default, search in $gvsqw_RootCfg/CAS_CHR_PRD.clucfg generated by sqwcas_GenNodesConf.ksh)



Online help

The online help is available for most scripts with the -h option.
Ex: $gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -h
Content of this assistance : 

Sourcing sqwcas_Global.lib v2024.02 SQWareProduction for Cassandra (dbSQWare) ... 

Usage: sqwcas_CentralisedNodetool.ksh [-h] -I <CAS_SID> -C <command options> [+ options]

DESCRIPTION
   sqwcas_CentralisedNodetool.ksh Run 'nodetool' command on selected nodes
SUPPORT
   Cassandra supported versions: 2.0 <= v <= 4.0

PARAMETERS
     -I  instance       : Target instance.
     -C  command        : Options for the nodetool command (ex: 'version', 'compact keyspace column_family' or other).
OPTIONS
     -h                 : Display the full usage.
     -s                 : Display samples of usage.
     -S    scope        : Scope of the execution (by default: Local).
                             Local           => only on the local node.
                             LocalNode       => only on the local node.
                             Node_$NodeName => only on the node '$NodeName'.
                             LocalDC         => all nodes on the local datacenter.
                             DC_$DCName     => all nodes on the datacenter '$DCName'.
                             All             => all nodes on the cluster(all datacenters).
                             AllNodes        => all nodes on the cluster(all datacenters).
                             AllDC           => all nodes on the cluster(all datacenters).
     -AGR Nb_sec        : Nb of seconds between two runs (by default 1s).
     -AGE Nb_sec        : Nb of seconds between two checks of end (by default 5s).
     -FRT       code    : Force return code value on error.
     -AddMail   email   : Email address to add at 'pmexpdba@gmail.com'.
     -Timeout Nb_sec    : Timeout kill of ssh session.
     -SendReport        : Send execution log report.
     -Dynamic           : Force dynamic discovery of nodes (by default, search in $gvsqw_RootCfg/.clucfg generated by sqwcas_GenNodesConf.ksh).
     -NoMail            : Deactivate sendmail on error pmexpdba@gmail.com (by default, send on error).
     -Locale    locale  : Force Locale for help display (fr,en).
     -Exec              : Execute commands (by default, display generated commands).
Nuvola apps information.png
Note:
To be sure the aid is accurate, refer directly to the online help script -h option.


Error management

Errors passing arguments

This type of message is generated: 

Lack 'CAS_SID' parameter, Usage: sqwcas_CentralisedNodetool.ksh [-h] -I <CAS_SID> -C <command options> [+ options]
For full help : sqwcas_CentralisedNodetool.ksh -h

If you are connecting through a terminal, no mail will be sent and you will have more this kind of message: 

Not sending mail because you are in connected mode !!!
Lack 'CAS_SID' parameter

If you are not connected to a terminal, the error message appears and is sent by mail to the address contained in the variable $gvsqw_GlobalMail (See help customize this variable). The subject line will always start by "$gvsqw_MailMsg_cassandra : " (See help customize this variable).

Nuvola apps information.png
Note:
Sending mail can be disabled by the option -NoMail for one execution.


Execution errors

Whether you are or not connected to a terminal, the error message appears and an email containing a summary of treatment errors is sent to the address contained in the variable $gvsqw_Mail_cassandra (See help customize this variable). The subject line will always start by "$gvsqw_MailMsg_cassandra : " (See help customize this variable).

Nuvola apps information.png
Note:
Sending mail can be disabled by the option -NoMail for one execution.


Usage examples

Sourcing sqwcas_Global.lib v2024.02 SQWareProduction for Cassandra (dbSQWare) ... 

#Standard help for script sqwcas_CentralisedNodetool.ksh:

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -h
#Display online help for this script

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -Locale en -h
#Display online help for this script with forcing of the 'en' locale (by default locale managed by $gvsqw_Locale)

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -s
#Display usage examples for this script

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options>
#Generate commands but don't execute them !

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -Exec
#Execute nodetool command on all selected nodes in parallel (by default is local only)

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C 'version' -S <scope> -Exec
#Execute 'nodetool version' command on <scope> nodes of the cluster : All, LocalDC ...

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -S All -Dist -Exec
#Execute 'nodetool version' command on <scope> nodes, with distant connection on non-local instance $XXX and for All nodes
#You need to register credentials to use for distant connection to the instance (user and so on) in file $gvsqw_DistPasswdFile

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -Timeout -Exec
#Timeout in seconds for kill inactive ssh session (by default is 3600, manage by $gvsqw_TimeOut)

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -Dynamic -Exec
#Force dynamic discovery of nodes (by default, search in \$gvsqw_RootCfg/$CAS_SID.clucfg)

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -AGR 20 -Exec
#Set the waiting time in seconds between two command run, 20s here (by default is 10)

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -AGE 40 -Exec
#Set the waiting time in seconds between two end checks, 40s here (by default is 30)

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -AddMail 'mymail1@mydomaine.com,mymail2@mydomaine.com' -Exec
#Add the mail list to the default address managed by $gvsqw_GlobalMail (only this time), if needed separate by commas 

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -SendReport -Exec
#Send the log by email at the end of the treatment even if there is no error (by default, send on error)

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -NoMail -Exec
#Disables sending an email on error to $gvsqw_GlobalMail (by default, send on error)

$gvsqw_CasBin/sqwcas_CentralisedNodetool.ksh -I $CAS_SID -C <command options> -FRT <NumericValue> -Exec
#Force return code to '<NumericValue>' on error (if no error, "exit 0!")
#You can also force return code of this script on all your
#environnement if you set the variable: $gvsqw_ForcedReturnCodeScript_sqwcas_CentralisedNodetool=<NumericValue>
#in configuration file $gvsqw_CasBin/../etc_cust/sqwcas_GlobalVar.cfg
Nuvola apps information.png
Note:
To be sure the examples are accurate, refer directly to the online help script -s option.


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