SQWareProduction:cassandra:bin:sqwcas RollingRestart.ksh
Contents
Presentation
Script $gvsqw_CasBin/sqwcas_RollingRestart.ksh :
Run 'stop/start/restart' cassandra on selected nodes
You have to select le options of nodetool to execute
You can also choose:
- Aggressiveness of run (number of seconds between two runs)
- Aggressiveness of check end (number of seconds between two checks of end)
- Scope of the execution (by default: Local)
** Local => only on the local node
** LocalNode => only on the local node
** Node_$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: $gvsqw_CasBin/sqwcas_RollingRestart.ksh -h
Content of this assistance :
Sourcing sqwcas_Global.lib v2024.02 SQWareProduction for Cassandra (dbSQWare) ...
Usage: sqwcas_RollingRestart.ksh [-h] -I <CAS_SID> [+ options]
DESCRIPTION
sqwcas_RollingRestart.ksh Run 'stop/start/restart' cassandra on selected nodes
SUPPORT
Cassandra supported versions: 2.0 <= v <= 4.0
PARAMETERS
-I instance : Target instance.
OPTIONS
-h : Display the full usage.
-s : Display samples of usage.
-A action : Action (start, stop, restart : by default restart).
-S scope : Scope of the execution (by default: Local).
Local => only on the local node.
LocalNode => only on the local node.
Node_$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).
-FRT code : Force return code value on error.
-AddMail email : Email address to add at 'pmexpdba@gmail.com'.
-Timeout Nb_sec : Timeout before kill off 'nodetool drain' command when stop (by default 900).
-SendReport : Send execution log report.
-Dynamic : Force dynamic discovery of nodes (by default, search in $gvsqw_RootCfg/.clucfg generated by sqwcas_GenNodesConf.ksh).
-NoMail : Disable sendmail on error pmexpdba@gmail.com (by default, send on error).
-Locale locale : Force Locale for help display (fr,en).
-Wait : Wait between two nodes restart (by default 120).
-Exec : Execute commands (by default, display generated commands).
Error management
Errors passing arguments
This type of message is generated:
Lack 'CAS_SID' parameter, Usage: sqwcas_RollingRestart.ksh [-h] -I <CAS_SID> [+ options] For full help : sqwcas_RollingRestart.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).
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).
Usage examples
Sourcing sqwcas_Global.lib v2024.02 SQWareProduction for Cassandra (dbSQWare) ... #Standard help for script sqwcas_RollingRestart.ksh: $gvsqw_CasBin/sqwcas_RollingRestart.ksh -h #Display online help for this script $gvsqw_CasBin/sqwcas_RollingRestart.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_RollingRestart.ksh -s #Display usage examples for this script $gvsqw_CasBin/sqwcas_RollingRestart.ksh -I $CAS_SID -A <Action> -S <scope> #Display generated commands without execute them ! $gvsqw_CasBin/sqwcas_RollingRestart.ksh -I $CAS_SID -A <Action> -S <scope> -Exec #Execute action <Action> (start, stop, restart is default) on the instance $CAS_SID and for the <scope> selected : All, AllDC (by default is locale) or -Dynamic $gvsqw_CasBin/sqwcas_RollingRestart.ksh -I CAS_01 -A 'stop' -Dynamic -Wait 42 -Exec #Execute stop on the instance CAS_01, for dynamic discovery of nodes and wait 42 secondes between each retart $gvsqw_CasBin/sqwcas_RollingRestart.ksh -I $CAS_SID -S <scope> -Timeout 1500 -Exec #Timeout in seconds for kill inactive ssh session (by default is 7200, manage by $gvsqw_TimeOutStop) $gvsqw_CasBin/sqwcas_RollingRestart.ksh -I $CAS_SID -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_RollingRestart.ksh -I $CAS_SID -SendReport -Exec #Send the log by email at the end of the treatment even if there is no error $gvsqw_CasBin/sqwcas_RollingRestart.ksh -I $CAS_SID -NoMail -Exec #Disables sending an email on error to $gvsqw_GlobalMail (by default, send on error) $gvsqw_CasBin/sqwcas_RollingRestart.ksh -I $CAS_SID -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_RollingRestart=<NumericValue> #in configuration file $gvsqw_CasBin/../etc_cust/sqwcas_GlobalVar.cfg
