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Revision as of 21:22, 15 December 2020
Presentation
Script $gvsqw_CasBin/sqwcas_Backup.ksh :
Run a backup on all nodes
- Scope of execution (by default: Local)
** Local => seulement le node local
** LocalNode => seulement le node local
** Node_$NodeName => seulement sur le node '$NodeName'
** LocalDC => tous les nodes sur local datacenter
** DC_$DCName => tous les nodes sur datacenter '$DCName'
** All => tous les nodes sur cluster(tous les datacenters)
** AllNodes => tous les nodes sur cluster(tous les datacenters)
** AllDC => tous les nodes sur cluster(tous les datacenters)
Online help
The online help is available for most scripts with the -h option.
Ex: $gvsqw_CasBin/sqwcas_Backup.ksh -h
Content of this assistance :
Sourcing sqwcas_Global.lib v2025.10 SQWareProduction for Cassandra (dbSQWare) ...
Usage: sqwcas_Backup.ksh [-h] -I <CAS_SID> -Type <backup type> [+ options]
DESCRIPTION
sqwcas_Backup.ksh Run backup on all nodes
SUPPORT
Cassandra supported versions: 2.0 <= v <= 4.0
PARAMETERS
-I instance : Target instance.
-Type type : Type of backup full (snapshot) or inc (backup).
OPTIONS
-h : Display the full usage.
-s : Display samples of usage.
-S scope : Scope of the execution (by default: All).
Local => only on the local node.
LocalNode => only on the local node.
Node_$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).
-P Nb threads : Number of threads in parallel (by default 3).
-HI Nb : Nb of generations to keep (by default 2).
-AGR Nb_sec : Nb of seconds between two runs (by default 0s).
-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 'demo-sqwarebox@dbsqware.com'.
-Timeout Nb_sec : Timeout kill of ssh session.
-SendReport : Send execution log report.
-NoMail : Deactivate sendmail on error demo-sqwarebox@dbsqware.com (by default, send on error).
-Locale locale : Force Locale for help display (fr,en).
-NoDelete : Keep history.
-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_Backup.ksh [-h] -I <instance> -C <command options> [+ options] For full help : sqwcas_Backup.ksh -h
If you are connecting through a terminal, no mail will be sent and you will have more this kind of message:
Begining : 2020-12-15 21:21:45 End : 2020-12-15 21:21:45 Duration : 00:00:00
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 v2025.10 SQWareProduction for Cassandra (dbSQWare) ... #Standard help for script sqwcas_Backup.ksh: $gvsqw_CasBin/sqwcas_Backup.ksh -h #Display online help for this script $gvsqw_CasBin/sqwcas_Backup.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_Backup.ksh -s #Display usage examples for this script $gvsqw_CasBin/sqwcas_Backup.ksh -I $CAS_SID -Type <BackupType> #Display generated commands without execute them ! $gvsqw_CasBin/sqwcas_Backup.ksh -I $CAS_SID -Type <BackupType> -HI 4 -Exec #Execute backup with the selected type of backup : 'full' (snapshot) or 'inc' (backup), and keep 4 historical backup $gvsqw_CasBin/sqwcas_Backup.ksh -I $CAS_SID -Type <BackupType> -S <Scope> -HI <NumberOfGenerations> -Exec #Changes the scope <Scope> of execution (local by default) and the number of backup generations <NumberOfGenerations> to keep (by default 2), manage by $gvsqw_backupNbGeneration) $gvsqw_CasBin/sqwcas_Backup.ksh -I $CAS_SID -Type <BackupType> -NoDelete -Exec #Retains backup history (by default 2, managed by $gvsqw_backupNbGeneration) $gvsqw_CasBin/sqwcas_Backup.ksh -I $CAS_SID -Type <BackupType> -AGR 20 -Exec #Set the waiting time in seconds between two command run, 20s here (by default is 0 manage by $lvsqw_AggressivenessRun) $gvsqw_CasBin/sqwcas_Backup.ksh -I $CAS_SID -Type <BackupType> -AGE 40 -Exec #Set the waiting time in seconds between two end checks, 40s here (by default is 5 manage by $lvsqw_AggressivenessCheckEnd) $gvsqw_CasBin/sqwcas_Backup.ksh -I $CAS_SID -Type <BackupType> -P <NumericValue> -Exec #Run sqwcas_Backup.ksh script with a parallel degree of '<NumericValue>' #Use by default the variable gvsqw_NbThreadXXX in $gvsqw_<gvsqw_RdbmsTrigram>/../etc/sqw<gvsqw_RdbmsTrigram>_GlobalVar.cfg #You can change this default on all your environnement if you set this variable #in configuration file $gvsqw_<gvsqw_RdbmsTrigram>/../etc_cust/sqw<gvsqw_RdbmsTrigram>_GlobalVar.cfg $gvsqw_CasBin/sqwcas_Backup.ksh -I $CAS_SID -Type <BackupType> -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_Backup.ksh -I $CAS_SID -Type <BackupType> -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_Backup.ksh -I $CAS_SID -Type <BackupType> -NoMail -Exec #Disables sending an email on error to $gvsqw_GlobalMail (by default, send on error) $gvsqw_CasBin/sqwcas_Backup.ksh -I $CAS_SID -Type <BackupType> -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_Backup=<NumericValue> #in configuration file $gvsqw_CasBin/../etc_cust/sqwcas_GlobalVar.cfg