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Windows Pg_Dump Script

Hi ,

I recently developed a pg_dump windows based script, which can help us to schedule the pg_dump through pg_Agent or through windows scheduler.

This script also having the backup retention policy and in any case it retain the last two consistant backups. i.e, if the current backup is successful, then it will remove the 2nd last backup from the backup location .

@ECHO OFF

REM pgAgent Windows Pg_Dump Script 

set BIN="C:\Program Files\PostgreSQL\9.1\bin"
set BACKUPLOC="C:\Dump"
set LOGLOC="C:\Dump"
set DATABASES=%4
set USER=%3
set PORT=%2
set DT=%date%
set HOST=%1
REM DUMP MODE {CUSTOM,TAR,PLAIN}
set DUMP_MODE=CUSTOM 
set RETAIN_LAST_BACKUPS=2
%BIN%\psql -Atq -h %HOST% -U %USER% -p %PORT% -c "select translate(replace('%DT%','/','_'),' ','_');" postgres >_TMP
set /p DT=<_TMP

REM Creating Scheduled Backup

%BIN%\psql -Atq -h %HOST% -U %USER% -p %PORT% -c "select replace('%DATABASES%','""','');" postgres > _TMP
set /p DATABASES=<_TMP
FOR %%D IN ( %DATABASES% ) DO (
%BIN%\psql -Atq -h %HOST% -U %USER% -p %PORT% -c "select 'Pg Dump Start For DB %%D Time :: ' || now();" postgres >> %LOGLOC%\pgDump_%DT%.log
if %DUMP_MODE% EQU CUSTOM ( %BIN%\pg_dump -f %BACKUPLOC%\%HOST%_%%D_%PORT%_pgDump_%DT%.dmp -Fc -b -c -h %HOST% -U %USER% -p %PORT% %%D 2>_Error ) else ( if %DUMP_MODE% EQU TAR ( %BIN%\pg_dump -f %BACKUPLOC%\%HOST%_%%D_%PORT%_pgDump_%DT%.dmp -Ft -b -c -h %HOST% -U %USER% -p %PORT% %%D ) else ( if %DUMP_MODE% EQU PLAIN ( %BIN%\pg_dump -f %BACKUPLOC%\%HOST%_%%D_%PORT%_pgDump_%DT%.dmp -Fp -b -c -h %HOST% -U %USER% -p %PORT% %%D ) else ( exit ) ) ) >> %LOGLOC%\pgDump-%DT%.log 
FOR %%E IN ( _Error ) DO IF %%~zE EQU 0 (  FOR /f "tokens=*" %%F IN ( ' dir  /a /b /O-D %BACKUPLOC%\%HOST%_%%D_%PORT%_pgDump*.dmp^|more +%RETAIN_LAST_BACKUPS% ') DO ( echo %%F >>_Files_To_Delete  )  ) else (
echo Error Occured, Hence Keeping The Last Backups As It Is And Removing This Error Caused Dump ..
del /Q %BACKUPLOC%\%HOST%_%%D_%PORT%_pgDump_%DT%.dmp
)

%BIN%\psql -Atq -h %HOST% -U %USER% -p %PORT% -c "select 'Pg Dump End For DB %%D Time :: '||now();" postgres >> %LOGLOC%\pgDump-%DT%.log


REM Doing Retention Policy..
FOR /f "tokens=*" %%R IN ( 'type _Files_To_Delete' ) DO (  DEL /Q %BACKUPLOC%\%%R  )
DEL /Q _Files_To_Delete 

)
How to run
========
Script_Name <host> <Port> <User> "<DB1>,<DB2>,<DB3>,..."
దినేష్ కుమార్
Dinesh Kumar

Comments

  1. Not so far I have found new cool tool to work with postgresql on win - Valentina Studio. Its free edition can do things more than many commercial tools!!
    I very recommend check it. http://www.valentina-db.com/en/valentina-studio-overview

    ReplyDelete
  2. Good work. You have taken care of many possibilities.

    ReplyDelete

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