Re: [Exist-open] Seeking advice on setting up rotating database backup files and more

[ssire <ste...@ep...>]

It seems there is also a BackupSystemTask alternative for backup and it
supports a zip-files-max parameter :

<parameter name="zip-files-max" value="4"/>

Unfortunately this parameter is not available for ConsistencyCheckTask as
stated in [1].

So to summarize here is my understanding of the differences between the 3
different ways to schedule database backups inside conf.xml :

- ConsistencyCheckTask : applies to full /db, including binary files, no
built-in rotating backups, safe as it does a consistency check before
backup, non blocking for read operations
- DataBackup : applies to full /db, excluding binary files, no built-in
rotating backups, unsafe because *.dbx files snapshot, the fastest 
- BackupSystemTask : applies to any collection, built-in rotating backups,
safe as it waits for all transactions to terminate, but reported to stop
functioning after a few days [2] which I confirm since I have the same
problem (at least with eXist 1.4.1 under tomcat)

Now to come back to my initial question, rotating backup with
ConsistencyCheckTask, I finally wrote a shell script cleanup-backups.sh
which I reproduce below and that should keep only MAX_DAYS of backups inside
BACKUPS_DIR when run daily using a cron job. It is based on the generated
standardized timestamped backup file names produced by the
ConsistencyCheckTask.

Stephane
---

[1] http://markmail.org/message/45nrccmyfqmbdsnb
[2] http://exist-open.markmail.org/thread/7eue5kro5w2hgpi2


#! /bin/sh
MAX_DAYS=8
BACKUPS_DIR="/path/to/your/backup/dir"
DATE_LIMIT=`date -v -"$MAX_DAYS"d "+%Y%m%d-%H%M"`
echo "At `date "+%H:%M on %Y-%m-%d"` removing backups anteriors to
$DATE_LIMIT"
FULL="`ls -1 "$BACKUPS_DIR"/full*`"
for F in $FULL; do
  if [ $(expr ${F#$BACKUPS_DIR/full} \< "$DATE_LIMIT.zip") -eq 1 ]
  then
    echo "deleting $F"; rm $F
  fi
done
INC="`ls -1 "$BACKUPS_DIR"/inc*`"
for F in $INC; do
  if [ $(expr ${F#$BACKUPS_DIR/inc} \< "$DATE_LIMIT.zip") -eq 1 ]
  then
    echo "deleting $F"; rm $F
  fi
done



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