mariadb: Fixes incremental backup failure when full not created today
backup_full() saves the history name in $BACKUP_DIR/last_full_date.
backup_incremental() attempts to read from $BACKUP_DIR/last_full_date
into $LAST_FULL_DATE. After the read attempt; if $LAST_FULL_DATE is zero
length then $(date +%d-%m-%Y) is used.
Change-Id: I4172b814d5d95ae3debbc1cf3feaeee2e2bec9bd
Closes-bug: 1897948
(cherry picked from commit ccfe65b5f7
)
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@ -6,23 +6,31 @@ set -o pipefail
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# Execute a full backup
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backup_full() {
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echo "Taking a full backup"
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LAST_FULL_DATE=$(date +%d-%m-%Y)
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mariabackup \
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--defaults-file=/etc/mysql/my.cnf \
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--backup \
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--stream=xbstream \
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--history=$(date +%d-%m-%Y) | gzip > \
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--history=$LAST_FULL_DATE | gzip > \
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$BACKUP_DIR/mysqlbackup-$(date +%d-%m-%Y-%s).qp.xbc.xbs.gz
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echo $LAST_FULL_DATE > $BACKUP_DIR/last_full_date
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}
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# Execute an incremental backup
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backup_incremental() {
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echo "Taking an incremental backup"
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if [ -r $BACKUP_DIR/last_full_date ]; then
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LAST_FULL_DATE=$(cat $BACKUP_DIR/last_full_date)
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fi
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if [ -z $LAST_FULL_DATE ]; then
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LAST_FULL_DATE=$(date +%d-%m-%Y)
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fi
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mariabackup \
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--defaults-file=/etc/mysql/my.cnf \
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--backup \
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--stream=xbstream \
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--incremental-history-name=$(date +%d-%m-%Y) \
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--history=$(date +%d-%m-%Y) | gzip > \
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--incremental-history-name=$LAST_FULL_DATE \
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--history=$LAST_FULL_DATE | gzip > \
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$BACKUP_DIR/incremental-$(date +%H)-mysqlbackup-$(date +%d-%m-%Y-%s).qp.xbc.xbs.gz
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}
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@ -6,23 +6,31 @@ set -o pipefail
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# Execute a full backup
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backup_full() {
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echo "Taking a full backup"
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LAST_FULL_DATE=$(date +%d-%m-%Y)
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mariabackup \
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--defaults-file=/etc/mysql/my.cnf \
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--backup \
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--stream=xbstream \
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--history=$(date +%d-%m-%Y) | gzip > \
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--history=$LAST_FULL_DATE | gzip > \
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$BACKUP_DIR/mysqlbackup-$(date +%d-%m-%Y-%s).qp.xbc.xbs.gz
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echo $LAST_FULL_DATE > $BACKUP_DIR/last_full_date
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}
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# Execute an incremental backup
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backup_incremental() {
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echo "Taking an incremental backup"
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if [ -r $BACKUP_DIR/last_full_date ]; then
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LAST_FULL_DATE=$(cat $BACKUP_DIR/last_full_date)
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fi
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if [ -z $LAST_FULL_DATE ]; then
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LAST_FULL_DATE=$(date +%d-%m-%Y)
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fi
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mariabackup \
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--defaults-file=/etc/mysql/my.cnf \
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--backup \
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--stream=xbstream \
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--incremental-history-name=$(date +%d-%m-%Y) \
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--history=$(date +%d-%m-%Y) | gzip > \
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--incremental-history-name=$LAST_FULL_DATE \
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--history=$LAST_FULL_DATE | gzip > \
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$BACKUP_DIR/incremental-$(date +%H)-mysqlbackup-$(date +%d-%m-%Y-%s).qp.xbc.xbs.gz
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}
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@ -0,0 +1,6 @@
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---
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fixes:
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- |
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Fixes MariaDB incremental backup failure when full
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backup was not created the same day.
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`LP#1897948 <https://launchpad.net/bugs/1897948>`__
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