diff options
| -rw-r--r-- | files/handlers/rsync | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/files/handlers/rsync b/files/handlers/rsync index 01a2987..cb4db46 100644 --- a/files/handlers/rsync +++ b/files/handlers/rsync @@ -39,6 +39,7 @@ # keepdaily = for long storage format, specify the number of daily backup increments # keepweekly = for long storage format, specify the number of weekly backup increments # keepmonthly = for long storage format, specify the number of monthly backup increments +# lockfile = lockfile to be kept during backup execution # nicelevel = rsync command nice level # enable_mv_timestamp_bug = set to "yes" if your system isnt handling timestamps correctly # tmp = temp folder @@ -128,6 +129,7 @@ function eval_config { getconf keepdaily 5 getconf keepweekly 3 getconf keepmonthly 1 + getconf lockfile getconf nicelevel 0 getconf enable_mv_timestamp_bug no getconf tmp /tmp @@ -892,6 +894,45 @@ function test_connect { } +function set_lockfile { + + if [ ! -z "$lockfile" ]; then + mkdir -p `dirname $lockfile` + if ( set -o noclobber; echo "$$" > "$lockfile" ) &> /dev/null; then + trap 'unset_lockfile' INT TERM EXIT + else + fatal "Could not create lockfile $lockfile, exiting" + fi + fi + +} + +function unset_lockfile { + + if [ ! -z "$lockfile" ]; then + $rm -f $lockfile || warning "Could not remove lockfile $lockfile" + fi + +} + +function check_lockfile { + + local pid process + + if [ ! -z "$lockfile" ] && [ -f "$lockfile" ]; then + pid="`cat $lockfile`" + process="`ps --no-headers -o comm $pid`" + if [ "$?" == "0" ] && [ "`ps --no-headers -o comm $$`" == "$process" ]; then + info "Another backup is running for $lockfile, skipping run" + exit + else + info "Found old lockfile $lockfile, removing it" + unset_lockfile + fi + fi + +} + function set_filelist { filelist_flag="" @@ -1103,6 +1144,8 @@ function restore_pipefail { # the backup procedure eval_config +check_lockfile +set_lockfile set_rsync_options start_mux stop_services @@ -1136,6 +1179,7 @@ restore_pipefail mount_ro run_fsck start_services +unset_lockfile end_mux echo "Finnishing backup at `date`" >> $log |