mongodb 复制集secondary上运行的备份脚本

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1. #!/bin/bash
   
2. set -e
   
3. BACKUP_DIR="/goluk/backup/mongo"
   
4. MONGO_HOST="db03"
   
5. MONGO_DB="trip"
   
6. MONGO_DUMP_CMD="mongodump "
   
7. NUM=0
   
8. MONGO_EXCLUDE="trip_track"
   
9. BACK_FILE="$BACKUP_DIR/$MONGO_DB-$(date +%Y%m%d-%H%M).gz"
   
10. CMD="$BACKUP_DIR/$MONGO_DB-$(date +%Y%m%d-%H%M).CMD"
    
11. ALERTING="[email protected]"
    
12. error_trap() {
    
13. 
    
14.   echo " [LINE:$1] Error." |mail -s "mongodb backup failed" $ALERTING
    
15.   rm -fr $BACK_FILE $CMD
    
16. }
    
17. get_max_track_table() {
    
18.   id2=`mongo <<EOF
    
19.   use trip
    
20.   rs.slaveOk()
    
21.   db.trip_track_table.find({},{"id" : 1 , "_id" : 0}).sort({"id" : -1}).limit(1)
    
22. EOF`
    
23. echo $id2
    
24. }
    
25. set_exclude() {
    
26. 
    
27.   NUM=`echo $id2 |awk -F':| ' '{print $18}'`
    
28.   NUM2=`expr $NUM - 1 `
    
29.   MONGO_EXCLUDE="--excludeCollection=trip_track --excludeCollection=trip_track_{0..$NUM2}"
    
30.   echo $MONGO_EXCLUDE
    
31. }
    
32. 
    
33. 
    
34. main() {
    
35.   trap 'error_trap $LINENO' ERR
    
36.   get_max_track_table
    
37.   set_exclude
    
38.   echo "$MONGO_DUMP_CMD -h $MONGO_HOST:27017 -d $MONGO_DB $MONGO_EXCLUDE --gzip --archive=$BACK_FILE" >$CMD
    
39.   sh < $CMD
    
40.   rm -f $CMD
    
41. }
    
42. main