UniFi уменьшить размер БД

/var/lib/unifi/prune.js

// keep N-day worth of data
   days=30;
   dryrun=true;

   use ace;
   collectionNames = db.getCollectionNames();
   for (i=0; i < collectionNames.length; i++) {
            name = collectionNames[i];
            query = null;
            if (name.indexOf('stat')==0 || name.indexOf('event')==0 || name.indexOf('alarm')==0) {
                query = {time: {$lt:new Date().getTime()-days*86400*1000}};
            }
            if (name.indexOf('session')==0) {
                query = {assoc_time: {$lt:new Date().getTime()/1000-days*86400}};
            }
            if (name.indexOf('user')==0) {
                query = {last_seen: {$lt:new Date().getTime()/1000-days*86400}};
            }
            if (query) {
                count = db.getCollection(name).find(query).count();
                print((dryrun ? "[dryrun] " : "") + "pruning " + count + " entries from " + name + "... ");
                if (!dryrun)
                 db.getCollection(name).remove(query);
            }
   }
   if (!dryrun) db.repairDatabase();

Запускаем:

mongo --port=27117 < /var//lib/unifi/prune.js       

Для отработки скрипта рисуем dryrun=false;

Запускаем. Ответ содержит:

{
        "errmsg" : "Cannot repair database ace having size: 1023410176 (bytes) because free disk space is: 325328896 (bytes)",
        "ok" : 0
}
bye

Сжать базу хотели менно для увеличения свободного места на диске.
Увеличил раздел. Выполняем:

[email protected]:~# df -h
Filesystem                                              Size  Used Avail Use% Mounted on
rootfs                                                   11G  6.1G  4.1G  61% /
udev                                                     10M     0   10M   0% /dev
tmpfs                                                    50M  232K   50M   1% /run
/dev/disk/by-uuid/21f7510b-f6a9-470b-bde9-58b22866dbef   11G  6.1G  4.1G  61% /
tmpfs                                                   5.0M     0  5.0M   0% /run/lock
tmpfs                                                   336M     0  336M   0% /run/shm

[email protected]:~# mongo --port=27117 < /var/lib/unifi/prune.js
MongoDB shell version: 2.0.6
connecting to: 127.0.0.1:27117/test
30
false
switched to db ace
[
        "admin",
        "alarm",
        "alarmdef",
        "cache_device",
        "cache_login",
        "cache_scan",
        "cache_sta",
        "cache_stat",
        "device",
        "event",
        "guest",
        "map",
        "map.chunks",
        "map.files",
        "payment",
        "privilege",
        "rogue",
        "session",
        "setting",
        "site",
        "stat_current",
        "stat_daily",
        "stat_hourly",
        "stat_life",
        "stat_minute",
        "stat_monthly",
        "system.indexes",
        "task",
        "user",
        "usergroup",
        "verification",
        "voucher",
        "wlanconf",
        "wlangroup"
]
pruning 0 entries from alarm...
pruning 0 entries from alarmdef...
pruning 0 entries from event...
pruning 5 entries from session...
pruning 0 entries from stat_current...
pruning 0 entries from stat_daily...
pruning 10 entries from stat_hourly...
pruning 0 entries from stat_life...
pruning 0 entries from stat_minute...
pruning 0 entries from stat_monthly...
pruning 0 entries from user...
pruning 0 entries from usergroup...
null
{ "ok" : 1 }
bye

[email protected]:~# df -h
Filesystem                                              Size  Used Avail Use% Mounted on
rootfs                                                   11G  5.4G  4.8G  53% /
udev                                                     10M     0   10M   0% /dev
tmpfs                                                    50M  232K   50M   1% /run
/dev/disk/by-uuid/21f7510b-f6a9-470b-bde9-58b22866dbef   11G  5.4G  4.8G  53% /
tmpfs                                                   5.0M     0  5.0M   0% /run/lock
tmpfs                                                   336M     0  336M   0% /run/shm

[email protected]:~# du -hs /var/lib/unifi/db
2.3G    /var/lib/unifi/db

Тоесть очистка базы дала 700 MB. Не густо.