Running out of inodes disk space, free space left on device

Question

I am getting the message 'disk is full' despite having plenty of free space.

Inodes :-

$ df -i
Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/dev/xvda1           1638400   55434 1582966    4% /
tmpfs                 480574       1  480573    1% /dev/shm
/dev/xvdb2           3014656 3007131    7525  100% /export

Disk space :-

$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/xvda1             25G   16G  9.3G  63% /
tmpfs                 1.9G     0  1.9G   0% /dev/shm
/dev/xvdb2             46G   24G   20G  56% /export

Note: we have our magento application code which is under /dev/xvdb2 /export.please how to sort out the issue.