Logging Over NFS
From OC Systems Wiki!
It is highly recommended that you log data to a locally-mounted disk. The performance over NFS defeats the performance advantages of using the APD file. Linux has known bugs with logging (using mem-mapped segments) over NFS.
If you only have network-mounted disks available, you can use the AP_NFS_TMP environment variable to request that Aprobe put the APD file in /tmp then Aprobe will copy the APD file to the ultimate destination.
Here is how you do that:
export AP_NFS_TMP=1 aprobe -u ... my app.exe