BUG: RTMP Streams disconnect because of heavy storage writes

[Vinayk93]

RTMP automatically destroys because of high storage writes.

Is RTMP using disk for any use? How can we minimize disk usage?
We generally use only use 1 stream with 1 client and sometime in between any 10 days It stops working automatically.

here is the config.

rtmp {
    server {
        listen          1935;
        chunk_size      4000;
        ping 30s;
        ping_timeout 15s;
        idle_streams off;
        buflen 20s;
        drop_idle_publisher 15s;

        access_log  /dev/stdout;

        application livestream {
            live on;
            interleave on;
            record off;
            sync 10ms; 
       }
}

writes approx 0.3 mb per minutes