airtime-liquids: out of memory

Hi all,

I'm having problem with an Airtime installation. After a while the system runs out of memory and kills the "airtime-liquids" process.

I'have another server running in the same webradio, it's a twin system but with less music loaded, and it does not have this problem. And on another system wich also has 2GB of RAM and about 1TB of music, no problem too.

Attached here there are the recent Airtime logs, the syslog portion of the killing episode and the little snippet of liquidsoap code that I replaced in ls_script.liq.

AIRTIME_STATUS_URL             = http://localhost:80/api/status/format/json/api_key/%%api_key%%
AIRTIME_SERVER_RESPONDING      = OK
KERNEL_VERSION                 = 3.2.0-33-generic
MACHINE_ARCHITECTURE           = x86_64
TOTAL_MEMORY_MBYTES            = 2018168
TOTAL_SWAP_MBYTES              = 1951728
AIRTIME_VERSION                = 2.2.0
OS                             = Ubuntu 12.04.1 LTS x86_64
CPU                            = AMD Turion(tm) II Neo N40L Dual-Core Processor
WEB_SERVER                     = Apache
PLAYOUT_ENGINE_PROCESS_ID      = 1098
PLAYOUT_ENGINE_RUNNING_SECONDS = 36335
PLAYOUT_ENGINE_MEM_PERC        = 0.2%
PLAYOUT_ENGINE_CPU_PERC        = 0.0%
LIQUIDSOAP_PROCESS_ID          = 13217
LIQUIDSOAP_RUNNING_SECONDS     = 1532
LIQUIDSOAP_MEM_PERC            = 1.4%
LIQUIDSOAP_CPU_PERC            = 10.9%
MEDIA_MONITOR_PROCESS_ID       = 18540
MEDIA_MONITOR_RUNNING_SECONDS  = 21977
MEDIA_MONITOR_MEM_PERC         = 0.3%
MEDIA_MONITOR_CPU_PERC         = 0.4%
RABBITMQ_PROCESS_ID            = 1304
RABBITMQ_RUNNING_SECONDS       = 36331
RABBITMQ_MEM_PERC              = 0.2%
RABBITMQ_CPU_PERC              = 0.0%
-- Your installation of Airtime looks OK!

Any thoughts?

crashatamente,
Francesco P.