Good day comunity. My project is a ZOPE3/BlueBream project, that runs mainly of ZODB using ZEO. I use wsgi to get multiple instances(4) of my project and connect to ZEO Server from them. The database is around 3 GB in unpacked state and around 800 MB in packed.
I use 4 processes with 7 threads each for serving data WSGIDaemonProcess doba.ua user=www group=www processes=4 threads=7 maximum-requests=2000000 I have little space on /tmp partition, so the cache of ZEO is only 40 MB pool-size 30 <zeoclient> server localhost:8200 storage 1 # ZEO client cache, in bytes cache-size 40MB # Uncomment to have a persistent disk cache #client zeo1 </zeoclient> The server has those specs: 8GB ram. 8 CPU 3.2 Ghz. Raid-2 in a mirror mode. The load of instances: 1 GB per instance - 8 GB total. Other apps consum up to 1.5 GB. So there is 2.5 GB in inactive mode all the time. The problem, that I have: The server has a Raid-2 in a mirror mode, so I only have 1 hard drive, which contain all my data. After a while of serving data the load gets highter and this hard drive just starts having 100% of disk usage. Then everything starts to fall. I have problems accessing the server and even restarting the project. I can't find any ther explanation, that ZEO does not handle the load well enough. Does someone see any way to ease the load?
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