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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