Mysql Process crash often

Mysql Process crash often

Hi
 
we have Netflow Analyzer 9 professional plus on Linux 2.6.32-5-amd64 with 4096Mo Ram (virtual machine).
 
We have tunning with parameter " For a machine running with 3 GB of RAM or more, you can set these to
--key_buffer_size=820000000 --innodb_buffer_pool_size=948000000 --bulk_insert_buffer_size=48000000, # Maximum Java Heap Size (in MB) wrapper.java.maxmemory=1024 and -Xmx512m" to -Xmx1024m."
 
But the Mysql Process crash every day.
 
Can you help us to stabilize the installation?..
 
thx
 
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