Στις 23/1/2018 18:32, ο Massimo Manghi έγραψε:
On 01/23/2018 04:27 PM, Georgios Petasis wrote:
Ok, I have changed MPM back to prefork, and I have changed my apache
configuration to:
<IfModule mpm_prefork_module>
LoadModule rivet_module modules/mod_rivet.so
RivetServerConf MpmBridge prefork
</IfModule>
<IfModule mpm_worker_module>
LoadModule rivet_module modules/mod_rivet.so
RivetServerConf MpmBridge worker
</IfModule>
<IfModule mpm_event_module>
Error "mod_rivet does not support the event mpm."
</IfModule>
And I think I am back to normal. And next time the OS changes the
MPM, I will get at least an error while loading apache...
Best regards,
George
sorry, I forgot that you have established that tdbc and threads don't
get very well together, so you can't safely test your application with
the worker MPM neither, can you?
In a previous message you said that what you observe is a frequent
call to the global_init_script (called by Rivet_VirtualHostsInterps).
This script is evaluated only when threads are started. This happens
only during the child initialization phase. With the prefork bridge
the ChildInit callback itself calls Rivet_VirtualHostsInterps. The
worker bridge calls it from each worker thread, only once in the
thread lifetime. So I think it's strange, if crashes don't occur, that
this code in called so frequently. Do you have clues in the error log?
Unfortunately the documentation is shy of providing implementation
details of the event bridge, but it's stated that as a MPM is based on
the worker MPM having as main difference the way connections are handled.
-- Massimo
I have tried to enable rivet under worker mpm, but I am getting an error:
[:error] [pid 5963:tid 140477525366528] (20014)Internal error (specific
information not available): mod_rivet: Error running GlobalInitScript
'set ::PaloServices 0; source -encoding utf-8
/var/www/rivet/server/server_init.tcl': invalid command name
"::rivet::apache_log_error"
while executing\n"::rivet::apache_log_error warning "Server Init
loaded under PID [pid]""
(file "/var/www/rivet/server/server_init.tcl" line 34)\n invoked
from within\n"source -encoding utf-8 /var/www/rivet/server/server_init.tcl"
So, something is wrong. Rivet did not find its worker mpm library? It is
in the same directory as worker:
root@fedser petasis]# ls /usr/lib64/rivet3.0/site-packages/mod_rivet/mpm/
rivet_lazy_mpm.so rivet_prefork_mpm.so rivet_worker_mpm.so
George
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