Experimental Physics and Industrial Control System
Title: Message
Steven,
I am not familiar with the gateway code and this is likely
not your problem but it may give you some idea's, I have been able to crash our
gateway when the EPICS_CA_MAX_ARRAY_BYTES environ var is not set and you try to pull a
waveform or analog array back through the gateway, I think the default is 16k
bytes, this needs to be set on the IOC and wherever your GUI is. Again I
don't recall any messages about pthread_create calving, but setting the max
bytes to a value large enough made the gateway happy.
When
you dial back the number of connections the problem goes away? if so, at what
number of connections does it die?
-Russ
We are having severe
problems with the EPICS gateway, and I'm hoping that someone can help us resolve
them.
The problem is that the
gateway is continually crashing whenever we open up a GUI display with requires
connection to multiple IOCs. These are Libera BPM boxes, and we have 98 of
them. We have a status display which shows the status of 33 of these at
once. As we scroll from one display to the other, the gateway invariably
crashes.
(This is a gateway
between our office network and our accelerator network, and is used
for monitoring the status of the machine from our desktops.)
The gateway log provides
the following information:
***************************************************************
Jun 26 16:01:02 PV
Gateway Version 2.0.0.0 [Jun 14 2006 15:10:22]
EPICS 3.14.6 PID=8840
ServerPID=8839
EPICS_CA_ADDR_LIST=BROADCAST-ACC
EPICS_CA_AUTO_ADDR_LIST=NO
EPICS_CA_SERVER_PORT=Not
specified
EPICS_CA_MAX_ARRAY_BYTES=Not
specified
EPICS_CAS_INTF_ADDR_LIST=CR01GW01-OFFICE
EPICS_CAS_SERVER_PORT=Not
specified
EPICS_CAS_IGNORE_ADDR_LIST=Not specified
Running as user ics on
host CR01GW01
Statistics PV prefix is CR01GW01
pthread_create error
Cannot allocate memory
Jun 26 16:36:12 !!!
Errlog message received (message is above)
fatal error:
epicsThreadCreate
Jun 26 16:36:12 !!!
Errlog message received (message is above)
***************************************************************
Has anyone else seen the
memory problems that we are experiencing? Is this an indication that we
are trying to connect to too many PVs at once? Will purchasing more memory
for the gateway perhaps alleviate the problem. It currently has 512MB but
we are planning to upgrade it to 1
GB.
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