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<== Date ==> <== Thread ==>
Subject: Multiple NDPluginPva issues
From: Alexander Söderqvist <[email protected]>
To: [email protected]
Date: Tue, 8 Nov 2016 16:38:44 +0100
Hi all,

I am at ESS running an IOC with 2 pva plugins both connected to the simDetector:

# Create a simDetector driver
# simDetectorConfig(const char *portName, int maxSizeX, int maxSizeY, int dataType,
#                   int maxBuffers, int maxMemory, int priority, int stackSize)
simDetectorConfig("DMSCSIMDET", 500, 500, 1, 0, 0)
dbLoadRecords("simDetector.template", "P=DMSC:, R=CAM-, PORT=DMSCSIMDET, ADDR=0, TIMEOUT=1")
#create pva plugin
NDPvaConfigure(DMSCPVA, 20, 0, "DMSCSIMDET", 0, "DMSC:IMAGE", 0)
VERSION : pvAccess Server v4.1.2
PROVIDER_NAMES : local
BEACON_ADDR_LIST :
AUTO_BEACON_ADDR_LIST : 1
BEACON_PERIOD : 15
BROADCAST_PORT : 5076
SERVER_PORT : 5075
RCV_BUFFER_SIZE : 16384
IGNORE_ADDR_LIST:
STATE : INITIALIZED
dbLoadRecords("NDPva.template", "P=DMSC:, R=PVA-, PORT=DMSCPVA, ADDR=0, TIMEOUT=1, NDARRAY_PORT=DMSCSIMDET")
#create pva plugin
NDPvaConfigure(DMSCPVA2, 20, 0, "DMSCSIMDET", 0, "DMSC:IMAGE2", 0)
2016-11-08T16:33:54.789 Using dynamically assigned TCP port 52363.
VERSION : pvAccess Server v4.1.2
PROVIDER_NAMES : local
BEACON_ADDR_LIST :
AUTO_BEACON_ADDR_LIST : 1
BEACON_PERIOD : 15
BROADCAST_PORT : 5076
SERVER_PORT : 52363
RCV_BUFFER_SIZE : 16384
IGNORE_ADDR_LIST:
STATE : INITIALIZED
dbLoadRecords("NDPva.template", "P=DMSC:, R=PVA2-, PORT=DMSCPVA2, ADDR=0, TIMEOUT=1, NDARRAY_PORT=DMSCSIMDET")

As you can see it start 2 pvAccess servers.

Monitoring one array sees multiple instance of the pv:
pvget -m DMSC:IMAGE2
[ChannelRequesterImpl] message(More than one channel with name 'DMSC:IMAGE2' detected, connected to: 194.47.240.7:52834, ignored: 194.47.240.7:5075, warning)
DMSC:IMAGE2
structure
    union value
        (none)

Listing the servers shows the 2 pvAccess servers (Which yo):
pvlist
GUID 0x7EE8215800000000799BA728, version 1: tcp@[x.x.x.x:5075]
GUID 0x7EE82158000000008AD62829, version 1: tcp@[x.x.x.x:52834]

Listing pvs on each server shows that both are publishing the same PVs.
pvlist 0x7EE8215800000000799BA728
DMSC:IMAGE
DMSC:IMAGE2

pvlist 0x7EE82158000000008AD62829
DMSC:IMAGE
DMSC:IMAGE2

Has anyone tried running 2 NDPluginPvas in the same IOC before? Are you supposed to start multiple pvAccess servers in the same IOC?

Note that we are using our own build system, and it might be an issue there.

Regards,
Alexander Söderqvist
Replies:
Re: Multiple NDPluginPva issues Pearson, Matthew R.
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