Re: Large arrays over CA - attempt #2

["Ernest L. Williams Jr." <ernesto@ornl.gov>]

Hi Josh,

Please try the same test first with caget built against R3.14b2 and tell me
what you get. (i.e. is it only SDDS that gives the problem?)

I did not have any problems under R3.14b1 when playing with large arrays.



Thanks,
*******************************************
Ernest L. Williams Jr.
SNS Control Systems Group, ORNL
701 Scarboro Rd., MS 6473
Oak Ridge, TN 37830
Phone 865-241-9071
e-mail: ernesto@ornl.gov
Fax 865-574-4799
******************************************
----- Original Message -----
From: "S. Joshua Stein" <stein@aps.anl.gov>
To: <tech-talk@aps.anl.gov>
Sent: Wednesday, August 14, 2002 8:59 AM
Subject: Large arrays over CA - attempt #2


> Well, let me try this from a sane mail program - sorry for the repeat:
>
> I am attempting to process a waveform record of 32000 elements (type
USHORT) and
> pass that data over channel access (R3.14beta2). I have set the
environment
> variable EPICS_CA_MAX_ARRAY_BYTES to 512000 on both the (Solaris) IOC and
a
> client Xterm.
>
> When I attempt to run an SDDS tool (built against R3.14b2) to read that
> waveform, I get the following error message:
>
> CA.Client.Diagnostic..............................................
> Message: "The array or data structure specified will not fit in CA message
> buffer"
> Severity: "Warning" Context: "detected by: eos:5064 for: server unable to
load
> read (or
> subscription update) response into protocol buffer PV="SJS:chan1WaveWF"
max
> bytes=512024 -
> with request chan=SJS:chan1WaveWF op=0 data type=DBR_CTRL_LONG
count=32000"
>
> The environment variables on my ioc are as follows:
> epics> epicsPrtEnvParams
> EPICS_AR_PORT: 7002
> EPICS_CAS_BEACON_ADDR_LIST is undefined
> EPICS_CAS_INTF_ADDR_LIST is undefined
> EPICS_CAS_SERVER_PORT is undefined
> EPICS_CA_ADDR_LIST: 164.54.189.255
> EPICS_CA_AUTO_ADDR_LIST: YES
> EPICS_CA_BEACON_PERIOD: 15.0
> EPICS_CA_CONN_TMO: 30.0
> EPICS_CA_MAX_ARRAY_BYTES: 512000
> EPICS_CA_REPEATER_PORT: 5065
> EPICS_CA_SERVER_PORT: 5064
> EPICS_CMD_PROTO_PORT is undefined
> EPICS_IOC_LOG_FILE_COMMAND is undefined
> EPICS_IOC_LOG_FILE_LIMIT: 1000000
> EPICS_IOC_LOG_FILE_NAME is undefined
> EPICS_IOC_LOG_INET is undefined
> EPICS_IOC_LOG_PORT: 7004
> EPICS_TIMEZONE: CUS::360:033102:102802
> EPICS_TS_NTP_INET is undefined
>
>
> Any ideas?
>
>
> --
> +-----------------------------------------+
> | S. Joshua Stein                         |
> |                                         |
> | Electronics Engineer                    |
> | Accelerator Systems Division            |
> | Advanced Photon Source                  |
> | Argonne National Laboratory             |
> | www.aps.anl.gov/asd/people/stein/htdocs |
> +-----------------------------------------+
>