Cannot connect to RPC service at system
'ncadg_ip_udp:15.136.120.88[22222]'. Local port configuration has
been consulted - rpcd/llbd on remote system not queried.
(OpC20-186)
Communication errors always contain this form of message, when a local port configuration is used by an RPC client to connect the server. If this text is NOT part of the error message, a regular endpoint mapper lookup has been performed. The stated RPC binding contains the used protocol sequence (TCP or UDP) as well as the destination IP address and the port where the RPC server had been expected.
Cannot find port for RPC service 'opcctla' at
'15.136.120.88' in local configuration. (OpC20-187)
No port configuration was found for the specified service
(either in the server port specification file, opcinfo
or anywhere else) and OPC_COMM_LOOKUP_RPC_SRV is
false, that is NO endpoint mapper lookup is performed.
The port configuration file /xxxx contains an invalid
entry: '... some syntax error ...'. (OpC20-174)
The file /xxxx contains bad entries. The value of
OPC_COMM_LOOKUP_RPC_SRV is irrelevant and NO endpoint
mapper lookup has been performed.
If no local port configuration for a destination service is
found and OPC_COMM_LOOKUP_RPC_SRV is true (default),
the traditional behavior of looking up the destination RPC server
at the endpoint mapper applies. Then use tracing for further
troubleshooting.
NOTE:
It may now take much longer for RPC calls to time out if the called
RPC server is not listening - especially over UDP. The RPC client
must now attempt to find a server, whereas before, the endpoint
mapper was usually running and immediately returned the information
about the requested RPC server and whether it was registered or
not.
DEBUG areas
CONF and COMM are of interest since they
cover the evaluation of configurable variables and the DCE
communication. The DEBUG area FILE might
be interesting to track the detection of a modified server port
specification file.
To enable tracing for these areas, set the following variables
in the opcinfo file:
OPC_TRACE TRUE
OPC_TRACE_AREA ALL,DEBUG
OPC_DBG_AREA CONF,COMM
It is also recommended that you restrict the trace to certain
processes by using the OPC_TRC_PROCS and
OPC_DBG_PROCS variables and the process names, such
as:
OPC_TRC_PROCS opcmsga
OPC_DBG_PROCS opcmsga
NOTE:
opcrpccp show mapping does not show RPC servers for
which the OPC_COMM_REGISTER_RPC_SRV setting is
FALSE. In addition, this program will fail altogether
if the rpcd/dced is not running on the destination node.
RPC Servers log the following type of information, if endpoint
mapper registration is enabled:
... opcctla(...)[DEBUG]: COMM: Register manager
... opcctla(...)[DEBUG]: CONF: Returning value 'TRUE' for key
'OPC_COMM_REGISTER_RPC_SRV'
... opcctla(...)[DEBUG]: COMM: Checking hostname '' for
replacement
... opcctla(...)[INIT]: Regarding the setting of OPC_IP_ADDRESS
... opcctla(...)[DEBUG]: CONF: No value found for key
'OPC_IP_ADDRESS'
... opcctla(...)[DEBUG]: COMM: Using '15.139.88.156' as local
address
... opcctla(...)[DEBUG]: COMM: Returning '15.139.88.156'
... opcctla(...)[DEBUG]: COMM: Lookup Srv
... opcctla(...)[DEBUG]: COMM: Server lookup using rpcd
interface
... opcctla(...)[DEBUG]: COMM: Element lookup initialized
... opcctla(...)[DEBUG]: CONF: Returning value '13' for key
'OPC_MAX_PORT_RETRIES'
... opcctla(...)[DEBUG]: COMM: Got another element
... opcctla(...)[DEBUG]: COMM: Srv lookup using rpcd done. NumSrv =
0. rc = 0.
... opcctla(...)[DEBUG]: COMM: Register manager
... opcctla(...)[DEBUG]: COMM: rpc_ep_register for binding '0'
successful
... opcctla(...)[DEBUG]: COMM: rpc_ep_register for binding '1'
successful
[...]
... opcctla(...)[INT]: Entering RPC server loop ...
RPC Servers log the following type of information, if endpoint mapper registration is disabled:
... opcctla(...)[DEBUG]: COMM: Register manager
... opcctla(...)[DEBUG]: CONF: Returning value 'FALSE' for key
'OPC_COMM_REGISTER_RPC_SRV'
... opcctla(...)[DEBUG]: COMM: Register manager
... opcctla(...)[DEBUG]: COMM: Register manager
... opcctla(...)[DEBUG]: CONF: Returning value 'FALSE' for key
'OPC_COMM_REGISTER_RPC_SRV'
[...] ... opcctla(...)[DEBUG]: COMM: Entering RPC main loop
...
RPC clients on the managed node log the following type of information:
... opcmsga(...)[INIT]: Connecting message receiver on
260790428 ...
... opcmsga(...)[DEBUG]: COMM: Connecting with address:
15.139.88.156
... opcmsga(...)[DEBUG]: COMM: Getting server port for: opcmsgrd on
host: '15.139.88.156'
... opcmsga(...)[DEBUG]: CONF: Returning value '/tmp/ports.tge' for
key 'OPC_COMM_RPC_PORT_FILE'
... opcmsga(...)[DEBUG]: COMM: Examining external client port file
/tmp/ports.tge ...
... opcmsga(...)[DEBUG]: COMM: Re-loading external client port file
...
... opcmsga(...)[DEBUG]: COMM: Activating external client port
file. 0 entries
... opcmsga(...)[DEBUG]: COMM: Searching server port for: opcmsgrd
at '15.139.88.156'
... opcmsga(...)[DEBUG]: CONF: Returning value '51528' for key
'OPC_COMM_PORT_MSGR'
... opcmsga(...)[DEBUG]: COMM: Got opcmsgrd server port from
opc/nodeinfo[OPC_COMM_PORT_MSGR]: 51528
... opcmsga(...)[DEBUG]: COMM: Checking hostname '15.139.88.156'
for replacement
... opcmsga(...)[DEBUG]: COMM: Returning '15.139.88.156'
... opcmsga(...)[DEBUG]: COMM: Connection to non-local node. Using
long timeout
... opcmsga(...)[DEBUG]: COMM: Checking server. Mgr type: 0x0
... opcmsga(...)[DEBUG]: COMM: Binding:
ncadg_ip_udp:15.139.88.156[51528]
... opcmsga(...)[DEBUG]: CONF: Returning value '13' for key
'OPC_MAX_PORT_RETRIES'
... opcmsga(...)[DEBUG]: COMM: Checking whether server is listening
...
... opcmsga(...)[DEBUG]: COMM: Checking server: succeeded. st=0
rpc_rc=1
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