Hi,
I have a remote DB2 database on AIX and I am accessing ti using a
windows client .i was using control center on windows to add the remote
system under it and I gave all the node names and pressed discover and
it gives me the following error:
*************** *************** *************** *************** *************** *************** *************** *****
SQL30081N A communication error has been detected. Communication
protocol being used: "TCP/IP". Communication API being used:
"SOCKETS". Location where the error was detected: "172.21.2.1 55".
Communication function detecting the error: "recv". Protocol specific
error code(s): "*", "*", "0". SQLSTATE=08001
Explanation:
An error has been detected by the communication subsystem.
If the connection has already been established, possible causes
include the following:
o A communication subsystem error at the client node or server
node has caused the connection to go down.
o If a SOCKS server is being used, a communications subsystem
error on the SOCKS server has caused the connection to go
down.
o A network error has caused the connection to go down.
o The database agent at the server was forced off by the system
administrator.
o The database agent at the server was terminated due to an
abnormal termination of a key database manager process.
If you are trying to establish a new connection, possible causes
include the following:
o The remote database server has not been cataloged correctly
at the client.
o The database manager configuration file at the server has not
been configured with the proper communication parameters.
o The communication subsystem at the client node or server node
has not been configured correctly, or has not been started
successfully.
o The communication subsystem at the SOCKS server, if one is
being used, has not been configured correctly, or has not
been started successfully.
o The DB2COMM environment variable at the server doesn't
specify the communication protocol used by the client.
o The database manager at the server has not been started, or
has not been started successfully. One or more of the
communication protocols specified by DB2COMM may not have
been successfully started.
Refer to the token values for details. Depending on the
protocol being used and the communication function invoked, some
tokens may not be applicable. The following is the explanation
of the token values:
<protocolThe actual communication protocol being used. Valid
token values are:
o TCP/IP
o APPC
o NETBIOS
o IPX/SPX
<interfaceThe application programming interface used to invoke
the above communication protocol services. Valid token values
are:
o SOCKETS
o SOCKS
o CPI-C
o DLR or DD
o TLI or Connection/Bindery
o SOAP
o MQI-CLIENT
<locationThis is a protocol specific ID which uniquely
identifies the node that detected the error. If the protocol
being used is:
o TCP/IP
The format of the ID is the Internet address in dot
notation.
o APPC
The format of the ID is the fully qualified LU name
(networkID.LUna me).
o NETBIOS
The format of the ID is the Workstation name (nname).
o IPX/SPX
The format of the ID is the network address and node address
in hexadecimal notation (network.node).
o MQ
The format of the ID is the MQ queue name.
o SOAP
The format of the ID is the Internet address in dot
notation.
If the location information is not available at the time that
the error occurred, this token is not filled in.
<functionThe name of the communication subsystem function that
returned the error code(s).
<rc1>, <rc2>, <rc3The list of the available error codes and
subcodes that are specific to each protocol being used. Tokens
that are not applicable contain "*".
If the protocol being used is:
o TCP/IP
- If <rc1is present and contains the global errno value from
the TCP/IP sockets function call. When using Windows Sockets,
if present, <rc1contains the error from the TCP/IP
sockets function call returned by WSAGetLastError ().
- If <rc2is present and contains the global h_errno value
from the TCP/IP name resolution function call. When using
Windows Sockets, if present, <rc2contains the error
from the TCP/IP database function call returned by
WSAGetLastError ().
- If <rc3is present and contains "0", it means that the
TCP/IP connection has been closed. This could be caused by one
of the following:
- The database agent at the server was forced off by the
system
administrator.
- A database agent could not be started at the server because
the maxagents database manager configuration
parameter has been exceeded. Check the administration
notification log to see if an error message has been
logged.
- The connection may have been closed by the remote server at
the TCP/IP level.
- The database agent at the server was terminated due to an
abnormal termination of a key database manager
process.
Note: When using Windows Sockets, if the <functionis
WSAStartup, and <rc1is 0, then <rc2contains the
Windows Sockets Specification version level requested by
DB2, and <rc3 contains the Windows Sockets
Specification version level supported by the Windows
Sockets DLL.
o APPC
<rc1contains the return code from the CPI-C function. If
present, <rc2contains the global errno value from the
CPI-C function call. <rc3is not applicable.
o NETBIOS
<rc1contains the return code from the call to NetBIOS.
<rc2and <rc3are not applicable.
o IPX/SPX
<rc1contains the global t_errno value from the call to
TLI Services, or the return code from the call to NetWare
Connection or Bindery Services. If the <rc1t_errno is
TLOOK, <rc2contains the TLI event that has occurred. If
the <rc2event is T_DISCONNECT, <rc3contains the
disconnect reason code. On AIX, if the <rc1t_errno is
TSYSERR, <rc3contains the system errno (defined in
sys/errno.h). If <rc1contains the error return code from a
call to AIX NetWare Connection or Bindery Services, <rc2>
contains the error generator.
o MQ
<rc1>contains the function completion code, 1 for a warning
and 2 for an error. <rc2contains the MQ-specific error
code. <rc3is not used for MQ.
o SOAP
<rc1contains the return code from the SOAP communication
function. The <rc2depends upon the value of <rc3>.
<rc2is either:
- The TCP/IP sockect error errorno value in UNIX,
WSAGetLastError for Windows operating systems.
- A Secure Socke Layer (SSL) return code from the Global
Security Kit (GSK).
The <rc3value "0" indicates that this is a high-level
SOAP error (not a socket or GSKit error). the <rc3value
"1" indicates that this was a socket error. the
<rc3value "2" indicates that this was a GSKit
error.
See the Communications Errors appendix of the Message Reference
for more information on specific communication error codes.
User Response:
If the connection has already been established, check if:
1. The database agent at the server has been forced off.
2. The database manager at the server has abnormally
terminated.
3. A communication subsystem or network error has occurred. See
the Message Reference for more information on specific
communication error codes.
If you are trying to establish a new connection, check if:
1. The remote database server is cataloged properly on the
client node.
2. The database manager configuration file at the server is
configured with the proper communication related parameters.
If the database manager configuration parameters have been
updated at the server, ensure that you stop and then re-start
the database manager, for the changes to take effect.
3. The communication subsystems on both client and server nodes
are configured and started up properly.
4. The DB2COMM environment variable at the server specifies the
communication protocol used by the client.
5. The database manager at the server is successfully started.
Start database manager processing at the server should have
returned SQL1063, and not SQL5043. If SQL5043 is returned,
check the administration notification log for more
information.
6. A communication subsystem or network error has occurred.
If the problem persists, consult with your network administrator
and/or communication expert to determine the cause of the problem
using the set of tokens provided.
sqlcode : -30081
sqlstate : 08001
*************** *************** *************** *************** *************** *************** *************** *
The FEDERATED parameter at server is set to YES and DB2COMM is set to
tcp/ip
Appreciate your help, thanks
