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Cisco Transport Manager Release 6.0 User Guide
78-16845-01
Appendix J Troubleshooting
J.10.13 Miscellane ous Problems
J.10.13.3.9 Failed to Acquire a Session with a Switch
For MGX 8850 Release 4.0 or later, CTM waits in a predefined port to acquire the session, if it receives
the "499 Session limit reached" error. This wait time is 1 minute by default and is configurable. If CTM
does not get a response from the switch within this wait time, it times out and throws the following
exception and then again retries to open the session:
( 9583: 6) 08:37:29 ERR: %CwmFtpDaemonException-3-SESSION_TIMEOUT: Session [Id[28],
ClientSeq#[6521], Host[172.25.69.218], User[superuser], Priority[3]:get
/stat/1-04-Con-052920030730 /opt/svplus/spool/MGX98101-1-04-Con-052920030730-2] timeout in
3 minutes and needs to be retried.
It retries 5 times by default (this number is configurable). If all retries fails, cwmftpd throws the
following exception:
( 9583:172473) 08:37:58 ERR: %CwmFtpDaemon-3-SESSION_FAIL: Thread [Host [172.2
5.69.218] User[superuser] NoRequest] failed to acquire session after 5 retries. Session
wait time[5].
Related key index entries: switch, session, FTP
J.10.13.3.10 Failed to Acquire Session After All Retries
The cwmftpd command failed to acquire a session with a switch on all retries.
Step 1 Check whether all four sessions have been opened by opening a manual FTP session to the switch.
Defect Information—If manually opening the FTP session succeeds, but cwmftpd still throws a
SESSION_FAIL exception, then report the problem with cwmftpd.log, cwmftpd.request_log and logs of
the process for which files are not getting transferred by cwmftpd.
Possible alternative workaround—None.
Related key index entries: session_timeout, session_fail
J.10.13.3.11 General Log Information
The cwmftpd.request_log file will have one entry for each request. It will have information about
whether the request succeeded or failed and how much time it took. It has information in a short and
simple format and since there is not much data per request, the file has more data in terms of amount of
time.
Cwmftpd maintains information based on the IP address of the node. To track a request for a particular
node, grep for the IP address as the keyword in cwmftp.log and cwmftpd.request_log.
When ooemc sends FTP requests, it also sends the node ID along with the request as part of the
destination file. This node ID is used to retrieve the FTP user/password from the node_info table. This
can be used for user/password validation.
The following keywords are from the cwmftpd.log file.
•TRANSFER_STARTED—Specifies that cwmftpd started transferring the file.
•TRANSFER_COMPLETED—Specifies that the file has been transferred completely and also gives
information about local and remote file size.
•TRANSFER_RATE—Specifies the rate of transfer with the number of bytes transferred and the
time.