Owners Manual

Troubleshooting Your Application | Troubleshooting
704 OMNM 6.5.2 User Guide
When you use the file backup (NetConfig) option, the internal FTP/TFTP server is provided for
testing, not production; do not use it. External FTP servers are essential for performance reasons,
and, if necessary, the network equipment using FTP to send/receive configuration files must have
FTP enabled.
NOTE:
If you have separate FTP and TFTP servers, they must read/write to the same directory.
If deploying firmware succeeds, but device doesn't reboot:
That might be because of "Console Logging" is enabled. Please disable console logging. The
messages from console logging interfere with the communication between OMNM and the device
(via CLI) and can disrupt supported functionality in OMNM.
Timeout
Timeout can occur when backing up/restoring large config files.
Workaround: Change timeout values in the telnet/SSH authentication object. Right-click > Edit
the device and change those values in the Authentication tab. Typically this means doubling the
timeout, and increasing retries to 2 - 3 times.
NOTE:
Secure FTP connections (scp/sftp) often require SSH services be enabled on the devices addressed.
Ensure your system’s server and sftp/scp file server can access the devices with SSH too.
Group File Management Failure
If group file management backup operations fail for some devices while individual backups to these
devices are successful, typically thread pool-related backup errors appear in logs during the related
time frame.
Solution: Your system may have insufficient threads available to handle the number of concurrent
tasks required by the group backup operation. Some threads could have already been in use for
other tasks when the group operation began.
To address this, increase the size of the thread pool to handle additional concurrent tasks with the
following steps:
1 Shutdown application.
2 Edit owareapps/installprops/lib/installed.properties
3 Add the following property...
ProvisionThreadPoolMBean.PoolSize=70
(Adjust as needed based on current setting and need.)
4 Save installed.properties .
5 Start application.
6 Execute the group backup operation.
By increasing the Pool Size, the application can perform additional concurrent tasks that fall within
the scope of this pool.