SNMP request timeouts when NFS share on remote server is hanging.
root# snmpwalk -v2c -cpublic localhost
Timeout: No Response from localhost
A feature called skipNFSInHostResources was added to skip NFS mounts from filesystem lookup to prevent issues in case the remote resource is not available, from manpage of snmpd.conf:
controls whether NFS and NFS-like file systems should be omitted from the hrStorageTable (true or 1) or not (false or 0, which is the default).
If the Net-SNMP agent gets hung on NFS-mounted filesystems, you can try setting this to ‘1’.
The solution is to add the following entry “skipNFSInHostResources true” in /etc/snmp/snmpd.conf and restart snmpd service.
I have found no way to add an optional channel via the web interface of SUMA 2.1. I needed to add Debuginfo-Pool for Kdump analysis which use crash. Crash utility is used to analyze the core file captured by kdump. It can also be used to analyze the core files created by other dump utilities like netdump, diskdump, xendump. You need to ensure the “kernel-debuginfo” package is present and it is at the same level as the kernel. So, I had to use a command line of SUMA.
suma:~ # mgr-sync list channels
[I] SLES12-Pool for x86_64 SUSE Linux Enterprise Server 12 x86_64 [sles12-pool-x86_64]
[ ] SLE-Manager-Tools12-Debuginfo-Pool x86_64 SUSE Manager Tools [sle-manager-tools12-debuginfo-pool-x86_64]
[ ] SLE-Manager-Tools12-Debuginfo-Updates x86_64 SUSE Manager Tools [sle-manager-tools12-debuginfo-updates-x86_64]
[I] SLE-Manager-Tools12-Pool x86_64 SUSE Manager Tools [sle-manager-tools12-pool-x86_64]
[I] SLE-Manager-Tools12-Updates x86_64 SUSE Manager Tools [sle-manager-tools12-updates-x86_64]
suma:~ # mgr-sync add channel sle-manager-tools12-debuginfo-pool-x86_64
Adding 'sle-manager-tools12-debuginfo-pool-x86_64' channel
Scheduling reposync for 'sle-manager-tools12-debuginfo-pool-x86_64' channel
suma:~ # mgr-sync add channel sle-manager-tools12-debuginfo-updates-x86_64
Adding 'sle-manager-tools12-debuginfo-updates-x86_64' channel
Scheduling reposync for 'sle-manager-tools12-debuginfo-updates-x86_64' channel
suma:~ # mgr-sync refresh --refresh-channels
Refreshing Channels [DONE]
Refreshing Channel families [DONE]
Refreshing SUSE products [DONE]
Refreshing SUSE Product channels [DONE]
Refreshing Subscriptions [DONE]
Scheduling refresh of all the available channels
Scheduling reposync for 'sles11-sp3-pool-x86_64' channel
Scheduling reposync for 'sle11-sdk-sp3-pool-x86_64' channel
Scheduling reposync for 'sle11-sdk-sp3-updates-x86_64' channel