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xcp-ng / xenadmin

XCP-ng Center, the Windows management console for XCP-ng and XenServer. /!\ EOL-Notice /!\ Community-maintained only /!\
https://xcp-ng.org
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Easy way to view a hosts logfiles #145

Closed borzel closed 4 years ago

borzel commented 5 years ago
cocoon commented 5 years ago

What about a Log-Collector-Plugin?

That could be developed separated from XCP-NG Center, but maybe automatically installed with it. (Was thinking about that a few weeks ago, if an own plugin would be good for the zstd-export)

Then the Plugin could collect all the logs as an archive from the server(s) and maybe even do some simple parsing for ERROR or something like that and highlight them in red. Similar to CMTrace (https://www.pei.com/2018/05/review-log-files-cmtrace/) or simply use that tool, saves time to develop it.

I don't know if it would need an additional server-side plugin to collect the logs and create an archive, but I think so.

olivierlambert commented 5 years ago

I think there is already some stuff like that in XenCenter. Can you check the source and see what it calls? (in XAPI)

cocoon commented 5 years ago

Yes you're right, the bug tool seems to use this: https://github.com/xcp-ng/xenadmin/blob/master/XenModel/Actions/ZipStatusReportAction.cs

have to search some more ...

olivierlambert commented 5 years ago

I'm very unfamiliar with XC source code so if you can point the XAPI call behind it, this will be also helpful for XO! :+1:

cocoon commented 5 years ago

A bit short of time, but found this:

https://github.com/xcp-ng/xenadmin/blob/master/XenModel/XenAPI/HTTP_actions.cs#L157

coming from here:

https://github.com/xcp-ng/xenadmin/blob/master/XenModel/Actions/Host/SingleHostStatusAction.cs#L80

cocoon commented 5 years ago

Yes, the status report is the feature and it collects much more than only some logs (db, rrds ...). Additionally in the server properties is an option to set a remote log destination ... I have not used it, might be rsyslog.

System-Status can also be downloaded with a web browser (dialog for authentication will popup) like this:

http://YOURXCP-NG-Server/system-status/?entries=system-logs,xenserver-logs&output=tar

with everything selected in XCP-NG-Center it calls the following on the server:

running /usr/sbin/xen-bugtool --entries=device-model,fcoe,firstboot,network-status,process-list,client-logs,xapi,xenserver-databases,control-slice,host-crashdump-logs,disk-info,hardware-info,high-availability,xha-liveset,xen-info,message-switch,kernel-info,loopback-devices,multipath,xcp-rrdd-plugins,system-logs,xenopsd,vncterm,xenserver-config,xapi-debug,xenserver-install,xenserver-logs,network-config,yum,pam,boot-loader,conntest,VM-snapshot-schedule,tapdisk-logs,system-services,blobs,xapi-subprocess,xenserver-domains,CVSM --silent --yestoall --output=tar --outfd=be6dd2f3-cbd0-9332-21b5-23a4962ec796

01-status-report

02-status-report

03-log-dest

2019-02-16 update: was missing some status report "entries", now these are all that you get when selecting all checkboxes in XCP-NG-Center

borzel commented 4 years ago

As I have no spare time I close this :-(