NetXMS 3.0 released

[victor]

@tomaskir said in NetXMS 3.0 released:

@victor said in NetXMS 3.0 released:

That's complicated issue. Current implementation is a bit messy with $n variables after matching. Consider the following code:

v = "error 43";
if (v ~= "(error|warning) ([0-9]+)")
	println("Step 1: $1=".$1." $2=".$2);
if (v ~= "(error .*|info ([0-9]+))")
	println("Step 2: $1=".$1." $2=".$2);

In NetXMS 2.2 $2 will be equal "43" on step 2, which is kind of misleading. It was because implementation in 2.2 silently skipping unmatched capture groups. Implementation in 3.0 resets all unused $n variables, which has side effect of clearing $1 if there were no capture groups at all. Looks like it was bad decision to use same names for capture groups and script arguments.

I want to gradually clean up inconsistencies in NXSL, and that could lead to break up of some things. I think that for now I can introduce server configuration variable (off by default) that will prevent resetting of unused capture group variables. Also I will introduce separated naming for script arguments and capture groups so scripts could be migrated over time to non-overlapping variable naming. Also for transformation scripts I think it is worth passing raw value not only as first argument to the script but also as global variable, like $rawValue.

Best regards,
Victor

The problem here is that there are likely thousands of scripts all around the Forums, Wiki and the internet that this change breaks.
Every single one would have to be updated - which is unrealistic.
For new users who find some regex-based scripts on the internet, they will not work, and they don't know why.

Existing implementations (scripts) will start working differently upon upgrade, without any knowledge of the system operators
This will be VERY difficult to track down, as this will not produce script errors, rather things will just work differently.
This means there can be a threshold script which will "pretend" to still work, but in reality will not work.
It puts burden on system operators to review every script they have upon upgrade to check if it still works properly

What I personally would propose:
There are far less scripts using regex capture groups than just regex.
So if a change is needed, only regex capture group should be changed, without affecting regex operations without capture groups (as is the case now).

What about capturing regex returning arrays with captures?

matchArrray = "test" ~= "t(e)(s)t";

println(matchArrray [0] . matchArrray [1]);
for (match : matchArrray) {
  print(match);
}

This would clean up the reuse of $1, $2, etc. without breaking ALL regex handling.
The change would only affect a smaller part of community, so less impact.

I've changed regexp expressions to return array with capture groups instead of boolean value. It still sets $n variables for compatibility but does not erase unused variables (so if there is no capture groups in regexp $1 will be left intact). As a side effect it is now possible do directly access capture group from regexp. For example the following code

text = "error 43";
errorCode = (text ~= "error ([0-9]+)")[1];
println(errorCode);

will print 43.

Best regards,
Victor

[vir_db]

@vir_db said in NetXMS 3.0 released:

Hi Alex,
do you mean this git? https://github.com/netxms/grafana

seems last commit was in june:

Commits · netxms/grafana

Grafana integration module for NetXMS. Contribute to netxms/grafana development by creating an account on GitHub.

GitHub (github.com)

I reported an issue on GitHub https://github.com/netxms/grafana/issues/3

[brettmilfos]

@victor said in NetXMS 3.0 released:

@brettmilfos said in NetXMS 3.0 released:

Just upgraded and have found an issue with SMS.

It created the migrated notification channel but did not work.

I tried to create a new notification channel, but there is nothing to select in the Driver name drop down.

Thanks, Brett.

How did you install server? On what platform?

Best regards,
Victor

Hi Victor,

Updated from 2.2.17 server 2k8r2 with existing generic SMS.

Cheers, Brett.

[victor]

Hi,

I've found bug in Windows installer. Try to rename directory C:\NetXMS\lib\ncd to C:\NetXMS\lib\ncdrv and restart NetXMS Core service.

Best regards,
Victor

[brettmilfos]

@victor said in NetXMS 3.0 released:

Hi,

I've found bug in Windows installer. Try to rename directory C:\NetXMS\lib\ncd to C:\NetXMS\lib\ncdrv and restart NetXMS Core service.

Best regards,
Victor

Hi,

That fixed the issue of not finding the DriverName.

Checking the logs the generic driver finds the device OK, but when I try to send a notification it says it cannot send the notification as there is no such channel name.

Cheers, Brett.

[yordi]

Hello,

I am using the debian repository, (http://packages.netxms.org jessie/main amd64 packages ) but it is not pickup version 3.0 .. is this not push jet ?
or is there a other repository ?

[victor]

Hi,

there are issues with libraries needed by 3.0 in Debian Jessie and so far we have no plans to provide Debian Jessie packages for version 3.0.

Best regards,
Victor

[zev]

@brettmilfos said in NetXMS 3.0 released:

Hi,

That fixed the issue of not finding the DriverName.

Checking the logs the generic driver finds the device OK, but when I try to send a notification it says it cannot send the notification as there is no such channel name.

Cheers, Brett.

Can you please provide screenshot of Cannel configuration for GenericDriver. It is under "Configuration"->"Notification Channels"

[vir_db]

@alk said in NetXMS 3.0 released:

Plugin in grafana repo will be updated shortly.
In a meantime you can update it directly from git.

@vir_db said in NetXMS 3.0 released:

Thanks Viktor,

just another issue: seems that the upgrade brok the grafana plugin. I can get alerts, but I cannot collect any graphs (for ex. CPU Usage)

there are any updates about grafana plugin?
I saw the last commit 3 day ago, but still not working cloned in my grafana / netxms deploy

[victor]

Did you clone it from our repository? Because latest version still waiting for approval to get into official Grafana plugin list.

Best regards,
Victor

[vir_db]

@victor said in NetXMS 3.0 released:

Did you clone it from our repository? Because latest version still waiting for approval to get into official Grafana plugin list.

Best regards,
Victor

I cloned from this git: https://github.com/netxms/grafana

[Egert143]

May i ask what is "User agents (desktop support application)" supposed to do ? Is it somthing similar to vnc ?

[Tursiops]

From what I've seen after some basic testing, it loads a tray icon on the computer in question and allows the user to execute commands as pre-defined on the NetXMS server.
It's not like VNC, i.e. it's not a remote control tool.

[hayarm]

@brettmilfos said in NetXMS 3.0 released:

@victor said in NetXMS 3.0 released:

Hi,

I've found bug in Windows installer. Try to rename directory C:\NetXMS\lib\ncd to C:\NetXMS\lib\ncdrv and restart NetXMS Core service.

Best regards,
Victor

Hi,

That fixed the issue of not finding the DriverName.

Checking the logs the generic driver finds the device OK, but when I try to send a notification it says it cannot send the notification as there is no such channel name.

Cheers, Brett.

---

[brettmilfos]

@zev said in NetXMS 3.0 released:

@brettmilfos said in NetXMS 3.0 released:

Hi,

That fixed the issue of not finding the DriverName.

Checking the logs the generic driver finds the device OK, but when I try to send a notification it says it cannot send the notification as there is no such channel name.

Cheers, Brett.

Can you please provide screenshot of Cannel configuration for GenericDriver. It is under "Configuration"->"Notification Channels"

Hi Victor,

Attached is the screenshot.

P.S. Issue is with using Tools > Send notification

Thanks, Brett.

---

[zev]

Found problem. It should be only with sending notification using "Send Notification" functionality form UI.