Dear experts,
I am a new user of MIDAS. I try to follow the instruction from 
https://daq00.triumf.ca/MidasWiki/index.php/Quickstart_Linux
to install MIDAS in Fedora 39.

When I try to have a try in the section of "Clients run on Localhost only"
https://daq00.triumf.ca/MidasWiki/index.php/Quickstart_Linux#Clients_run_on_Localhost_only

I get the error of "undefined reference to" several variables in the mfe.cxx. For example the variable "max_event_size_frag". May I know any idea about this issue? Thank you.


Best,
Terry

I think this may only be an issue on the development branch.
Can you confirm that that is what you are using?

If so, I suggest you try the most recent stable tag 2022-05-c.

> Dear experts,
> I am a new user of MIDAS. I try to follow the instruction from 
> https://daq00.triumf.ca/MidasWiki/index.php/Quickstart_Linux
> to install MIDAS in Fedora 39.
> 
> When I try to have a try in the section of "Clients run on Localhost only"
> https://daq00.triumf.ca/MidasWiki/index.php/Quickstart_Linux#Clients_run_on_Localhost_only
> 
> I get the error of "undefined reference to" several variables in the mfe.cxx. For example the variable "max_event_size_frag". May I know any idea about this issue? Thank you.
> 
> 
> Best,
> Terry

Hello Nick,
I am using the most updated tag: midas-2022-05-c-1284-g4a77127b.

Here would be some of the examples of the error listed:
/usr/bin/ld: /packages/midas/lib/mfe.o: in function
/usr/bin/ld: /packages/midas/src/mfe.cxx:2537: undefined reference to `event_buffer_size'
...
Also several undefined reference. Any idea about it? Thank you.

Best,
Terry


> I think this may only be an issue on the development branch.
> Can you confirm that that is what you are using?
> 
> If so, I suggest you try the most recent stable tag 2022-05-c.
> 
> > Dear experts,
> > I am a new user of MIDAS. I try to follow the instruction from 
> > https://daq00.triumf.ca/MidasWiki/index.php/Quickstart_Linux
> > to install MIDAS in Fedora 39.
> > 
> > When I try to have a try in the section of "Clients run on Localhost only"
> > https://daq00.triumf.ca/MidasWiki/index.php/Quickstart_Linux#Clients_run_on_Localhost_only
> > 
> > I get the error of "undefined reference to" several variables in the mfe.cxx. For example the variable "max_event_size_frag". May I know any idea about this issue? Thank you.
> > 
> > 
> > Best,
> > Terry

Using the mouse to click and drag on a logarithmic y axis triggers a zooming behaviour as if the user zoomed in on a linear axis. 

How to reproduce:
Take a plot that ranges from 1e-20 to 100, for example. Click around the middle of the axis and drag the mouse up to about 3/4.

Expected result:
Limit the y axis to the approximate range 1e-10 to 1e-4

Actual result:
The y axis limits are around 50 and 75.


P.S. Is there a way to configure the history plot in a way that values of 0.00 are ignored rather than showing up as 1e-20?

I fixed that and committed the change to megon02, just reload your browser. I also set ymin and ymax of the Vacuum plot to meaningful 
values (not to zero!).

Stefan

("0" + leftDate.getUTCMonth() + 1).slice(-2)

("0" + (leftDate.getUTCMonth() + 1)).slice(-2)

[mhist,ERROR] [midas.cxx:5949:bm_validate_client_index,ERROR] My client index 10 in buffer 'SYSMSG' 
is invalid: client name '', pid 0 should be my pid 3773321
[mhist,ERROR] [midas.cxx:5952:bm_validate_client_index,ERROR] Maybe this client was removed by a 
timeout. See midas.log. Cannot continue, aborting...
Aborted (core dumped)

mhist -e "Xenon" -l

$ mhist -e "Xenon" -v "Det XeTmp 0-0" -t 100000 -s 200101 -p 250101 -f 
/data2/history/2022/mhf_1644698398_20220212_xenon.dat
ID 980316009, Aug 13 19:10:56, size 1851749486

• Bug: mhist -l crashes
  
• Bug: mhist -f does not work with "FILE" history format
  
• Feature request: mhist -e "Name" -l to only show variables of event "Name"
  
• Feature request: Set temporary history dir with a flag