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ID Date Icon Author Author Email Category OS ELOG Version Subject
  66027   Thu Oct 30 08:39:34 2008 Agree Grant Jeffcotegrant@jeffcote.orgQuestionWindows2.7.5Re: Server derived time

Stefan Ritt wrote:

 

Grant Jeffcote wrote:

Hi Stefan,

Is it possible to derive the time in a 'date/time' attribute from the Elog server?
We would like all our entries in GMT/UTC time and unfortunately as the time is currently derived from the client machines there are often entry descrepancies if the regional settings are not set correctly.

The '$entry time' variable can be used but seems to put a 1970 date in the field so bears no relevancy to an 'Event' time?

I'm also having issues with conditional entries in the Find page. If a conditional statement is used to hide attributes or change displayed attributes in the entry page then the attribute that is used in the conditional statement is not permanently selectable in the 'Find' page. It is available as a choice but as soon as selected the conditional action removes it? Is it possible to make conditional options/actions in the 'Find' page optional?

Hope that makes a little sense?

Many thanks

 

There are several methods to get the server time:

 

Via presets of attributes

Attributes = Author, Event time, ...
Preset Event time = $utcdate

which gives you actually the UTC time.

 

Via the editor

The editor toolbar contains a little clock. If you click on it, you insert the current server time (but localized, not UTC).

 

Hope one of the two methods work for you.

The problem with the conditional attributes in the find page is I believe fixed in the current version.

Thanks Stefan, the preset UTC date works well. RTFM on my part perhaps.

I'm running version 2.7.5.2127 and am still having the issue with conditional attributes in the find area as mentioned above though.
Is it the latest SVN  **.2135 that addresses this?

Many thanks

  66026   Thu Oct 30 04:33:43 2008 Reply Stefan Rittstefan.ritt@psi.chQuestionLinux2.7.4-2111Re: Error Message During Uploads

 

Kevin O'Sullivan wrote:

We've been having toruble with uploads not working and I notice that every time someone uploads to our elog the same error message appears in /var/log/syslog:

Cannot restore original GID/UID.

How can I fix thsi error? Or, perhaps more importantly, could it cause elog to "lock up" (note, it doesn't crash)?

I'm runing elog on Ubuntu kernel version 2.6.24-server.

 

 Probably something is wrong with the account under which you run elog. Normally (at least if you install elog from the RPM) you have an account "elog" and group "elog" under which you run elogd. You compile and install elogd under root (so that it can bind to port 80 for example), and then you put 

usr = elog
grp = elog

into the configuration file. So when you start elogd, it binds to the server port, then falls down to user "elog" and gives up root privileges. If the elog account for example does not exist, you get the above error message. The only problem I see there is if elog stays as root, it can do more harmful things in case it misbehaves.

  66025   Thu Oct 30 04:28:05 2008 Reply Stefan Rittstefan.ritt@psi.chQuestionWindows2.7.5-2130Re: Standard login Screen - bottom text

 

Barend wrote:

Hi Stefan.

I have been "playing" around with this great tool and found an interesting "issue" ...

I use multiple logbooks and have both "Protect Selection page = 1" and "Expand Selection Page = 1".

When I open my elog, I get a Standard Login Screen with the Standard Bottom Text "ELOG V2.7.5-2130" which will link to your this website.

When I "Logout" and "Login" again from the Logbook page, I get another Login Screen with my own "Bottom text login" which will link to my own elog page.

How can I apply my own Bottom Text to the Standard Login Screen ?

Thanks & Regards, Barend
 

 

 By using the configuration option "Bottom Text Login = ..."

  66024   Thu Oct 30 04:17:09 2008 Reply Stefan Rittstefan.ritt@psi.chQuestionAll2.7.5-2130Re: (How) can I hide columns in List view?

 

T. Ribbrock wrote:

Originally, all information about our machines was stored in a spreadsheet with one sheet for the hardware of the machines and one for the software. By now, I've sucessfully moved the software part to an elog logbook and am now looking at transferring the hardware part as well.

As both lists are machine-name based, one of the options would be to merge both lists, as this would place all machine-related info into one logbook. The downside of this is that I get so many columns in list view that the result is quite unwieldy. Hence, I would like to hide some columns - ideally creating a "hardware view" and a "software view".

From the documentation, the only option I could find that seemed suitable was "List conditions". Unfortunately, I do not quite understand from the manual how this is supposed to work, so I'm quite possibly doing something wrong. I've tried this:

; General settings
List conditions = 1

; Attributes
Attributes = Type, Created, StatusA, StatusB, Archived

; Options & Tooltips
Options Type = Type1{10}, Type2{11}

; Conditionals
{10}List display = Edit, Type, Created, Status
{11}List display = Edit, Type, Created, StatusA, StatusB, Archived

but no matter how I set "Type", it does not seem to have any effect on the List display. One thing I don't understand for example is how does elog decide in List view which entry sets the condition? If all entries are set to the same value (in this example e.g. "Type1")? The first entry? Or am I missing something altogether?

Also, if there are alternative ways how I could accomplish my goal, I'd also be most grateful for suggestions.

Thanks in advance,

Thomas

 

 Indeed you got something wrong. The conditional attributes are meant for the input form, so you can turn some attributes on and off or choose different options for an attribute depending on the value of another attribute.

The only way I see how you can achieve what you want is to define two separate logbooks, but serve them from the same directory (via the "Data dir" option). Both logbooks should share the same attribute definition, but use different "List display" options.

  66023   Thu Oct 30 03:30:59 2008 Reply Stefan Rittstefan.ritt@psi.chQuestionWindows2.7.5Re: Server derived time

 

Grant Jeffcote wrote:

Hi Stefan,

Is it possible to derive the time in a 'date/time' attribute from the Elog server?
We would like all our entries in GMT/UTC time and unfortunately as the time is currently derived from the client machines there are often entry descrepancies if the regional settings are not set correctly.

The '$entry time' variable can be used but seems to put a 1970 date in the field so bears no relevancy to an 'Event' time?

I'm also having issues with conditional entries in the Find page. If a conditional statement is used to hide attributes or change displayed attributes in the entry page then the attribute that is used in the conditional statement is not permanently selectable in the 'Find' page. It is available as a choice but as soon as selected the conditional action removes it? Is it possible to make conditional options/actions in the 'Find' page optional?

Hope that makes a little sense?

Many thanks

 

There are several methods to get the server time:

 

Via presets of attributes

Attributes = Author, Event time, ...
Preset Event time = $utcdate

which gives you actually the UTC time.

 

Via the editor

The editor toolbar contains a little clock. If you click on it, you insert the current server time (but localized, not UTC).

 

Hope one of the two methods work for you.

The problem with the conditional attributes in the find page is I believe fixed in the current version.

  66022   Thu Oct 30 03:10:00 2008 Reply Stefan Rittstefan.ritt@psi.chBug reportLinux2.7.5-2130Re: elogd crashes when creating new logbook using existing logbook as template
> elogd is crashing with a segv when I try to create a new logbook by clicking the "Create new logbook" button
> with an existing logbook selected in the dropdown list as a template. I've attached my config file for
> reference. As a specific example, I'm logged in as the admin user, viewing logbook "1248", which has no entries,
> and I click "Config" -> "Change config file" -> "Create new logbook", Select "1248" from dropdown list, enter
> "1250" for the new logbook name, and click "Create new logbook".
> 
> The server crashes, and my web browser has the following as the (incorrect) URL it's trying to load:
> (Incorrect because the "/ATLAS" shouldn't be there.)
> 
> https://localhost:8080/ATLAS/1250/?cmd=Config
> 
> Nevertheless, the config file and logbook directory are properly modified for the new logbook, and on restarting
> the server, everything is fine.
> 
> Oh, just noticed that if I manually enter the URL:
> 
> https://localhost:8080/ATLAS/1250/
> 
> or actually, any text in place of the "1250", it also crashes the elogd process. So, perhaps there are two bugs?
> 
> (1) Incorrect URL being given to the web client after logbook creation
> (2) Requesting any incorrect URL of this form crashes elogd

This problems have been fixed in SVN revision 2135.
  66021   Wed Oct 29 07:07:47 2008 Reply Stefan Rittstefan.ritt@psi.chBug reportLinux2.7.5Re: Elogd crashes

 

soren poulsen wrote:

Dear Stefan,

Thanks for your reply.

I started running elog in February and it never failed. Then it started failing regularly towards the end of September. There were no system changes until then, except the daily automatic Yum updates (SLC4). Then I upgraded to the latest version (tar ball of 2.7.5). Then yesterday it crashed again. I saw that it crashed around the time when a user was doing something - inputting new data. I can monitor when it crashes and correlate it with user activity. But it is not easy to reproduce since I don't know exactly what the user is typing.

It would be necessary to record the user input forms and then replay them against a known server state. But that is not so easy.

I will think about doing something else - maybe running inside a debugger as you suggest.

 Just run it inside gdb. When it crashes, you will see a segment violation and you will end up at the debugger prompt. Then do a "bt" to see the stack dump. From that I can guess where the problem happens.

 

  66020   Wed Oct 29 05:53:39 2008 Reply Stefan Rittstefan.ritt@psi.chBug reportLinux2.7.5Re: Installation problems
> 1) "make" fails if libssl-dev package is not installed. Documentation does not mention SSL library requirements.

I added a note to the documentation, thank you.

> 2) /etc/init.d/elogd: line 10: /etc/rc.d/init.d/functions: No such file or directory (I fixed this by commenting
> out that line).
> 
> 3) Starting elogd: /etc/init.d/elogd: line 34: echo_success: command not found (Fixed by search/replace "echo_"
> to "echo ").

The elogd (or elogd.init in the distribution) is written for RedHat based systems where echo_success gives the 
typical output with a green [OK] at the end of the line. For Debian, there is (was) in principle a Debian package 
which has it's own startup script. Since the package maintainer is not active any more (I guess), the Debian 
updates are heavily old. Once elog gets managed inside Debian again, that should get better again, but until then 
one has to follow 2) and 3) from above. If I would remove it, the Scientific Linux users would complain. 
ELOG V3.1.5-3fb85fa6