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Category |
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ELOG Version |
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68687
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Fri Sep 15 15:16:42 2017 |
| Andreas Luedeke | andreas.luedeke@psi.ch | Question | Linux | 3.1.2 | Re: Elog System Requirements | Hi Alan,
we run our ELOG server (38 GB Logbook data in about 50 logbooks dating back up to 16 years) on a virtual Linux box.
The memory is important, since ELOG scans through all entries and creates an index at start-up. But we have only about 6% used out of 2GB: ELOG is not very demanding. If you have many and large pictures attached, then "convert" needs a bit of memory to work with.
Since "elogd" is a single task, you will not gain much from many CPUs. File IO is often a limiting factor: we've tried a while to run the logbook data on an AFS directory, and that did not turn out well. A local disk is best, an NFS disk works fine as well (in our case).
Cheers, Andreas
Alan Grant wrote: |
In response to an elog-hang issue I've been having on the Windows platform, I am building a new Unbuntu 14 TLS VM machine to host the identical configuration so that I can more easily debug when the hang happens again. I don't mind beefing up the hardware resources to either eliminiate that as a factor or resolve the problem. I'll have a higher end CPU to deal with 20 to 50 clients doing searches through the data (since the elog configuration currently does not provide a setting to limit how far back it can search with Quick Filters - pretty please add this basic setting!), but the main question I have now is what is a good amount of memory to add to the VM? I suspect even with 30 concurrent searches going CPU power will have more impact than memory in the case of elog. Can someone please confirm my suspicion and also recommend a suitable amount of memory I should install? My data volume is about 25 MB, all textual (no attachmemts), and the number of daily files goes back about 5 years. Any other tips for the build is very welcome.
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68695
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Sat Oct 28 09:12:32 2017 |
| Andreas Luedeke | andreas.luedeke@psi.ch | Question | Linux | V3.1.1-0767eb0 | Re: Attribute option "+x" not searcheable | Hi Stefano,
you could try to html encode the "+" and "-" sign in the option list
Options Half = +x, -x, both
Allow HTML = 1
But of course then you would need to change all existing entries.
It is just an idea; I did not try this out, it might not work anyway.
Cheers
Andreas
> Dear experts,
> I have an elog with an attribute with fixed values, like this:
>
> Attributes = Half
> Options Half = +x, -x, both
>
> It works fine, but I would like to find (or quick filter) all entries with Half=+x .
>
> If I go to the search form, I can select +x from the dropdown menu for Half, but the search returns no result, even if I do have a number of entries with Half=+x. Likewise if I try to do the same with Quick filter.
>
> I believe that this is due to the fact that the search uses regex, and "+" is reserved. I've tried to perform a search by entering manually and escaped "\+x", and it works as intended.
>
> https://.../?mode=summary&reverse=0&reverse=1&npp=20&Half=%5E%5C%2Bx%24
>
> However, since this attribute has a list of fixed values, it is not possible to entry manually something different "\+x" than what is defined in the config, that is "+x".
>
> Is there a solution for this problem?
>
> I would rather not change the attributes options (to, say, positive/negative), since that would mean changing manually a non negligible number of entries.
>
> thanks,
> Stefano |
68697
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Tue Oct 31 16:56:24 2017 |
| Andreas Luedeke | andreas.luedeke@psi.ch | Question | Linux | V3.1.1-0767eb0 | Re: Attribute option "+x" not searcheable | Hi Stefano,
I've tested it: it does not work.
Neither in edit nor in list view the HTML encoded characters show correctly.
Only in the "Quick filter" menu they show as they should!
But then selecting them in the quick filter will not find any entries :-(
So the short answer:
avoid characters with a special meaning for regular-expressions in attribute values, in particular if you want to use quick filters.
Cheers
Andreas
> Hi Stefano,
> you could try to html encode the "+" and "-" sign in the option list
> Options Half = +x, -x, both
> Allow HTML = 1
>
> But of course then you would need to change all existing entries.
>
> It is just an idea; I did not try this out, it might not work anyway.
>
> Cheers
> Andreas
>
> > Dear experts,
> > I have an elog with an attribute with fixed values, like this:
> >
> > Attributes = Half
> > Options Half = +x, -x, both
> >
> > It works fine, but I would like to find (or quick filter) all entries with Half=+x .
> >
> > If I go to the search form, I can select +x from the dropdown menu for Half, but the search returns no result, even if I do have a number of entries with Half=+x. Likewise if I try to do the same with Quick filter.
> >
> > I believe that this is due to the fact that the search uses regex, and "+" is reserved. I've tried to perform a search by entering manually and escaped "\+x", and it works as intended.
> >
> > https://.../?mode=summary&reverse=0&reverse=1&npp=20&Half=%5E%5C%2Bx%24
> >
> > However, since this attribute has a list of fixed values, it is not possible to entry manually something different "\+x" than what is defined in the config, that is "+x".
> >
> > Is there a solution for this problem?
> >
> > I would rather not change the attributes options (to, say, positive/negative), since that would mean changing manually a non negligible number of entries.
> >
> > thanks,
> > Stefano |
68700
|
Sat Nov 18 19:36:57 2017 |
| Andreas Luedeke | andreas.luedeke@psi.ch | Question | Linux | 3.1.2-bd7 | Re: hosts allow | Hi Susan,
according to the documentation you need to add "Hosts deny = All" in addition to the "Hosts allow" command.
Here is the relevant excerpt from the documentation (https://midas.psi.ch/elog/config.html#access).
Cheers
Andreas
Hosts allow = <list>
Hosts deny = <list>
These two settings can be used to restrict the access to the logbook to certain computers. It is similar to the UNIX hosts.allow and hosts.deny files. The list can consist of individual host names or IP numbers, subnet masks like 123.213. (note the trailing '.') or .mit.edu , or the word All . The following rules are applied:
- Access will be granted when a host matches a pattern in "hosts allow".
- Otherwise, access will be denied when a host matches a pattern in "hosts deny".
- Otherwise, access will be granted.
These rules are applied before any password is checked. To debug problems, start elogd with the "-v" flag, in which case the rule checking is printed on the screen.
Susan James wrote: |
I'm trying to wrap our elog instance to our company domain which is lbl.gov
I add this entry below (without quotes) to elogd.cfg and it's not working. the world can see our logbooks
" Hosts Allow = *.lbl.gov ".
can someone help?
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68707
|
Mon Nov 27 22:10:22 2017 |
| Andreas Luedeke | andreas.luedeke@psi.ch | Question | Windows | ELOG V3.1.3-fd7 | Re: Config: conditional coloring of items when 2 conditions are met (and|or) | I am not aware that it is forseen to define logical operators in combination with the Style command. How did you get the idea that this should work?
But you should be able to define multiple Style commands, acting on different format parameter.
Tim Schelfhout wrote: |
Hello,
Trying to color an entry log when 2 conditions are met. Tried
Style Result Hired and Administration NOK = background-color:red
where Result and Administration are Attributes. Anyone?
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68711
|
Fri Dec 8 19:47:04 2017 |
| Andreas Luedeke | andreas.luedeke@psi.ch | Question | Linux | 3.1.2-bd7 | Re: hosts allow | Hi Susan,
the documentation states that you should start elogd with the -v option from the command line and look at the output. Did you try this?
You might post the output here to get further help.
Cheers
Andreas
Susan James wrote: |
Hi All,
We're still having trouble with hosts.allow and hosts.deny.
We're trying to allow all of our domain lbl.gov to the access list
for our logbooks. But the combination below is not working.
==========================
[ below denies ALL ]
Hosts allow = .lbl.gov
Hosts deny = ALL
[ below denies ALL ]
Hosts deny = ALL
Hosts allow = .lbl.gov
========================
Can someone help?
Susan James wrote: |
thanks for your quick reply.
the configuration is still not working. See my entry below which denies everyone.
I've tried many different combinations of 'hosts allow and hosts deny'
we want to restrict all our logbooks to only domain lbl.gov
[ below denies ALL ]
Hosts allow = .lbl.gov
Hosts deny = ALL
[ below denies ALL ]
Hosts deny = ALL
Hosts allow = .lbl.gov
Can you help?
Andreas Luedeke wrote: |
Hi Susan,
according to the documentation you need to add "Hosts deny = All" in addition to the "Hosts allow" command.
Here is the relevant excerpt from the documentation (https://midas.psi.ch/elog/config.html#access).
Cheers
Andreas
Hosts allow = <list>
Hosts deny = <list>
These two settings can be used to restrict the access to the logbook to certain computers. It is similar to the UNIX hosts.allow and hosts.deny files. The list can consist of individual host names or IP numbers, subnet masks like 123.213. (note the trailing '.') or .mit.edu , or the word All . The following rules are applied:
- Access will be granted when a host matches a pattern in "hosts allow".
- Otherwise, access will be denied when a host matches a pattern in "hosts deny".
- Otherwise, access will be granted.
These rules are applied before any password is checked. To debug problems, start elogd with the "-v" flag, in which case the rule checking is printed on the screen.
Susan James wrote: |
I'm trying to wrap our elog instance to our company domain which is lbl.gov
I add this entry below (without quotes) to elogd.cfg and it's not working. the world can see our logbooks
" Hosts Allow = *.lbl.gov ".
can someone help?
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68720
|
Tue Jan 16 10:13:00 2018 |
| Andreas Luedeke | andreas.luedeke@psi.ch | Question | Linux | 3.1.2 | Re: Is there a python3 api to generate logbook entries from python? | Have a look here: https://github.com/paulscherrerinstitute/py_elog
I haven't tried it myself, but it should allow you to add, reply, edit, delete elog entries from python (>= 3.5) via the http elog interface. It's an anaconda package.
markus wrote: |
Dear elog community,
I wonder whether there is a python3 api or lib to generate and append entries (and attachments) to the logbook using scripts.
However, so far I did not find anything...
At the moment I am thinking about wrapping the "elog" command line tool.
Is there something usable already out there?
Thanks and regards
Markus
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68730
|
Thu Feb 1 10:14:55 2018 |
| Andreas Luedeke | andreas.luedeke@psi.ch | Question | Windows | 2.9.2->3.1.3 | Re: v3.1.3 does not work with logbooks from v2.9.2? | Hi Yves,
just my two pence, maybe they help you to figure out what's going on:
versions 2.* had all entries of one logbook in one directory. Version 3.* create a subdirectory for each year. This had been added for me: if you use AFS for logbook storage, then you have a limit on how many files you can put into a single directory.
So the first time you start elogd 3.* with data from an elogd 2.* it should move all your logbook entries into sub-directories for each year. If that would have happened, you would not be able to use these logbook directories with the 2.9.2 version.
Maybe your logbook client is not allowed to create sub-directories? Although I would guess that it then would just throw an error message and stop.
Cheers, Andreas
Yves wrote: |
I have just upgraded elog from 2.9.2 -> 3.1.3.
3.1.3 runs fine with new logbooks. However, when trying to run 3.1.3 with my logbooks created with 2.9.2 things stop working.
Here is the command I run for testing [attachment 1]: first of all it takes a very long time (~ 10 minutes) for it to index the logbooks. When finished indexing I try it out in a web browser - it takes infinite time to load: no error message appears but also no logbook. After an hour or so elogd crashes without an error message.
When running 2.9.2 on the same machine, all runs wel (attachment 2)
cfd file: (I only left in one logbook - they are all configured the same)
[global]
port = 18080
Logging level = 3
Max content length = 500000000
Date format = %A, %d %B %Y
[Logrun - Amptek]
Theme = default
Comment = Logrun Amptec
Reverse sort = 0
Quick filter = Date, Type
Any ideas on how to solve this?
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