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ID Date Icondown Author Author Email Category OS ELOG Version Subject
  69816   Fri Jul 26 14:33:50 2024 Reply Carl Unsworthcarl.unsworth@stfc.ac.ukBug reportLinuxV3.1.5-23df00dRe: Old attachments erroneously appearing on new Elog entries.

Great, thank you again. I have now installed the latest and the problem appears to be gone.

Stefan Ritt wrote:

I updated the EL9 rpms, so please try again.

 

  69817   Wed Jul 31 14:21:21 2024 Reply Stefan RittI cstefan.ritt@psi.chBug reportAll3.1.5Re: HTTP headers should be parsed case insensitive

I changed elog to interprete the content-length header case in-sensitive and committed the change. Can you try again?

Stefan

André wrote:

I'm trying to run elog behind haproxy, but get the error "Invalid Content-Length in header" on posting.

As stated in the manual, haproxy rewrites all headers to lower case.

elogd parses the content-length header case sensitive which is against the HTTP RFC. This might also apply to other headers that get parsed.

For now I'm using the workaround from the manual:

global
  h1-case-adjust content-length Content-Length
  h1-case-adjust content-type Content-Type

backend elog
  option h1-case-adjust-bogus-server
  server elog 127.0.0.1:8080

But as the manual states, this should not be  used as a permanent solution.

 

  69818   Wed Jul 31 14:22:52 2024 Reply Stefan Rittstefan.ritt@psi.chBug reportLinux3.1.4-3Re: Invalid Content-Length in header when running behind a load balancer

I changed elog to interprete the content-length header case in-sensitive and committed the change. Can you try again?

Stefan

André wrote:

I have the same problem. I found a temporary solution: https://elog.psi.ch/elogs/Forum/69807

Tamas Gal wrote:

I put the ELOG service behind an Apache reverse proxy which is now sitting behind the HAProxy. It works like this, but it's just a workaround. I am pretty sure that ELOG has problems to communicate with HAProxy correctly and it seems that Apache is more forgiving. So that the chain HAProxy -> Apache -> ELOG and vice versa is working.

If anyone manages to figure out what's wrong, I am happy to get rid of the extra reverse proxy layer!

Tamas Gal wrote:

I am still struggling to get ELOG running behind a load balancer and hope to get some advice here. As already reported in https://elog.psi.ch/elogs/Forum/69542 I observed an infinite loop of redirects when prompted to log in and using a non-empty password file. Without a password, the service worked as expected. This was with version 3.1.3.

With the new version 3.1.4-3, I get another error: "Invalid Content-Length in header" when I click on "submit" of a new post. Viewing the logbooks works fine. The instance is currently live and running here: https://elog.test.km3net.de but I might change it anytime due to debugging etc.

This is a kind of difficult thing to debug (I spent the whole day and no progress). The only thing I've found was this post: https://techcommunity.microsoft.com/t5/iis-support-blog/invalid-content-length/ba-p/3038724 where it seems that some responses are not RFC conform and were rejected in the load-balancer.

The load balancer I use is HAProxy, the same as in my old setup where I got the infinite redirects, and I can't find any setting which would work. To my understanding, the most basic setup should work just fine. The SSL termination is on the load-balancer side so ELOG doesn't even have to know anything about it. The configuration is below. I am running a single instance, so there is not even replication with session keep-alive via cookies or anything fancy.

I also want to mention that I am runnin around 30 different services behind the load balancer and none of them are having any issues with the SSL termination or the load-balancing itself, that's why assume that something in ELOG is either non-conform or buggy.

Any thoughts? I'd really like to use the same infrastructure for the ELOG service as for every other service (automatic certificate renewal via letsencrypt, load-balancing, easy movement to other nodes, SSL termination etc.), to minimise the complexity of our Docker Swarm system.

backend be_elog.km3net.de
    mode http
    server-template km3net-elog- 1 km3net-elog_elog:8080 check resolvers docker init-addr libc,none

 

Btw. I am running ELOG with -v but I don't see any error whatsoever in the logs:

km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET /demo/ HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "ios_specific_templates_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_anonymous_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_group_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_group_trait"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_trait"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "rl_user_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Received unknown cookie "logged_out_marketing_header_id"
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 3437 bytes
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET / HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 120 bytes
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET /demo/ HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 3518 bytes
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET / HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 120 bytes
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | GET /demo/ HTTP/1.1
km3net-elog_elog.1.fm8i1eia9l9t@ecap-s021    | Returned 3518 bytes

 

 

 

  69820   Mon Aug 5 21:15:08 2024 Reply Truupepijuels@gmail.comQuestionOther3.1.5Re: Elog on FreeBSD

Welp, nevermind, I dug a little more and managed to compile it on 14.1 using cmake.

Truupe wrote:

Anyone using elog on FreeBSD nowadays?  I know it used to be in the ports tree about 10 years ago but seems to be abandoned.  Tried to compile from source on 14.1, but no luck there.

 

  69822   Thu Aug 8 09:07:45 2024 Reply Stefan Rittstefan.ritt@psi.chQuestionAll2Re: Can Elog make a table?

I'm not exactly sure what you want to do, but there are two options in elog:

1) Insert directly a table like this one:

Index Value
first 123
second 432

2) Use one ELOG entry as a row in a table. You can try this by clicking on "List" here in the Forum should you not already see the list display, then on "Summary" which give you a spreadsheet like display, where you can specify in the config file which columns of the ELOG entries you want to see. See also the demo here: https://elog.psi.ch/elogs/Linux+Demo/

Best,

Stefan

  Draft   Fri Sep 13 17:49:13 2024 Reply Dominicchiensh@gmail.comBug reportLinux3fb85fa6Re: Crash on attachment upload

I have the same problem with Ubuntu 24 on a Raspberry Pi system; it crashed whenever I uploade an attachment.  Thanks!

jaro mrazek wrote:

I am on ubuntu 24.04.1, I needed to git clone, make and make install,

HEAD is 3fb85fa6 - (HEAD -> master, origin/master, origin/HEAD) Fixed compiler warning (3 weeks ago)

It crashes on every attachment:  thank you. Jaro

 

root@vaio:~# systemctl status elogd
× elogd.service - The ELOG Server
     Loaded: loaded (/usr/lib/systemd/system/elogd.service; enabled; preset: ena>
     Active: failed (Result: core-dump) since Thu 2024-09-12 10:39:23 CEST; 3s a>
   Duration: 5.402s
       Docs: man:elogd(8)
             man:elog(8)
    Process: 724285 ExecStart=/usr/local/sbin/elogd -D -c /usr/local/elog/elogd.>
   Main PID: 724286 (code=dumped, signal=ABRT)
        CPU: 32ms

Sep 12 10:39:18 vaio systemd[1]: Starting elogd.service - The ELOG Server...
Sep 12 10:39:18 vaio elogd[724286]: elogd 3.1.5 built Sep 11 2024, 17:02:36
Sep 12 10:39:18 vaio elogd[724286]: revision 3fb85fa6
Sep 12 10:39:18 vaio elogd[724286]: File "/var/run/elogd.pid" exists, overwritin>
Sep 12 10:39:18 vaio systemd[1]: Started elogd.service - The ELOG Server.
Sep 12 10:39:18 vaio elogd[724286]: CKeditor detected
Sep 12 10:39:18 vaio elogd[724286]: ImageMagick detected
Sep 12 10:39:18 vaio elogd[724286]: Server listening on port 9000 ...
Sep 12 10:39:23 vaio systemd[1]: elogd.service: Main process exited, code=dumped>
Sep 12 10:39:23 vaio systemd[1]: elogd.service: Failed with result 'core-dump'.
root@vaio:~# systemctl restart elogd
 

 

  69832   Wed Sep 25 13:17:06 2024 Reply Stefan Rittstefan.ritt@psi.chQuestionWindows2.9.2Re: Looking for version update advice

If 3.1.4 runs safely on your laptop, there should be no problem to update the 2.9.2 one. But first do it on a copy of your logbooks from the at-sea. The get converted automatically into a newer format but that should be transparent.

On the other hand you don't really need a new system if your old installation works fine and you don't need any of hte new features.

The changelog ist here: https://elog.psi.ch/elog/download/ChangeLog

Stefan

Patrick Upson wrote:

I've inherited a position that includes deploying elog for an at-sea mission. Once at sea there's no gauntee of internet connection so I have to be sure things are going to work before hand. The machines I currently have (we have several backup machines) are running elog version 2.9.2 and I'm looking for a change log, or feature list to determine if it's safe to update the at-sea laptops to the latest version of elog.

On one hand, I could leave things as they are and I'm sure it will just work, on the other hand, I hate seeing things get out of date to the point that something just stops working some day and there's no ability to get support for old software.

I'm already running elog 3.1.4 on my personal machine I use for configuration development and testing and it seems to work well. The config file is pretty simple and seems to work with 2.9.2 on the at-sea machines, but I don't want to run into any suprises if there ends up being a compatibility issue at sea.

 

  69833   Wed Sep 25 13:19:29 2024 Reply Stefan Rittstefan.ritt@psi.chBug reportLinuxcommit 2eba8869Re: elog sprintf() buffer overflows on ubuntu-22
> I get the following compiler warnings about sprintf() buffer overflows. I suggest sprintf() should be replaced by std::string msprintf() from 
> midas. K.O.

I started to convert some sprintf() to snprintf(), but I still have 824 cases to go... Ideally, all should be converted to std::string. Will be some job for my retirement ;-)

Stefan
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