Toolserver-l July 2012

toolserver-l@lists.wikimedia.org

21 participants
21 discussions

Bottle
by Alchimista 17 Jul '12

17 Jul '12

I'm trying to use Bottle on my web tools using flup has WSGI gateway, but without success, i've used the "Hello word" [1] to test it, but using Flup has server it didn't worked, i've also tryed to import WSGIServer from flup. server.fcgi and use it directly [2] [3], but also didn't worked. After some digging and experiments, and without progresses, i've asked some help on bottle's irc channel, where i was told that bottle script seemed to be just fine, it should be a flup or server related config. Any thoughts on how to set up bottle correctly? [1] http://bottlepy.org/docs/dev/tutorial.html#quickstart-hello-world [2] http://bottlepy.org/docs/dev/deployment.html#switching-the-server-backend [3] https://wiki.toolserver.org/view/Python_WSGI#Flup -- Alchimista http://pt.wikipedia.org/wiki/Utilizador:Alchimista

2 4

Linux-hosts are ready to use
by DaB. 16 Jul '12

16 Jul '12

Hello all, it is finally done, the linux-login-servers (yarrow and nightshade) are ready to use :-). You should be able to login from the outside to these boxes and to hop from any other toolserver-host too. I installed most of the packages at [1]; if any package is missing, please use JIRA now to request it. We are not able at the moment to package software for which there is no debian-package, because we miss a build-host (I willl speak with the WMDE about that). We run Debian stable on the linux-boxes, and both servers (like willow too) are managed by puppet to keep them in sync in manner of configuration and software. I installed some aliases (mostly gsometing->something) to make to switch from Solaris (back) to linux easier for you – if I miss a important one, please talk to me in IRC or open a jira-ticket; for less important ones you can define them yourself in .bashrc or .profile in your home. While you can (at least at the moment) use the cron-system on linux, you should not – use the submit-hosts and SGE! Speaking of SGE: To let your sge- jobs run on linux only, you have to add "-l arch=lx" as parameter. By adding "-l arch='*' " you let SGE decide the best server of both operating systems for your job. This will always result in a minimum waiting time and is the recommended usage if possible. Solaris will be the default for SGE until 30. September 2012, after that the default will be switched to any available os (I will send a reminder or 2 somewhen before). If there are any problems, please open a JIRA-report and the roots will try to resolve them. What will not happen: Installing of packages from testing or unstable, or installing of non-packaged-software (see above). The next step in my plan, is to convert our webservers to Debian (and using apache instead of ZWS). The step will start on Monday or Tuesday with the removal of wolfsbane from the web-cluster (so ortelius will be the only webserver for some time). I doubt that this step will take as long as the previous (because most work in puppet is already done), but you can never know. I would hereby like to thank Merlissimo; without him the conversion would have been much harder or impossible. Another thank to Nosy who freed me from Solaris-work. Sincerely, DaB. [1] https://wiki.toolserver.org/view/User:Dab/Debian-Packages -- Userpage: [[:w:de:User:DaB.]] — PGP: 2B255885

2 1

Mail-sending-problem on the linux-hosts
by DaB. 16 Jul '12

16 Jul '12

Hello all, there was a mail-sending-problem[1] on the linux-boxes. The problem is fixed now and the mails are on their ways. Just to let you know if you wonder where all these old mails are coming from (I doubt the issue was serious, otherwise someone had notice me before about the missing mails). Sincerely, DaB. [1] https://jira.toolserver.org/browse/MNT-1256 -- Userpage: [[:w:de:User:DaB.]] — PGP: 2B255885

1 0

Anoter SGE question
by Dr. Trigon 15 Jul '12

15 Jul '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello all! I have a bunch of cronie jobs calling qcronsub for several times with very similar settings (just the language of the wiki used changes). In total there are 5 jobs - regurarly (about ever 2nd day) one of those jobs does not get executed and it is always the same one. I do not get any error mail. Any idea? Thanks a lot and greetings DrTrigon -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk/a+QYACgkQAXWvBxzBrDD5VQCgox3+fPvOxE1CLry5pdA7AMx8 bDQAnjfAsdLAcykRA5j8lyicyVdk8xYC =UeJJ -----END PGP SIGNATURE-----

5 11

SGE qcronsub "auto-flush"?
by Dr. Trigon 15 Jul '12

15 Jul '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello everybody! I experience a behaviour with SGE that I cannot understand. Due to logging my scripts output I redirect stdout and stderr. When running the script from console (e.g. on willow) all write actions to stderr are passed as they are, but runned through qcronsub (SGE) results in all writes splitted up at newlines '\n' as if there was some kind of auto-flush in background? Changing the usage of param 'j' in SGE did not help. I am using python. Is there something in qcronsub that has in influence to this? Any idea? Thanks a lot and greetings! DrTrigon -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk/XmR4ACgkQAXWvBxzBrDCkJgCdFXFTxWbkHn4RR8s9/RBrouzj Jz0AmwT+Jo4bYwjm+0nybGu5o+Vq+iaK =YYoN -----END PGP SIGNATURE-----

3 2

s1 replag, some observations
by Russell Blau 12 Jul '12

12 Jul '12

As most of us already know, replag on enwiki has been going up and up since about 30 June. As it says on status.toolserver.org, "Hight replag because of inserting of many SHA1-hashes." (Note to DaB.: the first word should be spelled "High".) I asked DaB. on IRC how long this might go on, and he replied one to two weeks. However, I've since done some independent investigation that suggests that his estimate might be a little low. It turns out that there are three large blocks of consecutive entries in the revision database that need to be populated with SHA1 hashes. Apparently there are three processes running in parallel on the WMF servers that are filling in each of these blocks from the bottom, by numerical order of rev_id. Knowing this, we can estimate how many revisions still need to be populated at any given point; and, taking such estimates at various points in time, can estimate how long the process will take. (Needless to say, this is only an estimate since the rate at which database changes are processed on the toolserver side is variable; also, the blocks of rev_ids are not actually consecutive due to deletions, but we can assume for our purposes that the deleted revisions are distributed uniformly throughout the database.) It further turns out that it is only possible to compute this estimate for sql-s1-user (thyme), because the enwiki_p view on sql-s1-rr (rosemary) does not have the rev_sha1 field at all (!). It appears that the server on rosemary is receiving millions of database updates each day from WMF and throwing them in the bit bucket. Anyway, based on four observations spaced at 6 hour intervals, it appears that thyme is populating about 353,000 revisions per hour, or 8.5 million per day. A simple trendline analysis shows that, at this rate, completing the 230,000,000 remaining unpopulated revisions will take about 27 more days (estimated completion Aug 6 at 17:48 UTC). Anyone who relies on use of the enwiki_p database should expect a prolonged continuation of degraded service and steadily increasing replag. -- Russell Blau russblau(a)imapmail.org

4 6

SSH to the web server not working
by Bryan Tong Minh 12 Jul '12

12 Jul '12

Hi, I am trying to login to toolserver.org to debug some web scripts. However, it is refusing my SSH connection, after authentication, the server closes the connection. Is this a known problem, or is it no longer possible to login on the webserver? Bryan

3 3

Fairness on the toolserver
by DaB. 12 Jul '12

12 Jul '12

Hello all, the resources on the TS are free, but limited; so we all have to use the resources fair. Some limits (like memory-usage) are set and controlled by the system, but others are not and it is in the responsibility of every single user to make sure to not mis- or overuse resources. So it is for example NOT a good idea to run 200 processes in parallel to get more CPU-resources than you would normally get. And it is not a good idea to use a amount of memory which is just below the slayer-daemon-limit without any purpose. Sincerely, DaB. P.S: It is totally in the rules to disable a user-account because of resource- misusing. -- Userpage: [[:w:de:User:DaB.]] — PGP: 2B255885

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FYI: Mailinglist-changes
by DaB. 11 Jul '12

11 Jul '12

Hello, today I was appointed to admin of this mailing-list by the WMF, because it was orphaned (thanks to Thehelpfulone for organize that). I changed the ml-name as suggested, removed River (thanks for your time and work) as ml-admin and added Nosy as ml-admin. Just to let you know. Sincerely, DaB. -- Userpage: [[:w:de:User:DaB.]] — PGP: 2B255885

1 0

WMUK developer job opening
by Michael Peel 11 Jul '12

11 Jul '12

Hi all, WMUK is currently advertising for a full-time Developer position. The job description, and info on how to apply, is at: http://uk.wikimedia.org/wiki/Developer_job_description My apologies for this post being slightly off-topic, but I'm hoping that this position might be of interest to some subscribers. If you know of anyone that might be interested in this position that isn't on this list, please pass the link on to them! Thanks, Mike Peel Wikimedia UK

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Toolserver-l July 2012