#metabrainz

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      • LordSputnik
        Leo_Verto: what about?

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      • LordSputnik
        Leo_Verto: ah yes, just saw that, will sort it out tomorrow

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      • Freso
        Anyone here know how to specify negative niceness via schedtool?

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      • Mineo
        listenbrainz seems to be returning a lot of 502s

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      • Freso
        alastairp: ^ (no ruaok awake yet it seems)

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      • alastairp
        I just restarted it. we’re still having some problems with it

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      • darwin
        what is "it" in this casE?

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      • darwin
        an app server?

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      • alastairp
        yes

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      • alastairp
        flask + uwsgi

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      • alastairp
        we’re having problems where some workers seem to get stuck after about a day on high cpu, and uwsgi stops sending requests to them

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      • darwin
        workers live that long?

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      • alastairp
        web workers. Yes, they’re supposed to be long running, and nginx passes requests to uwsgi, which is supposed to hand it off to a worker

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      • russss
        alastairp: can you tell uwsgi to restart them after serving n requests?

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      • darwin
        I'm pretty sure that's what we do at my work.

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      • darwin
        like, I would not expect them to run "about a day"

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      • darwin
        (but I am "just the DBA" hehe)

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      • alastairp
        russss: it has so many options, I'm sure it's a possibility

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      • alastairp
        though we've never had this problem on acousticbrainz (definitely less submissions though)

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      • russss
        might be worth doing that as a first possibility. It could be there's a resource leak somewhere

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      • russss
        but finding those is hard

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      • russss
        the other alternative is that occasionally something is looping for ever

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      • alastairp
        yeah, those are our thoughts too. and we also know that finding them is hard

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      • alastairp
        one thing I wanted to do was attach strace to a high cpu processes

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      • alastairp
        just to see what it's doing

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      • russss
        there's a high probability it'll show either nothing, a load of select()s on the epoll socket, or a load of futex_wait. None of which is helpful :)

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      • russss
        but worth a try. (also ltrace)

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      • alastairp
        ah, never seen ltrace

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      • alastairp
        oh right, strace is system calls, ltrace is library calls. neat

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      • russss
        still waiting on a good dtrace-alike for Linux which works out of the box. Apparently Systemtap may have userspace tracing support for python now, but I need to spend some time looking at it.

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      • Laverne
        sysdig might be interesting to look at as well

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      • russss
        sysdig is cool but it's basically just a new frontend to existing tools rather than a new datasource.

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      • Mineo
        were there any problems with the caa-indexer in the last month? I had to perform some edits on https://musicbrainz.org/release/0df9fe6e-d374-4e0… to make it return the front type in the json file correctly

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      • ruaok tries a different office for the day

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      • alastairp
        ruaok: :(

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      • alastairp
        http://tickets.musicbrainz.org/browse/AB-64?page=…

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      • alastairp
        I can't change the status of this from in progress to open again

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      • Gentlecat
        alastairp: done

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      • Gentlecat
        seems like only assigned user can do that

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      • alastairp
        silly

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      • Gentlecat
        yep

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      • alastairp
        I guess I'm not an admin or anything on AB

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      • alastairp
        Gentlecat: will you be around some time?

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      • Gentlecat
        yeah

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      • alastairp
        I wanted to talk about next steps for ab

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      • alastairp
        (and your outstanding bugs)

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      • alastairp
        just to see where we are

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      • Gentlecat
        right

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      • alastairp
        and we should try and come up with a project for you too

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      • alastairp
        I'm thinking of changing the file structure of the server again :(

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      • Gentlecat
        I think it's actually a good thing to do occasionally

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      • alastairp
        I want to have acousticbrainz related stuff in an acousticbrainz package

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      • alastairp
        e.g. http://tickets.musicbrainz.org/browse/AB-67

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      • alastairp
        we should be moving logging out of webserver if we're to use it in highlevel

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      • alastairp
        but I don't want to call it `logging`. it should be called `acousticbrainz.logging`

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      • Gentlecat
        it will also need some changes to work outside of flask apps

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      • alastairp
        shouldn't need much

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      • alastairp
        I just specify the handlers outside of webapp, and include them inside webapp

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      • Gentlecat
        yeah, probably

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      • alastairp
        then I can use the handlers in other packages

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