hledger-ui --watch not working on GNU/Linux ? #836

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1. simonmichael

   added

   A-BUGSomething wrong, confusing or sub-standard in the software, docs, or user experience.Something wrong, confusing or sub-standard in the software, docs, or user experience.

   platform-linux

   uiThe hledger-ui tool.The hledger-ui tool.

   easy?

   help wanted

   good-first-issueIf you're a new contributor, this might be a good one for you.If you're a new contributor, this might be a good one for you.

   needs-testingTo unblock: needs more developer testing or general usageTo unblock: needs more developer testing or general usage

   needs-debuggingTo unblock: needs debugging/investigationTo unblock: needs debugging/investigation

   on Jul 11, 2018
2. simonmichael

   added

   Hacktoberfest

   on Oct 14, 2018
3. simonmichael

   removed

   Hacktoberfest

   on Nov 11, 2018
4. lestephane commented on Nov 6, 2019

   

   lestephane

   on Nov 6, 2019

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   It is working for me with hledger-ui 1.15, hledger-ui 1.15.2 on Ubuntu 16.04, and 244 input files, on a gocryptfs mount where filesystem watching (inotify) does not even work in Intellij. So I'm surprised.

   HOWEVER, hledger-ui quickly OOMs after steadily increasing its memory usage over a period of a few minutes. I have 8 gigs of RAM, and before it died the process was beyond 4G RSS.

   When I don't use --watch it hardly takes 11M RSS.
5. simonmichael commented on Nov 6, 2019

   

   simonmichael

   on Nov 6, 2019

   Last edited by simonmichael

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   Thanks for the report @lestephane ! I usually see CPU usage creeping up over time, but not this. It would be great to fix this, would you be able to help narrow it down ? Eg compare it on a normal filesystem, with fewer files, etc. (244 files is cool, how do you have that many ?)
6. simonmichael

   removed

   easy?

   good-first-issueIf you're a new contributor, this might be a good one for you.If you're a new contributor, this might be a good one for you.

   on Nov 6, 2019
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8. simonmichael

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   annoyance4-majorMajor usability/doc bug, or any regression or crash.Major usability/doc bug, or any regression or crash.

   affects3-fewAffects just a few users.Affects just a few users.

   affects4-manyAffects potentially a significant number of users.Affects potentially a significant number of users.

   and removed

   affects3-fewAffects just a few users.Affects just a few users.

   needs-testingTo unblock: needs more developer testing or general usageTo unblock: needs more developer testing or general usage

   on Apr 1, 2025
9. simonmichael commented on Apr 2, 2025

   

   simonmichael

   on Apr 2, 2025

   Last edited by simonmichael

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   Update:

   I can reproduce hledger-ui's --watch flag having no effect (ie, you must press g to see changes) in ubuntu (24.10, ARM, in a multipass vm running on my mac).

   I have added related links to the issue description.

   @lestephane, if you remember, how did you get that fsnotify debug output in 2020 ? It looked like

   fsnotify using polling ?: False
   fsnotify:   "Modified \"scrubbed-2019-05-ALL.journal\" 2020-01-05 10:10:36.251574089 UTC False"
   fsnotify:   "Modified \"scrubbed-2019-07-ALL.journal\" 2020-01-05 10:10:36.267817201 UTC False"
   
10. simonmichael commented on Apr 2, 2025

    

    simonmichael

    on Apr 2, 2025

    Last edited by simonmichael

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    Well, immediately after posting that, I got it working. It only failed to detect changes made from the host system (the mac). If changes are made within the vm (ubuntu), they are detected.

    So I don't currently have a reproducer for this issue (--watch not working on GNU/Linux).
    (And the original report, on reddit, has been lost.)

    --watch working but leaking CPU/RAM over time is a separate issue, discussed at #1825.
11. simonmichael

    changed the title [-]hledger-ui --watch not working on GNU/Linux[/-] [+]hledger-ui --watch not working on GNU/Linux ?[/+] on Apr 3, 2025
12. simonmichael commented on Apr 3, 2025

    

    simonmichael

    on Apr 3, 2025

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    if you remember, how did you get that fsnotify debug output in 2020 ?

    Doh, never mind, I see it now. hledger-ui --watch --debug, tail -f hledger-ui.log.
13. simonmichael

    added

    affects3-fewAffects just a few users.Affects just a few users.

    cant-reproduce

    and removed

    affects4-manyAffects potentially a significant number of users.Affects potentially a significant number of users.

    needs-debuggingTo unblock: needs debugging/investigationTo unblock: needs debugging/investigation

    on Apr 3, 2025
14. simonmichael commented on Apr 3, 2025

    

    simonmichael

    on Apr 3, 2025

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    I have added more problem scenarios and tips to the manual at https://hledger.org/dev/hledger-ui.html#--watch-problems .
    I can't reproduce this issue apart from those, so closing it.
    If you can, comment here.
15. simonmichael

    closed this as completedon Apr 3, 2025