ns8-piler: php-fpm pool too small drops requests under load #8282

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1. stephdl

   added this to the NethServer 8.11 milestone on Oct 29, 2026
2. stephdl

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   Bug

   issue type on Oct 29, 2026
3. stephdl

   added this to NethServeron Oct 29, 2026
4. github-project-automation

   moved this to ToDo in NethServeron Oct 29, 2026
5. stephdl

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   on Oct 29, 2026
6. stephdl

   moved this from ToDo to In Progress in NethServeron Oct 29, 2026
7. stephdl

   added a commit that references this issue on Oct 30, 2026

   fix(piler-server): raise the php-fpm pool size (#146)

   ...

   5282d7e
8. stephdl commented on Oct 30, 2026

   

   stephdl

   on Oct 30, 2026

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   QA ns8-piler 1.3.3-dev.1

   Fix: the php-fpm pool is raised from 5 to 10 workers, so a burst of requests no longer drops piler (NethServer/ns8-piler#146).

   Setup

   Update an existing piler instance (here piler1) to the test image:

   api-cli run update-module --data '{"module_url":"ghcr.io/nethserver/piler:1.3.3-dev.1","instances":["piler1"],"force":true}'

   Test 1: the new pool settings are loaded

   runagent -m piler1 podman exec piler-app php-fpm8.5 -tt 2>&1 | grep -E 'max_children|request_terminate_timeout|request_slowlog_timeout'

   Expected:

   pm.max_children = 10
   request_slowlog_timeout = 10s
   request_terminate_timeout = 60s
   request_terminate_timeout_track_finished = no
   

   Test 2: 20 slow requests at once are all served

   This test fails on 1.3.2 (some requests are dropped) and passes on 1.3.3-dev.1.

   1. On the node, add a test page that takes 3 seconds:

      runagent -m piler1 podman exec -u 0 piler-app sh -c "printf '<?php sleep(3);' > /var/piler/www/qa-slow.php"

   2. From your PC, send 20 requests at once:

      seq 1 20 | xargs -P 20 -I{} curl -sk -o /dev/null -w '%{http_code}\n' --max-time 10 "https://<piler host>/qa-slow.php?{}" | sort | uniq -c

      Expected: 20 200. On 1.3.2 some lines show 000, those requests timed out.

   3. On the node, remove the test page:

      runagent -m piler1 podman exec -u 0 piler-app rm -f /var/piler/www/qa-slow.php

   Test 3: no regression

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9. stephdl

   moved this from In Progress to Testing in NethServeron Oct 30, 2026
10. stephdl

    added

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11. stephdl

    assigned

    lucagasparini

    and unassigned

    stephdl

    on Oct 30, 2026
12. lucagasparini commented on Oct 30, 2026

    

    lucagasparini

    on Oct 30, 2026

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    Test 1: VERIFIED
    Test 2: VERIFIED
    Test 3: VERIFIED
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15. nethbot

    moved this from Testing to Verified in NethServeron Oct 30, 2026
16. stephdl commented on Oct 30, 2026

    

    stephdl

    on Oct 30, 2026

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    released https://github.com/NethServer/ns8-piler/releases/tag/1.3.3
17. stephdl

    closed this as completedon Oct 30, 2026
18. github-project-automation

    moved this from Verified to Done in NethServeron Oct 30, 2026