Commit 332e00c2 authored by jan.koester's avatar jan.koester
Browse files

deb

parent 6c6ce6f9

debian/changelog

+8 −0
Original line number Diff line number Diff line 
mediadb (20260424+79) unstable; urgency=medium



  * Reduce MAX_CONCURRENT_PREVIEWS 6→2 in admin.html and gallery.html to

    avoid H2 stream serialisation timeouts on multiplexed connections.

  * Retry on network errors (TypeError), not only AbortError.



 -- Jan Koester <jan.koester@tuxist.de>  Thu, 24 Apr 2026 00:00:00 +0200



mediadb (20260424+78) unstable; urgency=medium



  * Fix: guard PrefetchBuffer future .wait() calls with .valid() check.

html/admin.html

+12 −11
Original line number Diff line number Diff line
@@ -183,7 +183,10 @@ function fmtSize(b) { 
// ---- Preview loader with throttling ----

const previewQueue = [];

let previewActive = 0;

const MAX_CONCURRENT_PREVIEWS = 6;

// Keep concurrency low: HTTP/2 multiplexes all requests on one TCP

// connection and the server dispatches streams serially.  With high

// concurrency the last streams exceed the client timeout.

const MAX_CONCURRENT_PREVIEWS = 2;

const PREVIEW_TIMEOUT_MS = 45000;



function drainPreviewQueue() {
@@ -209,16 +212,14 @@ function drainPreviewQueue() { 
        job.img.title = 'Preview failed (HTTP ' + r.status + ')';

      }

    }).catch(err => {

      if (err.name === 'AbortError') {

        // Timeout or manual abort — re-queue with delay

      // Retry on timeout (AbortError) and network errors (TypeError)

      job.retries = (job.retries || 0) + 1;

      if (job.retries < 3) {

        setTimeout(() => { previewQueue.push(job); drainPreviewQueue(); }, 2000);

      } else {

        job.img.alt = '\u26a0';

        job.img.style.opacity = '.5';

          job.img.title = 'Preview timeout';

        }

        job.img.title = err.name === 'AbortError' ? 'Preview timeout' : 'Network error';

      }

    }).finally(() => { clearTimeout(timer); previewActive--; drainPreviewQueue(); });

  }

html/gallery.html

+4 −6
Original line number Diff line number Diff line
@@ -53,7 +53,7 @@ const API = ''; 
// ---- Preview fetch throttling ----

const galQueue = [];

let galActive = 0;

const GAL_MAX_CONCURRENT = 6;

const GAL_MAX_CONCURRENT = 2;

const GAL_TIMEOUT_MS = 45000;



function galDrain() {
@@ -71,12 +71,10 @@ function galDrain() { 
        setTimeout(() => { galQueue.push(job); galDrain(); }, 2000);

      }

    }).catch(err => {

      if (err.name === 'AbortError') {

      job.retries = (job.retries || 0) + 1;

      if (job.retries < 3) {

        setTimeout(() => { galQueue.push(job); galDrain(); }, 2000);

      }

      }

    }).finally(() => { clearTimeout(timer); galActive--; galDrain(); });

  }

}