diff --git a/puppet/backend.pp b/puppet/backend.pp
index 0d50a6a..7ae8bab 100644
--- a/puppet/backend.pp
+++ b/puppet/backend.pp
@@ -4,6 +4,16 @@
 $redis_host = 'video-redis-buster.video.eqiad1.wikimedia.cloud'
 $http_host = 'v2c.wmflabs.org'
 
+# Configure encoding05 and encoding06 to use 1 worker and listen to the heavy
+# queue so that resource intensive tasks don't bring down workers.
+if $facts['hostname'] in ['encoding05', 'encoding06'] {
+  $celeryd_concurrency = '1'
+  $celeryd_queues      = 'heavy,celery'
+} else {
+  $celeryd_concurrency = '2'
+  $celeryd_queues      = 'celery'
+}
+
 ## BASIC INSTANCE SETUP
 
 # include role::labs::lvm::srv
@@ -211,19 +221,19 @@
     require => File['/etc/systemd/system/cron.service.d'],
 }
 
-$celeryd_config = '# THIS FILE IS MANAGED BY MANUAL PUPPET
+$celeryd_config = "# THIS FILE IS MANAGED BY MANUAL PUPPET
 CELERYD_NODES=1
-CELERYD_OPTS="--concurrency=2"
-CELERY_BIN="/srv/v2c/venv/bin/celery"
-CELERY_APP="video2commons.backend.worker"
-CELERYD_MULTI="multi"
-CELERYD_LOG_LEVEL="INFO"
-CELERYD_LOG_FILE="/var/log/v2ccelery/%N%I.log"
-CELERYD_PID_FILE="/var/run/v2ccelery/%N.pid"
-CELERYD_USER="tools.video2commons"
-CELERYD_GROUP="tools.video2commons"
+CELERYD_OPTS=\"--concurrency=${celeryd_concurrency} -Q ${celeryd_queues}\"
+CELERY_BIN=\"/srv/v2c/venv/bin/celery\"
+CELERY_APP=\"video2commons.backend.worker\"
+CELERYD_MULTI=\"multi\"
+CELERYD_LOG_LEVEL=\"INFO\"
+CELERYD_LOG_FILE=\"/var/log/v2ccelery/%N%I.log\"
+CELERYD_PID_FILE=\"/var/run/v2ccelery/%N.pid\"
+CELERYD_USER=\"tools.video2commons\"
+CELERYD_GROUP=\"tools.video2commons\"
 CELERY_CREATE_DIRS=1
-'
+"
 
 file { '/etc/default/v2ccelery':
     ensure  => file,
diff --git a/video2commons/backend/worker.py b/video2commons/backend/worker.py
index 369c7b2..2fb4391 100644
--- a/video2commons/backend/worker.py
+++ b/video2commons/backend/worker.py
@@ -25,6 +25,7 @@
 import celery
 from celery.contrib.abortable import AbortableTask
 from celery.exceptions import Ignore
+from kombu import Queue
 from redis import Redis
 import pywikibot
 
@@ -49,6 +50,10 @@
 
 app.conf.accept_content = ["json"]
 app.conf.worker_prefetch_multiplier = 1
+app.conf.task_queues = [
+    Queue("celery"),
+    Queue("heavy"),
+]
 
 redisconnection = Redis(host=redis_host, db=3, password=redis_pw)
 
diff --git a/video2commons/frontend/api.py b/video2commons/frontend/api.py
index 2e90f7e..8947702 100644
--- a/video2commons/frontend/api.py
+++ b/video2commons/frontend/api.py
@@ -20,6 +20,7 @@
 """video2commons web API."""
 
 import json
+import os
 import traceback
 import re
 
@@ -45,6 +46,9 @@
     do_validate_filename,
     do_validate_filedesc,
     sanitize,
+    predict_task_type_ffprobe,
+    DEFAULT_QUEUE,
+    HEAVY_QUEUE,
 )
 from video2commons.frontend.upload import upload as _upload, status as _uploadstatus
 from video2commons.shared import stats
@@ -56,6 +60,16 @@
     r"(watch\?.*?(?=v=)v=|embed/|v/|.+\?v=)?([^&=%\?]{11})"
 )
 
+FILEKEY_REGEX = re.compile(
+    r"^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
+)
+
+UPLOADS_DIR = os.path.join(
+    os.path.dirname(os.path.realpath(__file__)), "static/uploads"
+)
+
+VALID_QUEUES = {DEFAULT_QUEUE, HEAVY_QUEUE}
+
 api = Blueprint("api", __name__)
 
 
@@ -426,6 +440,22 @@ def run_task():
     downloadkey, convertkey = get_backend_keys(request.form["format"])
     username = session["username"]
     oauth = (session["access_token_key"], session["access_token_secret"])
+    queue = request.form.get("queue")
+
+    # If no queue is specified, such is the case with manually uploaded files
+    # due to yt-dlp not being used and extracturl not being called, determine
+    # which queue to process the file on based on file metadata such as bitrate
+    # and resolution. We do this to avoid OOM errors with heavy files.
+    if not queue:
+        if url.startswith("uploads:"):
+            filekey = url.split(":", 1)[1]
+            if not FILEKEY_REGEX.match(filekey):
+                return jsonify(error="Invalid file key format"), 400
+
+            filepath = os.path.join(UPLOADS_DIR, filekey)
+            queue = predict_task_type_ffprobe(filepath)
+        else:
+            queue = DEFAULT_QUEUE
 
     taskid = run_task_internal(
         filename,
@@ -440,17 +470,23 @@ def run_task():
             username,
             oauth,
         ),
+        queue,
     )
 
     return jsonify(id=taskid, step="success")
 
 
-def run_task_internal(filename, params):
+def run_task_internal(filename, params, queue):
     """Internal run task function to accept whatever params given."""
     banned = check_banned()
     assert not banned, "You are banned from using this tool! Reason: " + banned
 
-    res = worker.main.delay(*params)
+    # Validate queue to prevent tasks being sent to non-existent queues.
+    # Unfortunately Celery tries to be helpful and creates queues on demand.
+    if queue not in VALID_QUEUES:
+        queue = DEFAULT_QUEUE
+
+    res = worker.main.apply_async(args=params, queue=queue)
     taskid = res.id
 
     expire = 14 * 24 * 3600  # 2 weeks
@@ -491,7 +527,9 @@ def restart_task():
     params = redisconnection.get("params:" + id)
     assert params, "Could not extract the task parameters."
 
-    newid = run_task_internal(filename, json.loads(params))
+    # Always restart failed tasks on the heavy queue as a failsafe in case the
+    # task failed earlier due to being misprioritized.
+    newid = run_task_internal(filename, json.loads(params), HEAVY_QUEUE)
     redisconnection.set("restarted:" + id, newid)
 
     redis_publish("update", {"taskid": id, "data": _status(id)})
diff --git a/video2commons/frontend/static/video2commons.js b/video2commons/frontend/static/video2commons.js
index 91d9497..b0496e6 100644
--- a/video2commons/frontend/static/video2commons.js
+++ b/video2commons/frontend/static/video2commons.js
@@ -365,6 +365,7 @@
 							"filedesc",
 							"filename",
 							"videos",
+							"queue",
 						])
 						.then(() => {
 							newTaskData.initialFilenameValidated = true;
@@ -1317,6 +1318,7 @@
 										filename: video.filename,
 										filedesc: filedesc,
 										format: video.format,
+										queue: video.queue,
 									};
 								});
 							} else {
@@ -1335,6 +1337,7 @@
 									filename: newTaskData.filename,
 									filedesc: filedesc,
 									format: newTaskData.format,
+									queue: newTaskData.queue,
 								});
 							}
 
diff --git a/video2commons/frontend/static/video2commons.min.js b/video2commons/frontend/static/video2commons.min.js
index 5d81029..5208810 100644
--- a/video2commons/frontend/static/video2commons.min.js
+++ b/video2commons/frontend/static/video2commons.min.js
@@ -1,5 +1,5 @@
-(s=>{var n,r,l,t,i,o=window.config,d=window.i18n,c='<img alt="File:Ajax-loader.gif" src="//upload.wikimedia.org/wikipedia/commons/d/de/Ajax-loader.gif" data-file-width="32" data-file-height="32" height="32" width="32">',e="rtl"===d["@dir"],u={abortbutton:`<button type="button" class="btn btn-danger btn-xs flip pull-right"><span class="glyphicon glyphicon-remove"></span> ${nunjucks.lib.escape(d.abort)}</button>`,removebutton:`<button type="button" class="btn btn-danger btn-xs flip pull-right remove-btn"><span class="glyphicon glyphicon-trash"></span> ${nunjucks.lib.escape(d.remove)}</button>`,restartbutton:`<button type="button" class="btn btn-xs flip pull-right restart-btn"><span class="glyphicon glyphicon-repeat"></span> ${nunjucks.lib.escape(d.restart)}</button>`,loading:`<center>${c}&nbsp;&nbsp;${nunjucks.lib.escape(d.loading)}</center>`,errorDisconnect:`<div class="alert alert-danger">${nunjucks.lib.escape(d.errorDisconnect)}</div>`,yourTasks:`<h4>${nunjucks.lib.escape(d.yourTasks)}</h4><table id="tasktable" class="table"><colgroup><col style="width: 20%;"/><col style="width: 10%;"/><col style="width: 40%;"/><col style="width: 30%;"/></colgroup><tbody></tbody></table>`,workers:`<h4>${nunjucks.lib.escape(d.workers)}</h4>`,capacity:e?`<div><span id="capacity">...</span> ${d.capacity}</div>`:`<div>${d.capacity} <span id="capacity">...</span></div>`,utilization:e?`<div><span id="utilization">...</span> ${d.utilization}</div>`:`<div>${d.utilization} <span id="utilization">...</span></div>`,pending:e?`<div><span id="pending">...</span> ${d.pending}</div>`:`<div>${d.pending} <span id="pending">...</span></div>`,addTask:`<input class="btn btn-primary btn-md" type="button" accesskey="n" value="${nunjucks.lib.escape(d.addTask)}">`,requestServerSide:`<a class="btn btn-primary btn-success btn-md flip pull-right disabled" id="ssubtn">${nunjucks.lib.escape(d.createServerSide)}</a>`,progressbar:'<div class="progress"><div class="progress-bar" role="progressbar"></div></div>',prevbutton:`<span class="glyphicon glyphicon-chevron-${e?"right":"left"}"></span> `+nunjucks.lib.escape(d.back),nextbutton:nunjucks.lib.escape(d.next)+` <span class="glyphicon glyphicon-chevron-${e?"left":"right"}"></span>`,confirmbutton:nunjucks.lib.escape(d.confirm)},g="",p=(new nunjucks.Environment).addGlobal("config",o).addGlobal("_",e=>d[e]).addFilter("process_link",e=>{for(var a,t=/\{\{#a\}\}(.*?)\{\{\/a\}\}/g,i=0,o="";null!==(a=t.exec(e));)o=(o+=nunjucks.lib.escape(e.substring(i,a.index)))+(e=>{if("#"===e[0]){var a=e.indexOf("|");if(a<0){if(/^[a-z0-9-]+$/i.test(e.slice(1)))return`<a id="${e.slice(1)}"></a>`}else if(/^[a-z0-9-]+$/i.test(e.substring(1,a)))return`<a id="${e.substring(1,a)}">${nunjucks.lib.escape(e.slice(a+1))}</a>`}return`<a>${nunjucks.lib.escape(e)}</a>`})(a[1]),i=t.lastIndex;return 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Please try again.")}),n.promise()},apiPost:(e,a)=>(a._csrf_token=g,s.post("api/"+e,a)),runWithConcurrency(e,a=5){let t=e.slice(),i=s.Deferred(),o=[],n=0,r=0,l=()=>{if(r>=t.length&&0===n)i.resolve(o);else for(;n<a&&r<t.length;){let a=r++;var e=t[a];n++,e().then(e=>{o[a]=e}).fail(e=>{o[a]={error:e}}).always(()=>{n--,l()})}};return l(),i.promise()}};let w=[{label:"Unselected",category:""},{label:"English (en)",category:"Videos in English"},{label:"American English (en-US)",category:"Videos in American English"},{label:"Australian English (en-AU)",category:"Videos in Australian English"},{label:"British English (en-GB)",category:"Videos in British English"},{label:"Canadian English (en-CA)",category:"Videos in Canadian English"},{label:"Spanish (es)",category:"Videos in Spanish"},{label:"Portuguese (pt)",category:"Videos in Portuguese"},{label:"Brazilian Portuguese (pt-BR)",category:"Videos in Brazilian Portuguese"},{label:"Chinese (zh)",category:"Videos in Chinese"},{label:"Cantonese (yue)",category:"Videos in Cantonese"},{label:"Mandarin (cmn)",category:"Videos in Mandarin"},{label:"Japanese (ja)",category:"Videos in Japanese"},{label:"Korean (ko)",category:"Videos in Korean"},{label:"Hindi (hi)",category:"Videos in Hindi"},{label:"Arabic (ar)",category:"Videos in Arabic"},{label:"Russian (ru)",category:"Videos in Russian"},{label:"German (de)",category:"Videos in German"},{label:"Bavarian (bar)",category:"Videos in Bavarian"},{label:"French (fr)",category:"Videos in French"},{label:"Italian (it)",category:"Videos in Italian"},{label:"Dutch (nl)",category:"Videos in Dutch"},{label:"Polish (pl)",category:"Videos in Polish"},{label:"Turkish (tr)",category:"Videos in Turkish"},{label:"Albanian (sq)",category:"Videos in Albanian"},{label:"Algerian Arabic (arq)",category:"Videos in Algerian Arabic"},{label:"Egyptian Arabic (arz)",category:"Videos in Egyptian Arabic"},{label:"Moroccan Arabic (ary)",category:"Videos in Moroccan Arabic"},{label:"North Levantine Arabic (apc)",category:"Videos in North Levantine Arabic"},{label:"Amharic (am)",category:"Videos in Amharic"},{label:"American Sign Language (ase)",category:"Videos in American Sign Language"},{label:"Ancient Greek (grc)",category:"Videos in Ancient Greek"},{label:"Armenian (hy)",category:"Videos in Armenian"},{label:"Assamese (as)",category:"Videos in Assamese"},{label:"Asturian (ast)",category:"Videos in Asturian"},{label:"Avar (av)",category:"Videos in Avar"},{label:"Azerbaijani (az)",category:"Videos in Azerbaijani"},{label:"Balinese (ban)",category:"Videos in Balinese"},{label:"Balochi (bal)",category:"Videos in Balochi"},{label:"Bangla (bn)",category:"Videos in Bangla"},{label:"Basque (eu)",category:"Videos in Basque"},{label:"Belarusian (be)",category:"Videos in Belarusian"},{label:"Bislama (bi)",category:"Videos in Bislama"},{label:"Bosnian (bs)",category:"Videos in Bosnian"},{label:"Breton (br)",category:"Videos in Breton"},{label:"British Sign Language (bfi)",category:"Videos in British Sign Language"},{label:"Bulgarian (bg)",category:"Videos in Bulgarian"},{label:"Burmese (my)",category:"Videos in Burmese"},{label:"Catalan (ca)",category:"Videos in Catalan"},{label:"Cebuano (ceb)",category:"Videos in Cebuano"},{label:"Central Bikol (bcl)",category:"Videos in Central Bikol"},{label:"Chamorro (ch)",category:"Videos in Chamorro"},{label:"Cherokee (chr)",category:"Videos in Cherokee"},{label:"Cornish (kw)",category:"Videos in Cornish"},{label:"Crimean Tatar (crh)",category:"Videos in Crimean Tatar"},{label:"Croatian (hr)",category:"Videos in Croatian"},{label:"Czech (cs)",category:"Videos in Czech"},{label:"Danish (da)",category:"Videos in Danish"},{label:"Dari (prs)",category:"Videos in Dari"},{label:"Esperanto (eo)",category:"Videos in Esperanto"},{label:"Estonian (et)",category:"Videos in Estonian"},{label:"Farsi (fa)",category:"Videos in Farsi"},{label:"Fijian (fj)",category:"Videos in Fijian"},{label:"Finnish (fi)",category:"Videos in Finnish"},{label:"Galician (gl)",category:"Videos in Galician"},{label:"Georgian (ka)",category:"Videos in Georgian"},{label:"Greek (el)",category:"Videos in Greek"},{label:"Greenlandic (kl)",category:"Videos in Greenlandic"},{label:"Guarani (gn)",category:"Videos in Guarani"},{label:"Gujarati (gu)",category:"Videos in Gujarati"},{label:"Haitian Creole (ht)",category:"Videos in Haitian Creole"},{label:"Hakka (hak)",category:"Videos in Hakka"},{label:"Min Dong Chinese (cdo)",category:"Videos in Min Dong Chinese"},{label:"Hausa (ha)",category:"Videos in Hausa"},{label:"Hebrew (he)",category:"Videos in Hebrew"},{label:"Hungarian (hu)",category:"Videos in Hungarian"},{label:"Icelandic (is)",category:"Videos in Icelandic"},{label:"Ido (io)",category:"Videos in Ido"},{label:"Igbo (ig)",category:"Videos in Igbo"},{label:"Indonesian (id)",category:"Videos in Indonesian"},{label:"Irish (ga)",category:"Videos in Irish"},{label:"Jamaican Patois (jam)",category:"Videos in Jamaican Patois"},{label:"Javanese (jv)",category:"Videos in Javanese"},{label:"Judaeo-Spanish (lad)",category:"Videos in Judaeo-Spanish"},{label:"Kannada (kn)",category:"Videos in Kannada"},{label:"Kashmiri (ks)",category:"Videos in Kashmiri"},{label:"Kazakh (kk)",category:"Videos in Kazakh"},{label:"Khasi (kha)",category:"Videos in Khasi"},{label:"Khmer (km)",category:"Videos in Khmer"},{label:"Komi (kv)",category:"Videos in Komi"},{label:"Kotava (avk)",category:"Videos in Kotava"},{label:"Kurdish (ku)",category:"Videos in Kurdish"},{label:"Kyrgyz (ky)",category:"Videos in Kyrgyz"},{label:"K'iche' (quc)",category:"Videos in K'iche'"},{label:"Lakota (lkt)",category:"Videos in Lakota"},{label:"Lao (lo)",category:"Videos in Lao"},{label:"Latin (la)",category:"Videos in Latin"},{label:"Latvian (lv)",category:"Videos in Latvian"},{label:"Leonese (roa-leon)",category:"Videos in Leonese"},{label:"Limburgish (li)",category:"Videos in Limburgish"},{label:"Lithuanian (lt)",category:"Videos in Lithuanian"},{label:"Lojban (jbo)",category:"Videos in Lojban"},{label:"Low German (nds)",category:"Videos in Low German"},{label:"Lozi (loz)",category:"Videos in Lozi"},{label:"Luxembourgish (lb)",category:"Videos in Luxembourgish"},{label:"Macedonian (mk)",category:"Videos in Macedonian"},{label:"Malay (ms)",category:"Videos in Malay"},{label:"Malayalam (ml)",category:"Videos in Malayalam"},{label:"Maltese (mt)",category:"Videos in Maltese"},{label:"Manx (gv)",category:"Videos in Manx"},{label:"Mapudungun (arn)",category:"Videos in Mapudungun"},{label:"Marathi (mr)",category:"Videos in Marathi"},{label:"Marwari (mwr)",category:"Videos in Marwari"},{label:"Mirandese (mwl)",category:"Videos in Mirandese"},{label:"Mongolian (mn)",category:"Videos in Mongolian"},{label:"Mossi (mos)",category:"Videos in Mossi"},{label:"Neapolitan (nap)",category:"Videos in Neapolitan"},{label:"Sicilian (scn)",category:"Videos in Sicilian"},{label:"Nepali (ne)",category:"Videos in Nepali"},{label:"Northern 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(sl)",category:"Videos in Slovene"},{label:"Somali (so)",category:"Videos in Somali"},{label:"Swahili (sw)",category:"Videos in Swahili"},{label:"Swedish (sv)",category:"Videos in Swedish"},{label:"Sylheti (syl)",category:"Videos in Sylheti"},{label:"Tagalog (tl)",category:"Videos in Tagalog"},{label:"Tamazight (zgh)",category:"Videos in Tamazight"},{label:"Tamil (ta)",category:"Videos in Tamil"},{label:"Tatar (tt)",category:"Videos in Tatar"},{label:"Telugu (te)",category:"Videos in Telugu"},{label:"Tetum (tet)",category:"Videos in Tetum"},{label:"Thai (th)",category:"Videos in Thai"},{label:"Tok Pisin (tpi)",category:"Videos in Tok Pisin"},{label:"Toki Pona (tok)",category:"Videos in Toki Pona"},{label:"Tsonga (ts)",category:"Videos in Tsonga"},{label:"Tuvan (tyv)",category:"Videos in Tuvan"},{label:"Twi (tw)",category:"Videos in Twi"},{label:"Ukrainian (uk)",category:"Videos in Ukrainian"},{label:"Urdu (ur)",category:"Videos in Urdu"},{label:"Veps (vep)",category:"Videos in 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\ No newline at end of file
diff --git a/video2commons/frontend/urlextract.py b/video2commons/frontend/urlextract.py
index e32a32a..93c29c6 100644
--- a/video2commons/frontend/urlextract.py
+++ b/video2commons/frontend/urlextract.py
@@ -23,7 +23,9 @@
 from video2commons.backend.encode.transcode import WebVideoTranscode
 from video2commons.config import tooldir, youtube_user, youtube_pass
 
+import json
 import re
+import subprocess
 import emoji
 import guess_language
 import pywikibot
@@ -65,6 +67,78 @@
 # size supported by MediaWiki for uploads.
 MAX_FILENAME_SIZE = 228
 
+# Task queue routing thresholds for the default and heavy queues. Both 4k and
+# 20 Mbps (in kbps) videos get routed to the heavy queue to avoid OOM errors.
+HEAVY_RESOLUTION_THRESHOLD = 3840
+HEAVY_BITRATE_THRESHOLD = 20000
+DEFAULT_QUEUE = "celery"
+HEAVY_QUEUE = "heavy"
+
+
+def predict_task_type(metadata):
+    """Predict how resource-intensive a task is based on yt-dlp metadata."""
+    # Check if the resolution exceed the threshold for the standard queue.
+    width = metadata.get("width") or 0
+    height = metadata.get("height") or 0
+    if width >= HEAVY_RESOLUTION_THRESHOLD or height >= HEAVY_RESOLUTION_THRESHOLD:
+        return HEAVY_QUEUE
+
+    # Check the bitrate. TBR is total, VBR is video only (both in kbps).
+    bitrate = metadata.get("tbr") or metadata.get("vbr") or 0
+    if bitrate >= HEAVY_BITRATE_THRESHOLD:
+        return HEAVY_QUEUE
+
+    # Default to heavy if no bitrate is available. This is a fallback for video
+    # sources that don't have yt-dlp extractors such as NASA Scientific
+    # Visualization Studio, which typically has large files.
+    if metadata.get("tbr") is None and metadata.get("vbr") is None:
+        return HEAVY_QUEUE
+
+    return DEFAULT_QUEUE
+
+
+def predict_task_type_ffprobe(filepath):
+    """Predict how resource-intensive a task is based on ffprobe metadata."""
+    result = subprocess.run(
+        [
+            "ffprobe",
+            "-v",
+            "quiet",
+            "-print_format",
+            "json",
+            "-show_streams",
+            "-show_format",
+            filepath,
+        ],
+        capture_output=True,
+        text=True,
+    )
+
+    if result.returncode != 0:
+        return DEFAULT_QUEUE
+
+    probe = json.loads(result.stdout)
+
+    # Check video streams for resolution.
+    for stream in probe.get("streams", []):
+        if stream.get("codec_type") == "video":
+            width = stream.get("width") or 0
+            height = stream.get("height") or 0
+            if (
+                width >= HEAVY_RESOLUTION_THRESHOLD
+                or height >= HEAVY_RESOLUTION_THRESHOLD
+            ):
+                return HEAVY_QUEUE
+
+    # Check bitrate from format (in bits/sec, convert to kbps).
+    format_info = probe.get("format", {})
+    bitrate_bps = int(format_info.get("bit_rate") or 0)
+    bitrate_kbps = bitrate_bps / 1000
+    if bitrate_kbps >= HEAVY_BITRATE_THRESHOLD:
+        return HEAVY_QUEUE
+
+    return DEFAULT_QUEUE
+
 
 def make_dummy_desc(filename):
     filedesc = FILEDESC_TEMPLATE % {
@@ -158,6 +232,7 @@ def _extract_info(info):
         "filedesc": filedesc.strip(),
         "filename": sanitize(title),
         "date": _date(url, ie_key, title, info),
+        "queue": predict_task_type(info),
     }
 
 
diff --git a/video2commons/shared/stats.py b/video2commons/shared/stats.py
index 070bb02..c2a45be 100644
--- a/video2commons/shared/stats.py
+++ b/video2commons/shared/stats.py
@@ -44,8 +44,8 @@ def collect_worker_stats(conn, inspector):
 
 
 def get_queue_length(conn):
-    """Get the number of messages waiting in the broker queue."""
-    return conn.llen("celery") + conn.hlen("unacked")
+    """Get the number of messages waiting in the broker queues."""
+    return conn.llen("celery") + conn.llen("heavy") + conn.hlen("unacked")
 
 
 def update_task_stats(conn, task_id, remove=False):