QNAP dropping packets when PMS is running

I need to know when this occurred.

Did it occur during maintenance and maybe when the host was fully saturated (network or CPU) ?

Remember, ICMP ping delivery and reply is NOT required when TCP traffic is demanding bandwidth (TCP is higher priority in the OSI model stack)

I do think you’re running out of resource there and it’s showing as the server gets loaded up. The challenge now is “what”.

What did you load overnight?

It looks like it started at exactly 2am, is that significant?
Nothing was added over night.
2021-10-26_16-57-08

Today I have re-encoded any m4v and mkv files to mp4 and checked all filenames etc. just incase there was a file it was having trouble reading.

That job will be finished soon and I’ll recan the library.
CPU and memory are low (the 670pro originally came with 2GB ram but I doubled that).
2021-10-26_17-02-32
2021-10-26_17-03-14

problem happening at 2am is VERY convenient.

The default Butler (Scheduled Tasks) start time is 2am.

Settings - Server - Scheduled Tasks

will show you the butler start / end time window and the tasks it’s performing.

I’m starting to wonder / challenge how the bonded adapter is setup.

Oct 22, 2021 10:20:19.583 [0x7f407ba2a0c8] DEBUG -  * 1 lo (127.0.0.1) (loopback: 1)
Oct 22, 2021 10:20:19.583 [0x7f407ba2a0c8] DEBUG -  * 4 bond0 (192.168.103.131) (loopback: 0)

How is it configured in QTS and do you have it plugged into an unmanaged switch or a managed switch which supports LACP ?

yes, scheduled tasks were set to 2am (changed to 00:00 from tonight)

The bond is on a managed switch with LACP set up okay.
I have previously discounted this by removing the bond to separate NICs and the packet loss behaviour is the same across both interfaces.

overnight logs attached, here is a summary of errors and criticals;

**com.plexapp.agents.none.log**
2021-10-26 18:59:21,970 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/b/0de79c166e0cd753b7a34d5537c3f5764252bf6.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:22,056 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/e/47c13682183f8e1aed0962933071c366c883010.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:22,162 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/c/41d5240ad9572cf6108e821e1ab32ea053fa54b.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:24,624 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/5/2fc1c7bc08995e8b6f3ad215fd2ead678566bf9.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:25,076 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/6/ff06bba4586c866c55756c2036a973d845e74b3.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:25,197 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/1/42b8920f0f7bc4bb2e91c89ae9cff7bdcc92ef5.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:25,517 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/1/8ac4429ad8185551fab8f952661dabe2d2dd9c8.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:26,092 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/8/9862770b3e31dc004920ec08f28e066a3991bb6.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:26,128 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/2/af037a0e9a900338851f56871834db0ce334e08.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:26,702 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/b/216c888c794e400476f8eadac56efc8bb12f964.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:27,015 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/8/3eb9e887eee038e1905dfb576fc6eb53332c29e.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:27,112 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/1/cfc81cfcec5a46092885bbe0651625ca08b646f.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:27,446 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/4/27d52716b56b109b4b0dfa54241cf14e2fe7568.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:27,457 (7f4fc51bdb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/a/fe3ae0f1326c9e267a5af2636f312378c26d5e6.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:27,675 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/d/ed432dcccc42d48e800e548122f667646544c83.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:28,220 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/5/d96d5fa1c2fa1ab52dadb1d553a1318517b348a.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:28,705 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/c/a395b63ccdf2d7fc15c670004823686d14261d8.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:28,717 (7f4fc51bdb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/0/409b174d78ee8c029895e4cc9e13aa14a297fea.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:28,983 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/3/d82fbd9d8d046776f285814a9b0906657c04cc1.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:29,126 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/8/2ee6972908308b01bde3ac1f08ce4f12440aa1a.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:29,582 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/f/d5ddf384f2be3cb311d00d9b33e7c57154f6385.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:29,651 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/7/c78012a81b69176d682506cac9ca37b5268e0c1.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:29,816 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/2/1cc1c2c470ba556072acb4ae741e5d10fd117cf.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:30,139 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/7/6916967094ffd8b06c375cb69d99fbc1831ad89.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:30,270 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/c/ea3354b2f5a48fe1476ba06ed5facbd6f32ab1c.bundle/Contents/com.plexapp.agents.none
2021-10-26 18:59:30,346 (7f4fc52dcb38) :  ERROR (model:205) - Cannot read model from /share/CACHEDEV1_DATA/.qpkg/PlexMediaServer/Library/Plex Media Server/Metadata/Movies/6/4524ee292ffb05f87a59327817eda06debc54b6.bundle/Contents/com.plexapp.agents.none

**com.plexapp.agents.thetvdb.log**
2021-10-25 11:30:44,792 (7fb7631fab38) :  CRITICAL (runtime:493) - Exception matching route for path "/" (most recent call last):
2021-10-25 11:30:44,794 (7fb7631d7b38) :  CRITICAL (runtime:493) - Exception matching route for path "/" (most recent call last):
2021-10-25 11:30:44,793 (7fb7631fab38) :  ERROR (runtime:846) - Could not find route matching /:/plugins/com.plexapp.agents.thetvdb
2021-10-25 11:30:44,795 (7fb7631d7b38) :  ERROR (runtime:846) - Could not find route matching /:/plugins/com.plexapp.agents.thetvdb

**com.plexapp.system.log**
2021-10-26 19:56:16,303 (7fd10c4c1848) :  CRITICAL (runtime:709) - Private handlers are no longer supported; couldn't register <bound method StreamService.token_handler of <streamservice.StreamService object at 0x7fd109167910>>
2021-10-26 19:56:16,407 (7fd108e0fb38) :  CRITICAL (bundleservice:141) - Exception adding bundle: WebClient.bundle (most recent call last):
2021-10-26 19:56:16,495 (7fd108631b38) :  CRITICAL (bundleservice:141) - Exception adding bundle: WebClient.bundle (most recent call last):
2021-10-26 19:56:16,509 (7fd10856bb38) :  CRITICAL (bundleservice:141) - Exception adding bundle: WebClient.bundle (most recent call last):
2021-10-26 19:56:15,168 (7fd10c4c1848) :  WARNING (data:179) - Error decoding with simplejson, using demjson instead (this will cause a performance hit) - Expecting property name enclosed in double quotes: line 26 column 1 (char 1078)
ExpatError: no element found: line 1, column 0
ExpatError: no element found: line 1, column 0
ExpatError: no element found: line 1, column 0

**Plex Media Server.log**
*(lots of these) device_description.xml attached to ticket, this is a sonos speaker*
Oct 26, 2021 22:40:52.598 [0x7f47023cab38] ERROR - SSDP: Error parsing device schema for http://192.168.103.73:1400/xml/device_description.xml
Oct 26, 2021 22:50:47.920 [0x7f47023cab38] ERROR - Error issuing curl_easy_perform(handle): 28

**com.plexapp.agents.localmedia.log**
2021-10-27 07:18:35,929 (7efc7ec2a848) :  CRITICAL (sandbox:298) - Function named 'Start' couldn't be found in the current environment

Plex Media Server Logs_2021-10-27_08-28-53.zip (2.0 MB)
device_description.xml.zip (2.5 KB)

@Flob1

If you’re going to paste raw log excerpts (not the preferred method), please use the code </> formatting option button. It makes the output more legible and managable.

There was an outtage yesterday which impacted all metadata services.

I would

  1. Refresh All Metadata for each section
  2. Empty Trash
  3. Clean Bundles
  4. Optimize Database when all actions have been done.

Thanks Chuck, it seems very stable now, will see what happens overnight.

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