##### Error
Request ID: `XWbJrQpAEDcAABSPSkwAAAAC`
Request URL: commons.wikimedia.org/w/api.php
```name=message
[XWbJrQpAEDcAABSPSkwAAAAC] /w/api.php PHP Fatal Error from line 164 of /srv/mediawiki/php-1.34.0-wmf.20/includes/upload/UploadFromChunks.php: Call to undefined method MediaWiki\FileBackend\FSFile\TempFSFileFactory::getTempFSFile()
```
```name=trace,lines=10
#0 /srv/mediawiki/php-1.34.0-wmf.20/includes/upload/UploadFromChunks.php(164): NO_FUNCTION_GIVEN()
#1 /srv/mediawiki/php-1.34.0-wmf.20/includes/api/ApiUpload.php(256): UploadFromChunks->concatenateChunks()
#2 /srv/mediawiki/php-1.34.0-wmf.20/includes/api/ApiUpload.php(132): ApiUpload->getChunkResult(array)
#3 /srv/mediawiki/php-1.34.0-wmf.20/includes/api/ApiUpload.php(104): ApiUpload->getContextResult()
#4 /srv/mediawiki/php-1.34.0-wmf.20/includes/api/ApiMain.php(1595): ApiUpload->execute()
#5 /srv/mediawiki/php-1.34.0-wmf.20/includes/api/ApiMain.php(533): ApiMain->executeAction()
#6 /srv/mediawiki/php-1.34.0-wmf.20/includes/api/ApiMain.php(504): ApiMain->executeActionWithErrorHandling()
#7 /srv/mediawiki/php-1.34.0-wmf.20/api.php(86): ApiMain->execute()
#8 /srv/mediawiki/w/api.php(3): include(string)
#9 {main}
```
##### Impact
53 hits in the last 15 minutes, after deploying wmf.20 to group 1, 134 in the last 24 hours. Not seen before that.
##### Notes
Blocking the train.
Request ID: `XWbKWgpAAE4AAHbdMzgAAAAF`
Request URL: jobrunner.discovery.wmnet/rpc/RunSingleJob.php
```name=message
[XWbKWgpAAE4AAHbdMzgAAAAF] [no req] Error from line 164 of /srv/mediawiki/php-1.34.0-wmf.20/includes/upload/UploadFromChunks.php: Call to undefined method MediaWiki\FileBackend\FSFile\TempFSFileFactory::getTempFSFile()
```
```name=trace,lines=10
#0 /srv/mediawiki/php-1.34.0-wmf.20/includes/jobqueue/jobs/AssembleUploadChunksJob.php(65): UploadFromChunks->concatenateChunks()
#1 /srv/mediawiki/php-1.34.0-wmf.20/extensions/EventBus/includes/JobExecutor.php(64): AssembleUploadChunksJob->run()
#2 /srv/mediawiki/rpc/RunSingleJob.php(76): JobExecutor->execute(array)
#3 {main}
```
##### Impact
48 hits in the last 15 minutes, after deploying wmf.20 to group 1, 89 in the last 24 hours. Not seen before that.
##### Notes
Blocking the train.