=== Error ===
```name=message
PHP Warning: Unable to delete stat cache for file mwstore://local-swift-###/#######.###
```
**Via Special:Upload**:
Request ID: `W5Ir5QpAADsAADmp6NYAAABF `
```name=stacktrace,lines=10
#0 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendStore.php(1735): MWExceptionHandler::handleError(integer, string, string, integer, array, array)
#1 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendStore.php(239): FileBackendStore->deleteFileCache(string)
#2 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendStore.php(1161): FileBackendStore->deleteInternal(array)
#3 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackend.php(670): FileBackendStore->doQuickOperationsInternal(array)
#4 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendMultiWrite.php(498): FileBackend->doQuickOperations(array)
#5 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackend.php(670): FileBackendMultiWrite->doQuickOperationsInternal(array)
#6 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/FileRepo.php(1065): FileBackend->doQuickOperations(array)
#7 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/file/LocalFile.php(1154): FileRepo->quickPurgeBatch(array)
#8 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/file/LocalFile.php(1091): LocalFile->purgeThumbList(string, array)
#9 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/file/LocalFile.php(1789): LocalFile->purgeThumbnails()
#10 /srv/mediawiki/php-1.32.0-wmf.20/includes/deferred/AutoCommitUpdate.php(42): Closure$LocalFile::recordUpload2(Wikimedia\Rdbms\DatabaseMysqli, string)
#11 /srv/mediawiki/php-1.32.0-wmf.20/includes/deferred/DeferredUpdates.php(268): AutoCommitUpdate->doUpdate()
#12 /srv/mediawiki/php-1.32.0-wmf.20/includes/deferred/DeferredUpdates.php(214): DeferredUpdates::runUpdate(AutoCommitUpdate, Wikimedia\Rdbms\LBFactoryMulti, string, integer)
#13 /srv/mediawiki/php-1.32.0-wmf.20/includes/deferred/DeferredUpdates.php(130): DeferredUpdates::execute(array, string, integer)
#14 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(607): DeferredUpdates::doUpdates(string, integer)
#15 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(576): MediaWiki::preOutputCommit(RequestContext, Closure$MediaWiki::main;1168)
#16 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(884): MediaWiki->doPreOutputCommit(Closure$MediaWiki::main;1168)
#17 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(525): MediaWiki->main()
#18 /srv/mediawiki/php-1.32.0-wmf.20/index.php(42): MediaWiki->run()
```
**Via web action=delete**:
Request ID: `W5Ir5QpAMFgAAFJ1M7IAAAAF`
```name=stacktrace,limit=10
#0 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendStore.php(1735): MWExceptionHandler::handleError(integer, string, string, integer, array, array)
#1 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendStore.php(273): FileBackendStore->deleteFileCache(string)
#2 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/fileop/MoveFileOp.php(93): FileBackendStore->moveInternal(array)
#3 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/fileop/FileOp.php(287): MoveFileOp->doAttempt()
#4 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileOpBatch.php(177): FileOp->attempt()
#5 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileOpBatch.php(132): FileOpBatch::runParallelBatches(array, StatusValue)
#6 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendStore.php(1115): FileOpBatch::attempt(array, array, NullFileJournal)
#7 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackend.php(432): FileBackendStore->doOperationsInternal(array, array)
#8 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendMultiWrite.php(181): FileBackend->doOperations(array, array)
#9 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackend.php(432): FileBackendMultiWrite->doOperationsInternal(array, array)
#10 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/FileRepo.php(1465): FileBackend->doOperations(array, array)
#11 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/LocalRepo.php(593): FileRepo->deleteBatch(array)
#12 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/LocalRepo.php(576): LocalRepo->skipWriteOperationIfSha1(string, array)
#13 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/file/LocalFile.php(2709): LocalRepo->deleteBatch(array)
#14 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/file/LocalFile.php(1989): LocalFileDeleteBatch->execute()
#15 /srv/mediawiki/php-1.32.0-wmf.20/includes/FileDeleteForm.php(201): LocalFile->delete(string, boolean, User)
#16 /srv/mediawiki/php-1.32.0-wmf.20/includes/FileDeleteForm.php(119): FileDeleteForm::doDelete(Title, LocalFile, string, string, boolean, User)
#17 /srv/mediawiki/php-1.32.0-wmf.20/includes/page/ImagePage.php(992): FileDeleteForm->execute()
#18 /srv/mediawiki/php-1.32.0-wmf.20/includes/actions/DeleteAction.php(46): ImagePage->delete()
#19 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(501): DeleteAction->show()
#20 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(294): MediaWiki->performAction(ImagePage, Title)
#21 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(868): MediaWiki->performRequest()
#22 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(525): MediaWiki->main()
#23 /srv/mediawiki/php-1.32.0-wmf.20/index.php(42): MediaWiki->run()
```
**Via API **:
Request ID: `W5IrsgpAAEwAAAkJHZAAAACY`
```name=stacktrace,limit=10
wiki: commons.wikimedia.org
url: /w/api.php?origin=https%3A%2F%2Fen%2Ewikipedia%2Eorg
PHP Warning: Unable to delete stat cache for file mwstore://local-swift-codfw/local-temp/a/a0/20180907074139!###.jpg.
#0 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendStore.php(1735): MWExceptionHandler::handleError(integer, string, string, integer, array, array)
#1 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendStore.php(170): FileBackendStore->deleteFileCache(string)
#2 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendStore.php(1161): FileBackendStore->storeInternal(array)
#3 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackend.php(670): FileBackendStore->doQuickOperationsInternal(array)
#4 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackendMultiWrite.php(514): FileBackend->doQuickOperations(array)
#5 /srv/mediawiki/php-1.32.0-wmf.20/includes/libs/filebackend/FileBackend.php(670): FileBackendMultiWrite->doQuickOperationsInternal(array)
#6 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/FileRepo.php(1042): FileBackend->doQuickOperations(array)
#7 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/FileRepo.php(968): FileRepo->quickImportBatch(array)
#8 /srv/mediawiki/php-1.32.0-wmf.20/includes/filerepo/FileRepo.php(1088): FileRepo->quickImport(string, string)
#9 /srv/mediawiki/php-1.32.0-wmf.20/includes/upload/UploadStash.php(256): FileRepo->storeTemp(string, string)
#10 /srv/mediawiki/php-1.32.0-wmf.20/includes/upload/UploadBase.php(1124): UploadStash->stashFile(string, string)
#11 /srv/mediawiki/php-1.32.0-wmf.20/includes/upload/UploadFromChunks.php(124): UploadBase->doStashFile(User)
#12 /srv/mediawiki/php-1.32.0-wmf.20/includes/upload/UploadBase.php(1070): UploadFromChunks->doStashFile(User)
#13 /srv/mediawiki/php-1.32.0-wmf.20/includes/upload/UploadFromChunks.php(76): UploadBase->tryStashFile(User, boolean)
#14 /srv/mediawiki/php-1.32.0-wmf.20/includes/api/ApiUpload.php(315): UploadFromChunks->tryStashFile(User, boolean)
#15 /srv/mediawiki/php-1.32.0-wmf.20/includes/api/ApiUpload.php(178): ApiUpload->performStash(string, array)
#16 /srv/mediawiki/php-1.32.0-wmf.20/includes/api/ApiUpload.php(129): ApiUpload->getWarningsResult(array)
#17 /srv/mediawiki/php-1.32.0-wmf.20/includes/api/ApiUpload.php(104): ApiUpload->getContextResult()
#18 /srv/mediawiki/php-1.32.0-wmf.20/includes/api/ApiMain.php(1587): ApiUpload->execute()
#19 /srv/mediawiki/php-1.32.0-wmf.20/includes/api/ApiMain.php(531): ApiMain->executeAction()
#20 /srv/mediawiki/php-1.32.0-wmf.20/includes/api/ApiMain.php(502): ApiMain->executeActionWithErrorHandling()
#21 /srv/mediawiki/php-1.32.0-wmf.20/api.php(87): ApiMain->execute()
```
== Notes ===