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Server hangs for a minute when uploading folder with data #10970

Closed 1ndahous3 closed 6 years ago

1ndahous3 commented 6 years ago

I have server with NC 14 RC 2, Debian Buster, PHP 7.2. APCu and OPcache enabled.

Network speed (wired): 150 Mbps incoming / 15 Mbps upcoming

Server works very fast in idle mode, so web interface very responsive in NC pages surfing. When somebody of my users starts to upload file or folder (by Drag'n'Drop), server hangs for a minute. Server really doesn't start file uploading, so user see "Uploading..." if don't update page. If he update page, it will not load for a while.

Not sure it's the same problem, also when I go to "fresh" folder (with photos) and scroll down quickly, NC creating a thumbnails or doing something and then server dies for a minute: page doesn't load for a while when trying to update it, sometimes it returns "nginx 502 bad gateway" page.

Server configuration

Operating system: Debian Buster

Web server: Nginx/1.14.0

Database: 10.1.35-MariaDB-1

PHP version: PHP 7.2.9-1

Nextcloud version: 14.0.0 RC 2

Signing status:

Signing status ``` No errors have been found. ```

List of activated apps:

App list ``` Enabled: - accessibility: 1.0.1 - activity: 2.7.0 - apporder: 0.5.0 - audioplayer: 2.3.2 - bruteforcesettings: 1.1.0 - calendar: 1.6.1 - cloud_federation_api: 0.0.1 - comments: 1.4.0 - contacts: 2.1.6 - dav: 1.6.0 - deck: 0.4.1 - federatedfilesharing: 1.4.0 - federation: 1.4.0 - files: 1.9.0 - files_pdfviewer: 1.3.2 - files_sharing: 1.6.2 - files_texteditor: 2.6.0 - files_trashbin: 1.4.1 - files_versions: 1.7.1 - files_videoplayer: 1.3.0 - firstrunwizard: 2.3.0 - gallery: 18.1.0 - logreader: 2.0.0 - lookup_server_connector: 1.2.0 - mail: 0.10.0 - nextcloud_announcements: 1.3.0 - notifications: 2.2.1 - oauth2: 1.2.1 - password_policy: 1.4.0 - provisioning_api: 1.4.0 - serverinfo: 1.4.0 - sharebymail: 1.4.0 - support: 1.0.0 - survey_client: 1.2.0 - systemtags: 1.4.0 - theming: 1.5.0 - twofactor_backupcodes: 1.3.1 - updatenotification: 1.4.1 - workflowengine: 1.4.0 Disabled: - admin_audit - checksum - encryption - files_external - groupfolders - metadata - spreed - tasks - user_external - user_ldap ```

Nextcloud configuration:

Config report ``` { "system": { "instanceid": "***REMOVED SENSITIVE VALUE***", "passwordsalt": "***REMOVED SENSITIVE VALUE***", "secret": "***REMOVED SENSITIVE VALUE***", "trusted_domains": "***REMOVED SENSITIVE VALUE***", "datadirectory": "***REMOVED SENSITIVE VALUE***", "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***", "dbtype": "mysql", "version": "14.0.0.18", "dbname": "***REMOVED SENSITIVE VALUE***", "dbhost": "***REMOVED SENSITIVE VALUE***", "dbport": "", "dbtableprefix": "oc_", "dbuser": "***REMOVED SENSITIVE VALUE***", "dbpassword": "***REMOVED SENSITIVE VALUE***", "installed": true, "memcache.local": "\\OC\\Memcache\\APCu", "maintenance": false, "theme": "", "loglevel": 1, "updater.release.channel": "beta" } } ```

Hardware info

hwinfo --short ``` cpu: AMD Phenom(tm) II X6 1100T Processor, 803 MHz AMD Phenom(tm) II X6 1100T Processor, 803 MHz AMD Phenom(tm) II X6 1100T Processor, 803 MHz AMD Phenom(tm) II X6 1100T Processor, 803 MHz AMD Phenom(tm) II X6 1100T Processor, 804 MHz AMD Phenom(tm) II X6 1100T Processor, 803 MHz graphics card: ATI Turks XT [Radeon HD 6670/7670] sound: ATI Turks HDMI Audio [Radeon HD 6500/6600 / 6700M Series] ASUSTeK M5A88-V EVO storage: ATI SB7x0/SB8x0/SB9x0 IDE Controller VIA VT6415 PATA IDE Host Controller ATI SB7x0/SB8x0/SB9x0 SATA Controller [IDE mode] network: enp6s0 Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller wlp4s7 D-Link DWA-525 Wireless N 150 Desktop Adapter (rev.A2) network interface: enp6s0 Ethernet network interface lo Loopback network interface wlp4s7 Ethernet network interface disk: /dev/sda WDC WD5001AALS-0 partition: /dev/sda1 Partition /dev/sda2 Partition /dev/sda3 Partition usb controller: ASMedia ASM1042 SuperSpeed USB Host Controller ASUSTeK M5A88-V EVO ASUSTeK M5A88-V EVO ASUSTeK M5A88-V EVO ASUSTeK M5A88-V EVO ASUSTeK M5A88-V EVO ASUSTeK M5A88-V EVO ASUSTeK M5A88-V EVO bios: BIOS bridge: AMD Family 10h Processor Miscellaneous Control ATI SB700/SB800/SB900 PCI to PCI bridge (PCIE port 1) AMD Family 10h Processor Address Map ASUSTeK M5A88-V EVO ASUSTeK M5A88-V EVO AMD Family 10h Processor Link Control AMD Family 10h Processor DRAM Controller ATI SB700/SB800/SB900 PCI to PCI bridge (PCIE port 0) AMD Family 10h Processor HyperTransport Configuration ATI SBx00 PCI to PCI Bridge AMD RS780/RS880 PCI to PCI bridge (PCIE port 4) AMD RS780 PCI to PCI bridge (ext gfx port 0) AMD RS780/RS880 PCI to PCI bridge (PCIE port 5) hub: Linux Foundation 1.1 root hub Linux Foundation 3.0 root hub Linux Foundation 1.1 root hub Linux Foundation 2.0 root hub Linux Foundation 1.1 root hub Linux Foundation 2.0 root hub Linux Foundation 2.0 root hub Linux Foundation 1.1 root hub Linux Foundation 2.0 root hub memory: Main Memory firewire controller: ASUSTeK M5A88-V EVO unknown: FPU DMA controller PIC Keyboard controller PS/2 Controller ATI SBx00 SMBus Controller /dev/ttyS0 16550A ```

Are you using external storage, if yes which one: no

Are you using encryption: no

Are you using an external user-backend, if yes which one: no

Client configuration

Browser: Chrome latest

Operating system: Debian Buster

Logs

Web server error log

Web server error log ``` 2018/09/03 01:13:22 [error] 8219#8219: *26902 upstream timed out (110: Connection timed out) while reading response header from upstream, client: *REMOVED IP*, server: *REMOVED SERVER*, request: "GET /settings/ajax/checksetup HTTP/2.0", upstream: "fastcgi://unix:/run/php/php7.2-fpm.sock", host: *REMOVED HOST* ```

Nextcloud log (data/nextcloud.log)

Nextcloud log ``` {"reqId":"F1wLZGouT2pjA5ZoV1nN","level":4,"time":"2018-09-02T15:48:43+00:00","remoteAddr":"109.252.44.68","user":"aolo2","app":"webdav","method":"PUT","url":"\/remote.php\/dav\/uploads\/aolo2\/web-file-upload-3cff26c13cf1f6a082d823b1710e6b8b-1535899477004\/0","message":{"Exception":"Sabre\\DAV\\Exception","Message":"Could not rename part file to final file","Code":0,"Trace":[{"file":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Connector\/Sabre\/Directory.php","line":156,"function":"put","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->","args":[null]},{"file":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Upload\/UploadFolder.php","line":39,"function":"createFile","class":"OCA\\DAV\\Connector\\Sabre\\Directory","type":"->","args":["0",null]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":1096,"function":"createFile","class":"OCA\\DAV\\Upload\\UploadFolder","type":"->","args":["0",null]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/CorePlugin.php","line":529,"function":"createFile","class":"Sabre\\DAV\\Server","type":"->","args":["uploads\/aolo2\/web-file-upload-3cff26c13cf1f6a082d823b1710e6b8b-1535899477004\/0",null,null]},{"function":"httpPut","class":"Sabre\\DAV\\CorePlugin","type":"->","args":[{"absoluteUrl":"https:\/\/some.website\/remote.php\/dav\/uploads\/aolo2\/web-file-upload-3cff26c13cf1f6a082d823b1710e6b8b-1535899477004\/0","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/event\/lib\/EventEmitterTrait.php","line":105,"function":"call_user_func_array","args":[[{"__class__":"Sabre\\DAV\\CorePlugin"},"httpPut"],[{"absoluteUrl":"https:\/\/some.website\/remote.php\/dav\/uploads\/aolo2\/web-file-upload-3cff26c13cf1f6a082d823b1710e6b8b-1535899477004\/0","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":479,"function":"emit","class":"Sabre\\Event\\EventEmitter","type":"->","args":["method:PUT",[{"absoluteUrl":"https:\/\/some.website\/remote.php\/dav\/uploads\/aolo2\/web-file-upload-3cff26c13cf1f6a082d823b1710e6b8b-1535899477004\/0","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":254,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->","args":[{"absoluteUrl":"https:\/\/some.website\/remote.php\/dav\/uploads\/aolo2\/web-file-upload-3cff26c13cf1f6a082d823b1710e6b8b-1535899477004\/0","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Server.php","line":293,"function":"exec","class":"Sabre\\DAV\\Server","type":"->","args":[]},{"file":"\/var\/www\/nextcloud\/apps\/dav\/appinfo\/v2\/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->","args":[]},{"file":"\/var\/www\/nextcloud\/remote.php","line":163,"args":["\/var\/www\/nextcloud\/apps\/dav\/appinfo\/v2\/remote.php"],"function":"require_once"}],"File":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Connector\/Sabre\/File.php","Line":224,"CustomMessage":"--"},"userAgent":"Mozilla\/5.0 (X11; Linux x86_64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/68.0.3440.75 Safari\/537.36","version":"14.0.0.18"} {"reqId":"lb5MJgt1hz0FJaBcv04i","level":4,"time":"2018-09-02T15:49:01+00:00","remoteAddr":"109.252.44.68","user":"aolo2","app":"webdav","method":"MKCOL","url":"\/remote.php\/dav\/uploads\/aolo2\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","message":{"Exception":"Doctrine\\DBAL\\Exception\\DriverException","Message":"An exception occurred while executing 'INSERT INTO `oc_filecache` (`mimepart`,`mimetype`,`mtime`,`size`,`etag`,`storage_mtime`,`permissions`,`parent`,`checksum`,`path_hash`,`path`,`name`,`storage`) SELECT ?,?,?,?,?,?,?,?,?,?,?,?,? FROM `oc_filecache` WHERE `storage` = ? AND `path_hash` = ? HAVING COUNT(*) = 0' with params [\"1\", \"2\", 1535903341, -1, \"5b8c066d7aff4\", 1535903341, 31, 4862, \"\", \"93e1a7c9b5110f39f11264535a9be0f9\", \"uploads\\\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252\", \"web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252\", 3, 3, \"93e1a7c9b5110f39f11264535a9be0f9\"]:\n\nSQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction","Code":0,"Trace":[{"file":"\/var\/www\/nextcloud\/3rdparty\/doctrine\/dbal\/lib\/Doctrine\/DBAL\/DBALException.php","line":128,"function":"convertException","class":"Doctrine\\DBAL\\Driver\\AbstractMySQLDriver","type":"->","args":["An exception occurred while executing 'INSERT INTO `oc_filecache` (`mimepart`,`mimetype`,`mtime`,`size`,`etag`,`storage_mtime`,`permissions`,`parent`,`checksum`,`path_hash`,`path`,`name`,`storage`) SELECT ?,?,?,?,?,?,?,?,?,?,?,?,? FROM `oc_filecache` WHERE `storage` = ? AND `path_hash` = ? HAVING COUNT(*) = 0' with params [\"1\", \"2\", 1535903341, -1, \"5b8c066d7aff4\", 1535903341, 31, 4862, \"\", \"93e1a7c9b5110f39f11264535a9be0f9\", \"uploads\\\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252\", \"web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252\", 3, 3, \"93e1a7c9b5110f39f11264535a9be0f9\"]:\n\nSQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction",{"errorInfo":["40001",1213,"Deadlock found when trying to get lock; try restarting transaction"],"__class__":"Doctrine\\DBAL\\Driver\\PDOException"}]},{"file":"\/var\/www\/nextcloud\/3rdparty\/doctrine\/dbal\/lib\/Doctrine\/DBAL\/Connection.php","line":1015,"function":"driverExceptionDuringQuery","class":"Doctrine\\DBAL\\DBALException","type":"::","args":[{"__class__":"Doctrine\\DBAL\\Driver\\PDOMySql\\Driver"},{"errorInfo":["40001",1213,"Deadlock found when trying to get lock; try restarting transaction"],"__class__":"Doctrine\\DBAL\\Driver\\PDOException"},"INSERT INTO `oc_filecache` (`mimepart`,`mimetype`,`mtime`,`size`,`etag`,`storage_mtime`,`permissions`,`parent`,`checksum`,`path_hash`,`path`,`name`,`storage`) SELECT ?,?,?,?,?,?,?,?,?,?,?,?,? FROM `oc_filecache` WHERE `storage` = ? AND `path_hash` = ? HAVING COUNT(*) = 0",{"1":"1","2":"2","3":1535903341,"4":-1,"5":"5b8c066d7aff4","6":1535903341,"7":31,"8":4862,"9":"","10":"93e1a7c9b5110f39f11264535a9be0f9","11":"uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","12":"web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","13":3,"14":3,"15":"93e1a7c9b5110f39f11264535a9be0f9"}]},{"file":"\/var\/www\/nextcloud\/lib\/private\/DB\/Connection.php","line":216,"function":"executeUpdate","class":"Doctrine\\DBAL\\Connection","type":"->","args":["INSERT INTO `oc_filecache` (`mimepart`,`mimetype`,`mtime`,`size`,`etag`,`storage_mtime`,`permissions`,`parent`,`checksum`,`path_hash`,`path`,`name`,`storage`) SELECT ?,?,?,?,?,?,?,?,?,?,?,?,? FROM `oc_filecache` WHERE `storage` = ? AND `path_hash` = ? HAVING COUNT(*) = 0",["1","2",1535903341,-1,"5b8c066d7aff4",1535903341,31,4862,"","93e1a7c9b5110f39f11264535a9be0f9","uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252",3,3,"93e1a7c9b5110f39f11264535a9be0f9"],[]]},{"file":"\/var\/www\/nextcloud\/lib\/private\/DB\/Adapter.php","line":114,"function":"executeUpdate","class":"OC\\DB\\Connection","type":"->","args":["INSERT INTO `oc_filecache` (`mimepart`,`mimetype`,`mtime`,`size`,`etag`,`storage_mtime`,`permissions`,`parent`,`checksum`,`path_hash`,`path`,`name`,`storage`) SELECT ?,?,?,?,?,?,?,?,?,?,?,?,? FROM `oc_filecache` WHERE `storage` = ? AND `path_hash` = ? HAVING COUNT(*) = 0",["1","2",1535903341,-1,"5b8c066d7aff4",1535903341,31,4862,"","93e1a7c9b5110f39f11264535a9be0f9","uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252",3,3,"93e1a7c9b5110f39f11264535a9be0f9"]]},{"file":"\/var\/www\/nextcloud\/lib\/private\/DB\/Connection.php","line":254,"function":"insertIfNotExist","class":"OC\\DB\\Adapter","type":"->","args":["*PREFIX*filecache",{"mimepart":"1","mimetype":"2","mtime":1535903341,"size":-1,"etag":"5b8c066d7aff4","storage_mtime":1535903341,"permissions":31,"parent":4862,"checksum":"","path_hash":"93e1a7c9b5110f39f11264535a9be0f9","path":"uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","name":"web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","storage":3},["storage","path_hash"]]},{"file":"\/var\/www\/nextcloud\/lib\/private\/Files\/Cache\/Cache.php","line":272,"function":"insertIfNotExist","class":"OC\\DB\\Connection","type":"->","args":["*PREFIX*filecache",{"mimepart":"1","mimetype":"2","mtime":1535903341,"size":-1,"etag":"5b8c066d7aff4","storage_mtime":1535903341,"permissions":31,"parent":4862,"checksum":"","path_hash":"93e1a7c9b5110f39f11264535a9be0f9","path":"uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","name":"web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","storage":3},["storage","path_hash"]]},{"file":"\/var\/www\/nextcloud\/lib\/private\/Files\/Cache\/Cache.php","line":229,"function":"insert","class":"OC\\Files\\Cache\\Cache","type":"->","args":["uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252",{"mimetype":"httpd\/unix-directory","mtime":1535903341,"size":-1,"etag":"5b8c066d7aff4","storage_mtime":1535903341,"permissions":31,"parent":4862,"checksum":"","path":"uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252","name":"web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252"}]},{"file":"\/var\/www\/nextcloud\/lib\/private\/Files\/Cache\/Scanner.php","line":292,"function":"put","class":"OC\\Files\\Cache\\Cache","type":"->","args":["uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252",{"mimetype":"httpd\/unix-directory","mtime":1535903341,"size":-1,"etag":"5b8c066d7aff4","storage_mtime":1535903341,"permissions":31,"parent":4862,"checksum":""}]},{"file":"\/var\/www\/nextcloud\/lib\/private\/Files\/Cache\/Scanner.php","line":221,"function":"addToCache","class":"OC\\Files\\Cache\\Scanner","type":"->","args":["uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252",{"mimetype":"httpd\/unix-directory","mtime":1535903341,"size":-1,"etag":"5b8c066d7aff4","storage_mtime":1535903341,"permissions":31,"parent":4862,"checksum":""},-1]},{"file":"\/var\/www\/nextcloud\/lib\/private\/Files\/Cache\/Scanner.php","line":336,"function":"scanFile","class":"OC\\Files\\Cache\\Scanner","type":"->","args":["uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252",3,4862,false,false]},{"file":"\/var\/www\/nextcloud\/lib\/private\/Files\/Cache\/Updater.php","line":124,"function":"scan","class":"OC\\Files\\Cache\\Scanner","type":"->","args":["uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252",false,3,false]},{"file":"\/var\/www\/nextcloud\/lib\/private\/Files\/View.php","line":320,"function":"update","class":"OC\\Files\\Cache\\Updater","type":"->","args":["uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252",1535903341]},{"file":"\/var\/www\/nextcloud\/lib\/private\/Files\/View.php","line":1161,"function":"writeUpdate","class":"OC\\Files\\View","type":"->","args":[{"cache":null,"scanner":{"__class__":"OC\\Files\\Cache\\Scanner"},"watcher":null,"propagator":null,"updater":{"__class__":"OC\\Files\\Cache\\Updater"},"__class__":"OCA\\Files_Trashbin\\Storage"},"uploads\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252"]},{"file":"\/var\/www\/nextcloud\/lib\/private\/Files\/View.php","line":268,"function":"basicOperation","class":"OC\\Files\\View","type":"->","args":["mkdir","\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252",["create","write"]]},{"file":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Connector\/Sabre\/Directory.php","line":189,"function":"mkdir","class":"OC\\Files\\View","type":"->","args":["\/\/web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252"]},{"file":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Upload\/UploadHome.php","line":47,"function":"createDirectory","class":"OCA\\DAV\\Connector\\Sabre\\Directory","type":"->","args":["web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252"]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":1210,"function":"createDirectory","class":"OCA\\DAV\\Upload\\UploadHome","type":"->","args":["web-file-upload-7c0372dbee00e192c58129122f0224d9-1535903339252"]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/CorePlugin.php","line":594,"function":"createCollect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Screenshots

User uploads folder and server hangs

222

Scrolled down and NC updates thumbnails

3

nextcloud-bot commented 6 years ago

GitMate.io thinks possibly related issues are https://github.com/nextcloud/server/issues/10259 (Upload and Read shared folder), https://github.com/nextcloud/server/issues/2842 ([Files] Upload folders), https://github.com/nextcloud/server/issues/1173 (Upload to shared folder broken), https://github.com/nextcloud/server/issues/8997 (Data folder log file name), and https://github.com/nextcloud/server/issues/4604 (Upload via public folder fails).

MorrisJobke commented 6 years ago

As this seems to be a setup issue I would like to ask you to raise your question in the forums: https://help.nextcloud.com

Generally spoken the Webserver can't handle that much parallel requests and thus is overloaded. Configuring the web server to handle the right amount of requests is the tricky part here.

If you wish support with setup issues from Nextcloud GmbH we offer this as part of the Nextcloud subscription. Learn more about this at https://nextcloud.com/enterprise/