Sync Client Hangs at 0 B

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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:

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Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can :heart:

Nextcloud version (eg, 20.0.5): 24.0.8
Operating system and version (eg, Ubuntu 20.04): Ubuntu 22.04 Linux 5.15.0-56-generic x86_64
Apache or nginx version (eg, Apache 2.4.25): Unknown (Snap)
PHP version (eg, 7.4): 8.0.25

The issue you are facing:
Sync job hangs at 0 B as soon as it starts.

Is this the first time you’ve seen this error? (Y/N):
N

Steps to replicate it:

  1. Open Nextcloud.
  2. Wait for it to scan folder changes.
  3. Sync begins and hangs.

The output of your Nextcloud log in Admin > Logging:

Warning	activity	Failed sending activity email to user 'user1'.		2022-12-21T00:06:44-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:06:44-0500
Warning	activity	Failed sending activity email to user 'user2'.		2022-12-21T00:06:44-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:06:44-0500
Warning	activity	Failed sending activity email to user 'user3'.		2022-12-21T00:06:44-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:06:44-0500
Warning	activity	Failed sending activity email to user 'user4'.		2022-12-21T00:06:44-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:06:44-0500
Warning	activity	Failed sending activity email to user 'user5'.		2022-12-21T00:06:44-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:06:44-0500
Warning	activity	Failed sending activity email to user 'user1'.		2022-12-21T00:01:25-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:01:25-0500
Warning	activity	Failed sending activity email to user 'user2'.		2022-12-21T00:01:25-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:01:25-0500
Warning	activity	Failed sending activity email to user 'user3'.		2022-12-21T00:01:25-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:01:25-0500
Warning	activity	Failed sending activity email to user 'user4'.		2022-12-21T00:01:25-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:01:25-0500
Warning	activity	Failed sending activity email to user 'user5'.		2022-12-21T00:01:25-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-21T00:01:25-0500
Warning	activity	Failed sending activity email to user 'user1'.		2022-12-20T23:56:07-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:56:07-0500
Warning	activity	Failed sending activity email to user 'user2'.		2022-12-20T23:56:07-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:56:07-0500
Warning	activity	Failed sending activity email to user 'user3'.		2022-12-20T23:56:07-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:56:07-0500
Warning	activity	Failed sending activity email to user 'user4'.		2022-12-20T23:56:07-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:56:07-0500
Warning	activity	Failed sending activity email to user 'user5'.		2022-12-20T23:56:07-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:56:07-0500
Warning	activity	Failed sending activity email to user 'user1'.		2022-12-20T23:50:32-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:50:32-0500
Warning	activity	Failed sending activity email to user 'user2'.		2022-12-20T23:50:32-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:50:32-0500
Warning	activity	Failed sending activity email to user 'user3'.		2022-12-20T23:50:32-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:50:32-0500
Warning	activity	Failed sending activity email to user 'user4'.		2022-12-20T23:50:32-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:50:32-0500
Warning	activity	Failed sending activity email to user 'user5'.		2022-12-20T23:50:32-0500
Error	activity	Swift_TransportException: Connection could not be established with host 127.0.0.1 :stream_socket_client(): Unable to connect to ssl://127.0.0.1:25 (Connection refused)		2022-12-20T23:50:32-0500

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

<?php
$CONFIG = array (
  'apps_paths' => 
  array (
    0 => 
    array (
      'path' => '/snap/nextcloud/current/htdocs/apps',
      'url' => '/apps',
      'writable' => false,
    ),
    1 => 
    array (
      'path' => '/var/snap/nextcloud/current/nextcloud/extra-apps',
      'url' => '/extra-apps',
      'writable' => true,
    ),
  ),
  'supportedDatabases' => 
  array (
    0 => 'mysql',
  ),
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'memcache.local' => '\\OC\\Memcache\\Redis',
  'redis' => 
  array (
    'host' => '/tmp/sockets/redis.sock',
    'port' => 0,
  ),
  'log_type' => 'file',
  'logfile' => '/var/snap/nextcloud/current/logs/nextcloud.log',
  'logfilemode' => 416,
  'passwordsalt' => '',
  'secret' => '',
  'trusted_domains' => 
  array (
    0 => 'localhost',
    1 => 'mydomain',
  ),
  'datadirectory' => '/var/snap/nextcloud/common/nextcloud/data',
  'dbtype' => 'mysql',
  'version' => '24.0.8.2',
  'overwrite.cli.url' => 'http://localhost',
  'dbname' => '',
  'dbhost' => 'localhost:/tmp/sockets/mysql.sock',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => '',
  'dbpassword' => '',
  'installed' => true,
  'instanceid' => '',
  'mail_smtpmode' => 'smtp',
  'mail_smtpsecure' => 'ssl',
  'mail_sendmailmode' => 'smtp',
  'mail_smtpauth' => 1,
  'mail_smtpname' => '',
  'mail_smtppassword' => '',
  'default_phone_region' => 'US',
  'maintenance' => false,
  'loglevel' => 2,
);

The output of your Apache/nginx/system log in /var/log/____:

PASTE HERE

PASTE HERE


Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.

PASTE HERE