Error message but thing seem to work after upgrade to 18.0.3

brinycoolie · April 16, 2020, 8:14pm

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Nextcloud version (eg, 12.0.2): 18.0.3
Operating system and version (eg, Ubuntu 17.04):Ubuntu 19.10
Apache or nginx version (eg, Apache 2.4.25): 2.4
PHP version (eg, 7.1):7.3.11

The issue you are facing:
I got this error message when i started a security scan ( just for grins) and I saw this. The system appears to be working OK at this time. This was not present in 18.0.2

It was not possible to execute the cron job via CLI. The following technical errors have appeared:

Your data directory is invalid Ensure there is a file called “.ocdata” in the root of the data directory.
Cannot create “data” directory This can usually be fixed by giving the webserver write access to the root directory. See https://docs.nextcloud.com/server/18/go.php?to=admin-dir_permissions

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

Steps to replicate it:

run a NC security scan

The output of your Nextcloud log in Admin > Logging:

Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-16T07:50:11-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82		2020-04-15T08:23:47-0400
Error	PHP	fseek(): stream does not support seeking at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#82

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

brian@beetle-1:/beetle-pool/exports/brian$ ls -al
total 486
drwxr-xr-x   28 brian    brian      28 Jan 19 12:20 .
drwxr-xr-x    4 brian    brian       4 Dec 21 16:44 ..
drwxrwxr-x    2 brian    brian       2 Dec  8 13:25 Browser-Workshop
drwxr-xr-x 1813 brian    brian    1817 Jan 11 14:01 calibre
drwxrwxr-x    2 brian    brian       2 Dec  8 13:25 Calibre
drwxrwxr-x    2 brian    brian       2 Dec  8 13:25 Contacts-Workshop
drwx------    2 brian    brian       2 Dec 22 15:24 css-works
drwxrwxr-x    2 brian    brian       2 Dec  8 13:25 Document-Workshop
drwxrwxr-x    2 brian    brian       2 Dec  8 13:25 Email-Workshop
drwxrwxr-x    2 brian    brian       2 Dec  8 13:25 Finance-Workshop
drwx------    2 brian    brian     826 Apr 16 11:23 freya-backups
drwx------    4 brian    brian       4 Jan  5 19:24 freya-home-archive
drwxrwxr-x   21 brian    spamd      24 Oct  2  2019 genealogy
drwxrwxr-x    2 brian    brian       2 Dec  8 13:25 Genealogy
drwxrwxr-x    2 brian    brian       2 Dec  8 13:25 Genealogy-Workshop
drwxrwxr-x  345 brian    brian     345 Dec  6  2014 Music-Workshop
drwxrwx---   10 www-data www-data   16 Jan 11 14:52 nextcloud-data
drwx------    2 brian    brian       2 Dec 22 15:24 OCR-Workshop
drwxrwxr-x   40 brian    brian      43 Apr 19  2019 Photo-Workshop
drwxrwxr-x   11 brian    spamd      11 Apr  8  2018 reference-works
drwx------    2 brian    brian       2 Dec 22 15:24 Rita-Photos
drwxrwxrwx    2 brian    spamd       2 Jan 19 11:54 sf_hotswap3
drwxrwxrwx    2 brian    spamd       2 Jan 19 11:54 sf_media
drwxrwxrwx    2 brian    spamd       2 Jan 19 11:54 sf_samba_share
drwxrwxrwx    2 brian    spamd       2 Jan 19 11:54 sf_space1
drwxrwxrwx    2 brian    spamd       2 Jan 19 11:54 sf_space2
drwxrwxrwx    2 brian    spamd       2 Jan 19 11:54 sf_space3
drwxrwxrwx    4 brian    spamd       4 Dec 21 14:20 VirtualBox-VM


 GNU nano 4.3                              /var/www/nextcloud/config/config.php                                        
<?php
$CONFIG = array (
  'instanceid' => 'oclhmkwv91zl',
  'passwordsalt' => XXXXXXXXXXXX
  'secret' =>XXXXXXXXXXXXX,
  'trusted_domains' => 
  array (
    0 => '192.168.1.235',
    2 => 'XXXXXXXXX',
  ),
  'datadirectory' => '/beetle-pool/exports/brian/nextcloud-data',
  'dbtype' => 'pgsql',
  'version' => '18.0.3.0',
  'overwrite.cli.url' => 'http://192.168.1.235/nextcloud',
  'dbname' => 'nextcloud',
  'dbhost' => 'localhost:5432',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'dbuser' => 'nc_user',
  'dbpassword' => 'XXXXXXXXXXXXX',
  'installed' => true,
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 2,
  'mail_from_address' => 'brian',
  'mail_smtpmode' => 'sendmail',
  'mail_sendmailmode' => 'pipe',
  'mail_domain' => 'isocooley.com',
  'mail_smtpauthtype' => 'LOGIN',
  'mail_smtphost' => 'localhost',
  'mail_smtpport' => '465',
  'app_install_overwrite' => 
  array (
    0 => 'dashboard',
    1 => 'folderplayer',
    'memcache.local' => '\\OC\\Memcache\\APCu',
    'memcache.locking' => '\\OC\\Memcache\\Redis',
    'redis' => 
    array (
      'host' => '/var/run/redis/redis.sock',
      'port' => 0,
      'timeout' => 0,
      'password' => '',
      'dbindex' => 0,
    ),
  ),
  'updater.secret' => 'XXXXXXXXXXX',
);

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

PASTE HERE

brinycoolie · May 17, 2020, 2:27pm

[Solved] removing the Redis memcache section of the config.php seems to have fixed the issue. I suspect a negative interaction between Redis and ZFS native cache management. In fact there seems to be no penalty for removing the Redis configuration.

Note: The system was working well but the output of a NC security scan gave the warning.

I recommend some study of the relationship between these two aspects.