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Incorrect or missing information? Known issues
These are known issues regarding the working of SABnzbd in its environment.
They are not registered as bugs of SABnzbd, because we cannot solve them.
It's more an incompatibility with other systems or outright bugs in these other systems.
- Size limit
- Hangup of post-processing
- Decoder failure: Out of memory
- Unreliable Usenet servers
- macOS and foreign characters
- Linux and foreign characters
- Files remain in Watched Folder
- Instability on macOS
- Memory usage
- Incompatible firewalls
- Blocked email
- Mounting external drives and network shares
- Memory leaks
- Logging stops
To prevent unexpectedly large NZBs from eating your quotum you can set the option "size_limit" in "Config->Special".
Any NZB larger than this size will be set to paused and get a low priority.
Hangup of post-processing
When PAR2 or UNRAR hang up, you should never just stop SABnzbd.
Instead use your operating system's task manager to stop the PAr2 or UNRAR program.
Forcing SABnzbd to quit may damage your queues.
If you keep having trouble with par2 multicore you can disable it in Config->Switches.
This will force the use of the old and tried, but slower par2-classic program.
Decoder failure: Out of memory
If you get the
Decoder failure: Out of memory error, try the following:
- Reduce Article Cache to
- If you run SABnzbd as a Windows Service, try running it not as a Service but regular. When SABnzbd is used as a service, Windows can unpredictably limit the allocation of memory to SABnzbd when it thinks it's usage is too high.
Unreliable Usenet servers
Some Usenet servers have intermittent login (or other) problems.
For these, the server blocking method is not very favorable.
There is an "Special" option "no_penalties" which, when set to 1, will limit blocks to 1 minute
(No, 2 doesn't mean 2 minutes).
macOS and foreign characters
On macOS you may encounter downloaded files with foreign characters (e.g. é and ä).
The par2 repair may fail when the files were created on a Windows system.
The problem is caused by the PAR2 utility and we cannot fix this now.
This does not apply to files inside RAR files.
Linux and foreign characters
On Linux when you download files they may have the wrong character encoding.
You will see this only when downloaded files contain accented characters.
You need to fix it yourself by running the convmv utility (available for most Linux platforms).
Files remain in Watched Folder
The "Watched Folder" sometimes fails to delete the NZB files it has processed.
This happens when other software still accesses these files.
Some third-party utilities supporting SABnzbd are known to do this.
We cannot solve this problem, because the Operating System (read Windows) prevents the removal.
SABnzbd does try about 10 times with 5 second intervals, but after that it gives up.
The NZB will not be processed again, unless changed or overwritten.
Instability on macOS
A few people complained about long-term stability of SABnzbd on macOS Snow Leopard and Lion.
We don't know the real cause, but the same people have reported success
when they disable SABnzbd's icon in the top menu.
Config->Special, item "osx_menu".
Memory usage can sometimes have high peaks.
This makes using SABnzbd on very low memory systems (eg a SAN device) a challenge.
Your total system memory should be above 256 MByte (assuming a Linux variant is used).
When SABnzbd cannot send notification emails, check your virus scanner, firewall or security suite.
It may be blocking outgoing email.
Mounting external drives and network shares
When you are using external drives or network shares on macOS or Linux make sure that the drives are mounted.
The operating system will simply redirect your files to alternative locations.
You may have trouble finding the files when mounting the drive later.
Some users have complained about ever growing memory use by SABnzbd.
So far we have not been able to reproduce this behaviour, but that doesn't mean it can never happen.
We would like to receive information on how to reproduce this problem.