#Write error saving DB on disk: No space left on device

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Pavan Varyani

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Jul 12, 2022, 10:55:56 AM7/12/22
to Redis DB
Hi,
I see some intermittent errors in "/var/log/redis/redis-server.log"

856881:C 11 Jul 2022 20:13:41.149 # Write error saving DB6619:M 11 Jul 2022 20:13:41.251 # Background saving error
6619:M 11 Jul 2022 20:13:47.050 * 100 changes in 300 seconds. Saving...
6619:M 11 Jul 2022 20:13:47.052 * Background saving started by pid 856957
856957:C 11 Jul 2022 20:13:47.238 # Write error saving DB on disk: No space left on device

the size of dump.rdp  is 3.8MB which is located in /var/lib/redis

performing a df -h /  the output  is :
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda2        49G   19G   28G  40% /

We see available memory is 28GB, am is missing something here?

Anthony LaTorre

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Jul 15, 2022, 1:56:30 PM7/15/22
to redi...@googlegroups.com
Could be you've run out of inodes. Do you have a lot of very small
files on your disk? You can check with:

$ df -i

I think

Tony
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Kunal Gangakhedkar

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Jul 17, 2022, 3:54:07 AM7/17/22
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Another possibility could be a different partition mounted on /var?
Can you check for "df -ah /var"?

Some linux distributions create separate partitions for /usr, /var etc. during installation.

Kunal


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