[Sks-devel] Constant 'add_keys_merge failed' errors

[PGP]

Hi All,

I am dealing with constant errors when SKS is syncing with peers:

> add_keys_merge failed: Eventloop.SigAlarm
> Key addition failed: Eventloop.SigAlarm

While SKS is syncing users can not look up key's on the server and have
to wait for an average of 60 sec before the eventloop.Sigalarm occurs.
This happens all the time (and sporadically it does actually succeed) :

Jun 10 16:33:05 pgp sks[12147]: 2019-06-10 16:33:05 Requesting 100
missing keys from <ADDR_INET [130.206.1.111]:11371>, starting with
6DF39B56121F703B2894C9537C6B977D
Jun 10 16:33:10 pgp sks[12147]: 2019-06-10 16:33:10 100 keys received
Jun 10 16:34:10 pgp sks[12146]: 2019-06-10 16:34:10 add_keys_merge
failed: Eventloop.SigAlarm
Jun 10 16:34:10 pgp sks[12146]: 2019-06-10 16:34:10 Key addition failed:
Eventloop.SigAlarm
Jun 10 16:34:10 pgp sks[12147]: 2019-06-10 16:34:10 Requesting 45
missing keys from <ADDR_INET [130.206.1.111]:11371>, starting with
CDF65A08CC77BF3BE16D28E03DED37F0
Jun 10 16:34:15 pgp sks[12147]: 2019-06-10 16:34:15 45 keys received
Jun 10 16:35:15 pgp sks[12146]: 2019-06-10 16:35:15 add_keys_merge
failed: Eventloop.SigAlarm
Jun 10 16:35:15 pgp sks[12146]: 2019-06-10 16:35:15 Key addition failed:
Eventloop.SigAlarm
Jun 10 16:38:52 pgp sks[12147]: 2019-06-10 16:38:52 245 hashes recovered
from <ADDR_INET [130.206.1.8]:11371>
Jun 10 16:38:56 pgp sks[12147]: 2019-06-10 16:38:56 Requesting 100
missing keys from <ADDR_INET [130.206.1.8]:11371>, starting with
012469610CE6097DB72E348F6510E0A1
Jun 10 16:38:59 pgp sks[12147]: 2019-06-10 16:38:59 100 keys received
Jun 10 16:39:59 pgp sks[12146]: 2019-06-10 16:39:59 add_keys_merge
failed: Eventloop.SigAlarm
Jun 10 16:39:59 pgp sks[12146]: 2019-06-10 16:39:59 Key addition failed:
Eventloop.SigAlarm
Jun 10 16:39:59 pgp sks[12147]: 2019-06-10 16:39:59 Requesting 100
missing keys from <ADDR_INET [130.206.1.8]:11371>, starting with
6DF39B56121F703B2894C9537C6B977D
Jun 10 16:40:05 pgp sks[12147]: 2019-06-10 16:40:05 100 keys received
Jun 10 16:41:05 pgp sks[12146]: 2019-06-10 16:41:05 add_keys_merge
failed: Eventloop.SigAlarm
Jun 10 16:41:05 pgp sks[12146]: 2019-06-10 16:41:05 Key addition failed:
Eventloop.SigAlarm
Jun 10 16:41:05 pgp sks[12147]: 2019-06-10 16:41:05 Requesting 45
missing keys from <ADDR_INET [130.206.1.8]:11371>, starting with
CDF65A08CC77BF3BE16D28E03DED37F0
Jun 10 16:41:07 pgp sks[12147]: 2019-06-10 16:41:07 45 keys received
Jun 10 16:42:07 pgp sks[12146]: 2019-06-10 16:42:07 add_keys_merge
failed: Eventloop.SigAlarm
Jun 10 16:42:07 pgp sks[12146]: 2019-06-10 16:42:07 Key addition failed:
Eventloop.SigAlarm

Tried to find a solution in the archives of this mailing-list but can't
find any proper solution.

So far i tried the following options in /etc/sks/sksconf:

#command_timeout:   600
#max_recover:       150

But the result is that users have to wait allot longer before the server
returns search results (so i disabled it again). Can someone please
advice how i can best tackle this problem?

Greetings,
Melvin