SSL_connect failed: (null) (RELAY_ERR_IO; cache.c:551)

[riasvdv]

Description

In our exception tracker, we're regularly getting the following exception: SSL_connect failed: (null) (RELAY_ERR_IO; cache.c:551)

Is there a way to see exactly how or why it failed?

Relay diagnostics

Relay Support => enabled
Relay Version => 0.6.8
Available cache => 160
Available serializers => php, json, igbinary, msgpack
Available compression => lzf, zstd, lz4
Binary UUID => 85974504-c02b-45d5-b507-650c8539b8a8
Git SHA => 5b490b90dc22ec28cf8f930286221ee196bbfd49
Allocator => relay
Build OS => Ubuntu 16.04.7 LTS
Architecture => x86_64
OpenSSL version => OpenSSL 1.1.1p  21 Jun 2022
License state => unknown
License memory cap => 0
License request id =>  
relay.enabled => false
relay.environment => development
relay.key =>  
relay.maxmemory => 0
relay.maxmemory_pct => 95
relay.eviction_policy => noeviction
relay.eviction_sample_keys => 128
relay.initial_readers => 128
relay.invalidation_poll_usec => 5
relay.pconnect_default => 1
relay.max_endpoint_dbs => 32
relay.loglevel => none
relay.logfile =>  

[riasvdv]

Seems like this was happening on servers that weren't on the latest version yet, I'll re-open if it happens again after updating them all