Failed to bind to json

Hi all, I noticed this message being spammed in my docker logs....

crowdsec  | 2025-09-29T13:30:02.980877960Z time="2025-09-29T15:30:02+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T13:45:02.987422639Z time="2025-09-29T15:45:02+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T14:00:02.994870485Z time="2025-09-29T16:00:02+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T14:15:03.005988061Z time="2025-09-29T16:15:03+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T14:30:03.015941612Z time="2025-09-29T16:30:03+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T14:45:03.023907445Z time="2025-09-29T16:45:03+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T15:00:03.031093964Z time="2025-09-29T17:00:03+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics

crowdsec  | 2025-09-29T13:30:02.980877960Z time="2025-09-29T15:30:02+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T13:45:02.987422639Z time="2025-09-29T15:45:02+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T14:00:02.994870485Z time="2025-09-29T16:00:02+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T14:15:03.005988061Z time="2025-09-29T16:15:03+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T14:30:03.015941612Z time="2025-09-29T16:30:03+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T14:45:03.023907445Z time="2025-09-29T16:45:03+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics
crowdsec  | 2025-09-29T15:00:03.031093964Z time="2025-09-29T17:00:03+02:00" level=error msg="Failed to bind json: json: cannot unmarshal object into Go struct field AllMetrics.remediation_components.metrics.items of type []*models.MetricsDetailItem" func=UsageMetrics

I honestly have no clue where to start....

25 Replies

CrowdSec•4d ago

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PintjesBierOP•4d ago

The error is sent in the 'main server' docker. It's a distributed setup, and the only bouncers I have active at the moment of errors are Openresty.

iiamloz•4d ago

So you have a central LAPI that openresty is talking too?

PintjesBierOP•4d ago

correct Sorry, my head is all over the place rn. Can't compose a decent sentence

iiamloz•4d ago

can you check the api logs? ohh wait your inside a container it should be the same stdout

PintjesBierOP•4d ago

When filtering on 'error' these are the only lines I see in the last 5000 logs Anything else I should look for?

iiamloz•4d ago

can you grep for "500" status code?

PintjesBierOP•4d ago

Can't find any

iiamloz•4d ago

which openresty / remediation version are you on? looking at the code we return 400 status code not 500

PintjesBierOP•4d ago

Latest normally, lemme check crowdsec-openresty-bouncer v1.1.1

PintjesBierOP•4d ago

192.168.202.4 & 192.168.202.5 are my openresty nodes

message.txt

iiamloz•4d ago

So we have a little bit of a dilema, we need to enable debug logs on openresty but to do so would need a restart and then the metrics its currently trying to push will be lost so will most likely resolve itself.

PintjesBierOP•4d ago

So you think a restart of the openrest node should fix the issue? 'Cause that server has been restarted sometimes in the last couple of days

iiamloz•4d ago

Yeah it should, unless the metrics are completely broken but the same system is within nginx and I have it running / havent encountered this.

PintjesBierOP•3d ago

I'll fully reboot both servers and follow it up... After rebooting the issue is back

blotus•3d ago

Can you add debug at the end of your error_log directive and restart openresty ? This will make the bouncer output debug logs, including the payload sent to LAPI for the metrics (it will spam quite a bit when a request is checked tho)

PintjesBierOP•3d ago

Like so right? In the openresty/nginx config:

    # Openresty log files
    error_log "/var/log/nginx/error.log" debug;
    access_log "/var/log/nginx/access.log";

    # Openresty log files
    error_log "/var/log/nginx/error.log" debug;
    access_log "/var/log/nginx/access.log";

blotus•3d ago

yes

PintjesBierOP•3d ago

Okay, I'm monitoring. Will wait for a new alert to trigger I suppose?

blotus•3d ago

Yes, the bouncer pushes its metrics every 15 minutes

PintjesBierOP•3d ago

message.txt

blotus•3d ago

and did you see the error in crowdsec logs at the same time ?

PintjesBierOP•3d ago

nope

PintjesBierOP•3d ago

All errors filtered out

message.txt

PintjesBierOP•19h ago

Any thoughts?

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Failed to bind to json

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