# Silencer not matching or disabling notification

**URL:** <https://community.netdata.cloud/t/silencer-not-matching-or-disabling-notification/2705>\
**Category:** Help\
**Tags:** agent, notifications\
**Created:** [March 27, 2022, 9:52pm UTC](https://community.netdata.cloud/t/silencer-not-matching-or-disabling-notification/2705 "2022-03-27T21:52:34Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![csmith](https://avatars.discourse-cdn.com/v4/letter/c/74df32/32.png) [@csmith](https://community.netdata.cloud/u/csmith)\
**Post date:** [March 27, 2022, 9:52pm UTC](https://community.netdata.cloud/t/silencer-not-matching-or-disabling-notification/2705/1 "2022-03-27T21:52:34Z")

</div>

I have a server that is doing a `fstrim` command every night, and during that time, I want to silence the disk alerts.

So I’m adding silencers:

```auto
Alarms list: {
    "all": false,
    "type": "SILENCE",
    "silencers": [
        {
            "alarm": "disk_util.nvme3n1"
        },
        {
            "context": "disk_util.nvme3n1.10min_disk_utilization"
        }
    ]
}

```

(I’m adding both an alarm and a context silencer, just trying to get it to match _something_, I’ve tried other names but I can’t get anything to work).

and this is the alarm that’s still going off:

```auto
Alarms list: {
    "hostname": "fqdn",
    "latest_alarm_log_unique_id": 1647905719,
    "status": true,
    "now": 1648377809,
    "alarms": {
        "disk_util.nvme3n1.10min_disk_utilization": {
            "id": 1647905528,
            "name": "10min_disk_utilization",
            "chart": "disk_util.nvme3n1",
            "family": "nvme3n1",
            "active": true,
            "disabled": false,
            "silenced": false,
            "exec": "/usr/libexec/netdata/plugins.d/alarm-notify.sh",
            "recipient": "sysadmin",
            "source": "130@/etc/netdata/health.d/disks.conf",
            "units": "%",
            "info": "the percentage of time the disk was busy, during the last 10 minutes",
            "status": "WARNING",
            "last_status_change": 1648376654,
            "last_updated": 1648377794,
            "next_update": 1648377854,
            "update_every": 60,
            "delay_up_duration": 0,
            "delay_down_duration": 900,
            "delay_max_duration": 3600,
            "delay_multiplier": 1.200000,
            "delay": 0,
            "delay_up_to_timestamp": 1648376654,
            "warn_repeat_every": "0",
            "crit_repeat_every": "0",
            "value_string": "87%",
            "last_repeat": "0",
            "db_after": 1648377195,
            "db_before": 1648377794,
            "lookup_method": "average",
            "lookup_after": -600,
            "lookup_before": 0,
            "lookup_options": "unaligned",
            "warn":"$this &gt; $green * (($status &gt;= $WARNING) ? (0.7) : (1))",
            "warn_parsed":"(${this} &gt; (${green} * ((${status} &gt;= ${WARNING}) ? 0.7 : 1)))",
            "crit":"$this &gt; $red * (($status == $CRITICAL) ? (0.7) : (1))",
            "crit_parsed":"(${this} &gt; (${red} * ((${status} == ${CRITICAL}) ? 0.7 : 1)))",
            "green":90,
            "red":98,
            "value":87.0127922
        }
    }
}

```

it’s still saying ‘silenced: false’, and still sending a notification. I know it’s going to be something simple, but what am I missing?

Also, as far as I can tell, you can’t see in the GUI if something is silenced, is that right? That would be really handy to see if this would work properly.

I’m using the netdata docker image : netdata:v1.29.3 .

Thanks,  
Chris.

---

<div class="post-metadata">

**Author:** ![Tasos\_Katsoulas](https://yyz1.discourse-cdn.com/flex029/user_avatar/community.netdata.cloud/tasos_katsoulas/32/1344_2.png) [@Tasos\_Katsoulas](https://community.netdata.cloud/u/Tasos_Katsoulas)\
**Post date:** [March 29, 2022, 6:07pm UTC](https://community.netdata.cloud/t/silencer-not-matching-or-disabling-notification/2705/3 "2022-03-29T18:07:59Z")

</div>

Hi there,

Let me start from the beginning

> I have a server that is doing a `fstrim` command every night, and during that time, I want to silence the disk alerts.

For your issue the ideal solution would be: in a specific time frame the Agent to silence these alerts (the disk ones). In your version of the Agent (and in the current) you can’t silence an alert for a period of a day. If you want this you must ask for a feature request in [Sign in to GitHub · GitHub](https://github.com/netdata/netdata/issues/new/choose) in the GH repo.

Now a workaround to silence (forever disk alerts is)

Option 1 (easy way):

Set the particular alert (by default: `/etc/netdata/health/health.d/specific_alert_conf_file.conf` to `silent`

> **[Configure alerts | Learn Netdata](https://learn.netdata.cloud/docs/alerting/health-configuration-reference)**
>
> Netdata's health watchdog is highly configurable, with support for dynamic thresholds, hysteresis, alert templates, and

Option 2 (a little bit more advance):  
Use the Health API [Health API Calls | Learn Netdata](https://learn.netdata.cloud/docs/agent/web/api/health)

Let’s try the Option 1 and see if it fixes your issue.

> Also, as far as I can tell, you can’t see in the GUI if something is silenced, is that right? That would be really handy to see if this would work properly.

For this, you can also make a feature request.

 ![image](https://canada1.discourse-cdn.com/flex029/uploads/netdata2/original/2X/3/32e7fa4a259ecde277922f7fd6e2cbdf86a95bc3.png)

For example this alert is in silent (the Agent respects it) but you still see `role:sysadmin` or and yu can’t understand that this alert is in silent.

---

<div class="post-metadata">

**Author:** ![csmith](https://avatars.discourse-cdn.com/v4/letter/c/74df32/32.png) [@csmith](https://community.netdata.cloud/u/csmith)\
**Post date:** [March 29, 2022, 11:10pm UTC](https://community.netdata.cloud/t/silencer-not-matching-or-disabling-notification/2705/4 "2022-03-29T23:10:33Z")

</div>

Hi,

Thanks for the reply.

I am trying to use the API to temporarily silence the alert, but it’s not matching, and I’m still getting notifications about the alert.

Am I using the wrong name or wrong flags when I do this?

The details of the alert are in my original post.

```auto
    "alarms": {
        "disk_util.nvme3n1.10min_disk_utilization": {
            "id": 1647905528,
            "name": "10min_disk_utilization",
            "chart": "disk_util.nvme3n1",

```

should I be using context = `disk_util.nvme3n1.10min_disk_utilization` or alarm = `disk_util.nvme3n1.10min_disk_utilization` or something else?

Thanks,  
Chris.

---

<div class="post-metadata">

**Author:** ![Tasos\_Katsoulas](https://yyz1.discourse-cdn.com/flex029/user_avatar/community.netdata.cloud/tasos_katsoulas/32/1344_2.png) [@Tasos\_Katsoulas](https://community.netdata.cloud/u/Tasos_Katsoulas)\
**Post date:** [March 30, 2022, 12:07pm UTC](https://community.netdata.cloud/t/silencer-not-matching-or-disabling-notification/2705/5 "2022-03-30T12:07:06Z")

</div>

Try the following:

```auto
curl "http://node:19999/api/v1/manage/health?cmd=SILENCE&context=10min_disk_utilization" -H "X-Auth-Token: <YOUR_TOKEN>"

```

This will silence the `10min_disk_utilization` alerts for all disks. I am not sure if you could just silence this alert only for one drive (e.g the nvme3n1)

Let me know if this helped your situation.  
Tasos.

---

<div class="post-metadata">

**Author:** ![csmith](https://avatars.discourse-cdn.com/v4/letter/c/74df32/32.png) [@csmith](https://community.netdata.cloud/u/csmith)\
**Post date:** [April 13, 2022, 12:23am UTC](https://community.netdata.cloud/t/silencer-not-matching-or-disabling-notification/2705/6 "2022-04-13T00:23:29Z")

</div>

Thanks for the suggestion.

I eventually did

```auto
curl "http://node:19999/api/v1/manage/health?cmd=SILENCE&alarm=10min_disk_utilization"

```

which seems to have worked (for a couple of weeks).

I don’t think using a `context` (instead of an `alarm`) matched and worked.