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Several plugins seem reloaded every time on running a container (io.containerd.{event.v1.publisher, internal.v1.shutdown}, ttrpc.v1.task, ttrpc.v1.pause}) #9637

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AkihiroSuda opened this issue Jan 15, 2024 · 2 comments · Fixed by #9646
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Several plugins seem reloaded every time on running a container (io.containerd.{event.v1.publisher, internal.v1.shutdown}, ttrpc.v1.task, ttrpc.v1.pause}) #9637

AkihiroSuda opened this issue Jan 15, 2024 · 2 comments · Fixed by #9646

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@AkihiroSuda
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Description

Several plugins seem reloaded every time on running a container.

The daemon prints the following logs on every sudo ctr run --rm docker.io/library/hello-world:latest foo:

time="2024-01-15T12:00:31.087339750+09:00" level=info msg="loading plugin \"io.containerd.event.v1.publisher\"..." runtime=io.containerd.runc.v2 type=io.containerd.event.v1
time="2024-01-15T12:00:31.087407173+09:00" level=info msg="loading plugin \"io.containerd.internal.v1.shutdown\"..." runtime=io.containerd.runc.v2 type=io.containerd.internal.v1
time="2024-01-15T12:00:31.087415505+09:00" level=info msg="loading plugin \"io.containerd.ttrpc.v1.task\"..." runtime=io.containerd.runc.v2 type=io.containerd.ttrpc.v1
time="2024-01-15T12:00:31.087546750+09:00" level=info msg="loading plugin \"io.containerd.ttrpc.v1.pause\"..." runtime=io.containerd.runc.v2 type=io.containerd.ttrpc.v1
INFO[2024-01-15T12:00:31.158206270+09:00] shim disconnected                             id=foo namespace=default
WARN[2024-01-15T12:00:31.158255326+09:00] cleaning up after shim disconnected           id=foo namespace=default
INFO[2024-01-15T12:00:31.158263169+09:00] cleaning up dead shim                         namespace=default

Steps to reproduce the issue

  1. sudo ctr run --rm docker.io/library/hello-world:latest foo

Describe the results you received and expected

Received: the plugins seem reloaded every time
Expected: should be loaded only once

What version of containerd are you using?

containerd github.com/containerd/containerd v1.7.12 71909c1

Any other relevant information

No response

Show configuration if it is related to CRI plugin.

No response
@AkihiroSuda AkihiroSuda changed the title Several plugins seem reloaded every time on running a container (`io.containerd.{event.v1.publisher, internal.v1.shutdown}, ttrpc.v1.task, ttrpc.v1.pause}) Several plugins seem reloaded every time on running a container (io.containerd.{event.v1.publisher, internal.v1.shutdown}, ttrpc.v1.task, ttrpc.v1.pause}) Jan 15, 2024
@AkihiroSuda AkihiroSuda mentioned this issue Jan 15, 2024
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@fuweid
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fuweid commented Jan 15, 2024

The plugin is loaded by shim process. Each runc shim will register them when they start.
It's not a bug.

containerd/runtime/v2/shim/shim.go

Line 402 in 71909c1

log.G(ctx).WithField("type", p.Type).Infof("loading plugin %q...", id)

@AkihiroSuda
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Can we reduce the amount of the logs?

@fuweid fuweid mentioned this issue Jan 16, 2024
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@thaJeztah thaJeztah mentioned this issue Jan 6, 2025
Merged
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runtime/v2: reduce shim plugin log fuweid/containerd
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@AkihiroSuda @fuweid