Ensure minimum kernel version for thin_ls #1411
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FYI @timstclair @vishh - lmk if something like this is ok |
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This is breaking nodes in our cluster atm. |
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Kernel bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1363776 |
Need to fix that 😄 |
| @@ -197,6 +208,80 @@ func startThinPoolWatcher(dockerInfo *dockertypes.Info) (*devicemapper.ThinPoolW | |||
| return thinPoolWatcher, nil | |||
| } | |||
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| func getKernelVersion() (string, error) { | |||
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This function already exists here: https://github.com/google/cadvisor/blob/master/machine/info.go#L142
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Ok cool, thanks!
On Thu, Aug 4, 2016 at 1:30 PM Tim St. Clair [email protected]
wrote:
In container/docker/factory.go
#1411 (comment):@@ -197,6 +208,80 @@ func startThinPoolWatcher(dockerInfo _dockertypes.Info) (_devicemapper.ThinPoolW
return thinPoolWatcher, nil
}+func getKernelVersion() (string, error) {
This function already exists here:
https://github.com/google/cadvisor/blob/master/machine/info.go#L142—
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@timstclair any other comments? |
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| if sem.EQ(minRhel7KernelVersion) { | ||
| // need to check release | ||
| releaseRE := regexp.MustCompile(`^[^-]+-([^.]+)\.`) |
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nit: since you're calling Atoi on it, make the match group digits (([0-9]+)).
Ensure that kernel >= 4.4.0 or RHEL/Centos 7 kernel >= 3.10.0-366 exists before starting the thin pool watcher. Prior versions have a bug in which reserving and releasing the metadata snapshot can cause thin pool corruption.
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Just one nit. All the regex parsing is unfortunate, but I won't block you on it. Fix the nit, squash, and I'll merge. |
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Done |
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You're fast! Waiting for tests to complete. |
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😄 I was in the middle of squashing when you posted the comment |
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Thanks for the review + merge! |
Automatic merge from submit-queue godep: cadvisor: bump to v0.23.9 ```release-note Update cadvisor to v0.23.9 to fix a problem where attempting to gather container filesystem usage statistics could result in corrupted devicemapper thin pool storage for Docker. ``` v0.23.9 fixes an important devicemapper issue xref google/cadvisor#1411 @ncdc @vishh @timstclair
Automatic merge from submit-queue godep: cadvisor: bump to v0.23.9 ```release-note Update cadvisor to v0.23.9 to fix a problem where attempting to gather container filesystem usage statistics could result in corrupted devicemapper thin pool storage for Docker. ``` v0.23.9 fixes an important devicemapper issue xref google/cadvisor#1411 @ncdc @vishh @timstclair
Ensure that kernel >= 4.4.0 or RHEL/Centos 7 kernel >= 3.10.0-366 exists before starting the thin
pool watcher. Prior versions have a bug in which reserving and releasing the metadata snapshot can
cause thin pool corruption.
Fixes #1409
@eparis @smarterclayton @derekwaynecarr @pmorie @sjenning