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kubectl get pods --sort-by=status makes kubectl crash (error not handled) #993

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cig0 opened this issue Dec 15, 2020 · 5 comments
Closed

kubectl get pods --sort-by=status makes kubectl crash (error not handled) #993

cig0 opened this issue Dec 15, 2020 · 5 comments
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kind/bug Categorizes issue or PR as related to a bug. needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one.

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@cig0
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cig0 commented Dec 15, 2020

What happened:
Kubectl crashes with F1215 09:51:35.632353 79162 sorter.go:360] Field {.status} in [][][]reflect.Value is an unsortable type: interface, err: unsortable type: map[string]interface {}

What you expected to happen:
Get a list of pods ordered by STATUS (I now know there're other ways to do this)

How to reproduce it (as minimally and precisely as possible):
Run the command in the title of this issue.

Anything else we need to know?:
Yes, following is the crash output messages:

% kubectl get pods --sort-by=status
F1215 09:51:35.632353   79162 sorter.go:360] Field {.status} in [][][]reflect.Value is an unsortable type: interface, err: unsortable type: map[string]interface {}
goroutine 1 [running]:
k8s.io/kubernetes/vendor/k8s.io/klog/v2.stacks(0xc00012e001, 0xc000094300, 0xa4, 0xf6)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:996 +0xb9
k8s.io/kubernetes/vendor/k8s.io/klog/v2.(*loggingT).output(0x391fb20, 0xc000000003, 0x0, 0x0, 0xc0001d82a0, 0x36f2939, 0x9, 0x168, 0x0)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:945 +0x191
k8s.io/kubernetes/vendor/k8s.io/klog/v2.(*loggingT).printf(0x391fb20, 0x3, 0x0, 0x0, 0x28684cc, 0x31, 0xc0009ab6d8, 0x4, 0x4)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:733 +0x17a
k8s.io/kubernetes/vendor/k8s.io/klog/v2.Fatalf(...)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:1456
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*TableSorter).Less(0xc000b2f920, 0x0, 0x9, 0xc000b2f920)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/sorter.go:360 +0x2d5
sort.medianOfThree(0x2aa0580, 0xc000b2f920, 0x0, 0x9, 0x12)
	/usr/local/Cellar/go/1.15.4/libexec/src/sort/sort.go:76 +0x49
sort.doPivot(0x2aa0580, 0xc000b2f920, 0x0, 0x13, 0xc000b2d860, 0xc0001e81a0)
	/usr/local/Cellar/go/1.15.4/libexec/src/sort/sort.go:105 +0xa5
sort.quickSort(0x2aa0580, 0xc000b2f920, 0x0, 0x13, 0xa)
	/usr/local/Cellar/go/1.15.4/libexec/src/sort/sort.go:190 +0x9a
sort.Sort(0x2aa0580, 0xc000b2f920)
	/usr/local/Cellar/go/1.15.4/libexec/src/sort/sort.go:218 +0x7a
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*TableSorter).Sort(...)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/sorter.go:366
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*SortingPrinter).PrintObj(0xc000656c30, 0x2a71a40, 0xc00019ed80, 0x2a64b20, 0xc00048f080, 0x0, 0xc00048f080)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/sorter.go:56 +0x20b
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*TablePrinter).PrintObj(0xc00063dfc0, 0x2a71b80, 0xc0003d4460, 0x2a64b20, 0xc00048f080, 0xc000447060, 0xc0000abd0d)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/table_printer.go:41 +0x1b7
k8s.io/kubernetes/vendor/k8s.io/cli-runtime/pkg/printers.ResourcePrinterFunc.PrintObj(0xc000183ba0, 0x2a71b80, 0xc0003d4460, 0x2a64b20, 0xc00048f080, 0x0, 0x20)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/cli-runtime/pkg/printers/interface.go:31 +0x4e
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*GetOptions).Run(0xc00046c1e0, 0x2abf540, 0xc000392f30, 0xc0004c9600, 0xc000129fa0, 0x1, 0x2, 0x0, 0x0)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/get.go:579 +0x824
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.NewCmdGet.func1(0xc0004c9600, 0xc000129fa0, 0x1, 0x2)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/get.go:167 +0x135
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).execute(0xc0004c9600, 0xc000129f80, 0x2, 0x2, 0xc0004c9600, 0xc000129f80)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:846 +0x2c2
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc00043b600, 0xc000130120, 0xc000136000, 0x4)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:950 +0x375
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).Execute(...)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:887
main.main()
	_output/local/go/src/k8s.io/kubernetes/cmd/kubectl/kubectl.go:49 +0x21d

goroutine 19 [chan receive]:
k8s.io/kubernetes/vendor/k8s.io/klog/v2.(*loggingT).flushDaemon(0x391fb20)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:1131 +0x8b
created by k8s.io/kubernetes/vendor/k8s.io/klog/v2.init.0
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:416 +0xd8

goroutine 6 [select]:
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.BackoffUntil(0x290f148, 0x2a65100, 0xc0001e6000, 0x1, 0xc0001080c0)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:167 +0x149
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil(0x290f148, 0x12a05f200, 0x0, 0x1, 0xc0001080c0)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133 +0x98
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.Until(0x290f148, 0x12a05f200, 0xc0001080c0)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:90 +0x4d
created by k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/util/logs.InitLogs
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/util/logs/logs.go:51 +0x96

goroutine 148 [IO wait]:
internal/poll.runtime_pollWait(0x45ab1e0, 0x72, 0x2a68400)
	/usr/local/Cellar/go/1.15.4/libexec/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc00042ee18, 0x72, 0x2a68400, 0x372ab28, 0x0)
	/usr/local/Cellar/go/1.15.4/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/Cellar/go/1.15.4/libexec/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00042ee00, 0xc0007d6000, 0xed60, 0xed60, 0x0, 0x0, 0x0)
	/usr/local/Cellar/go/1.15.4/libexec/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc00042ee00, 0xc0007d6000, 0xed60, 0xed60, 0x203000, 0x125929b, 0xc00096c160)
	/usr/local/Cellar/go/1.15.4/libexec/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000010088, 0xc0007d6000, 0xed60, 0xed60, 0x0, 0x0, 0x0)
	/usr/local/Cellar/go/1.15.4/libexec/src/net/net.go:182 +0x8e
crypto/tls.(*atLeastReader).Read(0xc0004000a0, 0xc0007d6000, 0xed60, 0xed60, 0x1a, 0x8c8c, 0xc0009b5710)
	/usr/local/Cellar/go/1.15.4/libexec/src/crypto/tls/conn.go:779 +0x62
bytes.(*Buffer).ReadFrom(0xc00096c280, 0x2a63b00, 0xc0004000a0, 0x100d605, 0x2620aa0, 0x279e020)
	/usr/local/Cellar/go/1.15.4/libexec/src/bytes/buffer.go:204 +0xb1
crypto/tls.(*Conn).readFromUntil(0xc00096c000, 0x452c3b8, 0xc000010088, 0x5, 0xc000010088, 0x9)
	/usr/local/Cellar/go/1.15.4/libexec/src/crypto/tls/conn.go:801 +0xf3
crypto/tls.(*Conn).readRecordOrCCS(0xc00096c000, 0x0, 0x0, 0xc0009b5d18)
	/usr/local/Cellar/go/1.15.4/libexec/src/crypto/tls/conn.go:608 +0x115
crypto/tls.(*Conn).readRecord(...)
	/usr/local/Cellar/go/1.15.4/libexec/src/crypto/tls/conn.go:576
crypto/tls.(*Conn).Read(0xc00096c000, 0xc0000fc000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
	/usr/local/Cellar/go/1.15.4/libexec/src/crypto/tls/conn.go:1252 +0x15f
bufio.(*Reader).Read(0xc0001bbc20, 0xc000026038, 0x9, 0x9, 0xc0009b5d18, 0x2910000, 0x1584eeb)
	/usr/local/Cellar/go/1.15.4/libexec/src/bufio/bufio.go:227 +0x222
io.ReadAtLeast(0x2a63920, 0xc0001bbc20, 0xc000026038, 0x9, 0x9, 0x9, 0xc000118050, 0x0, 0x2a63d20)
	/usr/local/Cellar/go/1.15.4/libexec/src/io/io.go:314 +0x87
io.ReadFull(...)
	/usr/local/Cellar/go/1.15.4/libexec/src/io/io.go:333
k8s.io/kubernetes/vendor/golang.org/x/net/http2.readFrameHeader(0xc000026038, 0x9, 0x9, 0x2a63920, 0xc0001bbc20, 0x0, 0x0, 0xc00058f2f0, 0x0)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/frame.go:237 +0x89
k8s.io/kubernetes/vendor/golang.org/x/net/http2.(*Framer).ReadFrame(0xc000026000, 0xc00058f2f0, 0x0, 0x0, 0x0)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/frame.go:492 +0xa5
k8s.io/kubernetes/vendor/golang.org/x/net/http2.(*clientConnReadLoop).run(0xc0009b5fa8, 0x0, 0x0)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/transport.go:1794 +0xd8
k8s.io/kubernetes/vendor/golang.org/x/net/http2.(*ClientConn).readLoop(0xc0001fe600)
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/transport.go:1716 +0x6f
created by k8s.io/kubernetes/vendor/golang.org/x/net/http2.(*Transport).newClientConn
	/private/tmp/kubernetes-cli-20201112-92726-hdc9kn/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/transport.go:695 +0x66e

Environment:

  • Kubernetes client and server versions (use kubectl version):
GitCommit:"d360454c9bcd1634cf4cc52d1867af5491dc9c5f", GitTreeState:"clean", BuildDate:"2020-11-12T01:09:16Z", GoVersion:"go1.15.4", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"16+", GitVersion:"v1.16.15-gke.4300", GitCommit:"7ed5ddc0e67cb68296994f0b754cec45450d6a64", GitTreeState:"clean", BuildDate:"2020-10-28T09:23:22Z", GoVersion:"go1.13.15b4", Compiler:"gc", Platform:"linux/amd64"}
  • Cloud provider or hardware configuration: GKE
  • OS (e.g: cat /etc/os-release): macOS and GNU+Linux
@cig0 cig0 added the kind/bug Categorizes issue or PR as related to a bug. label Dec 15, 2020
@k8s-ci-robot
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@cig0: This issue is currently awaiting triage.

SIG CLI takes a lead on issue triage for this repo, but any Kubernetes member can accept issues by applying the triage/accepted label.

The triage/accepted label can be added by org members by writing /triage accepted in a comment.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

@k8s-ci-robot k8s-ci-robot added the needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one. label Dec 15, 2020
@dougsland
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dougsland commented Dec 20, 2020 •
edited

Looks like a long time regression and still on master. In branch 1.18 it seems works in a "better" way.

$ git branch

  • release-1.18
$ ./_output/local/go/bin/kubectl get pods --sort-by=status
F1220 12:48:36.226885  417859 sorter.go:360] Field {.status} in [][][]reflect.Value is an unsortable type: interface, err: unsortable type: map[string]interface {}

$ ./_output/local/go/bin/kubectl version
Client Version: version.Info{Major:"1", Minor:"18+", GitVersion:"v1.18.15-rc.0.1+e2b8fd2c3bf6fd", GitCommit:"e2b8fd2c3bf6fdc45e5392ac20710b1167d458ac", GitTreeState:"clean", BuildDate:"2020-12-20T17:28:38Z", GoVersion:"go1.15.6", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.8", GitCommit:"9f2892aab98fe339f3bd70e3c470144299398ace", GitTreeState:"clean", BuildDate:"2020-08-13T16:04:18Z", GoVersion:"go1.13.15", Compiler:"gc", Platform:"linux/amd64"}

$ git branch

  • master
$ ./_output/local/go/bin/kubectl version
Client Version: version.Info{Major:"1", Minor:"21+", GitVersion:"v1.21.0-alpha.0.409+b749a3a4216526", GitCommit:"b749a3a421652644bb170b57375ef0cf46c0fa3f", GitTreeState:"clean", BuildDate:"2020-12-20T17:54:59Z", GoVersion:"go1.15.6", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.8", GitCommit:"9f2892aab98fe339f3bd70e3c470144299398ace", GitTreeState:"clean", BuildDate:"2020-08-13T16:04:18Z", GoVersion:"go1.13.15", Compiler:"gc", Platform:"linux/amd64"}

$ ./_output/local/go/bin/kubectl get pods --sort-by=status
F1220 12:56:48.294835  425537 sorter.go:360] Field {.status} in [][][]reflect.Value is an unsortable type: interface, err: unsortable type: map[string]interface {}
goroutine 1 [running]:
k8s.io/kubernetes/vendor/k8s.io/klog/v2.stacks(0xc000138001, 0xc000176b00, 0xa4, 0xf6)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:1026 +0xb9
k8s.io/kubernetes/vendor/k8s.io/klog/v2.(*loggingT).output(0x2aa1780, 0xc000000003, 0x0, 0x0, 0xc0008440e0, 0x2847eb4, 0x9, 0x168, 0x0)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:975 +0x19b
k8s.io/kubernetes/vendor/k8s.io/klog/v2.(*loggingT).printf(0x2aa1780, 0xc000000003, 0x0, 0x0, 0x0, 0x0, 0x1b0e1e9, 0x31, 0xc0006cd040, 0x4, ...)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:750 +0x191
k8s.io/kubernetes/vendor/k8s.io/klog/v2.Fatalf(...)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:1502
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*TableSorter).Less(0xc000cf6f60, 0x0, 0x6, 0xc000cf6f60)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/sorter.go:360 +0x317
sort.medianOfThree(0x1d27700, 0xc000cf6f60, 0x0, 0x6, 0xc)
	/usr/lib/golang/src/sort/sort.go:76 +0x49
sort.doPivot(0x1d27700, 0xc000cf6f60, 0x0, 0x32, 0xc000cfe0e0, 0xc0007396c0)
	/usr/lib/golang/src/sort/sort.go:101 +0x5e5
sort.quickSort(0x1d27700, 0xc000cf6f60, 0x0, 0x32, 0xc)
	/usr/lib/golang/src/sort/sort.go:190 +0x9a
sort.Sort(0x1d27700, 0xc000cf6f60)
	/usr/lib/golang/src/sort/sort.go:218 +0x7a
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*TableSorter).Sort(...)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/sorter.go:366
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*SortingPrinter).PrintObj(0xc00077e7b0, 0x1cf8640, 0xc000022870, 0x1ced460, 0xc00089c000, 0x0, 0x13b304f)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/sorter.go:56 +0x20b
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*TablePrinter).PrintObj(0xc000767d30, 0x1cf8780, 0xc000426028, 0x1ced460, 0xc00089c000, 0xc00000d6e0, 0xc00013579d)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/table_printer.go:41 +0x23a
k8s.io/kubernetes/vendor/k8s.io/cli-runtime/pkg/printers.ResourcePrinterFunc.PrintObj(0xc0006c15c0, 0x1cf8780, 0xc000426028, 0x1ced460, 0xc00089c000, 0x0, 0x20)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/cli-runtime/pkg/printers/interface.go:31 +0x4e
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.(*GetOptions).Run(0xc000168690, 0x1d45c40, 0xc00049bdd0, 0xc0003fb8c0, 0xc0001fb820, 0x1, 0x2, 0x0, 0x0)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/get.go:579 +0x824
k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get.NewCmdGet.func1(0xc0003fb8c0, 0xc0001fb820, 0x1, 0x2)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/get/get.go:167 +0x135
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).execute(0xc0003fb8c0, 0xc0001fb7e0, 0x2, 0x2, 0xc0003fb8c0, 0xc0001fb7e0)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:854 +0x2c2
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc000166dc0, 0xc00013a120, 0xc00013c040, 0x4)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:958 +0x375
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).Execute(...)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:895
main.main()
	_output/local/go/src/k8s.io/kubernetes/cmd/kubectl/kubectl.go:49 +0x21d

goroutine 18 [chan receive]:
k8s.io/kubernetes/vendor/k8s.io/klog/v2.(*loggingT).flushDaemon(0x2aa1780)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:1169 +0x8b
created by k8s.io/kubernetes/vendor/k8s.io/klog/v2.init.0
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/v2/klog.go:417 +0xdf

goroutine 9 [select]:
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.BackoffUntil(0x1bb88d0, 0x1ceda40, 0xc00017e030, 0x1, 0xc000114b40)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:167 +0x149
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil(0x1bb88d0, 0x12a05f200, 0x0, 0x1, 0xc000114b40)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133 +0x98
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.Until(0x1bb88d0, 0x12a05f200, 0xc000114b40)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:90 +0x4d
created by k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/util/logs.InitLogs
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/util/logs/logs.go:51 +0x96

goroutine 148 [IO wait]:
internal/poll.runtime_pollWait(0x7fea27f32bf0, 0x72, 0x1cf0b00)
	/usr/lib/golang/src/runtime/netpoll.go:222 +0x55
internal/poll.(*pollDesc).wait(0xc0006c8518, 0x72, 0x1cf0b00, 0x2876610, 0x0)
	/usr/lib/golang/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
	/usr/lib/golang/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc0006c8500, 0xc0004cc000, 0x3e4e, 0x3e4e, 0x0, 0x0, 0x0)
	/usr/lib/golang/src/internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc0006c8500, 0xc0004cc000, 0x3e4e, 0x3e4e, 0x203000, 0x652f7b, 0xc000aca160)
	/usr/lib/golang/src/net/fd_posix.go:55 +0x4f
net.(*conn).Read(0xc000138270, 0xc0004cc000, 0x3e4e, 0x3e4e, 0x0, 0x0, 0x0)
	/usr/lib/golang/src/net/net.go:182 +0x8e
crypto/tls.(*atLeastReader).Read(0xc000335d80, 0xc0004cc000, 0x3e4e, 0x3e4e, 0xb1a, 0x2e2a, 0xc00056b710)
	/usr/lib/golang/src/crypto/tls/conn.go:779 +0x62
bytes.(*Buffer).ReadFrom(0xc000aca280, 0x1cec440, 0xc000335d80, 0x40b5a5, 0x18e60a0, 0x1a4e780)
	/usr/lib/golang/src/bytes/buffer.go:204 +0xb1
crypto/tls.(*Conn).readFromUntil(0xc000aca000, 0x1ceeee0, 0xc000138270, 0x5, 0xc000138270, 0xb09)
	/usr/lib/golang/src/crypto/tls/conn.go:801 +0xf3
crypto/tls.(*Conn).readRecordOrCCS(0xc000aca000, 0x0, 0x0, 0xc00056bd18)
	/usr/lib/golang/src/crypto/tls/conn.go:608 +0x115
crypto/tls.(*Conn).readRecord(...)
	/usr/lib/golang/src/crypto/tls/conn.go:576
crypto/tls.(*Conn).Read(0xc000aca000, 0xc000ae1000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
	/usr/lib/golang/src/crypto/tls/conn.go:1252 +0x15f
bufio.(*Reader).Read(0xc0003901e0, 0xc00032c578, 0x9, 0x9, 0xc00056bd18, 0x1bb9600, 0x967ccb)
	/usr/lib/golang/src/bufio/bufio.go:227 +0x222
io.ReadAtLeast(0x1cec260, 0xc0003901e0, 0xc00032c578, 0x9, 0x9, 0x9, 0xc000116050, 0x0, 0x1cec660)
	/usr/lib/golang/src/io/io.go:314 +0x87
io.ReadFull(...)
	/usr/lib/golang/src/io/io.go:333
k8s.io/kubernetes/vendor/golang.org/x/net/http2.readFrameHeader(0xc00032c578, 0x9, 0x9, 0x1cec260, 0xc0003901e0, 0x0, 0x0, 0xc00056bdd0, 0x46b285)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/frame.go:237 +0x89
k8s.io/kubernetes/vendor/golang.org/x/net/http2.(*Framer).ReadFrame(0xc00032c540, 0xc0004e8ea0, 0x0, 0x0, 0x0)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/frame.go:492 +0xa5
k8s.io/kubernetes/vendor/golang.org/x/net/http2.(*clientConnReadLoop).run(0xc00056bfa8, 0x0, 0x0)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/transport.go:1819 +0xd8
k8s.io/kubernetes/vendor/golang.org/x/net/http2.(*ClientConn).readLoop(0xc000683c80)
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/transport.go:1741 +0x6f
created by k8s.io/kubernetes/vendor/golang.org/x/net/http2.(*Transport).newClientConn
	/home/douglas/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/golang.org/x/net/http2/transport.go:705 +0x6c5

@knight42
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looks like this is caused by the changes of klog kubernetes/klog#79

It might be better to check if objects is sortable in advance rather than during sorting.

@brianpursley
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@cig0 Is there somewhere in the docs saying that --sort-by=status should work? And if so what are you expecting? status is a map in the json and sort-by is a JSONPath expression:

      --sort-by='': If non-empty, sort list types using this field specification.  The field specification is expressed
as a JSONPath expression (e.g. '{.metadata.name}'). The field in the API resource specified by this JSONPath expression
must be an integer or a string.

I'm trying to understand the bug here, or are you saying that the error should be handled better?

@cig0
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cig0 commented Dec 31, 2020

Hi @brianpursley I see, I confused it's use and hence the trace I got -- thanks.

Anyway, yeah, maybe the error could be shown without the trace for a cleaner output, since it doesn't add any useful information.

Thanks everyone.

@cig0 cig0 closed this as completed Dec 31, 2020
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