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🏃clusterctl: add retries to clustectl move #2776

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fabriziopandini
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What this PR does / why we need it:
This PR add some more retries to clusterctl. More specifically

  • adds retries for handling temporary connection problems with clusters
  • adds retries for all the read/write operations triggered clusterctl move

/assign @vincepri
/assign @wfernandes

@k8s-ci-robot k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Mar 25, 2020
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Mar 25, 2020
cmd/clusterctl/client/cluster/client.go Outdated Show resolved Hide resolved
cmd/clusterctl/client/cluster/mover_test.go Outdated Show resolved Hide resolved
Comment on lines +235 to +257
func newConnectBackoff() wait.Backoff {
// Return a exponential backoff configuration which returns durations for a total time of ~15s.
// Example: 0, .25s, .6s, 1.2, 2.1s, 3.4s, 5.5s, 8s, 12s
// Jitter is added as a random fraction of the duration multiplied by the jitter factor.
return wait.Backoff{
Duration: 250 * time.Millisecond,
Factor: 1.5,
Steps: 9,
Jitter: 0.1,
}
}

// newReadBackoff creates a new API Machinery backoff parameter set suitable for use with clusterctl read operations.
func newReadBackoff() wait.Backoff {
// Return a exponential backoff configuration which returns durations for a total time of ~15s.
// Example: 0, .25s, .6s, 1.2, 2.1s, 3.4s, 5.5s, 8s, 12s
// Jitter is added as a random fraction of the duration multiplied by the jitter factor.
return wait.Backoff{
Duration: 250 * time.Millisecond,
Factor: 1.5,
Steps: 9,
Jitter: 0.1,
}
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these two seem to have effectively the same values, is that intended?

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yes, I do expect some tuning here.

cmd/clusterctl/client/cluster/mover.go Show resolved Hide resolved
cmd/clusterctl/client/cluster/objectgraph.go Outdated Show resolved Hide resolved
cmd/clusterctl/client/cluster/proxy.go Outdated Show resolved Hide resolved
cmd/clusterctl/client/cluster/proxy.go Outdated Show resolved Hide resolved
cmd/clusterctl/client/cluster/proxy.go Outdated Show resolved Hide resolved
@fabriziopandini
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@vincepri comment addressed (in a separated commit for easier review)

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/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Mar 25, 2020
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/hold

@k8s-ci-robot k8s-ci-robot added the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Mar 25, 2020
@fabriziopandini fabriziopandini force-pushed the clusterctl-add-retries branch from b56f297 to b8026b3 Compare March 25, 2020 19:17
@k8s-ci-robot k8s-ci-robot removed the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Mar 25, 2020
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/hold cancel
squashed

@k8s-ci-robot k8s-ci-robot removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Mar 25, 2020
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/lgtm

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/milestone v0.3.3

@k8s-ci-robot k8s-ci-robot added this to the v0.3.3 milestone Mar 25, 2020
@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Mar 25, 2020
@k8s-ci-robot k8s-ci-robot merged commit 2b2bfb9 into kubernetes-sigs:master Mar 25, 2020
@fabriziopandini fabriziopandini deleted the clusterctl-add-retries branch April 3, 2020 10:40
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4 participants