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rpk: supports triggering on-demand balancer
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,67 @@ | ||
| // Copyright 2024 Redpanda Data, Inc. | ||
| // | ||
| // Use of this software is governed by the Business Source License | ||
| // included in the file licenses/BSL.md | ||
| // | ||
| // As of the Change Date specified in that file, in accordance with | ||
| // the Business Source License, use of this software will be governed | ||
| // by the Apache License, Version 2.0 | ||
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| package partitions | ||
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| import ( | ||
| "fmt" | ||
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| "github.com/redpanda-data/redpanda/src/go/rpk/pkg/adminapi" | ||
| "github.com/redpanda-data/redpanda/src/go/rpk/pkg/config" | ||
| "github.com/redpanda-data/redpanda/src/go/rpk/pkg/out" | ||
| "github.com/spf13/afero" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
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| func newTriggerBalancerCommand(fs afero.Fs, p *config.Params) *cobra.Command { | ||
| cmd := &cobra.Command{ | ||
| Use: "balance", | ||
| Short: "Triggers on-demand partition balancing", | ||
| Long: `Triggers on-demand partition balancing. | ||
| This command allows you to trigger on-demand partition balancing. | ||
| With Redpanda Community Edition, the partition count on each broker | ||
| can easily become uneven, which leads to data skewing. To distribute | ||
| partitions across brokers, you can run this command to trigger | ||
| on-demand partition balancing. | ||
| With Redpanda Enterprise Edition, Continuous Data Balancing monitors | ||
| broker and rack availability, as well as disk usage, to avoid topic | ||
| hotspots. However, there are edge cases where users should manually | ||
| trigger partition balancing (such as a node becoming unavailable for | ||
| a prolonged time and rejoining the cluster thereafter). In such cases, | ||
| you should run this command to trigger partition balancing manually. | ||
| After you run this command, monitor the balancer progress using: | ||
| rpk cluster partitions balancer-status | ||
| To see more detailed movement status, monitor the progress using: | ||
| rpk cluster partitions move-status | ||
| `, | ||
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| Args: cobra.ExactArgs(0), | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
| p, err := p.LoadVirtualProfile(fs) | ||
| out.MaybeDie(err, "rpk unable to load config: %v", err) | ||
| config.CheckExitCloudAdmin(p) | ||
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| cl, err := adminapi.NewClient(fs, p) | ||
| out.MaybeDie(err, "unable to initialize admin client: %v", err) | ||
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| err = cl.TriggerBalancer(cmd.Context()) | ||
| out.MaybeDie(err, "failed to invoke on-demand partition balancing: %v", err) | ||
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| fmt.Println("Successfully triggered on-demand partition balancing.\n\nPlease find the progress with 'rpk cluster partitions balancer-status'.") | ||
| }, | ||
| } | ||
| return cmd | ||
| } |
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