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082ca62ec1
issue: #43968 - Add ListStreamingNode/GetWALDistribution to fetch streaming node info - Add SuspendRebalance/ResumeRebalance to enable or stop balance - Add FreezeNodeIDs/DefreezeNodeIDs to freeze target node Signed-off-by: chyezh <chyezh@outlook.com>
83 lines
2.6 KiB
Go
83 lines
2.6 KiB
Go
package balancer
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import (
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"context"
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"strconv"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/pkg/v2/streaming/util/types"
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"github.com/milvus-io/milvus/pkg/v2/util/paramtable"
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"github.com/milvus-io/milvus/pkg/v2/util/syncutil"
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)
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// request is a operation request.
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type request struct {
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ctx context.Context
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apply requestApply
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future *syncutil.Future[error]
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}
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// requestApply is a request operation to be executed.
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type requestApply func(impl *balancerImpl)
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// newOpUpdateBalancePolicy is a operation to update the balance policy.
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func newOpUpdateBalancePolicy(ctx context.Context, req *types.UpdateWALBalancePolicyRequest) *request {
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future := syncutil.NewFuture[error]()
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return &request{
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ctx: ctx,
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apply: func(impl *balancerImpl) {
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if req.UpdateMask != nil {
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// if there's a update mask, only update the fields in the update mask.
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for _, field := range req.UpdateMask.Paths {
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switch field {
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case types.UpdateMaskPathWALBalancePolicyAllowRebalance:
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updateAllowRebalance(impl, req.GetConfig().GetAllowRebalance())
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}
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}
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} else {
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// otherwise update all fields.
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updateAllowRebalance(impl, req.GetConfig().GetAllowRebalance())
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}
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// apply the freeze streaming nodes.
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if len(req.GetNodes().GetFreezeNodeIds()) > 0 || len(req.GetNodes().GetDefreezeNodeIds()) > 0 {
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impl.Logger().Info("update freeze nodes", zap.Int64s("freezeNodeIDs", req.GetNodes().GetFreezeNodeIds()), zap.Int64s("defreezeNodeIDs", req.GetNodes().GetDefreezeNodeIds()))
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impl.freezeNodes.Insert(req.GetNodes().GetFreezeNodeIds()...)
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impl.freezeNodes.Remove(req.GetNodes().GetDefreezeNodeIds()...)
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}
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future.Set(nil)
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},
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future: future,
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}
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}
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// updateAllowRebalance update the allow rebalance.
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func updateAllowRebalance(impl *balancerImpl, allowRebalance bool) {
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old := paramtable.Get().StreamingCfg.WALBalancerPolicyAllowRebalance.SwapTempValue(strconv.FormatBool(allowRebalance))
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impl.Logger().Info("update allow_rebalance", zap.Bool("new", allowRebalance), zap.String("old", old))
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}
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// newOpMarkAsUnavailable is a operation to mark some channels as unavailable.
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func newOpMarkAsUnavailable(ctx context.Context, pChannels []types.PChannelInfo) *request {
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future := syncutil.NewFuture[error]()
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return &request{
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ctx: ctx,
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apply: func(impl *balancerImpl) {
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future.Set(impl.channelMetaManager.MarkAsUnavailable(ctx, pChannels))
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},
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future: future,
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}
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}
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// newOpTrigger is a operation to trigger a re-balance operation.
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func newOpTrigger(ctx context.Context) *request {
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future := syncutil.NewFuture[error]()
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return &request{
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ctx: ctx,
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apply: func(impl *balancerImpl) {
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future.Set(nil)
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},
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future: future,
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}
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}
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