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fix: forbid balancing level zero segments (#29130)

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we can't balance the L0 segments
related #29128

---------

Signed-off-by: yah01 <yah2er0ne@outlook.com>
Signed-off-by: yah01 <yang.cen@zilliz.com>
This commit is contained in:
yah01 2023-12-12 20:38:38 +08:00 committed by GitHub
parent cb5c06c718
commit 2f0c7a6544
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 10 additions and 3 deletions
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7
internal/querycoordv2/balance/rowcount_based_balancer.go
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@ -24,6 +24,7 @@ import (
"github.com/samber/lo"
"go.uber.org/zap"
"github.com/milvus-io/milvus/internal/proto/datapb"
"github.com/milvus-io/milvus/internal/querycoordv2/meta"
"github.com/milvus-io/milvus/internal/querycoordv2/session"
"github.com/milvus-io/milvus/internal/querycoordv2/task"
@ -191,7 +192,8 @@ func (b *RowCountBasedBalancer) genStoppingSegmentPlan(replica *meta.Replica, on
dist := b.dist.SegmentDistManager.GetByCollectionAndNode(replica.GetCollectionID(), nodeID)
segments := lo.Filter(dist, func(segment *meta.Segment, _ int) bool {
return b.targetMgr.GetSealedSegment(segment.GetCollectionID(), segment.GetID(), meta.CurrentTarget) != nil &&
b.targetMgr.GetSealedSegment(segment.GetCollectionID(), segment.GetID(), meta.NextTarget) != nil
b.targetMgr.GetSealedSegment(segment.GetCollectionID(), segment.GetID(), meta.NextTarget) != nil &&
segment.GetLevel() != datapb.SegmentLevel_L0
})
plans := b.AssignSegment(replica.CollectionID, segments, onlineNodes)
for i := range plans {
@ -213,7 +215,8 @@ func (b *RowCountBasedBalancer) genSegmentPlan(replica *meta.Replica, onlineNode
dist := b.dist.SegmentDistManager.GetByCollectionAndNode(replica.GetCollectionID(), node)
segments := lo.Filter(dist, func(segment *meta.Segment, _ int) bool {
return b.targetMgr.GetSealedSegment(segment.GetCollectionID(), segment.GetID(), meta.CurrentTarget) != nil &&
b.targetMgr.GetSealedSegment(segment.GetCollectionID(), segment.GetID(), meta.NextTarget) != nil
b.targetMgr.GetSealedSegment(segment.GetCollectionID(), segment.GetID(), meta.NextTarget) != nil &&
segment.GetLevel() != datapb.SegmentLevel_L0
})
rowCount := 0
for _, s := range segments {

5
internal/querycoordv2/balance/score_based_balancer.go
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@ -23,6 +23,7 @@ import (
"go.uber.org/zap"
"golang.org/x/exp/maps"
"github.com/milvus-io/milvus/internal/proto/datapb"
"github.com/milvus-io/milvus/internal/querycoordv2/meta"
"github.com/milvus-io/milvus/internal/querycoordv2/params"
"github.com/milvus-io/milvus/internal/querycoordv2/session"
@ -136,7 +137,9 @@ func (b *ScoreBasedBalancer) BalanceReplica(replica *meta.Replica) ([]SegmentAss
segments := b.dist.SegmentDistManager.GetByCollectionAndNode(replica.GetCollectionID(), nid)
// Only balance segments in targets
segments = lo.Filter(segments, func(segment *meta.Segment, _ int) bool {
return b.targetMgr.GetSealedSegment(segment.GetCollectionID(), segment.GetID(), meta.CurrentTarget) != nil
return b.targetMgr.GetSealedSegment(segment.GetCollectionID(), segment.GetID(), meta.CurrentTarget) != nil &&
b.targetMgr.GetSealedSegment(segment.GetCollectionID(), segment.GetID(), meta.NextTarget) != nil &&
segment.GetLevel() != datapb.SegmentLevel_L0
})
if isStopping, err := b.nodeManager.IsStoppingNode(nid); err != nil {

1
internal/querycoordv2/balance/score_based_balancer_test.go
View File

@ -604,6 +604,7 @@ func (suite *ScoreBasedBalancerTestSuite) TestStoppedBalance() {
balancer.meta.ReplicaManager.Put(utils.CreateTestReplica(c.replicaID, c.collectionID, c.nodes))
balancer.targetMgr.UpdateCollectionNextTarget(c.collectionID)
balancer.targetMgr.UpdateCollectionCurrentTarget(c.collectionID)
balancer.targetMgr.UpdateCollectionNextTarget(c.collectionID)
// 2. set up target for distribution for multi collections
for node, s := range c.distributions {