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fix: [Cherry-pick] Check latest leader exists before using it (#31500) (#31546)

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Cherry-pick from master
pr: #31500
See also #31495

---------

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
This commit is contained in:
congqixia 2024-03-23 11:51:06 +08:00 committed by GitHub
parent 99774548f2
commit 5d3aa2a496
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GPG Key ID: B5690EEEBB952194
1 changed files with 2 additions and 2 deletions
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4
internal/querycoordv2/checkers/segment_checker.go
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@ -370,13 +370,13 @@ func (c *SegmentChecker) createSegmentLoadTasks(ctx context.Context, segments []
plans := make([]balance.SegmentAssignPlan, 0)
for shard, segments := range shardSegments {
// if channel is not subscribed yet, skip load segments
if len(c.dist.LeaderViewManager.GetLeadersByShard(shard)) == 0 {
leader := c.dist.LeaderViewManager.GetLatestLeadersByReplicaShard(replica, shard)
if leader == nil {
continue
}
// L0 segment can only be assign to shard leader's node
if isLevel0 {
leader := c.dist.LeaderViewManager.GetLatestLeadersByReplicaShard(replica, shard)
availableNodes = []int64{leader.ID}
}