From 2a85727ec5da6f9f165241a804fb8d81579c4a32 Mon Sep 17 00:00:00 2001
From: Jun Gong <jungong@tencent.com>
Date: Mon, 28 Oct 2019 14:59:42 +0800
Subject: [PATCH] When schedule begins, run snapshot before prefilter plugins

---
 pkg/scheduler/core/generic_scheduler.go | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/pkg/scheduler/core/generic_scheduler.go b/pkg/scheduler/core/generic_scheduler.go
index 945a5f17221..afa83f29267 100644
--- a/pkg/scheduler/core/generic_scheduler.go
+++ b/pkg/scheduler/core/generic_scheduler.go
@@ -183,13 +183,6 @@ func (g *genericScheduler) Schedule(ctx context.Context, state *framework.CycleS
 	}
 	trace.Step("Basic checks done")
 
-	// Run "prefilter" plugins.
-	preFilterStatus := g.framework.RunPreFilterPlugins(ctx, state, pod)
-	if !preFilterStatus.IsSuccess() {
-		return result, preFilterStatus.AsError()
-	}
-	trace.Step("Running prefilter plugins done")
-
 	if err := g.snapshot(); err != nil {
 		return result, err
 	}
@@ -199,6 +192,13 @@ func (g *genericScheduler) Schedule(ctx context.Context, state *framework.CycleS
 		return result, ErrNoNodesAvailable
 	}
 
+	// Run "prefilter" plugins.
+	preFilterStatus := g.framework.RunPreFilterPlugins(ctx, state, pod)
+	if !preFilterStatus.IsSuccess() {
+		return result, preFilterStatus.AsError()
+	}
+	trace.Step("Running prefilter plugins done")
+
 	startPredicateEvalTime := time.Now()
 	filteredNodes, failedPredicateMap, filteredNodesStatuses, err := g.findNodesThatFit(ctx, state, pod)
 	if err != nil {