Update

vendor/tailscale.com/tka/limits.go

@@ -0,0 +1,35 @@
+// Copyright (c) Tailscale Inc & contributors
+// SPDX-License-Identifier: BSD-3-Clause
+
+package tka
+
+import (
+	"time"
+)
+
+const (
+	// Upper bound on checkpoint elements, chosen arbitrarily. Intended
+	// to cap the size of large AUMs.
+	maxDisablementValues = 32
+	maxKeys              = 512
+
+	// Max amount of metadata that can be associated with a key, chosen arbitrarily.
+	// Intended to avoid people abusing TKA as a key-value score.
+	maxMetaBytes = 512
+
+	// Max iterations searching for any intersection during the sync process.
+	maxSyncIter = 2000
+
+	// Max iterations searching for a head intersection during the sync process.
+	maxSyncHeadIntersectionIter = 1000
+
+	// Limit on scanning AUM trees, chosen arbitrarily.
+	maxScanIterations = 2000
+)
+
+var (
+	CompactionDefaults = CompactionOptions{
+		MinChain: 24,                  // Keep at minimum 24 AUMs since head.
+		MinAge:   14 * 24 * time.Hour, // Keep 2 weeks of AUMs.
+	}
+)