SERVER-37922 Convert snapshot window set parameters

1 files changed, 83 insertions, 0 deletions

diff --git a/src/mongo/db/snapshot_window_options.idl b/src/mongo/db/snapshot_window_options.idl
new file mode 100644
index 00000000000..277d5b665ee
--- /dev/null
+++ b/src/mongo/db/snapshot_window_options.idl
@@ -0,0 +1,83 @@
+# Copyright (C) 2018-present MongoDB, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the Server Side Public License, version 1,
+# as published by MongoDB, Inc.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# Server Side Public License for more details.
+#
+# You should have received a copy of the Server Side Public License
+# along with this program. If not, see
+# <http://www.mongodb.com/licensing/server-side-public-license>.
+#
+# As a special exception, the copyright holders give permission to link the
+# code of portions of this program with the OpenSSL library under certain
+# conditions as described in each individual source file and distribute
+# linked combinations including the program with the OpenSSL library. You
+# must comply with the Server Side Public License in all respects for
+# all of the code used other than as permitted herein. If you modify file(s)
+# with this exception, you may extend this exception to your version of the
+# file(s), but you are not obligated to do so. If you do not wish to do so,
+# delete this exception statement from your version. If you delete this
+# exception statement from all source files in the program, then also delete
+# it in the license file.
+#
+
+global:
+  cpp_namespace: "mongo"
+  cpp_includes:
+    - "mongo/db/snapshot_window_options.h"
+
+imports:
+  - "mongo/idl/basic_types.idl"
+
+server_parameters:
+  maxTargetSnapshotHistoryWindowInSeconds:
+    description: "Maximum target snapshot history window, in seconds"
+    set_at: [ startup, runtime ]
+    cpp_varname: "snapshotWindowParams.maxTargetSnapshotHistoryWindowInSeconds"
+    validator: { gte: 0 }
+
+  cachePressureThreshold:
+    description: "Cache pressure threshold"
+    set_at: [ startup, runtime ]
+    cpp_varname: "snapshotWindowParams.cachePressureThreshold"
+    validator:
+      gte: 0
+      lte: 100
+
+  snapshotWindowMultiplicativeDecrease:
+    description: "Snapshot window multiplicative decrease"
+    set_at: [ startup, runtime ]
+    cpp_varname: "snapshotWindowParams.snapshotWindowMultiplicativeDecrease"
+    validator:
+      gt: 0.0
+      lt: 1.0
+
+  snapshotWindowAdditiveIncreaseSeconds:
+    description: "Snapshot window multiplicative increase, in seconds"
+    set_at: [ startup, runtime ]
+    cpp_varname: "snapshotWindowParams.snapshotWindowAdditiveIncreaseSeconds"
+    validator: { gte: 1 }
+
+  minMillisBetweenSnapshotWindowInc:
+    description: "Minimum duration between snapshot window increment, in milliseconds"
+    set_at: [ startup, runtime ]
+    cpp_varname: "snapshotWindowParams.minMillisBetweenSnapshotWindowInc"
+    validator: { gte: 1 }
+
+  minMillisBetweenSnapshotWindowDec:
+    description: "Minimum duration between snapshot window decrement, in milliseconds"
+    set_at: [ startup, runtime ]
+    cpp_varname: "snapshotWindowParams.minMillisBetweenSnapshotWindowDec"
+    validator: { gte: 1 }
+
+  checkCachePressurePeriodSeconds:
+    description: "Check cache pressure period, in seconds"
+    set_at: [ startup, runtime ]
+    cpp_varname: "snapshotWindowParams.checkCachePressurePeriodSeconds"
+    validator: { gte: 1 }
+