SERVER-52950 recoverFromOplogAsStandalone mode must not start oplog truncater thread

1 files changed, 58 insertions, 0 deletions

diff --git a/jstests/noPassthrough/check_for_oplog_cap_maintainer_thread.js b/jstests/noPassthrough/check_for_oplog_cap_maintainer_thread.js
new file mode 100644
index 00000000000..ae5588c20f6
--- /dev/null
+++ b/jstests/noPassthrough/check_for_oplog_cap_maintainer_thread.js
@@ -0,0 +1,58 @@
+/**
+ * Checks that the oplog cap maintainer thread is started and the oplog stones calculation is
+ * performed under normal startup circumstances. Both of these operations should not be done when
+ * starting up with any of the following modes:
+ *     - readonly
+ *     - repair
+ *     - recoverFromOplogAsStandalone
+ *
+ * @tags: [requires_replication, requires_persistence]
+ */
+(function() {
+"use strict";
+
+// Verify that the oplog cap maintainer thread is running under normal circumstances.
+jsTestLog("Testing single node replica set mode");
+const rst = new ReplSetTest({nodes: 1, nodeOptions: {setParameter: {logLevel: 1}}});
+rst.startSet();
+rst.initiate();
+
+const primary = rst.getPrimary();
+
+checkLog.contains(primary, "OplogTruncaterThread started");
+checkLog.contains(primary, "WiredTiger record store oplog processing took");
+
+rst.stopSet(/*signal=*/null, /*forRestart=*/true);
+
+// A subset of startup options prevent the oplog cap maintainer thread from being started. These
+// startup options are currently limited to readOnly, recoverFromOplogAsStandalone and repair.
+function verifyOplogCapMaintainerThreadNotStarted(log) {
+    const threadRegex = new RegExp("OplogTruncaterThread started");
+    const oplogStonesRegex = new RegExp("WiredTiger record store oplog processing took");
+
+    assert(!threadRegex.test(log));
+    assert(!oplogStonesRegex.test(log));
+}
+
+jsTestLog("Testing recoverFromOplogAsStandalone mode");
+clearRawMongoProgramOutput();
+let conn = MongoRunner.runMongod({
+    dbpath: primary.dbpath,
+    noCleanData: true,
+    setParameter: {recoverFromOplogAsStandalone: true, logLevel: 1},
+});
+assert(conn);
+MongoRunner.stopMongod(conn);
+verifyOplogCapMaintainerThreadNotStarted(rawMongoProgramOutput());
+
+jsTestLog("Testing repair mode");
+clearRawMongoProgramOutput();
+conn = MongoRunner.runMongod({
+    dbpath: primary.dbpath,
+    noCleanData: true,
+    repair: "",
+    setParameter: {logLevel: 1},
+});
+assert(!conn);
+verifyOplogCapMaintainerThreadNotStarted(rawMongoProgramOutput());
+}());