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Diffstat (limited to 'jstests/noPassthrough/oplog_writes_only_permitted_on_standalone.js')
-rw-r--r-- | jstests/noPassthrough/oplog_writes_only_permitted_on_standalone.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/jstests/noPassthrough/oplog_writes_only_permitted_on_standalone.js b/jstests/noPassthrough/oplog_writes_only_permitted_on_standalone.js new file mode 100644 index 00000000000..1e77d01c561 --- /dev/null +++ b/jstests/noPassthrough/oplog_writes_only_permitted_on_standalone.js @@ -0,0 +1,52 @@ +/** + * Tests that oplog writes are forbidden on replica set members. In standalone mode, it is permitted + * to insert oplog entries, which will be applied during replication recovery. This behavior is + * needed for point-in-time restores, which are supported on 4.2+. + * @tags: [ + * requires_persistence, + * requires_replication, + * ] + */ +(function() { +"use strict"; + +const rst = new ReplSetTest({nodes: 1}); +rst.startSet(); +rst.initiateWithHighElectionTimeout(); + +let conn = rst.getPrimary(); +assert.commandWorked(conn.getDB("test").coll.insert({_id: 0, a: 0})); + +let oplog = conn.getDB("local").oplog.rs; + +// Construct a valid oplog entry. +const lastOplogEntry = oplog.find().sort({ts: -1}).limit(1).toArray()[0]; +const highestTS = lastOplogEntry.ts; +const toInsert = Object.extend(lastOplogEntry, { + op: "u", + ns: "test.coll", + o: {$set: {a: 1}}, + o2: {_id: 0}, + ts: Timestamp(highestTS.getTime(), highestTS.getInc() + 1) +}); + +jsTestLog("Test that oplog writes are banned when replication is enabled."); +assert.commandFailedWithCode(oplog.insert(toInsert), ErrorCodes.InvalidNamespace); + +jsTestLog("Restart the node in standalone mode."); +rst.stop(0, undefined /*signal*/, undefined /*opts*/, {forRestart: true}); +conn = rst.start(0, {noReplSet: true, noCleanData: true}); + +jsTestLog("Test that oplog writes are permitted in standalone mode."); +assert.commandWorked(conn.getDB("local").oplog.rs.insert(toInsert)); + +jsTestLog("Restart the node with replication enabled."); +rst.stop(0, undefined /*signal*/, undefined /*opts*/, {forRestart: true}); +rst.start(0, {noCleanData: true}); +conn = rst.getPrimary(); + +jsTestLog("The added oplog entry is applied as part of replication recovery."); +assert.eq({_id: 0, a: 1}, conn.getDB("test").coll.findOne()); + +rst.stopSet(); +}()); |