59 lines
2.2 KiB
JavaScript
59 lines
2.2 KiB
JavaScript
/**
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* Ensure serverStatus reports the total time spent sampling the oplog for all storage engines that
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* support OplogTruncateMarkers.
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* @tags: [ requires_persistence ]
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*/
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(function() {
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"use strict";
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// Force oplog sampling to occur on start up for small numbers of oplog inserts.
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const replSet = new ReplSetTest({
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nodes: 1,
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nodeOptions: {
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setParameter: {
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"maxOplogTruncationPointsDuringStartup": 10,
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logComponentVerbosity: tojson({storage: {verbosity: 3}}),
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}
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}
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});
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replSet.startSet();
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replSet.initiate();
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let coll = replSet.getPrimary().getDB("test").getCollection("testcoll");
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let res = replSet.getPrimary().getDB("test").serverStatus();
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assert.commandWorked(res);
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// Small (or empty) oplogs should be processed by scanning.
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assert.gte(res.oplogTruncation.totalTimeProcessingMicros, 0);
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assert.eq(res.oplogTruncation.processingMethod, "scanning");
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// Insert enough documents to force oplog sampling to occur on the following start up.
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const maxOplogDocsForScanning = 2000;
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for (let i = 0; i < maxOplogDocsForScanning + 1; i++) {
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assert.commandWorked(coll.insert({m: 1 + i}));
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}
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// Ensure we have enough oplog entries in the oplog to avoid scanning.
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// Check counts reported by aggregation and fast count.
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const numOplogEntries = replSet.getPrimary().getDB("local").oplog.rs.countDocuments({});
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jsTestLog('Number of oplog entries before restarting (aggregation): ' + numOplogEntries);
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assert.gte(numOplogEntries, maxOplogDocsForScanning);
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const numOplogEntriesFastCount = replSet.getPrimary().getDB("local").oplog.rs.count();
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jsTestLog('Number of oplog entries before restarting (fast count): ' + numOplogEntriesFastCount);
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assert.gte(numOplogEntriesFastCount, maxOplogDocsForScanning);
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assert.lte(numOplogEntriesFastCount, numOplogEntries);
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// Restart replica set to load entries from the oplog for sampling.
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replSet.stopSet(null /* signal */, true /* forRestart */);
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replSet.startSet({restart: true});
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res = replSet.getPrimary().getDB("test").serverStatus();
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assert.commandWorked(res);
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assert.gt(res.oplogTruncation.totalTimeProcessingMicros, 0);
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assert.eq(res.oplogTruncation.processingMethod, "sampling");
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replSet.stopSet();
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})();
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