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/**
* Validate batched multi-deleter's parameters.
*
* @tags: [
* requires_fcv_61,
* requires_replication,
* ]
*/
(function() {
"use strict";
load("jstests/libs/fail_point_util.js"); // For 'configureFailPoint()'
const rst = new ReplSetTest({
nodes: 2,
});
rst.startSet();
rst.initiate();
rst.awaitNodesAgreeOnPrimary();
const conn = rst.getPrimary();
const db = conn.getDB("test");
const coll = db.getCollection("c");
function validateTargetDocsPerBatch() {
const collCount = 1234;
assert.commandWorked(db.adminCommand({setParameter: 1, batchedDeletesTargetBatchTimeMS: 0}));
for (let docsPerBatch of [0, 1, 20, 100]) {
jsTestLog("Validating targetBatchDocs=" + docsPerBatch);
coll.drop();
assert.commandWorked(
coll.insertMany([...Array(collCount).keys()].map(x => ({_id: x, a: "a".repeat(10)})),
{ordered: false}));
assert.commandWorked(
db.adminCommand({setParameter: 1, batchedDeletesTargetBatchDocs: docsPerBatch}));
// batchedDeletesTargetBatchDocs := 0 means no limit.
const expectedBatches = docsPerBatch ? Math.ceil(collCount / docsPerBatch) : 1;
const serverStatusBatchesBefore = db.serverStatus()['batchedDeletes']['batches'];
const serverStatusDocsBefore = db.serverStatus()['batchedDeletes']['docs'];
assert.eq(collCount, coll.find().itcount());
assert.commandWorked(coll.deleteMany({_id: {$gte: 0}}));
assert.eq(0, coll.find().itcount());
const serverStatusBatchesAfter = db.serverStatus()['batchedDeletes']['batches'];
const serverStatusDocsAfter = db.serverStatus()['batchedDeletes']['docs'];
const serverStatusDocsExpected = serverStatusDocsBefore + collCount;
const serverStatusBatchesExpected = serverStatusBatchesBefore + expectedBatches;
assert.eq(serverStatusBatchesAfter, serverStatusBatchesExpected);
assert.eq(serverStatusDocsAfter, serverStatusDocsExpected);
rst.awaitReplication();
rst.checkReplicatedDataHashes();
}
}
function validateTargetBatchTimeMS() {
const collCount = 10;
assert.commandWorked(db.adminCommand({setParameter: 1, batchedDeletesTargetBatchDocs: 0}));
for (let targetBatchTimeMS of [0, 1000]) {
jsTestLog("Validating targetBatchTimeMS=" + targetBatchTimeMS);
coll.drop();
assert.commandWorked(
coll.insertMany([...Array(collCount).keys()].map(x => ({_id: x, a: "a".repeat(10)})),
{ordered: false}));
assert.commandWorked(
db.adminCommand({setParameter: 1, batchedDeletesTargetBatchTimeMS: targetBatchTimeMS}));
// batchedDeletesTargetBatchTimeMS := 0 means no limit.
const expectedBatches = targetBatchTimeMS ? collCount : 1;
const serverStatusBatchesBefore = db.serverStatus()['batchedDeletes']['batches'];
const serverStatusDocsBefore = db.serverStatus()['batchedDeletes']['docs'];
assert.eq(collCount, coll.find().itcount());
// Make every delete take >> targetBatchTimeMS.
const fp = configureFailPoint(db,
"batchedDeleteStageSleepAfterNDocuments",
{nDocs: 1, ns: coll.getFullName(), sleepMs: 2000});
assert.commandWorked(coll.deleteMany({_id: {$gte: 0}}));
assert.eq(0, coll.find().itcount());
fp.off();
const serverStatusBatchesAfter = db.serverStatus()['batchedDeletes']['batches'];
const serverStatusDocsAfter = db.serverStatus()['batchedDeletes']['docs'];
const serverStatusDocsExpected = serverStatusDocsBefore + collCount;
const serverStatusBatchesExpected = serverStatusBatchesBefore + expectedBatches;
assert.eq(serverStatusBatchesAfter, serverStatusBatchesExpected);
assert.eq(serverStatusDocsAfter, serverStatusDocsExpected);
rst.awaitReplication();
rst.checkReplicatedDataHashes();
}
}
function validateTargetStagedDocsBytes() {
const collCount = 10000;
const docPaddingBytes = 1024;
const cumulativePaddingBytes = collCount *
(bsonsize({_id: ObjectId(), a: 'a'}) +
100 /* allow for getMemUsage() own metadata and overestimation */ + docPaddingBytes);
assert.commandWorked(db.adminCommand({setParameter: 1, batchedDeletesTargetBatchTimeMS: 0}));
assert.commandWorked(db.adminCommand({setParameter: 1, batchedDeletesTargetBatchDocs: 0}));
for (let stagedDocsBytes of [0, 1024 * 1024, 5 * 1024 * 1024]) {
jsTestLog("Validating stagedDocsBytes=" + stagedDocsBytes);
assert.commandWorked(db.adminCommand(
{setParameter: 1, batchedDeletesTargetStagedDocBytes: stagedDocsBytes}));
coll.drop();
assert.commandWorked(coll.insertMany(
[...Array(collCount).keys()].map(x => ({a: "a".repeat(docPaddingBytes)})),
{ordered: false}));
// batchedDeletesTargetStagedDocsBytes := 0 means no limit.
const expectedBatches =
stagedDocsBytes ? Math.ceil(cumulativePaddingBytes / stagedDocsBytes) : 1;
const serverStatusBatchesBefore = db.serverStatus()['batchedDeletes']['batches'];
const serverStatusDocsBefore = db.serverStatus()['batchedDeletes']['docs'];
assert.eq(collCount, coll.find().itcount());
assert.commandWorked(coll.deleteMany({}));
assert.eq(0, coll.find().itcount());
const serverStatusBatchesAfter = db.serverStatus()['batchedDeletes']['batches'];
const serverStatusDocsAfter = db.serverStatus()['batchedDeletes']['docs'];
const serverStatusDocsExpected = serverStatusDocsBefore + collCount;
const serverStatusBatchesExpected = serverStatusBatchesBefore + expectedBatches;
assert.eq(serverStatusBatchesAfter, serverStatusBatchesExpected);
assert.eq(serverStatusDocsAfter, serverStatusDocsExpected);
rst.awaitReplication();
rst.checkReplicatedDataHashes();
}
}
validateTargetDocsPerBatch();
validateTargetBatchTimeMS();
validateTargetStagedDocsBytes();
rst.stopSet();
})();
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