mirror of https://github.com/mongodb/mongo
89 lines
3.0 KiB
JavaScript
89 lines
3.0 KiB
JavaScript
// Tests the replSetStepUp command.
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import {ReplSetTest} from "jstests/libs/replsettest.js";
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import {restartServerReplication, stopServerReplication} from "jstests/libs/write_concern_util.js";
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import {verifyServerStatusElectionReasonCounterChange} from "jstests/replsets/libs/election_metrics.js";
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let name = "stepup";
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let rst = new ReplSetTest({name: name, nodes: 2});
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rst.startSet();
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rst.initiate();
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let primary = rst.getPrimary();
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let secondary = rst.getSecondary();
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// The default WC is majority and stopServerReplication will prevent satisfying any majority writes.
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assert.commandWorked(
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primary.adminCommand({setDefaultRWConcern: 1, defaultWriteConcern: {w: 1}, writeConcern: {w: "majority"}}),
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);
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const initialSecondaryStatus = assert.commandWorked(secondary.adminCommand({serverStatus: 1}));
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// Step up the primary. Return OK because it's already the primary.
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let res = primary.adminCommand({replSetStepUp: 1});
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assert.commandWorked(res);
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assert.eq(primary, rst.getPrimary());
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// Step up the secondary, but it's not eligible to be primary.
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// Enable fail point on secondary.
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stopServerReplication(secondary);
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assert.commandWorked(primary.getDB("test").bar.insert({x: 2}, {writeConcern: {w: 1}}));
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res = secondary.adminCommand({replSetStepUp: 1});
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assert.commandFailedWithCode(res, ErrorCodes.CommandFailed);
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restartServerReplication(secondary);
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// Wait for the secondary to catch up by replicating a doc to both nodes.
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assert.commandWorked(primary.getDB("test").bar.insert({x: 3}, {writeConcern: {w: "majority"}}));
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// Step up the secondary. Retry since the old primary may step down when we try to ask for its
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// vote.
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let numStepUpCmds = 0;
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rst.awaitReplication();
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assert.soonNoExcept(function () {
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numStepUpCmds++;
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return secondary.adminCommand({replSetStepUp: 1}).ok;
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});
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// Make sure the step up succeeded.
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assert.eq(secondary, rst.getPrimary());
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const newSecondaryStatus = assert.commandWorked(secondary.adminCommand({serverStatus: 1}));
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// Check that both the 'called' and 'successful' fields of stepUpCmd have been incremented in
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// serverStatus, and that they have not been incremented in any of the other election reason
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// counters.
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verifyServerStatusElectionReasonCounterChange(
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initialSecondaryStatus.electionMetrics,
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newSecondaryStatus.electionMetrics,
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"stepUpCmd",
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numStepUpCmds /* expectedNumCalled */,
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1 /* expectedNumSuccessful */,
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);
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verifyServerStatusElectionReasonCounterChange(
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initialSecondaryStatus.electionMetrics,
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newSecondaryStatus.electionMetrics,
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"priorityTakeover",
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0,
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);
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verifyServerStatusElectionReasonCounterChange(
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initialSecondaryStatus.electionMetrics,
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newSecondaryStatus.electionMetrics,
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"catchUpTakeover",
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0,
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);
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verifyServerStatusElectionReasonCounterChange(
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initialSecondaryStatus.electionMetrics,
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newSecondaryStatus.electionMetrics,
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"electionTimeout",
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0,
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);
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verifyServerStatusElectionReasonCounterChange(
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initialSecondaryStatus.electionMetrics,
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newSecondaryStatus.electionMetrics,
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"freezeTimeout",
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0,
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);
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rst.stopSet();
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