jstests/sharding/min_optime_recovery_on_failed_move_chunk_commit.js


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/**
 * Tests that the shard will update the min optime recovery document after startup.
 * @tags: [requires_persistence]
 */
(function() {
"use strict";

var st = new ShardingTest({shards: 1});

// Insert a recovery doc with non-zero minOpTimeUpdaters to simulate a migration
// process that crashed in the middle of the critical section.

var recoveryDoc = {
    _id: 'minOpTimeRecovery',
    minOpTime: {ts: Timestamp(0, 0), t: 0},
    minOpTimeUpdaters: 2
};

assert.commandWorked(st.shard0.getDB('admin').system.version.insert(recoveryDoc));

// Make sure test is setup correctly.
var minOpTimeRecoveryDoc =
    st.shard0.getDB('admin').system.version.findOne({_id: 'minOpTimeRecovery'});

assert.neq(null, minOpTimeRecoveryDoc);
assert.eq(0, minOpTimeRecoveryDoc.minOpTime.ts.getTime());
assert.eq(2, minOpTimeRecoveryDoc.minOpTimeUpdaters);

st.restartShardRS(0);

// After the restart, the shard should have updated the opTime and reset minOpTimeUpdaters.
minOpTimeRecoveryDoc = st.shard0.getDB('admin').system.version.findOne({_id: 'minOpTimeRecovery'});

assert.neq(null, minOpTimeRecoveryDoc);
assert.gt(minOpTimeRecoveryDoc.minOpTime.ts.getTime(), 0);
assert.eq(0, minOpTimeRecoveryDoc.minOpTimeUpdaters);

st.stop();
})();