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/*
* Tests that mongos doesn't retry commands with startTransaction=true.
* @tags: [requires_fcv_47]
*/
(function() {
'use strict';
const setCommandToFail = (nodeConnection, command, namespace) => {
return nodeConnection.adminCommand({
configureFailPoint: 'failCommand',
mode: {times: 1},
data: {
errorCode: ErrorCodes.InterruptedDueToReplStateChange,
failCommands: [command],
namespace,
failInternalCommands: true
}
});
};
const kDbName = "testDb";
const kCollName = "testColl";
const kNs = `${kDbName}.${kCollName}`;
const kDoc0 = {
_id: 0
};
const kDoc1 = {
_id: 1
};
let transactionNumber = 1;
const st = new ShardingTest({
mongos: 1,
shards: 1,
rs: {nodes: 1},
});
// Initializes test and inserts dummy document
jsTest.log("Inserting test document.");
const mongosDB = st.s0.startSession().getDatabase(kDbName);
const primaryConnection = st.rs0.getPrimary();
assert.commandWorked(mongosDB.runCommand({
insert: kCollName,
documents: [kDoc0],
}));
// Set the failCommand failpoint to make the next 'find' command fail once due to a failover.
// Start a transaction & execute a find command.
// It should fail once due to the 'failCommand' failpoint and should not be retried.
jsTest.log(
"Testing that mongos doesn't retry the read command with startTransaction=true on replication set failover.");
assert.commandWorked(setCommandToFail(primaryConnection, "find", kNs));
assert.commandFailedWithCode(mongosDB.runCommand({
find: kCollName,
filter: kDoc0,
startTransaction: true,
txnNumber: NumberLong(transactionNumber++),
stmtId: NumberInt(0),
autocommit: false
}),
ErrorCodes.InterruptedDueToReplStateChange);
jsTest.log("Testing that mongos retries retryable writes on failover.");
assert.commandWorked(setCommandToFail(primaryConnection, "insert", kNs));
assert.commandWorked(mongosDB.runCommand(
{insert: kCollName, documents: [kDoc1], txnNumber: NumberLong(transactionNumber++)}));
st.stop();
})();
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