diff options
Diffstat (limited to 'jstests')
-rw-r--r-- | jstests/multiVersion/remove_config_term_on_replset_downgrade.js | 73 | ||||
-rw-r--r-- | jstests/replsets/reconfig_ignores_term_field.js | 3 |
2 files changed, 74 insertions, 2 deletions
diff --git a/jstests/multiVersion/remove_config_term_on_replset_downgrade.js b/jstests/multiVersion/remove_config_term_on_replset_downgrade.js new file mode 100644 index 00000000000..4315fdcc506 --- /dev/null +++ b/jstests/multiVersion/remove_config_term_on_replset_downgrade.js @@ -0,0 +1,73 @@ +/** + * Test the downgrade of a replica set from latest version to last-stable version succeeds and + * removes the "term" field of config document. + */ + +(function() { +'use strict'; + +load('jstests/multiVersion/libs/multi_rs.js'); +load('jstests/libs/test_background_ops.js'); + +let newVersion = "latest"; +let oldVersion = "last-stable"; + +let nodes = { + n1: {binVersion: newVersion}, + n2: {binVersion: newVersion}, + n3: {binVersion: newVersion} +}; + +let rst = new ReplSetTest({nodes: nodes}); +rst.startSet(); +rst.initiate(); + +let primary = rst.getPrimary(); + +// The default FCV is latestFCV for non-shard replica sets. +let primaryAdminDB = rst.getPrimary().getDB("admin"); +checkFCV(primaryAdminDB, latestFCV); + +// Reconfig in FCV 4.4. +let originalConfig = rst.getReplSetConfigFromNode(); +originalConfig.version++; +reconfig(rst, originalConfig); +rst.awaitNodesAgreeOnConfigVersion(); + +// Check that the term field exists in the config document on all nodes. +rst.nodes.forEach(function(node) { + jsTestLog("Checking the config term on node " + tojson(node.host) + " before downgrade."); + let config = node.getDB("local").getCollection("system.replset").findOne(); + assert(config.hasOwnProperty("term")); +}); + +// Remember the config from the primary before the downgrade. +let configInNewVersion = rst.getReplSetConfigFromNode(); + +jsTest.log("Downgrading FCV to 4.2"); +assert.commandWorked(primary.adminCommand({setFeatureCompatibilityVersion: lastStableFCV})); +rst.awaitReplication(); +// Check that the term field doesn't exist in the config document on all nodes. +rst.nodes.forEach(function(node) { + jsTestLog("Checking the config term on node " + tojson(node.host) + " after FCV downgrade."); + let config = node.getDB("local").getCollection("system.replset").findOne(); + assert(!config.hasOwnProperty("term"), tojson(config)); + config.term = configInNewVersion.term; + assert.docEq(configInNewVersion, config); +}); + +jsTest.log("Downgrading replica set.."); +rst.upgradeSet({binVersion: oldVersion}); +jsTest.log("Downgrade complete."); + +// Check that the term field doesn't exist in the config document on all nodes. +rst.nodes.forEach(function(node) { + reconnect(node); + jsTestLog("Checking the config term on node " + tojson(node.host) + " after binary downgrade."); + let config = node.getDB("local").getCollection("system.replset").findOne(); + assert(!config.hasOwnProperty("term"), tojson(config)); + config.term = configInNewVersion.term; + assert.docEq(configInNewVersion, config); +}); +rst.stopSet(); +})(); diff --git a/jstests/replsets/reconfig_ignores_term_field.js b/jstests/replsets/reconfig_ignores_term_field.js index bfe3d5b9d20..2cc48ac950d 100644 --- a/jstests/replsets/reconfig_ignores_term_field.js +++ b/jstests/replsets/reconfig_ignores_term_field.js @@ -25,7 +25,6 @@ assert.commandWorked(primary.getDB("admin").runCommand({replSetReconfig: config} replTest.awaitReplication(); config = primary.getDB("local").system.replset.findOne(); -// TODO SERVER-45408: uncomment once we enable serialization of the term field. -// assert.eq(config.term, 1); +assert.eq(config.term, 1); replTest.stopSet(); }());
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