mongo/jstests/sharding/printShardingStatus.js

285 lines
10 KiB
JavaScript

// Check that the output from printShardingStatus() (aka sh.status())
// contains important information that it should, like the major section
// headings and the names of sharded collections and their shard keys.
import {ShardingTest} from "jstests/libs/shardingtest.js";
const MONGOS_COUNT = 2;
let st = new ShardingTest({shards: 1, mongos: MONGOS_COUNT});
let standalone = MongoRunner.runMongod();
let mongos = st.s0;
let admin = mongos.getDB("admin");
// Wait for the background thread from the mongos to insert their entries before beginning
// the tests.
assert.soon(function () {
return MONGOS_COUNT == mongos.getDB("config").mongos.count();
});
function grabStatusOutput(configdb, verbose) {
let res = print.captureAllOutput(function () {
return printShardingStatus(configdb, verbose);
});
let output = res.output.join("\n");
jsTestLog(output);
return output;
}
function assertPresentInOutput(output, content, what) {
assert(
output.includes(content),
what + ' "' + content + '" NOT present in output of ' + "printShardingStatus() (but it should be)",
);
}
function assertNotPresentInOutput(output, content, what) {
assert(
!output.includes(content),
what + ' "' + content + '" IS present in output of ' + "printShardingStatus() (but it should not be)",
);
}
////////////////////////
// Basic tests
////////////////////////
let dbName = "thisIsTheDatabase";
let collName = "thisIsTheCollection";
let shardKeyName = "thisIsTheShardKey";
let nsName = dbName + "." + collName;
assert.commandWorked(admin.runCommand({enableSharding: dbName}));
let key = {};
key[shardKeyName] = 1;
assert.commandWorked(admin.runCommand({shardCollection: nsName, key: key}));
function testBasic(output) {
assertPresentInOutput(output, "shards:", "section header");
assertPresentInOutput(output, "databases:", "section header");
assertPresentInOutput(output, "balancer:", "section header");
assertPresentInOutput(output, "active mongoses:", "section header");
assertNotPresentInOutput(output, "most recently active mongoses:", "section header");
assertPresentInOutput(output, dbName, "database");
assertPresentInOutput(output, collName, "collection");
assertPresentInOutput(output, shardKeyName, "shard key");
}
function testBasicNormalOnly(output) {
assertPresentInOutput(output, tojson(version) + " : 2\n", "active mongos version");
}
function testBasicVerboseOnly(output) {
assertPresentInOutput(output, '"mongoVersion" : ' + tojson(version), "active mongos version");
assertPresentInOutput(output, '"_id" : ' + tojson(s1Host), "active mongos hostname");
assertPresentInOutput(output, '"_id" : ' + tojson(s2Host), "active mongos hostname");
}
let buildinfo = assert.commandWorked(mongos.adminCommand("buildinfo"));
let serverStatus1 = assert.commandWorked(mongos.adminCommand("serverStatus"));
let serverStatus2 = assert.commandWorked(st.s1.adminCommand("serverStatus"));
var version = buildinfo.version;
var s1Host = serverStatus1.host;
var s2Host = serverStatus2.host;
// Normal, active mongoses
let outputNormal = grabStatusOutput(st.config, false);
testBasic(outputNormal);
testBasicNormalOnly(outputNormal);
let outputVerbose = grabStatusOutput(st.config, true);
testBasic(outputVerbose);
testBasicVerboseOnly(outputVerbose);
// Take a copy of the config db, in order to test the harder-to-setup cases below.
// Copy into a standalone to also test running printShardingStatus() against a config dump.
let config = mongos.getDB("config");
let configCopy = standalone.getDB("configCopy");
config.getCollectionInfos().forEach(function (c) {
// It's illegal to copy the system collections.
if (
[
"system.indexBuilds",
"system.preimages",
"system.change_collection",
"cache.chunks.config.system.sessions",
"system.sessions",
"system.sharding_ddl_coordinators",
].includes(c.name)
) {
return;
}
// Create collection with options.
assert.commandWorked(configCopy.createCollection(c.name, c.options));
// Clone the docs.
config
.getCollection(c.name)
.find()
.hint({_id: 1})
.forEach(function (d) {
assert.commandWorked(configCopy.getCollection(c.name).insert(d));
});
// Build the indexes.
config
.getCollection(c.name)
.getIndexes()
.forEach(function (i) {
let key = i.key;
delete i.key;
delete i.ns;
delete i.v;
assert.commandWorked(configCopy.getCollection(c.name).createIndex(key, i));
});
});
// Inactive mongoses
// Make the first ping be older than now by 1 second more than the threshold
// Make the second ping be older still by the same amount again
let pingAdjustMs = 60000 + 1000;
let then = new Date();
then.setTime(then.getTime() - pingAdjustMs);
configCopy.mongos.update({_id: s1Host}, {$set: {ping: then}});
then.setTime(then.getTime() - pingAdjustMs);
configCopy.mongos.update({_id: s2Host}, {$set: {ping: then}});
let output = grabStatusOutput(configCopy, false);
assertPresentInOutput(output, "most recently active mongoses:", "section header");
assertPresentInOutput(output, tojson(version) + " : 1\n", "recent mongos version");
output = grabStatusOutput(configCopy, true);
assertPresentInOutput(output, "most recently active mongoses:", "section header");
assertPresentInOutput(output, '"_id" : ' + tojson(s1Host), "recent mongos hostname");
assertNotPresentInOutput(output, '"_id" : ' + tojson(s2Host), "old mongos hostname");
// Older mongoses
configCopy.mongos.remove({_id: s1Host});
output = grabStatusOutput(configCopy, false);
assertPresentInOutput(output, "most recently active mongoses:", "section header");
assertPresentInOutput(output, tojson(version) + " : 1\n", "recent mongos version");
output = grabStatusOutput(configCopy, true);
assertPresentInOutput(output, "most recently active mongoses:", "section header");
assertNotPresentInOutput(output, '"_id" : ' + tojson(s1Host), "removed mongos hostname");
assertPresentInOutput(output, '"_id" : ' + tojson(s2Host), "recent mongos hostname");
// No mongoses at all
configCopy.mongos.remove({});
output = grabStatusOutput(configCopy, false);
assertPresentInOutput(output, "most recently active mongoses:\n none", "no mongoses");
output = grabStatusOutput(configCopy, true);
assertPresentInOutput(output, "most recently active mongoses:\n none", "no mongoses (verbose)");
assert(mongos.getDB(dbName).dropDatabase());
////////////////////////
// Extended tests
////////////////////////
let testCollDetailsNum = 0;
function testCollDetails(args) {
if (args === undefined || typeof args != "object") {
args = {};
}
let getCollName = function (x) {
return "test.test" + x.zeroPad(4);
};
let collName = getCollName(testCollDetailsNum);
let cmdObj = {shardCollection: collName, key: {_id: 1}};
if (args.unique) {
cmdObj.unique = true;
}
assert.commandWorked(admin.runCommand(cmdObj));
let originalValues = {};
if (args.hasOwnProperty("unique")) {
originalValues["unique"] = mongos.getDB("config").collections.findOne({_id: collName}).unique;
assert.commandWorked(
mongos.getDB("config").collections.update({_id: collName}, {$set: {"unique": args.unique}}),
);
}
if (args.hasOwnProperty("noBalance")) {
originalValues["noBalance"] = mongos.getDB("config").collections.findOne({_id: collName}).noBalance;
assert.commandWorked(
mongos.getDB("config").collections.update({_id: collName}, {$set: {"noBalance": args.noBalance}}),
);
}
let output = grabStatusOutput(st.config);
assertPresentInOutput(output, collName, "collection");
// If any of the previous collection names are present, then their optional indicators
// might also be present. This might taint the results when we go searching through
// the output.
// This also means that earlier collNames can't be a prefix of later collNames.
for (let i = 0; i < testCollDetailsNum; i++) {
assertNotPresentInOutput(output, getCollName(i), "previous collection");
}
assertPresentInOutput(output, "unique: " + !!args.unique, "unique shard key indicator");
if (args.hasOwnProperty("unique") && typeof args.unique != "boolean") {
// non-bool: actual value must be shown
assertPresentInOutput(output, tojson(args.unique), "unique shard key indicator (non bool)");
// Restore original value.
assert.commandWorked(
mongos.getDB("config").collections.update({_id: collName}, {$set: {"unique": originalValues.unique}}),
);
}
assertPresentInOutput(output, "balancing: " + !args.noBalance, "balancing indicator (inverse of noBalance)");
if (args.hasOwnProperty("noBalance") && typeof args.noBalance != "boolean") {
// non-bool: actual value must be shown
assertPresentInOutput(output, tojson(args.noBalance), "noBalance indicator (non bool)");
// Restore original value.
assert.commandWorked(
mongos.getDB("config").collections.update({_id: collName}, {$set: {"noBalance": originalValues.noBalance}}),
);
}
try {
mongos.getCollection(collName).drop();
} catch (e) {
// Ignore drop errors because they are from the illegal values in the collection entry
assert.commandWorked(mongos.getDB("config").collections.remove({_id: collName}));
}
testCollDetailsNum++;
}
assert.commandWorked(admin.runCommand({enableSharding: "test"}));
// Defaults
testCollDetails({});
// Expected values
testCollDetails({unique: false, noBalance: false});
testCollDetails({unique: true, noBalance: true});
// Unexpected truthy values
testCollDetails({unique: "truthy unique value 1", noBalance: "truthy noBalance value 1"});
testCollDetails({unique: 1, noBalance: 1});
testCollDetails({unique: -1, noBalance: -1});
testCollDetails({unique: {}, noBalance: {}});
// Unexpected falsy values
testCollDetails({unique: "", noBalance: ""});
testCollDetails({unique: 0, noBalance: 0});
assert(mongos.getDB("test").dropDatabase());
MongoRunner.stopMongod(standalone);
st.stop();