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(function() {
"use strict";
load("jstests/sharding/libs/find_chunks_util.js");
let st = new ShardingTest({shards: 2});
const mongosSession = st.s.startSession({retryWrites: true});
const sessionAdminDB = mongosSession.getDatabase('admin');
const sessionConfigDB = mongosSession.getDatabase('config');
assert.commandWorked(sessionAdminDB.runCommand({enableSharding: 'test'}));
st.ensurePrimaryShard('test', st.shard0.shardName);
assert.commandWorked(
sessionAdminDB.runCommand({addShardToZone: st.shard1.shardName, zone: 'finalDestination'}));
////////////////////////////////////////////////////////////////////////////
// Ranged shard key
assert.commandWorked(sessionAdminDB.runCommand({shardCollection: 'test.range', key: {x: 1}}));
assert.commandWorked(sessionAdminDB.runCommand({split: 'test.range', middle: {x: 0}}));
let chunkColl = sessionConfigDB.chunks;
let testRangeColl = sessionConfigDB.collections.findOne({_id: 'test.range'});
if (testRangeColl.timestamp) {
assert.commandWorked(
chunkColl.update({uuid: testRangeColl.uuid, min: {x: 0}}, {$set: {jumbo: true}}));
} else {
assert.commandWorked(chunkColl.update({ns: 'test.range', min: {x: 0}}, {$set: {jumbo: true}}));
}
let jumboChunk = findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.range', {min: {x: 0}});
assert(jumboChunk.jumbo, tojson(jumboChunk));
let jumboMajorVersionBefore = jumboChunk.lastmod.getTime();
// Target non-jumbo chunk should not affect real jumbo chunk.
assert.commandWorked(sessionAdminDB.runCommand({clearJumboFlag: 'test.range', find: {x: -1}}));
jumboChunk = findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.range', {min: {x: 0}});
assert(jumboChunk.jumbo, tojson(jumboChunk));
assert.eq(jumboMajorVersionBefore, jumboChunk.lastmod.getTime());
// Target real jumbo chunk should bump version.
assert.commandWorked(sessionAdminDB.runCommand({clearJumboFlag: 'test.range', find: {x: 1}}));
jumboChunk = findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.range', {min: {x: 0}});
assert(!jumboChunk.jumbo, tojson(jumboChunk));
assert.lt(jumboMajorVersionBefore, jumboChunk.lastmod.getTime());
////////////////////////////////////////////////////////////////////////////
// Hashed shard key
assert.commandWorked(sessionAdminDB.runCommand(
{shardCollection: 'test.hashed', key: {x: 'hashed'}, numInitialChunks: 2}));
let testHashedColl = sessionConfigDB.collections.findOne({_id: 'test.hashed'});
if (testHashedColl.timestamp) {
assert.commandWorked(
chunkColl.update({uuid: testHashedColl.uuid, min: {x: 0}}, {$set: {jumbo: true}}));
} else {
assert.commandWorked(chunkColl.update({ns: 'test.hashed', min: {x: 0}}, {$set: {jumbo: true}}));
}
jumboChunk = findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.hashed', {min: {x: 0}});
assert(jumboChunk.jumbo, tojson(jumboChunk));
jumboMajorVersionBefore = jumboChunk.lastmod.getTime();
// Target non-jumbo chunk should not affect real jumbo chunk.
let unrelatedChunk =
findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.hashed', {min: {x: MinKey}});
assert.commandWorked(sessionAdminDB.runCommand(
{clearJumboFlag: 'test.hashed', bounds: [unrelatedChunk.min, unrelatedChunk.max]}));
jumboChunk = findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.hashed', {min: {x: 0}});
assert(jumboChunk.jumbo, tojson(jumboChunk));
assert.eq(jumboMajorVersionBefore, jumboChunk.lastmod.getTime());
// Target real jumbo chunk should bump version.
assert.commandWorked(sessionAdminDB.runCommand(
{clearJumboFlag: 'test.hashed', bounds: [jumboChunk.min, jumboChunk.max]}));
jumboChunk = findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.hashed', {min: {x: 0}});
assert(!jumboChunk.jumbo, tojson(jumboChunk));
assert.lt(jumboMajorVersionBefore, jumboChunk.lastmod.getTime());
////////////////////////////////////////////////////////////////////////////
// Ensure clear jumbo flag stores the correct chunk version
assert.eq(undefined, jumboChunk.lastmodEpoch);
assert.eq(undefined, jumboChunk.lastmodTimestamp);
////////////////////////////////////////////////////////////////////////////
// Balancer with jumbo chunks behavior
// Forces a jumbo chunk to be on a wrong zone but balancer shouldn't be able to move it until
// jumbo flag is cleared.
st.stopBalancer();
if (testRangeColl.timestamp) {
assert.commandWorked(
chunkColl.update({uuid: testRangeColl.uuid, min: {x: 0}}, {$set: {jumbo: true}}));
} else {
assert.commandWorked(chunkColl.update({ns: 'test.range', min: {x: 0}}, {$set: {jumbo: true}}));
}
assert.commandWorked(sessionAdminDB.runCommand(
{updateZoneKeyRange: 'test.range', min: {x: 0}, max: {x: MaxKey}, zone: 'finalDestination'}));
let chunk = findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.range', {min: {x: 0}});
assert(chunk.jumbo, tojson(chunk));
assert.eq(st.shard0.shardName, chunk.shard);
st.forEachConfigServer((conn) => {
conn.adminCommand({
configureFailPoint: 'overrideBalanceRoundInterval',
mode: 'alwaysOn',
data: {intervalMs: 200}
});
});
let waitForBalancerToRun = function() {
let lastRoundNumber =
assert.commandWorked(sessionAdminDB.runCommand({balancerStatus: 1})).numBalancerRounds;
st.startBalancer();
assert.soon(function() {
let res = assert.commandWorked(sessionAdminDB.runCommand({balancerStatus: 1}));
return res.mode == "full" && res.numBalancerRounds - lastRoundNumber > 1;
});
st.stopBalancer();
};
waitForBalancerToRun();
chunk = findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.range', {min: {x: 0}});
assert.eq(st.shard0.shardName, chunk.shard);
assert.commandWorked(sessionAdminDB.runCommand({clearJumboFlag: 'test.range', find: {x: 0}}));
waitForBalancerToRun();
chunk = findChunksUtil.findOneChunkByNs(sessionConfigDB, 'test.range', {min: {x: 0}});
assert.eq(st.shard1.shardName, chunk.shard);
st.stop();
})();
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