58 lines
1.9 KiB
JavaScript
58 lines
1.9 KiB
JavaScript
/**
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* Test migrating a big chunk while deletions are happening within that chunk. Test is slightly
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* non-deterministic, since removes could happen before migrate starts. Protect against that by
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* making chunk very large.
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*
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* This test is labeled resource intensive because its total io_write is 88MB compared to a median
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* of 5MB across all sharding tests in wiredTiger.
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* @tags: [resource_intensive]
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*/
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function isSlow(mongoInstance) {
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const buildInfo = assert.commandWorked(mongoInstance.adminCommand({"buildInfo": 1}));
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const isCodeCoverageEnabled = buildInfo.buildEnvironment.ccflags.includes('-ftest-coverage');
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const isSanitizerEnabled = buildInfo.buildEnvironment.ccflags.includes('-fsanitize');
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return isCodeCoverageEnabled || isSanitizerEnabled;
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}
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var st = new ShardingTest({shards: 2, mongos: 1});
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const slowTestVariant = isSlow(st.s0) || isSlow(st.shard0) || isSlow(st.shard1);
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var dbname = "test";
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var coll = "foo";
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var ns = dbname + "." + coll;
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assert.commandWorked(
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st.s0.adminCommand({enablesharding: dbname, primaryShard: st.shard1.shardName}));
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var t = st.s0.getDB(dbname).getCollection(coll);
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var bulk = t.initializeUnorderedBulkOp();
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for (var i = 0; i < 200000; i++) {
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bulk.insert({a: i});
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}
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assert.commandWorked(bulk.execute());
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// enable sharding of the collection. Only 1 chunk.
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t.createIndex({a: 1});
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assert.commandWorked(st.s0.adminCommand({shardcollection: ns, key: {a: 1}}));
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// start a parallel shell that deletes things
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var join = startParallelShell("db." + coll + ".remove({});", st.s0.port);
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// migrate while deletions are happening
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try {
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assert.commandWorked(st.s0.adminCommand(
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{moveChunk: ns, find: {a: 1}, to: st.getOther(st.getPrimaryShard(dbname)).name}));
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} catch (e) {
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const expectedFailureMessage = "startCommit timed out waiting for the catch up completion.";
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if (!slowTestVariant || !e.message.match(expectedFailureMessage)) {
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throw e;
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}
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}
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join();
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st.stop();
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