706ac90265
The default ShardingTest verbosity is currently zero, but we have many tests, which bump it to 1 and even higher. Since verbosity level of 0 is sometimes insufficient for investigating transient failures, this change makes the default to be 1 and removes all places, which explicitly make it 1 or higher.
82 lines
2.7 KiB
JavaScript
82 lines
2.7 KiB
JavaScript
// SERVER-2068
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(function() {
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var chunkSize = 25
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var s = new ShardingTest({ name: "migrate_cursor1",
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shards: 2,
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mongos: 1,
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other: { chunkSize : chunkSize } });
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s.adminCommand( { enablesharding : "test" } );
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db = s.getDB( "test" )
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s.ensurePrimaryShard('test', 'shard0001');
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t = db.foo
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bigString = ""
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stringSize = 1024;
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while ( bigString.length < stringSize )
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bigString += "asdasdas";
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stringSize = bigString.length
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docsPerChunk = Math.ceil( ( chunkSize * 1024 * 1024 ) / ( stringSize - 12 ) )
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numChunks = 5
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numDocs = 20 * docsPerChunk
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print( "stringSize: " + stringSize + " docsPerChunk: " + docsPerChunk + " numDocs: " + numDocs )
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var bulk = t.initializeUnorderedBulkOp();
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for (var i = 0; i < numDocs; i++){
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bulk.insert({ _id: i, s: bigString });
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}
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assert.writeOK(bulk.execute());
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s.adminCommand( { shardcollection : "test.foo" , key : { _id : 1 } } );
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assert.lt( numChunks , s.config.chunks.find().count() , "initial 1" );
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primary = s.getServer( "test" ).getDB( "test" ).foo;
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secondaryName = s.getOther( primary.name )
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secondary = secondaryName.getDB( "test" ).foo;
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assert.eq( numDocs , primary.count() , "initial 2" );
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assert.eq( 0 , secondary.count() , "initial 3" );
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assert.eq( numDocs , t.count() , "initial 4" )
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x = primary.find( { _id : { $lt : 500 } } ).batchSize(2)
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x.next(); // 1. Create an open cursor
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print("start moving chunks...")
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// 2. Move chunk from s0 to s1 without waiting for deletion.
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// Command returns, but the deletion on s0 will block due to the open cursor.
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s.adminCommand( { moveChunk : "test.foo" , find : { _id : 0 } , to : secondaryName.name } )
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// 3. Start second moveChunk command from s0 to s1.
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// This moveChunk should not observe the above deletion as a 'mod', transfer it to s1 and cause deletion on s1.
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// This moveChunk will wait for deletion.
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join = startParallelShell( "db.x.insert( {x:1} ); db.adminCommand( { moveChunk : 'test.foo' , find : { _id : " + docsPerChunk * 3 + " } , to : '" + secondaryName.name + "', _waitForDelete: true } )" )
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assert.soon( function(){ return db.x.count() > 0; } , "XXX" , 30000 , 1 )
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// 4. Close the cursor to enable chunk deletion.
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print( "itcount: " + x.itcount() )
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x = null;
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for ( i=0; i<5; i++ ) gc()
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print( "cursor should be gone" )
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// 5. Waiting for the second moveChunk to finish its deletion.
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// Note the deletion for the first moveChunk may not be finished.
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join();
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//assert.soon( function(){ return numDocs == t.count(); } , "at end 1" )
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// 6. Check the total number of docs on both shards to make sure no doc is lost.
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// Use itcount() to ignore orphan docments.
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assert.eq( numDocs , t.find().itcount() , "at end 2" )
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s.stop();
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})();
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