3db9d1338c
No functional changes, just converting everything to use the JSON-based constructor. Also moves some sharding-specific tests out of noPassthroughWithMongod and under the sharding suite.
67 lines
2.2 KiB
JavaScript
67 lines
2.2 KiB
JavaScript
// cursor1.js
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// checks that cursors survive a chunk's move
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(function() {
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var s = new ShardingTest({ name: "sharding_cursor1", shards: 2 });
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s.config.settings.find().forEach( printjson )
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// create a sharded 'test.foo', for the moment with just one chunk
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s.adminCommand( { enablesharding: "test" } );
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s.ensurePrimaryShard('test', 'shard0001');
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s.adminCommand( { shardcollection: "test.foo", key: { _id: 1 } } )
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db = s.getDB( "test" );
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primary = s.getServer( "test" ).getDB( "test" );
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secondary = s.getOther( primary ).getDB( "test" );
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numObjs = 10;
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var bulk = db.foo.initializeUnorderedBulkOp();
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for (i=0; i < numObjs; i++){
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bulk.insert({ _id: i });
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}
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assert.writeOK(bulk.execute());
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assert.eq( 1, s.config.chunks.count() , "test requires collection to have one chunk initially" );
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// we'll split the collection in two and move the second chunk while three cursors are open
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// cursor1 still has more data in the first chunk, the one that didn't move
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// cursor2 buffered the last obj of the first chunk
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// cursor3 buffered data that was moved on the second chunk
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var cursor1 = db.foo.find().batchSize( 3 );
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assert.eq( 3 , cursor1.objsLeftInBatch() );
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var cursor2 = db.foo.find().batchSize( 5 );
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assert.eq( 5 , cursor2.objsLeftInBatch() );
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var cursor3 = db.foo.find().batchSize( 7 );
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assert.eq( 7 , cursor3.objsLeftInBatch() );
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s.adminCommand( { split: "test.foo" , middle : { _id : 5 } } );
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s.adminCommand( { movechunk : "test.foo" , find : { _id : 5 } , to : secondary.getMongo().name } );
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assert.eq( 2, s.config.chunks.count() );
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// the cursors should not have been affected
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assert.eq( numObjs , cursor1.itcount() , "c1" );
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assert.eq( numObjs , cursor2.itcount() , "c2" );
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assert.eq( numObjs , cursor3.itcount() , "c3" );
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// test timeout
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gc(); gc();
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cur = db.foo.find().batchSize( 2 )
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assert( cur.next() , "T1" )
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assert( cur.next() , "T2" );
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assert.commandWorked(s.admin.runCommand({
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setParameter: 1,
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cursorTimeoutMillis: 10000 // 10 seconds.
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}));
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before = db.serverStatus().metrics.cursor;
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printjson( before )
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sleep( 6000 )
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assert( cur.next() , "T3" )
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assert( cur.next() , "T4" );
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sleep( 24000 )
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assert.throws( function(){ cur.next(); } , null , "T5" )
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after = db.serverStatus().metrics.cursor;
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gc(); gc()
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s.stop();
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})();
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