83 lines
2.4 KiB
JavaScript
83 lines
2.4 KiB
JavaScript
// Test one master replicating to two slaves
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//
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// There is no automatic fail-over in a master/slave deployment, so if the master goes down, no new
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// master will be elected. Therefore if the master is using an ephemeral storage engine, it cannot
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// be restarted without losing all data. This test expects that restarting the master will maintain
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// the node's data, so cannot be run with ephemeral storage engines.
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// @tags: [requires_persistence]
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var baseName = "jstests_repl6test";
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soonCount = function( m, count ) {
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assert.soon( function() {
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return m.getDB( baseName ).a.find().count() == count;
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}, "expected count: " + count + " from : " + m );
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}
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doTest = function( signal ) {
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ports = allocatePorts( 3 );
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ms1 = new ReplTest( "repl6tests-1", [ ports[ 0 ], ports[ 1 ] ] );
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ms2 = new ReplTest( "repl6tests-2", [ ports[ 0 ], ports[ 2 ] ] );
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m = ms1.start( true );
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s1 = ms1.start( false );
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s2 = ms2.start( false );
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am = m.getDB( baseName ).a
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for( i = 0; i < 1000; ++i )
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am.save( { _id: new ObjectId(), i: i } );
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soonCount( s1, 1000 );
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soonCount( s2, 1000 );
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check = function( as ) {
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assert.eq( 1, as.find( { i: 0 } ).count() );
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assert.eq( 1, as.find( { i: 999 } ).count() );
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}
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as = s1.getDB( baseName ).a
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check( as );
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as = s2.getDB( baseName ).a
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check( as );
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ms1.stop( false, signal );
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ms2.stop( false, signal );
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for( i = 1000; i < 1010; ++i )
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am.save( { _id: new ObjectId(), i: i } );
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s1 = ms1.start( false, null, true );
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soonCount( s1, 1010 );
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as = s1.getDB( baseName ).a
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assert.eq( 1, as.find( { i: 1009 } ).count() );
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ms1.stop( true, signal );
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// Need to pause here on Windows, since killing processes does not synchronously close their
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// open file handles.
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sleep(5000);
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m = ms1.start( true, null, true );
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am = m.getDB( baseName ).a
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for( i = 1010; i < 1020; ++i )
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am.save( { _id: new ObjectId(), i: i } );
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soonCount( s1, 1020 );
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assert.eq( 1, as.find( { i: 1019 } ).count() );
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s2 = ms2.start( false, null, true );
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soonCount( s2, 1020 );
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as = s2.getDB( baseName ).a
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assert.eq( 1, as.find( { i: 1009 } ).count() );
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assert.eq( 1, as.find( { i: 1019 } ).count() );
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ms1.stop();
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ms2.stop( false );
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}
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doTest( 15 ); // SIGTERM
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