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https://github.com/mongodb/mongo.git
synced 2024-12-01 09:32:32 +01:00
130 lines
3.9 KiB
JavaScript
130 lines
3.9 KiB
JavaScript
// Basic pairing test
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var baseName = "jstests_pair1test";
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ismaster = function( n ) {
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var im = n.getDB( "admin" ).runCommand( { "ismaster" : 1 } );
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// print( "ismaster: " + tojson( im ) );
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assert( im );
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return im.ismaster;
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}
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var writeOneIdx = 0;
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writeOne = function( n ) {
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n.getDB( baseName ).z.save( { _id: new ObjectId(), i: ++writeOneIdx } );
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}
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getCount = function( n ) {
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return n.getDB( baseName ).z.find( { i: writeOneIdx } ).toArray().length;
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}
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checkWrite = function( m, s ) {
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writeOne( m );
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assert.eq( 1, getCount( m ) );
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s.setSlaveOk();
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assert.soon( function() {
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if ( -1 == s.getDBNames().indexOf( baseName ) )
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return false;
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if ( -1 == s.getDB( baseName ).getCollectionNames().indexOf( "z" ) )
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return false;
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return 1 == getCount( s );
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} );
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}
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// check that slave reads and writes are guarded
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checkSlaveGuard = function( s ) {
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var t = s.getDB( baseName + "-temp" ).temp;
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assert.throws( t.find().count, {}, "not master" );
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assert.throws( t.find(), {}, "not master", "find did not assert" );
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checkError = function() {
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assert.eq( "not master", s.getDB( "admin" ).getLastError() );
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s.getDB( "admin" ).resetError();
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}
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s.getDB( "admin" ).resetError();
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t.save( {x:1} );
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checkError();
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t.update( {}, {x:2}, true );
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checkError();
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t.remove( {x:0} );
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checkError();
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}
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doTest = function( signal ) {
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// spec small oplog for fast startup on 64bit machines
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a = startMongod( "--port", "27018", "--dbpath", "/data/db/" + baseName + "-arbiter" );
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l = startMongod( "--port", "27019", "--dbpath", "/data/db/" + baseName + "-left", "--pairwith", "127.0.0.1:27020", "127.0.0.1:27018", "--oplogSize", "1" );
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r = startMongod( "--port", "27020", "--dbpath", "/data/db/" + baseName + "-right", "--pairwith", "127.0.0.1:27019", "127.0.0.1:27018", "--oplogSize", "1" );
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assert.soon( function() {
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am = ismaster( a );
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lm = ismaster( l );
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rm = ismaster( r );
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assert( am == 1 );
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assert( lm == -1 || lm == 0 );
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assert( rm == -1 || rm == 0 || rm == 1 );
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return ( lm == 0 && rm == 1 );
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} );
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checkSlaveGuard( l );
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checkWrite( r, l );
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stopMongod( 27020, signal );
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assert.soon( function() {
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lm = ismaster( l );
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assert( lm == 0 || lm == 1 );
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return ( lm == 1 );
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} );
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r = startMongod( "--port", "27020", "--dbpath", "/data/db/" + baseName + "-right", "--pairwith", "127.0.0.1:27019", "127.0.0.1:27018", "--oplogSize", "1" );
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assert.soon( function() {
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lm = ismaster( l );
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rm = ismaster( r );
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assert( lm == 1 );
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assert( rm == -1 || rm == 0 );
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return ( rm == 0 );
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} );
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// Once this returns, the initial sync for r will have completed.
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checkWrite( l, r );
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stopMongod( 27019, signal );
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assert.soon( function() {
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rm = ismaster( r );
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assert( rm == 0 || rm == 1 );
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return ( rm == 1 );
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} );
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l = startMongod( "--port", "27019", "--dbpath", "/data/db/" + baseName + "-left", "--pairwith", "127.0.0.1:27020", "127.0.0.1:27018", "--oplogSize", "1" );
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assert.soon( function() {
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lm = ismaster( l );
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rm = ismaster( r );
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assert( lm == -1 || lm == 0 );
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assert( rm == 1 );
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return ( lm == 0 && rm == 1 );
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} );
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checkWrite( r, l );
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stopMongod( 27018 );
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stopMongod( 27019 );
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stopMongod( 27020 );
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}
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doTest( 15 ); // SIGTERM
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doTest( 9 ); // SIGKILL
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