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// test replace peer on slave
var baseName = "jstests_replacepeer2test";
ismaster = function( n ) {
im = n.getDB( "admin" ).runCommand( { "ismaster" : 1 } );
// print( "ismaster: " + tojson( im ) );
assert( im );
return im.ismaster;
}
var writeOneIdx = 0;
writeOne = function( n ) {
n.getDB( baseName ).z.save( { _id: new ObjectId(), i: ++writeOneIdx } );
}
getCount = function( n ) {
return n.getDB( baseName ).z.find( { i: writeOneIdx } ).toArray().length;
}
checkWrite = function( m, s ) {
writeOne( m );
assert.eq( 1, getCount( m ) );
s.setSlaveOk();
assert.soon( function() {
return 1 == getCount( s );
} );
}
doTest = function( signal ) {
ports = allocatePorts( 4 );
a = new MongodRunner( ports[ 0 ], "/data/db/" + baseName + "-arbiter" );
l = new MongodRunner( ports[ 1 ], "/data/db/" + baseName + "-left", "127.0.0.1:" + ports[ 3 ], "127.0.0.1:" + ports[ 0 ] );
r = new MongodRunner( ports[ 3 ], "/data/db/" + baseName + "-right", "127.0.0.1:" + ports[ 1 ], "127.0.0.1:" + ports[ 0 ] );
rp = new ReplPair( l, r, a );
rp.start();
rp.waitForSteadyState( [ 1, 0 ] );
leftSlave = ( rp.slave().host == rp.left().host );
checkWrite( rp.master(), rp.slave() );
// allow slave to finish initial sync
assert.soon(
function() {
var res = rp.slave().getDB( "admin" ).runCommand( {replacepeer:1} );
if ( res.ok == 1 )
return true;
printjson( res );
return false;
}
);
// Should not be saved to slave.
writeOne( rp.master() );
// Make sure there would be enough time to save to l if we hadn't called replacepeer.
sleep( 10000 );
ports.forEach( function( x ) { stopMongod( x, signal ); } );
if ( leftSlave ) {
l = new MongodRunner( ports[ 1 ], "/data/db/" + baseName + "-left", "127.0.0.1:" + ports[ 2 ], "127.0.0.1:" + ports[ 0 ] );
o = new MongodRunner( ports[ 2 ], "/data/db/" + baseName + "-right", "127.0.0.1:" + ports[ 1 ], "127.0.0.1:" + ports[ 0 ] );
rp = new ReplPair( l, o, a );
resetDbpath( "/data/db/" + baseName + "-right" );
} else {
o = new MongodRunner( ports[ 2 ], "/data/db/" + baseName + "-left", "127.0.0.1:" + ports[ 3 ], "127.0.0.1:" + ports[ 0 ] );
r = new MongodRunner( ports[ 3 ], "/data/db/" + baseName + "-right", "127.0.0.1:" + ports[ 2 ], "127.0.0.1:" + ports[ 0 ] );
rp = new ReplPair( o, r, a );
resetDbpath( "/data/db/" + baseName + "-left" );
}
rp.start( true );
rp.waitForSteadyState( [ 1, 0 ] );
rp.slave().setSlaveOk();
assert.eq( 1, rp.slave().getDB( baseName ).z.find().toArray().length );
assert.eq( 1, rp.master().getDB( baseName ).z.find().toArray().length );
checkWrite( rp.master(), rp.slave() );
assert.eq( 2, rp.slave().getDB( baseName ).z.find().toArray().length );
ports.forEach( function( x ) { stopMongod( x ); } );
}
doTest( 15 ); // SIGTERM
doTest( 9 ); // SIGKILL
print("replace2Peer finishes");
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