1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
// test replace peer on master
var baseName = "jstests_replacepeer1test";
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 ] );
rightMaster = ( rp.master().host == rp.right().host );
checkWrite( rp.master(), rp.slave() );
rp.killNode( rp.slave(), signal );
writeOne( rp.master() );
assert.commandWorked( rp.master().getDB( "admin" ).runCommand( {replacepeer:1} ) );
rp.killNode( rp.master(), signal );
rp.killNode( rp.arbiter(), signal );
if ( rightMaster ) {
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" );
} else {
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" );
}
rp.start( true );
rp.waitForSteadyState( [ 1, 0 ] );
rp.slave().setSlaveOk();
assert.eq( 2, rp.master().getDB( baseName ).z.find().toArray().length );
assert.eq( 2, rp.slave().getDB( baseName ).z.find().toArray().length );
checkWrite( rp.master(), rp.slave() );
assert.eq( 3, rp.slave().getDB( baseName ).z.find().toArray().length );
ports.forEach( function( x ) { stopMongod( x ); } );
}
doTest( 15 ); // SIGTERM
doTest( 9 ); // SIGKILL
|
