public static void upgradeClusterMembers(
TestHazelcastInstanceFactory factory,
final HazelcastInstance[] membersToUpgrade,
MemberVersion version,
Config config,
boolean assertClusterSize) {
try {
System.setProperty(HAZELCAST_INTERNAL_OVERRIDE_VERSION, version.toString());
// upgrade one by one each member of the cluster to the next version
for (int i = 0; i < membersToUpgrade.length; i++) {
membersToUpgrade[i].shutdown();
waitAllForSafeState(membersToUpgrade);
// if new node's version is incompatible, then node startup will fail with
// IllegalStateException
membersToUpgrade[i] = factory.newHazelcastInstance(config);
waitAllForSafeState(membersToUpgrade);
if (assertClusterSize) {
// assert all members are in the cluster
assertTrueEventually(
new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(
membersToUpgrade.length,
membersToUpgrade[0].getCluster().getMembers().size());
}
},
30);
}
}
} finally {
System.clearProperty(HAZELCAST_INTERNAL_OVERRIDE_VERSION);
}
}
// return a new HazelcastInstance at given version
public static HazelcastInstance newHazelcastInstance(
TestHazelcastInstanceFactory factory, MemberVersion version, Config config) {
try {
System.setProperty(HAZELCAST_INTERNAL_OVERRIDE_VERSION, version.toString());
return factory.newHazelcastInstance(config);
} finally {
System.clearProperty(HAZELCAST_INTERNAL_OVERRIDE_VERSION);
}
}
