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authorKjetil Ørbekk <kjetil.orbekk@gmail.com>2012-03-20 14:34:26 +0100
committerKjetil Ørbekk <kjetil.orbekk@gmail.com>2012-03-20 14:34:26 +0100
commit4ad09d6604aa6c2091824a239f9c75a06aef0b24 (patch)
tree8d2a8fcd1d63efda1314f801e901593b014b3db2 /same/src
parent409dfe838e8ae30e2512256852c1fef31f3255b4 (diff)
Start master election when update fails.
Diffstat (limited to 'same/src')
-rw-r--r--same/src/main/java/com/orbekk/same/Client.java1
-rw-r--r--same/src/test/java/com/orbekk/same/FunctionalTest.java34
2 files changed, 34 insertions, 1 deletions
diff --git a/same/src/main/java/com/orbekk/same/Client.java b/same/src/main/java/com/orbekk/same/Client.java
index ceacd12..1a9fb7f 100644
--- a/same/src/main/java/com/orbekk/same/Client.java
+++ b/same/src/main/java/com/orbekk/same/Client.java
@@ -72,6 +72,7 @@ public class Client implements DiscoveryListener {
String e_ = throwableToString(e);
op.complete(DelayedOperation.Status.createError(
"Error contacting master. Update fails: " + e_));
+ startMasterElection();
}
return op;
}
diff --git a/same/src/test/java/com/orbekk/same/FunctionalTest.java b/same/src/test/java/com/orbekk/same/FunctionalTest.java
index ea920c4..5e0af41 100644
--- a/same/src/test/java/com/orbekk/same/FunctionalTest.java
+++ b/same/src/test/java/com/orbekk/same/FunctionalTest.java
@@ -14,6 +14,7 @@ import org.junit.Test;
import com.orbekk.paxos.PaxosService;
import com.orbekk.paxos.PaxosServiceImpl;
+import com.orbekk.util.DelayedOperation;
/** A functional test that runs with a master and several clients. */
public class FunctionalTest {
@@ -28,12 +29,14 @@ public class FunctionalTest {
List<Client> clients = new ArrayList<Client>();
TestConnectionManager connections = new TestConnectionManager();
TestBroadcaster broadcaster = new TestBroadcaster();
+ MasterServiceProxy masterServiceProxy;
@Before public void setUp() {
master = Master.create(connections,
broadcaster, masterUrl, "TestMaster");
+ masterServiceProxy = new MasterServiceProxy(master.getService());
connections.masterMap.put(masterUrl,
- master.getService());
+ masterServiceProxy);
client1 = newClient("TestClient1", "http://client1/ClientService.json");
vf1 = new VariableFactory(client1.getInterface());
client2 = newClient("TestClient2", "http://client2/ClientService.json");
@@ -155,4 +158,33 @@ public class FunctionalTest {
assertThat(client1.masterUrl, is(newMasterUrl));
assertThat(client2.masterUrl, is(newMasterUrl));
}
+
+ @Test public void masterFails() {
+ String newMasterUrl = "http://newMaster/MasterService.json";
+ final Master newMaster = Master.create(connections,
+ broadcaster, newMasterUrl, "TestMaster");
+ connections.masterMap.put(newMasterUrl, newMaster.getService());
+ joinClients();
+ MasterController controller = new MasterController() {
+ @Override
+ public synchronized void enableMaster(State lastKnownState,
+ int masterId) {
+ newMaster.resumeFrom(lastKnownState, masterId);
+ }
+ @Override
+ public void disableMaster() {
+ }
+ };
+ client1.setMasterController(controller);
+ client2.setMasterController(controller);
+ client3.setMasterController(controller);
+ Variable<String> x1 = vf1.createString("TestMasterFailure");
+ masterServiceProxy.setService(null);
+ assertThat(x1.set("Woop, woop").getStatus().getStatusCode(),
+ is(DelayedOperation.Status.ERROR));
+ performWork();
+ newMaster.performWork();
+ assertThat(client1.masterUrl, is(newMasterUrl));
+ assertThat(client2.masterUrl, is(newMasterUrl));
+ }
}