*/
@Test
public void testRegionServerAbortionDueToFailureTransitioningToOpened()
throws IOException, NodeExistsException, KeeperException {
final Server server = new MockServer(HTU);
final RegionServerServices rss = HTU.createMockRegionServerService();
HTableDescriptor htd = TEST_HTD;
final HRegionInfo hri = TEST_HRI;
HRegion region =
HRegion.createHRegion(hri, HTU.getDataTestDir(), HTU
.getConfiguration(), htd);
assertNotNull(region);
try {
ZkCoordinatedStateManager csm = new ZkCoordinatedStateManager();
csm.initialize(server);
csm.start();
ZkOpenRegionCoordination.ZkOpenRegionDetails zkCrd =
new ZkOpenRegionCoordination.ZkOpenRegionDetails();
zkCrd.setServerName(server.getServerName());
ZkOpenRegionCoordination openRegionCoordination =
new ZkOpenRegionCoordination(csm, server.getZooKeeper()) {
@Override
public boolean transitionToOpened(final HRegion r, OpenRegionDetails ord)
throws IOException {
// remove znode simulating intermittent zookeeper connection issue
ZooKeeperWatcher zkw = server.getZooKeeper();
String node = ZKAssign.getNodeName(zkw, hri.getEncodedName());
try {
ZKUtil.deleteNodeFailSilent(zkw, node);
} catch (KeeperException e) {
throw new RuntimeException("Ugh failed delete of " + node, e);
}
// then try to transition to OPENED
return super.transitionToOpened(r, ord);
}
};
OpenRegionHandler handler = new OpenRegionHandler(server, rss, hri, htd,
openRegionCoordination, zkCrd);
rss.getRegionsInTransitionInRS().put(
hri.getEncodedNameAsBytes(), Boolean.TRUE);
// Call process without first creating OFFLINE region in zk, see if
// exception or just quiet return (expected).
handler.process();
rss.getRegionsInTransitionInRS().put(
hri.getEncodedNameAsBytes(), Boolean.TRUE);
ZKAssign.createNodeOffline(server.getZooKeeper(), hri, server.getServerName());
// Call process again but this time yank the zk znode out from under it
// post OPENING; again will expect it to come back w/o NPE or exception.
handler.process();