/**
* Test that if we fail a flush, abort gets set on close.
*
* @see <a href="https://issues.apache.org/jira/browse/HBASE-4270">HBASE-4270</a>
* @throws IOException
* @throws NodeExistsException
* @throws KeeperException
*/
@Test
public void testFailedFlushAborts() throws IOException, NodeExistsException, KeeperException {
final Server server = new MockServer(HTU, false);
final RegionServerServices rss = HTU.createMockRegionServerService();
HTableDescriptor htd = TEST_HTD;
final HRegionInfo hri =
new HRegionInfo(htd.getTableName(), HConstants.EMPTY_END_ROW, HConstants.EMPTY_END_ROW);
HRegion region = HTU.createLocalHRegion(hri, htd);
try {
assertNotNull(region);
// Spy on the region so can throw exception when close is called.
HRegion spy = Mockito.spy(region);
final boolean abort = false;
Mockito.when(spy.close(abort)).thenThrow(new RuntimeException("Mocked failed close!"));
// The CloseRegionHandler will try to get an HRegion that corresponds
// to the passed hri -- so insert the region into the online region Set.
rss.addToOnlineRegions(spy);
// Assert the Server is NOT stopped before we call close region.
assertFalse(server.isStopped());
CloseRegionHandler handler = new CloseRegionHandler(server, rss, hri, false, false, -1);
boolean throwable = false;
try {
handler.process();
} catch (Throwable t) {
throwable = true;
} finally {
assertTrue(throwable);
// Abort calls stop so stopped flag should be set.
assertTrue(server.isStopped());
}
} finally {
HRegion.closeHRegion(region);
}
}
/**
* Test if the region can be closed properly
*
* @throws IOException
* @throws NodeExistsException
* @throws KeeperException
* @throws org.apache.hadoop.hbase.exceptions.DeserializationException
*/
@Test
public void testCloseRegion()
throws IOException, NodeExistsException, KeeperException, DeserializationException {
final Server server = new MockServer(HTU);
final RegionServerServices rss = HTU.createMockRegionServerService();
HTableDescriptor htd = TEST_HTD;
HRegionInfo hri = TEST_HRI;
// open a region first so that it can be closed later
OpenRegion(server, rss, htd, hri);
// close the region
// Create it CLOSING, which is what Master set before sending CLOSE RPC
int versionOfClosingNode =
ZKAssign.createNodeClosing(server.getZooKeeper(), hri, server.getServerName());
// The CloseRegionHandler will validate the expected version
// Given it is set to correct versionOfClosingNode,
// CloseRegionHandlerit should be RS_ZK_REGION_CLOSED
CloseRegionHandler handler =
new CloseRegionHandler(server, rss, hri, false, true, versionOfClosingNode);
handler.process();
// Handler should have transitioned it to RS_ZK_REGION_CLOSED
RegionTransition rt =
RegionTransition.parseFrom(ZKAssign.getData(server.getZooKeeper(), hri.getEncodedName()));
assertTrue(rt.getEventType().equals(EventType.RS_ZK_REGION_CLOSED));
}
