arp7 commented on a change in pull request #1033: HDDS-1391 : Add ability in OM
to serve delta updates through an API.
URL: https://github.com/apache/hadoop/pull/1033#discussion_r307529200
##########
File path:
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManager.java
##########
@@ -1395,8 +1397,41 @@ public void testDBKeyMayExist() throws Exception {
RDBStore rdbStore = (RDBStore) cluster.getOzoneManager()
.getMetadataManager().getStore();
RocksDB db = rdbStore.getDb();
- UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
+ OmKeyInfo keyInfo = getNewOmKeyInfo();
+ OmKeyInfoCodec omKeyInfoCodec = new OmKeyInfoCodec();
+
+ db.put(StringUtils.getBytesUtf16("OMKey1"),
+ omKeyInfoCodec.toPersistedFormat(keyInfo));
+
+ StringBuilder sb = new StringBuilder();
+ Assert.assertTrue(db.keyMayExist(StringUtils.getBytesUtf16("OMKey1"),
+ sb));
+ Assert.assertTrue(sb.length() > 0);
+ }
+
+
+ @Test
+ public void testGetOMDBUpdates() throws IOException {
+
+ DBUpdatesRequest dbUpdatesRequest =
+ DBUpdatesRequest.newBuilder().setSequenceNumber(0).build();
+
+ DBUpdatesWrapper dbUpdates =
+ cluster.getOzoneManager().getDBUpdates(dbUpdatesRequest);
+ Assert.assertTrue(dbUpdates.getData().isEmpty());
+
+ //Write data to OM.
+ OmKeyInfo keyInfo = getNewOmKeyInfo();
+ Assert.assertNotNull(keyInfo);
+ dbUpdates =
+ cluster.getOzoneManager().getDBUpdates(dbUpdatesRequest);
+ Assert.assertFalse(dbUpdates.getData().isEmpty());
Review comment:
Should we unpack the update and check the contents to ensure they were
shipped correctly? Not sure if it will be straightforward to do.
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