n3nash commented on a change in pull request #996: Fixes to ensure MOR incr
pull provides consistent results
URL: https://github.com/apache/incubator-hudi/pull/996#discussion_r344365431
##########
File path:
hudi-common/src/main/java/org/apache/hudi/common/table/timeline/HoodieActiveTimeline.java
##########
@@ -58,19 +59,28 @@
public static final SimpleDateFormat COMMIT_FORMATTER = new
SimpleDateFormat("yyyyMMddHHmmss");
- public static final Set<String> VALID_EXTENSIONS_IN_ACTIVE_TIMELINE = new
HashSet<>(Arrays.asList(new String[] {
+ public static final Set<String> VALID_EXTENSIONS_IN_ACTIVE_TIMELINE = new
HashSet<>(Arrays.asList(new String[]{
COMMIT_EXTENSION, INFLIGHT_COMMIT_EXTENSION, DELTA_COMMIT_EXTENSION,
INFLIGHT_DELTA_COMMIT_EXTENSION,
SAVEPOINT_EXTENSION, INFLIGHT_SAVEPOINT_EXTENSION, CLEAN_EXTENSION,
INFLIGHT_CLEAN_EXTENSION,
INFLIGHT_COMPACTION_EXTENSION, REQUESTED_COMPACTION_EXTENSION,
INFLIGHT_RESTORE_EXTENSION, RESTORE_EXTENSION}));
private static final transient Logger log =
LogManager.getLogger(HoodieActiveTimeline.class);
protected HoodieTableMetaClient metaClient;
+ private static AtomicReference<String> lastInstantTime = new
AtomicReference<>();
/**
* Returns next commit time in the {@link #COMMIT_FORMATTER} format.
+ * Ensures each commit time is atleast 1 second apart since we create COMMIT
times at second granularity
*/
public static String createNewCommitTime() {
- return HoodieActiveTimeline.COMMIT_FORMATTER.format(new Date());
+ lastInstantTime.updateAndGet((oldVal) -> {
Review comment:
Hmm, I'm open to doing this since (fyi that might cause regression for
people who are listing hoodie directory and building tools on top but that's
the side effect of directly accessing files)
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