RussellSpitzer commented on a change in pull request #2328:
URL: https://github.com/apache/iceberg/pull/2328#discussion_r593574551
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File path:
hive-metastore/src/main/java/org/apache/iceberg/hive/HiveTableOperations.java
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@@ -217,11 +239,40 @@ protected void doCommit(TableMetadata base, TableMetadata
metadata) {
throw new RuntimeException("Interrupted during commit", e);
} finally {
- cleanupMetadataAndUnlock(threw, newMetadataLocation, lockId);
+ cleanupMetadataAndUnlock(commitStatus, newMetadataLocation, lockId);
+ }
+ }
+
+ /**
+ * Attempt to load the table and see if any current or past metadata
location matches the one we were attempting
+ * to set. This is used as a last resort when we are dealing with exceptions
that may indicate the commit has
+ * failed but are not proof that this is the case. Past locations must also
be searched on the chance that a second
+ * committer was able to successfully commit on top of our commit.
+ *
+ * @param newMetadataLocation the path of the new commit file
+ * @return Commit Status of Success, Failure or Unknown
+ */
+ private CommitStatus checkCommitStatus(String newMetadataLocation) {
+ try {
+ TableMetadata metadata = refresh();
+ String metadataLocation = metadata.metadataFileLocation();
+ boolean commitSuccess = metadataLocation.equals(newMetadataLocation) ||
+ metadata.previousFiles().stream().anyMatch(log ->
log.file().equals(newMetadataLocation));
Review comment:
We still have a possibility of corruption here if the commit was
successful, but more than metadata retention amount of metadata.jsons have been
made in the interim ... this is probably unlikely and i'm not sure how we can
guard against it unless we just treat all metadataLocation not found as
"Unknown Commit State"
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