ashutosh-bapat commented on a change in pull request #587: HIVE-21213 : Acid
table bootstrap replication needs to handle directory created by compaction
with txn id
URL: https://github.com/apache/hive/pull/587#discussion_r360315778
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File path: ql/src/java/org/apache/hadoop/hive/ql/parse/repl/CopyUtils.java
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@@ -463,7 +464,29 @@ public static Path
getCopyDestination(ReplChangeManager.FileInfo fileInfo, Path
String[] subDirs = fileInfo.getSubDir().split(Path.SEPARATOR);
Path destination = destRoot;
for (String subDir: subDirs) {
- destination = new Path(destination, subDir);
+ // If the directory is created by compactor, then the directory will
have the transaction id also.
+ // In case of replication, the same txn id can not be used at target, as
the txn with same id might be a
+ // aborted or live txn at target.
+ // In case of bootstrap load, we copy only the committed data, so the
directory with only write id
+ // can be created. The validity txn id can be removed from the directory
name.
+ // TODO : Support for incremental load flow. This can be done once
replication of compaction is decided.
+ if (AcidUtils.getVisibilityTxnId(subDir) > 0) {
Review comment:
Thanks for the explanation.
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