kasakrisz commented on code in PR #3759:
URL: https://github.com/apache/hive/pull/3759#discussion_r1026139553
##########
ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/Worker.java:
##########
@@ -291,6 +299,18 @@ protected Boolean findNextCompactionAndExecute(boolean
collectGenericStats, bool
return false;
}
+ if (ci.type.equals(CompactionType.REBALANCE) &&
t1.getSd().isSetNumBuckets() && t1.getSd().getNumBuckets() > 0) {
+ LOG.error("Cannot execute rebalancing compaction on bucketed tables.");
+ ci.errorMessage = "Cannot execute rebalancing compaction on bucketed
tables.";
+ msc.markRefused(CompactionInfo.compactionInfoToStruct(ci));
+ return false;
+ }
+
+ if (!ci.type.equals(CompactionType.REBALANCE) && ci.numberOfBuckets > 0)
{
+ LOG.warn("Only the REBALANCE compaction accepts the number of buckets
clause (CLUSTERED INTO {N} BUCKETS). " +
+ "Since the compaction request is " + ci.type + ", it will be
ignored.");
Review Comment:
Please use placeholders in log messages instead of string concatenation like
```
LOG.warn("Only the REBALANCE compaction accepts the number of buckets clause
(CLUSTERED INTO {N} BUCKETS). " +
"Since the compaction request is {}, it will be ignored.",
ci.type);
```
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