rdblue commented on a change in pull request #2119:
URL: https://github.com/apache/iceberg/pull/2119#discussion_r561447854
##########
File path:
hive-metastore/src/main/java/org/apache/iceberg/hive/HiveClientPool.java
##########
@@ -83,6 +83,20 @@ protected HiveMetaStoreClient reconnect(HiveMetaStoreClient
client) {
return client;
}
+ @Override
+ protected boolean failureDetection(HiveMetaStoreClient client, Exception ex)
{
Review comment:
I might not understand the fix. From reading #1994, I thought the
problem was that some client calls throw the wrong exception, a `MetaException`
that wraps `TTransportException` instead of `TTransportException`. That causes
the reconnect detection to fail and the `MetaException` is thrown instead.
I would then expect the fix to be to detect the `MetaException` that wraps
`TTransportException` and return true because the connection should be
reconnected.
The implementation here appears to be to try to use the connection again and
return true if it fails with `TTransportException` the second time or false (do
not reconnect) if it succeeds. But why issue the second call instead of
detecting the failure case using `ex.getCause()`?
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