David Knupp has posted comments on this change. Change subject: IMPALA-4482: Use ALTER TABLE / RECOVER PARTITIONS when loading tpcds.store_sales ......................................................................
Patch Set 2: Just to clarify, because I think it might be confusing to people not familiar with the 3 code paths Harrison referenced: 1. Originally "data load" meant generating all data from scratch. Doesn't assume loading anything from a snapshot file. This is the general use case, and is what an external contributor would need to do. 2. It can also mean that we copy data to HDFS from a snapshot file, but we don't restore the metadata from a snapshot. This is the case that currently applies to loading Impala's test data to a cluster within Cloudera's testing infrastructure, but theoretically this could be done elsewhere. 3. Finally, the case by which *both* HDFS and metadata DB are reconstituted from snapshot files -- though some tweaking of the metadata is still usually required. This is most commonly used by developers who have access to the Cloudera internal resources. Just wanted to clarify that. -- To view, visit http://gerrit.cloudera.org:8080/5177 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: Iaae97d1d44201aeeacacdd39adbae35753512950 Gerrit-PatchSet: 2 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: David Knupp <dkn...@cloudera.com> Gerrit-Reviewer: David Knupp <dkn...@cloudera.com> Gerrit-Reviewer: Dimitris Tsirogiannis <dtsirogian...@cloudera.com> Gerrit-Reviewer: Harrison Sheinblatt <h...@hotmail.com> Gerrit-HasComments: No
