nrg4878 commented on a change in pull request #2094:
URL: https://github.com/apache/hive/pull/2094#discussion_r600816065
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File path:
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/MetastoreDefaultTransformer.java
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@@ -695,7 +695,8 @@ public Database transformDatabase(Database db, List<String>
processorCapabilitie
if (!isTenantBasedStorage) {
Path locationPath = Path.getPathWithoutSchemeAndAuthority(new
Path(db.getLocationUri()));
Path whRootPath =
Path.getPathWithoutSchemeAndAuthority(hmsHandler.getWh().getWhRoot());
- if (FileUtils.isSubdirectory(whRootPath.toString(),
locationPath.toString())) { // legacy path
+ LOG.debug("Comparing DB and warehouse paths warehouse={}
db.getLocationUri={}", whRootPath.toString(), locationPath.toString());
+ if (FileUtils.isSubdirectory(whRootPath.toString(),
locationPath.toString()) || locationPath.equals(whRootPath)) { // legacy path
Review comment:
so prior to the introduction of managedlocation for db, while the exact
semantics are unclear, the location was meant to be for managed tables.
Although there is no code that enforces this strictly. So a legacy db object
could have a location that could point anywhere.
This fix it for backward compatibility. When a location is set to a managed
location, we are ensuring that that location now becomes the managedlocation.
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