HIVE-28993: use lower case datanucleus.plugin.pluginRegistryBundleCheck #5847
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Adding a link to the datanucleus change for reference: datanucleus/datanucleus-core@20a99c1#diff-b9ebd71adfcb98d965225c373e44910dc01d1dd8c37a3e4d6d906d58f108e120R30
LGTM pending green test run.
Thanks for the PR!
| DATANUCLEUS_PLUGIN_REGISTRY_BUNDLE_CHECK("datanucleus.plugin.pluginRegistryBundleCheck", | ||
| "datanucleus.plugin.pluginRegistryBundleCheck", "LOG", | ||
| "Defines what happens when plugin bundles are found and are duplicated [EXCEPTION|LOG|NONE]"), | ||
| DATANUCLEUS_PLUGIN_REGISTRY_BUNDLE_CHECK("datanucleus.plugin.pluginRegistryBundleCheck".toLowerCase(), |
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- why use
toLowerCase()instead of just lowercasing the string? - hiveName remained the same, why mark it as deprecated?
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- Same as datanucleus. Please see https://github.com/datanucleus/datanucleus-core/blob/6dc3ad2e63b74efdd3a3c4d3f318a983048e13fc/src/main/java/org/datanucleus/PropertyNames.java#L25.
- The old key whether it is
hiveNameor metastorevarnamehas no effect, so both are deprecated.
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:) interesting style.
Hive already creates plenty of HiveConf obj instances that take a significant part of Heap, so i am not sure it's a good idea to add an overhead by creating unnecessary objects.
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HiveConf holds over 1K entries and avoiding one extra mapping is not going to buy much, IMO. Avoiding just one extra HiveConf object is going to save much more :)
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true, but in any case, why add more redundancy?
...tore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/conf/MetastoreConf.java
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@deniskuzZ IMO, it will be good to revisit of how much testing was done during datanucleus major version upgrade and review https://www.datanucleus.org/products/accessplatform_6_0/migration.html. |
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What changes were proposed in this pull request?
use lower case
datanucleus.plugin.pluginregistrybundlecheckand deprecate priordatanucleus.plugin.pluginRegistryBundleCheck.Why are the changes needed?
After upgrade to 6.x datanucleus does not recognize old settings as it was changed to all lower case.
Does this PR introduce any user-facing change?
No
How was this patch tested?
Using existing tests