[SPARK-20967][SQL] SharedState.externalCatalog is not really lazy #18187
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cc @gatorsmile |
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Test build #77676 has finished for PR 18187 at commit
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+1, LGTM. |
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thanks for the review, merging to master/2.2! |
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## What changes were proposed in this pull request? `SharedState.externalCatalog` is marked as a `lazy val` but actually it's not lazy. We access `externalCatalog` while initializing `SharedState` and thus eliminate the effort of `lazy val`. When creating `ExternalCatalog` we will try to connect to the metastore and may throw an error, so it makes sense to make it a `lazy val` in `SharedState`. ## How was this patch tested? existing tests. Author: Wenchen Fan <[email protected]> Closes #18187 from cloud-fan/minor. (cherry picked from commit d1b80ab) Signed-off-by: Wenchen Fan <[email protected]>
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What changes were proposed in this pull request?
SharedState.externalCatalogis marked as alazy valbut actually it's not lazy. We accessexternalCatalogwhile initializingSharedStateand thus eliminate the effort oflazy val. When creatingExternalCatalogwe will try to connect to the metastore and may throw an error, so it makes sense to make it alazy valinSharedState.How was this patch tested?
existing tests.