[SPARK-17245] [SQL] [BRANCH-1.6] Do not rely on Hive's session state to retrieve HiveConf #14816
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…to retrieve HiveConf
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Test build #64439 has finished for PR 14816 at commit
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test this please |
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test this please |
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Test build #64443 has finished for PR 14816 at commit
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test this please |
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Test build #65014 has finished for PR 14816 at commit
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LGTM, merging to 1.6 |
asfgit
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Sep 7, 2016
… retrieve HiveConf ## What changes were proposed in this pull request? Right now, we rely on Hive's `SessionState.get()` to retrieve the HiveConf used by ClientWrapper. However, this conf is actually the HiveConf set with the `state`. There is a small chance that we are trying to use the Hive client in a new thread while the global client has not been created yet. In this case, `SessionState.get()` will return a `null`, which causes a NPE when we call `SessionState.get(). getConf `. Since the conf that we want is actually the conf we set to `state`. I am changing the code to just call `state.getConf` (this is also what Spark 2.0 does). ## How was this patch tested? I have not figured out a good way to reproduce this. Author: Yin Huai <yhuai@databricks.com> Closes #14816 from yhuai/SPARK-17245.
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@yhuai, could you close this PR now that it's been merged? |
zzcclp
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Sep 8, 2016
… retrieve HiveConf ## What changes were proposed in this pull request? Right now, we rely on Hive's `SessionState.get()` to retrieve the HiveConf used by ClientWrapper. However, this conf is actually the HiveConf set with the `state`. There is a small chance that we are trying to use the Hive client in a new thread while the global client has not been created yet. In this case, `SessionState.get()` will return a `null`, which causes a NPE when we call `SessionState.get(). getConf `. Since the conf that we want is actually the conf we set to `state`. I am changing the code to just call `state.getConf` (this is also what Spark 2.0 does). ## How was this patch tested? I have not figured out a good way to reproduce this. Author: Yin Huai <yhuai@databricks.com> Closes apache#14816 from yhuai/SPARK-17245. (cherry picked from commit 047bc3f)
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What changes were proposed in this pull request?
Right now, we rely on Hive's
SessionState.get()to retrieve the HiveConf used by ClientWrapper. However, this conf is actually the HiveConf set with thestate. There is a small chance that we are trying to use the Hive client in a new thread while the global client has not been created yet. In this case,SessionState.get()will return anull, which causes a NPE when we callSessionState.get(). getConf. Since the conf that we want is actually the conf we set tostate. I am changing the code to just callstate.getConf(this is also what Spark 2.0 does).How was this patch tested?
I have not figured out a good way to reproduce this.