[
https://issues.apache.org/jira/browse/SPARK-32256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Shixiong Zhu updated SPARK-32256:
---------------------------------
Description:
Spark allows the user to set `spark.sql.hive.metastore.jars` to specify jars to
access Hive Metastore. These jars are loaded by the isolated classloader.
Because we also share Hadoop classes with the isolated classloader, the user
doesn't need to add Hadoop jars to `spark.sql.hive.metastore.jars`, which means
when we are using the isolated classloader, hadoop-common jar is not available
in this case. If Hadoop VersionInfo is not initialized before we switch to the
isolated classloader, and we try to initialize it using the isolated
classloader (the current thread context classloader), it will fail and report
`Unknown` which causes Hive to throw the following exception:
{code}
java.lang.RuntimeException: Illegal Hadoop Version: Unknown (expected A.B.*
format)
at
org.apache.hadoop.hive.shims.ShimLoader.getMajorVersion(ShimLoader.java:147)
at
org.apache.hadoop.hive.shims.ShimLoader.loadShims(ShimLoader.java:122)
at
org.apache.hadoop.hive.shims.ShimLoader.getHadoopShims(ShimLoader.java:88)
at
org.apache.hadoop.hive.metastore.ObjectStore.getDataSourceProps(ObjectStore.java:377)
at
org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:268)
at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:76)
at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:136)
at
org.apache.hadoop.hive.metastore.RawStoreProxy.<init>(RawStoreProxy.java:58)
at
org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:67)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStore(HiveMetaStore.java:517)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:482)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:544)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:370)
at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:78)
at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:84)
at
org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:5762)
at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:219)
at
org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:67)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1548)
at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:86)
at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)
at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)
at
org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3080)
at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3108)
at
org.apache.hadoop.hive.ql.metadata.Hive.getAllFunctions(Hive.java:3349)
at
org.apache.hadoop.hive.ql.metadata.Hive.reloadFunctions(Hive.java:217)
at
org.apache.hadoop.hive.ql.metadata.Hive.registerAllFunctionsOnce(Hive.java:204)
at org.apache.hadoop.hive.ql.metadata.Hive.<init>(Hive.java:331)
at org.apache.hadoop.hive.ql.metadata.Hive.get(Hive.java:292)
at org.apache.hadoop.hive.ql.metadata.Hive.getInternal(Hive.java:262)
at org.apache.hadoop.hive.ql.metadata.Hive.get(Hive.java:247)
at
org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:543)
at
org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:511)
at
org.apache.spark.sql.hive.client.HiveClientImpl.newState(HiveClientImpl.scala:175)
at
org.apache.spark.sql.hive.client.HiveClientImpl.<init>(HiveClientImpl.scala:128)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.apache.spark.sql.hive.client.IsolatedClientLoader.createClient(IsolatedClientLoader.scala:301)
at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:431)
at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:324)
at
org.apache.spark.sql.hive.HiveExternalCatalog.client$lzycompute(HiveExternalCatalog.scala:72)
at
org.apache.spark.sql.hive.HiveExternalCatalog.client(HiveExternalCatalog.scala:71)
at
org.apache.spark.sql.hive.client.HadoopVersionInfoSuite.$anonfun$new$1(HadoopVersionInfoSuite.scala:63)
at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:85)
at org.scalatest.OutcomeOf.outcomeOf$(OutcomeOf.scala:83)
{code}
Technically, This is indeed an issue of Hadoop VersionInfo which has been
fixed: https://issues.apache.org/jira/browse/HADOOP-14067. But since we are
still supporting old Hadoop versions, we should fix it.
Why this issue starts to happen in Spark 3.0.0?
In Spark 2.4.x, we use Hive 1.2.1 by default. It will trigger `VersionInfo`
initialization in the static codes of `Hive` class. This will happen when we
load `HiveClientImpl` class because `HiveClientImpl.clent` method refers to
`Hive` class. At this moment, the thread context classloader is not using the
isolcated classloader, so it can access hadoop-common jar on the classpath and
initialize it correctly.
In Spark 3.0.0, we use Hive 2.3.7. The static codes of `Hive` class are not
accessing `VersionInfo` because of the change in
https://issues.apache.org/jira/browse/HIVE-11657. Instead, accessing
`VersionInfo` happens when creating a `Hive` object (See the above stack
trace). This happens here
https://github.com/apache/spark/blob/v3.0.0/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala#L260.
But we switch to the isolated classloader before calling
`HiveClientImpl.client` (See
https://github.com/apache/spark/blob/v3.0.0/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala#L283).
This is exactly what I mentioned above: `If Hadoop VersionInfo is not
initialized before we switch to the isolated classloader, and we try to
initialize it using the isolated classloader (the current thread context
classloader), it will fail`
I marked this is a blocker because it's a regression in 3.0.0 caused by
upgrading Hive execution version from 1.2.1 to 2.3.7.
was:
Spark allows the user to set `spark.sql.hive.metastore.jars` to specify jars to
access Hive Metastore. These jars are loaded by the isolated classloader.
Because we also share Hadoop classes with the isolated classloader, the user
doesn't need to add Hadoop jars to `spark.sql.hive.metastore.jars`, which means
when we are using the isolated classloader, hadoop-common jar is not available
in this case. If Hadoop VersionInfo is not initialized before we switch to the
isolated classloader, and we try to initialize it using the isolated
classloader (the current thread context classloader), it will fail and report
`Unknown` which causes Hive to throw the following exception:
{code}
08:49:33.242 ERROR org.apache.hadoop.hive.shims.ShimLoader: Error loading shims
java.lang.RuntimeException: Illegal Hadoop Version: Unknown (expected A.B.*
format)
at
org.apache.hadoop.hive.shims.ShimLoader.getMajorVersion(ShimLoader.java:147)
at
org.apache.hadoop.hive.shims.ShimLoader.loadShims(ShimLoader.java:122)
at
org.apache.hadoop.hive.shims.ShimLoader.getHadoopShims(ShimLoader.java:88)
at
org.apache.hadoop.hive.metastore.ObjectStore.getDataSourceProps(ObjectStore.java:377)
at
org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:268)
at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:76)
at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:136)
at
org.apache.hadoop.hive.metastore.RawStoreProxy.<init>(RawStoreProxy.java:58)
at
org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:67)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStore(HiveMetaStore.java:517)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:482)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:544)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:370)
at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:78)
at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:84)
at
org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:5762)
at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:219)
at
org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:67)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1548)
at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:86)
at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)
at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)
at
org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3080)
at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3108)
at
org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:543)
at
org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:511)
at
org.apache.spark.sql.hive.client.HiveClientImpl.newState(HiveClientImpl.scala:175)
at
org.apache.spark.sql.hive.client.HiveClientImpl.<init>(HiveClientImpl.scala:128)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.apache.spark.sql.hive.client.IsolatedClientLoader.createClient(IsolatedClientLoader.scala:301)
at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:431)
at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:324)
at
org.apache.spark.sql.hive.HiveExternalCatalog.client$lzycompute(HiveExternalCatalog.scala:72)
at
org.apache.spark.sql.hive.HiveExternalCatalog.client(HiveExternalCatalog.scala:71)
{code}
Technically, This is indeed an issue of Hadoop VersionInfo which has been
fixed: https://issues.apache.org/jira/browse/HADOOP-14067. But since we are
still supporting old Hadoop versions, we should fix it.
Why this issue starts to happen in Spark 3.0.0?
In Spark 2.4.x, we use Hive 1.2.1 by default. It will trigger `VersionInfo`
initialization in the static codes of `Hive` class. This will happen when we
load `HiveClientImpl` class because `HiveClientImpl.clent` method refers to
`Hive` class. At this moment, the thread context classloader is not using the
isolcated classloader, so it can access hadoop-common jar on the classpath and
initialize it correctly.
In Spark 3.0.0, we use Hive 2.3.7. The static codes of `Hive` class are not
accessing `VersionInfo` because of the change in
https://issues.apache.org/jira/browse/HIVE-11657. Instead, accessing
`VersionInfo` happens when creating a `Hive` object (See the above stack
trace). This happens here
https://github.com/apache/spark/blob/v3.0.0/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala#L260.
But we switch to the isolated classloader before calling
`HiveClientImpl.client` (See
https://github.com/apache/spark/blob/v3.0.0/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala#L283).
This is exactly what I mentioned above: `If Hadoop VersionInfo is not
initialized before we switch to the isolated classloader, and we try to
initialize it using the isolated classloader (the current thread context
classloader), it will fail`
I marked this is a blocker because it's a regression in 3.0.0 caused by
upgrading Hive execution version from 1.2.1 to 2.3.7.
> Hive may fail to detect Hadoop version when using isolated classloader
> ----------------------------------------------------------------------
>
> Key: SPARK-32256
> URL: https://issues.apache.org/jira/browse/SPARK-32256
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Shixiong Zhu
> Assignee: Shixiong Zhu
> Priority: Blocker
>
> Spark allows the user to set `spark.sql.hive.metastore.jars` to specify jars
> to access Hive Metastore. These jars are loaded by the isolated classloader.
> Because we also share Hadoop classes with the isolated classloader, the user
> doesn't need to add Hadoop jars to `spark.sql.hive.metastore.jars`, which
> means when we are using the isolated classloader, hadoop-common jar is not
> available in this case. If Hadoop VersionInfo is not initialized before we
> switch to the isolated classloader, and we try to initialize it using the
> isolated classloader (the current thread context classloader), it will fail
> and report `Unknown` which causes Hive to throw the following exception:
> {code}
> java.lang.RuntimeException: Illegal Hadoop Version: Unknown (expected A.B.*
> format)
> at
> org.apache.hadoop.hive.shims.ShimLoader.getMajorVersion(ShimLoader.java:147)
> at
> org.apache.hadoop.hive.shims.ShimLoader.loadShims(ShimLoader.java:122)
> at
> org.apache.hadoop.hive.shims.ShimLoader.getHadoopShims(ShimLoader.java:88)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.getDataSourceProps(ObjectStore.java:377)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:268)
> at
> org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:76)
> at
> org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:136)
> at
> org.apache.hadoop.hive.metastore.RawStoreProxy.<init>(RawStoreProxy.java:58)
> at
> org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:67)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStore(HiveMetaStore.java:517)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:482)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:544)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:370)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:78)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:84)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:5762)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:219)
> at
> org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:67)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at
> org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1548)
> at
> org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:86)
> at
> org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)
> at
> org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)
> at
> org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3080)
> at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3108)
> at
> org.apache.hadoop.hive.ql.metadata.Hive.getAllFunctions(Hive.java:3349)
> at
> org.apache.hadoop.hive.ql.metadata.Hive.reloadFunctions(Hive.java:217)
> at
> org.apache.hadoop.hive.ql.metadata.Hive.registerAllFunctionsOnce(Hive.java:204)
> at org.apache.hadoop.hive.ql.metadata.Hive.<init>(Hive.java:331)
> at org.apache.hadoop.hive.ql.metadata.Hive.get(Hive.java:292)
> at org.apache.hadoop.hive.ql.metadata.Hive.getInternal(Hive.java:262)
> at org.apache.hadoop.hive.ql.metadata.Hive.get(Hive.java:247)
> at
> org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:543)
> at
> org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:511)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl.newState(HiveClientImpl.scala:175)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl.<init>(HiveClientImpl.scala:128)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at
> org.apache.spark.sql.hive.client.IsolatedClientLoader.createClient(IsolatedClientLoader.scala:301)
> at
> org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:431)
> at
> org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:324)
> at
> org.apache.spark.sql.hive.HiveExternalCatalog.client$lzycompute(HiveExternalCatalog.scala:72)
> at
> org.apache.spark.sql.hive.HiveExternalCatalog.client(HiveExternalCatalog.scala:71)
> at
> org.apache.spark.sql.hive.client.HadoopVersionInfoSuite.$anonfun$new$1(HadoopVersionInfoSuite.scala:63)
> at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:85)
> at org.scalatest.OutcomeOf.outcomeOf$(OutcomeOf.scala:83)
> {code}
> Technically, This is indeed an issue of Hadoop VersionInfo which has been
> fixed: https://issues.apache.org/jira/browse/HADOOP-14067. But since we are
> still supporting old Hadoop versions, we should fix it.
> Why this issue starts to happen in Spark 3.0.0?
> In Spark 2.4.x, we use Hive 1.2.1 by default. It will trigger `VersionInfo`
> initialization in the static codes of `Hive` class. This will happen when we
> load `HiveClientImpl` class because `HiveClientImpl.clent` method refers to
> `Hive` class. At this moment, the thread context classloader is not using the
> isolcated classloader, so it can access hadoop-common jar on the classpath
> and initialize it correctly.
> In Spark 3.0.0, we use Hive 2.3.7. The static codes of `Hive` class are not
> accessing `VersionInfo` because of the change in
> https://issues.apache.org/jira/browse/HIVE-11657. Instead, accessing
> `VersionInfo` happens when creating a `Hive` object (See the above stack
> trace). This happens here
> https://github.com/apache/spark/blob/v3.0.0/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala#L260.
> But we switch to the isolated classloader before calling
> `HiveClientImpl.client` (See
> https://github.com/apache/spark/blob/v3.0.0/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala#L283).
> This is exactly what I mentioned above: `If Hadoop VersionInfo is not
> initialized before we switch to the isolated classloader, and we try to
> initialize it using the isolated classloader (the current thread context
> classloader), it will fail`
> I marked this is a blocker because it's a regression in 3.0.0 caused by
> upgrading Hive execution version from 1.2.1 to 2.3.7.
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