yaooqinn opened a new pull request #25609: [SPARK-28896][K8S] Download hadoop configurations from k8s configmap if the client process has files to upload URL: https://github.com/apache/spark/pull/25609 <!-- Thanks for sending a pull request! Here are some tips for you: 1. If this is your first time, please read our contributor guidelines: https://spark.apache.org/contributing.html 2. Ensure you have added or run the appropriate tests for your PR: https://spark.apache.org/developer-tools.html 3. If the PR is unfinished, add '[WIP]' in your PR title, e.g., '[WIP][SPARK-XXXX] Your PR title ...'. 4. Be sure to keep the PR description updated to reflect all changes. 5. Please write your PR title to summarize what this PR proposes. 6. If possible, provide a concise example to reproduce the issue for a faster review. --> ### What changes were proposed in this pull request? <!-- Please clarify what changes you are proposing. The purpose of this section is to outline the changes and how this PR fixes the issue. If possible, please consider writing useful notes for better and faster reviews in your PR. See the examples below. 1. If you refactor some codes with changing classes, showing the class hierarchy will help reviewers. 2. If you fix some SQL features, you can provide some references of other DBMSes. 3. If there is design documentation, please add the link. 4. If there is a discussion in the mailing list, please add the link. --> Changes in this pr will works in spark-submit client process as the following steps, 1. if there are some jars/files to upload 2. if the spark.kubernetes.file.upload.path is specified 3. try fetch hadoop configmap from k8s cluster via spark.kubernetes.hadoop.configMapName 4. apply all hadoop configmap kvs to a new create hadoop configuration instance 5. apply the hadoop configs from cmd on top of it. 6. reset auth infor with the new hadoop configuration 7. if is secured now but the original ugi is not, try login in now,(without HADOOP_CONF_DIR, the login-in logic will not actually done) 8. then it goes to the former upload file logic Additionally, it used to create hadoop configuration and filesystem per file, this pr change these to lazy val to create only once or less. ### Why are the changes needed? <!-- Please clarify why the changes are needed. For instance, 1. If you propose a new API, clarify the use case for a new API. 2. If you fix a bug, you can clarify why it is a bug. --> The *BasicDriverFeatureStep* for Spark on Kubernetes will upload the files/jars specified by --files/–jars to a hadoop compatible file system configured by spark.kubernetes.file.upload.path. While using HADOOP_CONF_DIR, the spark-submit process can recognize the file system, but when using spark.kubernetes.hadoop.configMapName which only will be mount on the Pods not applied back to our client process. ```scala Kent@KentsMacBookPro ~/Documents/spark-on-k8s/spark-3.0.0-SNAPSHOT-bin-2.7.3 bin/spark-submit --conf spark.kubernetes.file.upload.path=hdfs://hz-cluster10/user/kyuubi/udf --jars /Users/Kent/Documents/spark-on-k8s/spark-3.0.0-SNAPSHOT-bin-2.7.3/hadoop-lzo-0.4.20-SNAPSHOT.jar --conf spark.kerberos.keytab=/Users/Kent/Downloads/kyuubi.keytab --conf spark.kerberos.principal=kyuubi/[email protected] --conf spark.kubernetes.kerberos.krb5.path=/etc/krb5.conf --name hehe --deploy-mode cluster --class org.apache.spark.examples.HdfsTest local:///opt/spark/examples/jars/spark-examples_2.12-3.0.0-SNAPSHOT.jar hdfs://hz-cluster10/user/kyuubi/hive_db/kyuubi.db/hive_tbl Listening for transport dt_socket at address: 50014 # spark.master=k8s://https://10.120.238.100:7443 19/08/27 17:21:06 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties 19/08/27 17:21:07 INFO SparkKubernetesClientFactory: Auto-configuring K8S client using current context from users K8S config file Listening for transport dt_socket at address: 50014 Exception in thread "main" org.apache.spark.SparkException: Uploading file /Users/Kent/Documents/spark-on-k8s/spark-3.0.0-SNAPSHOT-bin-2.7.3/hadoop-lzo-0.4.20-SNAPSHOT.jar failed... at org.apache.spark.deploy.k8s.KubernetesUtils$.uploadFileUri(KubernetesUtils.scala:287) at org.apache.spark.deploy.k8s.KubernetesUtils$.$anonfun$uploadAndTransformFileUris$1(KubernetesUtils.scala:246) at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:237) at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62) at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55) at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49) at scala.collection.TraversableLike.map(TraversableLike.scala:237) at scala.collection.TraversableLike.map$(TraversableLike.scala:230) at scala.collection.AbstractTraversable.map(Traversable.scala:108) at org.apache.spark.deploy.k8s.KubernetesUtils$.uploadAndTransformFileUris(KubernetesUtils.scala:245) at org.apache.spark.deploy.k8s.features.BasicDriverFeatureStep.$anonfun$getAdditionalPodSystemProperties$1(BasicDriverFeatur# spark.master=k8s://https://10.120.238.100:7443 eStep.scala:165) at scala.collection.immutable.List.foreach(List.scala:392) at org.apache.spark.deploy.k8s.features.BasicDriverFeatureStep.getAdditionalPodSystemProperties(BasicDriverFeatureStep.scala:163) at org.apache.spark.deploy.k8s.submit.KubernetesDriverBuilder.$anonfun$buildFromFeatures$3(KubernetesDriverBuilder.scala:60) at scala.collection.LinearSeqOptimized.foldLeft(LinearSeqOptimized.scala:126) at scala.collection.LinearSeqOptimized.foldLeft$(LinearSeqOptimized.scala:122) at scala.collection.immutable.List.foldLeft(List.scala:89) at org.apache.spark.deploy.k8s.submit.KubernetesDriverBuilder.buildFromFeatures(KubernetesDriverBuilder.scala:58) at org.apache.spark.deploy.k8s.submit.Client.run(KubernetesClientApplication.scala:101) at org.apache.spark.deploy.k8s.submit.KubernetesClientApplication.$anonfun$run$10(KubernetesClientApplication.scala:236) at org.apache.spark.deploy.k8s.submit.KubernetesClientApplication.$anonfun$run$10$adapted(KubernetesClientApplication.scala:229) at org.apache.spark.util.Utils$.tryWithResource(Utils.scala:2567) at org.apache.spark.deploy.k8s.submit.KubernetesClientApplication.run(KubernetesClientApplication.scala:229) at org.apache.spark.deploy.k8s.submit.KubernetesClientApplication.start(KubernetesClientApplication.scala:198) at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:920) at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:179) at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:202) at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:89) at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:999) at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1008) at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala) Caused by: java.lang.IllegalArgumentException: java.net.UnknownHostException: hz-cluster10 at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:378) at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:310) at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:176) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:678) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:619) at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:149) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2669) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:94) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2703) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2685) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:373) at org.apache.spark.util.Utils$.getHadoopFileSystem(Utils.scala:1881) at org.apache.spark.deploy.k8s.KubernetesUtils$.uploadFileUri(KubernetesUtils.scala:278) ... 30 more Caused by: java.net.UnknownHostException: hz-cluster10 ... 43 more ``` Other related spark configurations ``` spark.master=k8s://https://10.120.238.100:7443 # spark.master=k8s://https://10.120.238.253:7443 spark.kubernetes.container.image=harbor-inner.sparkonk8s.netease.com/tenant1-project1/spark:v3.0.0-20190813 # spark.kubernetes.driver.container.image=harbor-inner.sparkonk8s.netease.com/tenant1-project1/spark:v3.0.0-20190813 # spark.kubernetes.executor.container.image=harbor-inner.sparkonk8s.netease.com/tenant1-project1/spark:v3.0.0-20190813 spark.executor.instanses=5 spark.kubernetes.namespace=ns1 spark.kubernetes.container.image.pullSecrets=mysecret spark.kubernetes.hadoop.configMapName=hz10-hadoop-dir spark.kubernetes.kerberos.krb5.path=/etc/krb5.conf spark.kerberos.principal=kyuubi/[email protected] spark.kerberos.keytab=/Users/Kent/Downloads/kyuubi.keytab ``` ### Does this PR introduce any user-facing change? <!-- If yes, please clarify the previous behavior and the change this PR proposes - provide the console output, description and/or an example to show the behavior difference if possible. If no, write 'No'. --> I guess this pr will now use config map of hadoop from k8s cluster to the local client process if there are files to upload to hadoop. ### How was this patch tested? <!-- If tests were added, say they were added here. Please make sure to add some test cases that check the changes thoroughly including negative and positive cases if possible. If it was tested in a way different from regular unit tests, please clarify how you tested step by step, ideally copy and paste-able, so that other reviewers can test and check, and descendants can verify in the future. If tests were not added, please describe why they were not added and/or why it was difficult to add. --> manually tested with spark + k8s cluster + standalone kerberized hdfs cluster
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