zhengchenyu commented on PR #37949:
URL: https://github.com/apache/spark/pull/37949#issuecomment-1311254076

   @xkrogen   Thanks for your review.  In our cluster, YARN_CONF_DIR is same 
with HADOOP_CONF_DIR.
   
   SparkHadoopUtil.newConfiguration is different from 
SparkHadoopUtil.get.newConfiguration
   
   The steps in SparkHadoopUtil.newConfiguration are below:
   *(step a) load configuration from config in classpath
   *(step b) append s3 and spark.hadoop.* and spark.hive.* configuraiton
   
   The steps in SparkHadoopUtil.get.newConfiguration are below: 
   *(step a) load configuration from config in classpath
   *(step b) append s3 and spark.hadoop.* and spark.hive.* configuraiton
   *(step c) append __spark_hadoop_conf__.xml configuration
   
   I add some key information about the failed application.
   
   ```
   # some key information in launch_container.sh:
   export 
HADOOP_CONF_DIR=${HADOOP_CONF_DIR:-"/home/XXX/conf/devtest/server/yarn/hadoop"}
   export 
CLASSPATH="$PWD:$PWD/__spark_conf__:$PWD/__spark_libs__/*:$HADOOP_CONF_DIR:$HADOOP_COMMON_HOME/share/hadoop/common/*:$HADOOP_COMMON_HOME/share/hadoop/common/lib/*:$HADOOP_HDFS_HOME/share/hadoop/hdfs/*:$HADOOP_HDFS_HOME/share/hadoop/hdfs/lib/*:$HADOOP_YARN_HOME/share/hadoop/yarn/*:$HADOOP_YARN_HOME/share/hadoop/yarn/lib/*:$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/*:$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/lib/*:/home/xxx/conf/devtest/client-devtest/bigdata/hadoop:/home/xxx/bin/hadoop/share/hadoop/common/lib/*:/home/xxx/bin/hadoop/share/hadoop/common/*:/home/xxx/bin/hadoop/share/hadoop/hdfs:/home/xxx/bin/hadoop/share/hadoop/hdfs/lib/*:/home/xxx/bin/hadoop/share/hadoop/hdfs/*:/home/xxx/bin/hadoop/share/hadoop/mapreduce/lib/*:/home/xxx/bin/hadoop/share/hadoop/mapreduce/*:/home/xxx/bin/hadoop/share/hadoop/yarn:/home/xxx/bin/hadoop/share/hadoop/yarn/lib/*:/home/xxx/bin/hadoop/share/hadoop/yarn/*:/home/xxx/conf/devtest/client-devtest/bigdata/tez:/home/xxx/bin/tez/hadoop-shim-0.
 
9.2.jar:/home/xxx/bin/tez/hadoop-shim-2.7-0.9.2.jar:/home/xxx/bin/tez/lib:/home/xxx/bin/tez/LICENSE:/home/xxx/bin/tez/LICENSE-BSD-3clause:/home/xxx/bin/tez/LICENSE-CDDLv1.0:/home/xxx/bin/tez/LICENSE-CDDLv1.1-GPLv2_withCPE:/home/xxx/bin/tez/LICENSE-MIT:/home/xxx/bin/tez/LICENSE-SIL_OpenFontLicense-v1.1:/home/xxx/bin/tez/NOTICE:/home/xxx/bin/tez/tez-api-0.9.2.jar:/home/xxx/bin/tez/tez-build-tools-0.9.2.jar:/home/xxx/bin/tez/tez-common-0.9.2.jar:/home/xxx/bin/tez/tez-dag-0.9.2.jar:/home/xxx/bin/tez/tez-examples-0.9.2.jar:/home/xxx/bin/tez/tez-ext-service-tests-0.9.2.jar:/home/xxx/bin/tez/tez-history-parser-0.9.2.jar:/home/xxx/bin/tez/tez-javadoc-tools-0.9.2.jar:/home/xxx/bin/tez/tez-job-analyzer-0.9.2.jar:/home/xxx/bin/tez/tez-mapreduce-0.9.2.jar:/home/xxx/bin/tez/tez-protobuf-history-plugin-0.9.2.jar:/home/xxx/bin/tez/tez-runtime-internals-0.9.2.jar:/home/xxx/bin/tez/tez-runtime-library-0.9.2.jar:/home/xxx/bin/tez/tez-tests-0.9.2.jar:/home/xxx/bin/tez/tez-ui-0.9.2.war:/home/xxx/bin/te
 
z/tez-yarn-timeline-history-0.9.2.jar:/home/xxx/bin/tez/tez-yarn-timeline-history-with-acls-0.9.2.jar:/home/xxx/bin/tez/lib/accessors-smart-1.2.jar:/home/xxx/bin/tez/lib/animal-sniffer-annotations-1.17.jar:/home/xxx/bin/tez/lib/aopalliance-1.0.jar:/home/xxx/bin/tez/lib/asm-5.0.4.jar:/home/xxx/bin/tez/lib/async-http-client-1.8.16.jar:/home/xxx/bin/tez/lib/audience-annotations-0.5.0.jar:/home/xxx/bin/tez/lib/avro-1.7.7.jar:/home/xxx/bin/tez/lib/bcpkix-jdk15on-1.60.jar:/home/xxx/bin/tez/lib/bcprov-jdk15on-1.60.jar:/home/xxx/bin/tez/lib/checker-qual-2.5.2.jar:/home/xxx/bin/tez/lib/commons-beanutils-1.9.3.jar:/home/xxx/bin/tez/lib/commons-cli-1.2.jar:/home/xxx/bin/tez/lib/commons-codec-1.4.jar:/home/xxx/bin/tez/lib/commons-collections-3.2.2.jar:/home/xxx/bin/tez/lib/commons-collections4-4.1.jar:/home/xxx/bin/tez/lib/commons-compress-1.18.jar:/home/xxx/bin/tez/lib/commons-configuration2-2.1.1.jar:/home/xxx/bin/tez/lib/commons-daemon-1.0.13.jar:/home/xxx/bin/tez/lib/commons-io-2.4.jar:/hom
 
e/xxx/bin/tez/lib/commons-lang-2.6.jar:/home/xxx/bin/tez/lib/commons-lang3-3.7.jar:/home/xxx/bin/tez/lib/commons-logging-1.1.3.jar:/home/xxx/bin/tez/lib/commons-math3-3.1.1.jar:/home/xxx/bin/tez/lib/commons-net-3.6.jar:/home/xxx/bin/tez/lib/commons-text-1.4.jar:/home/xxx/bin/tez/lib/curator-client-2.13.0.jar:/home/xxx/bin/tez/lib/curator-framework-2.13.0.jar:/home/xxx/bin/tez/lib/curator-recipes-2.13.0.jar:/home/xxx/bin/tez/lib/dnsjava-2.1.7.jar:/home/xxx/bin/tez/lib/ehcache-3.3.1.jar:/home/xxx/bin/tez/lib/error_prone_annotations-2.2.0.jar:/home/xxx/bin/tez/lib/failureaccess-1.0.jar:/home/xxx/bin/tez/lib/geronimo-jcache_1.0_spec-1.0-alpha-1.jar:/home/xxx/bin/tez/lib/gson-2.2.4.jar:/home/xxx/bin/tez/lib/guava-27.0-jre.jar:/home/xxx/bin/tez/lib/guice-4.0.jar:/home/xxx/bin/tez/lib/guice-servlet-4.0.jar:/home/xxx/bin/tez/lib/hadoop-annotations-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-auth-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-common-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-hdfs-3.2.1.jar:/
 
home/xxx/bin/tez/lib/hadoop-hdfs-client-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-mapreduce-client-common-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-mapreduce-client-core-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-yarn-api-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-yarn-client-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-yarn-common-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-yarn-registry-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-yarn-server-common-3.2.1.jar:/home/xxx/bin/tez/lib/hadoop-yarn-server-web-proxy-3.2.1.jar:/home/xxx/bin/tez/lib/HikariCP-java7-2.4.12.jar:/home/xxx/bin/tez/lib/htrace-core4-4.1.0-incubating.jar:/home/xxx/bin/tez/lib/httpclient-4.5.6.jar:/home/xxx/bin/tez/lib/httpcore-4.4.10.jar:/home/xxx/bin/tez/lib/j2objc-annotations-1.1.jar:/home/xxx/bin/tez/lib/jackson-annotations-2.9.8.jar:/home/xxx/bin/tez/lib/jackson-core-2.9.8.jar:/home/xxx/bin/tez/lib/jackson-core-asl-1.9.2.jar:/home/xxx/bin/tez/lib/jackson-databind-2.9.8.jar:/home/xxx/bin/tez/lib/jackson-jaxrs-1.9.2.jar:/home/xxx/bin/tez/lib/
 
jackson-jaxrs-base-2.9.8.jar:/home/xxx/bin/tez/lib/jackson-jaxrs-json-provider-2.9.8.jar:/home/xxx/bin/tez/lib/jackson-mapper-asl-1.9.2.jar:/home/xxx/bin/tez/lib/jackson-module-jaxb-annotations-2.9.8.jar:/home/xxx/bin/tez/lib/jackson-xc-1.9.2.jar:/home/xxx/bin/tez/lib/javax.inject-1.jar:/home/xxx/bin/tez/lib/javax.servlet-api-3.1.0.jar:/home/xxx/bin/tez/lib/jaxb-api-2.2.11.jar:/home/xxx/bin/tez/lib/jaxb-impl-2.2.3-1.jar:/home/xxx/bin/tez/lib/jcip-annotations-1.0-1.jar:/home/xxx/bin/tez/lib/jersey-client-1.19.jar:/home/xxx/bin/tez/lib/jersey-core-1.19.jar:/home/xxx/bin/tez/lib/jersey-guice-1.19.jar:/home/xxx/bin/tez/lib/jersey-json-1.19.jar:/home/xxx/bin/tez/lib/jersey-servlet-1.19.jar:/home/xxx/bin/tez/lib/jettison-1.3.4.jar:/home/xxx/bin/tez/lib/jetty-http-9.3.24.v20180605.jar:/home/xxx/bin/tez/lib/jetty-io-9.3.24.v20180605.jar:/home/xxx/bin/tez/lib/jetty-security-9.3.24.v20180605.jar:/home/xxx/bin/tez/lib/jetty-server-9.3.24.v20180605.jar:/home/xxx/bin/tez/lib/jetty-servlet-9.3.24
 
.v20180605.jar:/home/xxx/bin/tez/lib/jetty-util-9.3.24.v20180605.jar:/home/xxx/bin/tez/lib/jetty-util-ajax-9.3.24.v20180605.jar:/home/xxx/bin/tez/lib/jetty-webapp-9.3.24.v20180605.jar:/home/xxx/bin/tez/lib/jetty-xml-9.3.24.v20180605.jar:/home/xxx/bin/tez/lib/json-smart-2.3.jar:/home/xxx/bin/tez/lib/jsr305-3.0.0.jar:/home/xxx/bin/tez/lib/jsr311-api-1.1.1.jar:/home/xxx/bin/tez/lib/kerb-admin-1.0.1.jar:/home/xxx/bin/tez/lib/kerb-client-1.0.1.jar:/home/xxx/bin/tez/lib/kerb-common-1.0.1.jar:/home/xxx/bin/tez/lib/kerb-core-1.0.1.jar:/home/xxx/bin/tez/lib/kerb-crypto-1.0.1.jar:/home/xxx/bin/tez/lib/kerb-identity-1.0.1.jar:/home/xxx/bin/tez/lib/kerb-server-1.0.1.jar:/home/xxx/bin/tez/lib/kerb-simplekdc-1.0.1.jar:/home/xxx/bin/tez/lib/kerb-util-1.0.1.jar:/home/xxx/bin/tez/lib/kerby-asn1-1.0.1.jar:/home/xxx/bin/tez/lib/kerby-config-1.0.1.jar:/home/xxx/bin/tez/lib/kerby-pkix-1.0.1.jar:/home/xxx/bin/tez/lib/kerby-util-1.0.1.jar:/home/xxx/bin/tez/lib/kerby-xdr-1.0.1.jar:/home/xxx/bin/tez/lib/lev
 
eldbjni-all-1.8.jar:/home/xxx/bin/tez/lib/listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:/home/xxx/bin/tez/lib/log4j-1.2.17.jar:/home/xxx/bin/tez/lib/metrics-core-3.1.0.jar:/home/xxx/bin/tez/lib/mssql-jdbc-6.2.1.jre7.jar:/home/xxx/bin/tez/lib/netty-3.6.2.Final.jar:/home/xxx/bin/tez/lib/netty-all-4.0.52.Final.jar:/home/xxx/bin/tez/lib/nimbus-jose-jwt-4.41.1.jar:/home/xxx/bin/tez/lib/okhttp-2.7.5.jar:/home/xxx/bin/tez/lib/okio-1.6.0.jar:/home/xxx/bin/tez/lib/paranamer-2.3.jar:/home/xxx/bin/tez/lib/protobuf-java-2.5.0.jar:/home/xxx/bin/tez/lib/re2j-1.1.jar:/home/xxx/bin/tez/lib/RoaringBitmap-0.5.21.jar:/home/xxx/bin/tez/lib/servlet-api-2.5.jar:/home/xxx/bin/tez/lib/slf4j-api-1.7.10.jar:/home/xxx/bin/tez/lib/slf4j-log4j12-1.7.10.jar:/home/xxx/bin/tez/lib/snappy-java-1.0.5.jar:/home/xxx/bin/tez/lib/stax2-api-3.1.4.jar:/home/xxx/bin/tez/lib/stax-api-1.0.1.jar:/home/xxx/bin/tez/lib/token-provider-1.0.1.jar:/home/xxx/bin/tez/lib/woodstox-core-5.0.3.jar:/home/xxx/bin/tez/lib/
 
zookeeper-3.4.13.jar:/home/xxx/conf/devtest/client-devtest/bigdata/hive:$PWD/__spark_conf__/__hadoop_conf__"
   
   # some key information in directory.info:
   find -L . -maxdepth 5 -ls:
   4294973945    0 drwx--s---   3 bigdata  hadoop        159 Nov 11 11:30 .
   6442461027    0 drwx--s---   2 bigdata  hadoop         10 Nov 11 11:30 ./tmp
   4294973950   24 -rwx------   1 bigdata  hadoop      22397 Nov 11 11:30 
./launch_container.sh
   4294976100    4 -rw-------   1 bigdata  hadoop        511 Nov 11 11:30 
./container_tokens
   17179897731    0 drwx------   3 bigdata  bigdata       182 Nov 11 11:30 
./__spark_conf__
   17179897732    4 -r-x------   1 bigdata  bigdata      2083 Nov 11 11:30 
./__spark_conf__/log4j.properties
   19348229648    0 drwx------   2 bigdata  bigdata       223 Nov 11 11:30 
./__spark_conf__/__hadoop_conf__
   19348229379    4 -r-x------   1 bigdata  bigdata      3054 Nov 11 11:30 
./__spark_conf__/__hadoop_conf__/mapred-site.xml
   19348229412    4 -r-x------   1 bigdata  bigdata       702 Nov 11 11:30 
./__spark_conf__/__hadoop_conf__/log4j.properties
   19348229422   16 -r-x------   1 bigdata  bigdata     14665 Nov 11 11:30 
./__spark_conf__/__hadoop_conf__/yarn-site.xml
   19348229430    4 -r-x------   1 bigdata  bigdata      3068 Nov 11 11:30 
./__spark_conf__/__hadoop_conf__/core-site.xml
   19348228517    4 -r-x------   1 bigdata  bigdata      1382 Nov 11 11:30 
./__spark_conf__/__hadoop_conf__/switch_hadoop_env.sh
   19348228540   16 -r-x------   1 bigdata  bigdata     12710 Nov 11 11:30 
./__spark_conf__/__hadoop_conf__/hdfs-site.xml
   19348222919  184 -r-x------   1 bigdata  bigdata    184528 Nov 11 11:30 
./__spark_conf__/__hadoop_conf__/hive-site.xml
   19348222920    8 -r-x------   1 bigdata  bigdata      8052 Nov 11 11:30 
./__spark_conf__/__hadoop_conf__/ozone-site.xml
   17179897734  208 -r-x------   1 bigdata  bigdata    209545 Nov 11 11:30 
./__spark_conf__/__spark_hadoop_conf__.xml
   17179897740    4 -r-x------   1 bigdata  bigdata      1138 Nov 11 11:30 
./__spark_conf__/__spark_conf__.properties
   17179897744    4 -r-x------   1 bigdata  bigdata       617 Nov 11 11:30 
./__spark_conf__/__spark_dist_cache__.properties
   ```
   
   In step a, load config from classpath. Here classpath contains 
HADOOP_CONF_DIR and \_\_spark_conf\_\_/\_\_hadoop_conf\_\_. HADOOP_CONF_DIR 
happend before \_\_spark_conf\_\_/\_\_hadoop_conf\_\_ , and HADOOP_CONF_DIR is 
the conf dir of nodemanager. so 
\_\_spark_conf\_\_/\_\_hadoop_conf\_\_/yarn-site.xml will be ignored.
   
   So In this PR, I load  \_\_spark_conf\_\_/__spark_hadoop_conf__.xml so that 
I can reload config from client.
   
   > Note: It happen in our yarn federation cluster, because the client config 
is different from nodemanager client.
   
   


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