Oleksandr Shevchenko created HADOOP-15908:
---------------------------------------------
Summary: hadoop-build-tools jar is downloaded from remote
repository instead of using from local
Key: HADOOP-15908
URL: https://issues.apache.org/jira/browse/HADOOP-15908
Project: Hadoop Common
Issue Type: Bug
Reporter: Oleksandr Shevchenko
HADOOP-12893 added "maven-remote-resources-plugin" to hadoop-project/pom.xml to
verify LICENSE.txt and NOTICE.txt files which includes "hadoop-build-tools"
remote resource bundles.
{code}
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-remote-resources-plugin</artifactId>
<version>${maven-remote-resources-plugin.version}</version>
<configuration>
<resourceBundles>
<resourceBundle>org.apache.hadoop:hadoop-build-tools:${hadoop.version}</resourceBundle>
</resourceBundles>
</configuration>
<dependencies>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-build-tools</artifactId>
<version>${hadoop.version}</version>
</dependency>
</dependencies>
<executions>
<execution>
<goals>
<goal>process</goal>
</goals>
</execution>
</executions>
</plugin>
{code}
If we build only some module we always download " hadoop-build-tools" from
maven repository.
For example run:
cd hadoop-common-project/
mvn test
Then we will get the following output:
{noformat}
[INFO] --- maven-remote-resources-plugin:1.5:process (default) @
hadoop-annotations ---
Downloading from apache.snapshots:
http://repository.apache.org/snapshots/org/apache/hadoop/hadoop-build-tools/3.3.0-SNAPSHOT/maven-metadata.xml
Downloaded from apache.snapshots:
http://repository.apache.org/snapshots/org/apache/hadoop/hadoop-build-tools/3.3.0-SNAPSHOT/maven-metadata.xml
(791 B at 684 B/s)
Downloading from apache.snapshots:
http://repository.apache.org/snapshots/org/apache/hadoop/hadoop-main/3.3.0-SNAPSHOT/maven-metadata.xml
Downloaded from apache.snapshots:
http://repository.apache.org/snapshots/org/apache/hadoop/hadoop-main/3.3.0-SNAPSHOT/maven-metadata.xml
(609 B at 547 B/s)
Downloading from apache.snapshots.https:
https://repository.apache.org/content/repositories/snapshots/org/apache/hadoop/hadoop-build-tools/3.3.0-SNAPSHOT/maven-metadata.xml
Downloaded from apache.snapshots.https:
https://repository.apache.org/content/repositories/snapshots/org/apache/hadoop/hadoop-build-tools/3.3.0-SNAPSHOT/maven-metadata.xml
(791 B at 343 B/s)
Downloading from apache.snapshots.https:
https://repository.apache.org/content/repositories/snapshots/org/apache/hadoop/hadoop-build-tools/3.3.0-SNAPSHOT/hadoop-build-tools-3.3.0-20181022.232020-179.jar
Downloaded from apache.snapshots.https:
https://repository.apache.org/content/repositories/snapshots/org/apache/hadoop/hadoop-build-tools/3.3.0-SNAPSHOT/hadoop-build-tools-3.3.0-20181022.232020-179.jar
(0 B at 0 B/s)
{noformat}
If "hadoop-build-tools" jar doesn't exist in maven repository (for example we
try to build new version locally before repository will be created ) we can't
build some module:
For example run:
cd hadoop-common-project/
mvn test
Then we will get the following output:
{noformat}
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-remote-resources-plugin:1.5:process (default) on
project hadoop-annotations: Execution default of goal
org.apache.maven.plugins:maven-remote-resources-plugin:1.5:process failed:
Plugin org.apache.maven.plugins:maven-remote-resources-plugin:1.5 or one of its
dependencies could not be resolved: Failure to find
org.apache.hadoop:hadoop-build-tools:jar:3.2.0 in
https://repo.maven.apache.org/maven2 was cached in the local repository,
resolution will not be reattempted until the update interval of central has
elapsed or updates are forced -> [Help 1]
{noformat}
Therefore, we need to limit execution of the Remote Resources Plugin only in
the root directory in which the build was run.
To accomplish this, we can use the "runOnlyAtExecutionRoot parameter"
>From maven documentation
>http://maven.apache.org/plugins/maven-remote-resources-plugin/usage.html
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