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Haibo Chen commented on YARN-6628: ---------------------------------- Based on its pom file, fst depends on jackson-core:2.8.8 {code:xml} <!-- required for createJSONConfiguration --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.8.8</version> </dependency> {code} It is overridden by the version specified in hadoop-2.8, which is 2.2.3. That's why jackson-core-2.2.3.jar is in share/hadoop/yarn/lib {code:xml} \- de.ruedigermoeller:fst:jar:2.50:compile +- com.fasterxml.jackson.core:jackson-core:jar:2.2.3:compile (version managed from 2.8.8) \- com.cedarsoftware:java-util:jar:1.9.0:compile \- com.cedarsoftware:json-io:jar:2.5.1:compile {code} Strangely enough, according to mvn dependency:tree, jackson-core is not dependent on by fst in trunk {code} \- de.ruedigermoeller:fst:jar:2.50:compile \- com.cedarsoftware:java-util:jar:1.9.0:compile \- com.cedarsoftware:json-io:jar:2.5.1:compile {code} and jackson-core.jar is NOT in share/hadoop/yarn/lib/ even though hadoop-yarn-common and other modules depend on it. {code} +- org.apache.hadoop:hadoop-yarn-common:jar:3.0.0-alpha3-SNAPSHOT:compile +- com.fasterxml.jackson.core:jackson-core:jar:2.7.8:compile +- com.fasterxml.jackson.module:jackson-module-jaxb-annotations:jar:2.7.8:compile \- com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:jar:2.7.8:compile \- com.fasterxml.jackson.jaxrs:jackson-jaxrs-base:jar:2.7.8:compile {code} Any idea how this could have happened? > Unexpected jackson-core-2.2.3 dependency introduced > --------------------------------------------------- > > Key: YARN-6628 > URL: https://issues.apache.org/jira/browse/YARN-6628 > Project: Hadoop YARN > Issue Type: Bug > Components: timelineserver > Affects Versions: 2.8.1 > Reporter: Jason Lowe > Priority: Blocker > > The change in YARN-5894 caused jackson-core-2.2.3.jar to be added in > share/hadoop/yarn/lib/. This added dependency seems to be incompatible with > jackson-core-asl-1.9.13.jar which is also shipped as a dependency. This new > jackson-core jar ends up breaking jobs that ran fine on 2.8.0. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org