hddong opened a new pull request #1096: [HUDI-398]Add set env for spark launcher URL: https://github.com/apache/incubator-hudi/pull/1096 ## *Tips* - *Thank you very much for contributing to Apache Hudi.* - *Please review https://hudi.apache.org/contributing.html before opening a pull request.* ## What is the purpose of the pull request *It always throw exception `SPAR_HOEM not found` when SPARK_HOME is not set, so we need quit and set it. ``` hudi:hudi_cow_table->commit rollback --commit 20191210155859 Command failed java.lang.IllegalStateException: Spark home not found; set it explicitly or use the SPARK_HOME environment variable. Listening for transport dt_socket at address: 5005 Spark home not found; set it explicitly or use the SPARK_HOME environment variable. java.lang.IllegalStateException: Spark home not found; set it explicitly or use the SPARK_HOME environment variable. at org.apache.spark.launcher.CommandBuilderUtils.checkState(CommandBuilderUtils.java:248) at org.apache.spark.launcher.AbstractCommandBuilder.getSparkHome(AbstractCommandBuilder.java:248) ``` After add this function for cli, we can type SPARK_HOEM and other conf on hudi-CLI: `[hudi->set --conf SPARK_HOME=/usr/bch/3.0.1/spark` * ## Brief change log *(for example:)* - *add a new cli command to set conf for spark launcher* ## Verify this pull request This pull request is a trivial rework / code cleanup without any test coverage. ## Committer checklist - [ ] Has a corresponding JIRA in PR title & commit - [ ] Commit message is descriptive of the change - [ ] CI is green - [ ] Necessary doc changes done or have another open PR - [ ] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA.
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