You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@zeppelin.apache.org by GitBox <gi...@apache.org> on 2019/11/24 15:41:46 UTC

[GitHub] [zeppelin] alexott opened a new pull request #3527: [ZEPPELIN-4444] Fix schema disagreement when execute DDL statements

alexott opened a new pull request #3527: [ZEPPELIN-4444] Fix schema disagreement when execute DDL statements
URL: https://github.com/apache/zeppelin/pull/3527
 
 
   ### What is this PR for?
   
   When executing DDL statements (`CREATE`/`ALTER`/`DROP`) it's possible get schema disagreement in Cassandra, especially for big/geo-distributed clusters. Java driver has a special handling of such statements, with increased timeout, but it's still possible that next DDL statement will be executed before all nodes agree on the schema version, and this could lead to schema disagreement that need to be resolved by administrators.
   
   ### What type of PR is it?
   Improvement
   
   ### What is the Jira issue?
   
   https://issues.apache.org/jira/browse/ZEPPELIN-4444
   
   ### How should this be tested?
   
   * Added the unit test
   * Tested manually
   * Travis CI: https://travis-ci.org/alexott/zeppelin/builds/616294898
   

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services