Thank you, Ed. Trying it now, but I need the following package to build HiveUtil: com.media6.hive2rdbms.common.Hive2RdbmsConf; can you point me to where I can get it from?
On Feb 22, 2011, at 10:51 AM, Edward Capriolo wrote: > On Mon, Feb 21, 2011 at 7:31 PM, Edward Capriolo <edlinuxg...@gmail.com> > wrote: >> On Mon, Feb 21, 2011 at 6:42 PM, Jay Ramadorai >> <jramado...@tripadvisor.com> wrote: >>> Does anyone have a way of generating the create table statement for a table >>> that is in Hive? I see a jira for >>> this https://issues.apache.org/jira/browse/HIVE-967 and it appears that Ed >>> Capriolo might have a solution for this. Ed, are you able to share this >>> solution? >>> My goal is to copy a bunch of Hive tables from one cluster to another. What >>> I'd like to do is generate the DDL from one cluster and run it on the other, >>> and then use DISTCP with lots of mappers to parallel-copy the table-data >>> between the clusters. FYI, my metadata is in Derby. I could backup and >>> restore the metadata directories but I dont want a copy of all the tables >>> from the source database, only a subset. >>> I tried Sqooping the table out of Hive, but it runs into : >>> 11/02/21 18:23:50 ERROR manager.SqlManager: Error executing statement: >>> java.sql.SQLException: Method not supported >>> 11/02/21 18:23:50 ERROR sqoop.Sqoop: Got exception running Sqoop: >>> java.lang.NullPointerException >>> java.lang.NullPointerException >>> at >>> com.cloudera.sqoop.hive.TableDefWriter.getCreateTableStmt(TableDefWriter.java:133) >>> Apparently the Hive Thrift jdbc driver doesnt support extracting table >>> metadata. >>> Please feel free to suggest alternative approaches. >>> thanks >>> Jay >>> >>> >> I do have some code that can generate DML. It is a separate problem >> that talks to the metastore (outside of the hive cli). I will throw >> the code up in the Jira tomorrow. However the plan for the Jira is to >> incorporate this in hive with a show create table. >> > > Jay, > > I uploaded my "show create table" program to > https://issues.apache.org/jira/browse/HIVE-967. > > Caveats: This is a program you need to build against hive lib files. > Caveats: There are edge cases where this will not produce the correct > show table statement (hbase storage handler for example) > Caveats: Does actually work though ! > > Enjoy
