Hi Todd, thanks for your help. Manually reopening the table and building a new scanner while catching the exception worked for me. Now I'm facing the same problem with write operations. While writing the exception gets thrown on closing the KuduSession (?) instead of the upsert/insert/delete, so its not possible for me to catch it at the right spot. The only solution I found for this is reopening the table on every write. Its' not really viable, because it results in 2x runtime.
Regards, Philipp ________________________________ Von: Todd Lipcon [[email protected]] Gesendet: Dienstag, 5. Juni 2018 19:22 An: [email protected] Betreff: Re: Java KuduClient table references Hi Philipp, What you're seeing is expected -- internally, after you open a table, the client will use that table's internal UUID rather than its name to perform operations. This is similar semantics to opening a file and then renaming it on a POSIX filesystem. Creating a new KuduClient instance should definitely result in new Table instances. There is no singleton or cross-client-instance caching going on. In fact, even re-opening the table from an existing client instance should return a new KuduTable instance, since we don't cache the table->tableId mapping as far as I can recall. Are you sure that you properly called 'openTable' to get a new KuduTable instance, and are using that new KuduTable to create the new scanners? -Todd On Tue, Jun 5, 2018 at 1:50 AM, Philipp-A Hoffmann <[email protected]<mailto:[email protected]>> wrote: Hi there, I'm experiencing the following issue with the Java Kudu API: If I'm re-creating my tables (no schema changes) in Impala while my Kudu application is running, Kudu keeps the old table references. That results in a warning ("org.apache.kudu.client.AsyncKuduScanner: Can not open scanner") followed by an exception ("NonRecoverableException: The table was deleted: Table deleted at ...") while accessing the table. I've tried to create a new KuduClient instance using the KuduClientBuilder, but it's still getting the old table references. Is there any way to clear these references? Kind regards, Philipp Die Europäische Kommission hat unter http://ec.europa.eu/consumers/odr/ eine Europäische Online-Streitbeilegungsplattform (OS-Plattform) errichtet. Verbraucher können die OS-Plattform für die außergerichtliche Beilegung von Streitigkeiten aus Online-Verträgen mit in der EU niedergelassenen Unternehmen nutzen. Informationen (einschließlich Pflichtangaben) zu einzelnen, innerhalb der EU tätigen Gesellschaften und Zweigniederlassungen der DB Privat- und Firmenkundenbank AG finden Sie unter https://www.postbank.de/pflichtangaben. Diese E-Mail enthält vertrauliche und/ oder rechtlich geschützte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser E-Mail ist nicht gestattet. The European Commission has established a European online dispute resolution platform (OS platform) under http://ec.europa.eu/consumers/odr/. Consumers may use the OS platform to resolve disputes arising from online contracts with providers established in the EU. Please refer to https://www.postbank.com/disclosures for information (including mandatory corporate particulars) on selected branches and group companies registered or incorporated in the European Union. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and delete this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. -- Todd Lipcon Software Engineer, Cloudera Die Europäische Kommission hat unter http://ec.europa.eu/consumers/odr/ eine Europäische Online-Streitbeilegungsplattform (OS-Plattform) errichtet. Verbraucher können die OS-Plattform für die außergerichtliche Beilegung von Streitigkeiten aus Online-Verträgen mit in der EU niedergelassenen Unternehmen nutzen. Informationen (einschließlich Pflichtangaben) zu einzelnen, innerhalb der EU tätigen Gesellschaften und Zweigniederlassungen der DB Privat- und Firmenkundenbank AG finden Sie unter https://www.postbank.de/pflichtangaben. Diese E-Mail enthält vertrauliche und/ oder rechtlich geschützte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser E-Mail ist nicht gestattet. The European Commission has established a European online dispute resolution platform (OS platform) under http://ec.europa.eu/consumers/odr/. Consumers may use the OS platform to resolve disputes arising from online contracts with providers established in the EU. Please refer to https://www.postbank.com/disclosures for information (including mandatory corporate particulars) on selected branches and group companies registered or incorporated in the European Union. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and delete this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
