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From Rahul Raj <rahul....@option3consulting.com>
Subject Kudu plugin
Date Thu, 26 Jan 2017 06:03:37 GMT
Any experiences with Kudu storage plugin? I could see that there has been
no activity on kudu storage almost for a year.

Getting an error -" out-of-order key" for a query select v,count(k) from
kudu.test group by v where k is the primary key. This happens only when the
aggregation is done on primary key. Should drill move to the latest kudu
client to investigate this further?

Current drill kudu connector uses org.kududb:kudu-client:0.6.0 from
cloudera repository, where the latest released library
org.apache.kudu:kudu-client:1.1.0 is hosted on maven central. There are a
few breaking changes with the new library:

   1. TIMESTAMP renamed to UNIXTIME_MICROS
   2. In KuduRecordReader#setup -
   KuduScannerBuilder#lowerBoundPartitionKeyRaw renamed to lowerBoundRaw
   andKuduScannerBuilder#exclusiveUpperBoundPartitionKeyRaw renamed
   exclusiveUpperBoundRaw. Both methods are deprecated.
   3. In KuduRecordWriterImpl#updateSchema - client.createTable(name,
   kuduSchema) requires CreateTableOperatios as the third argument


Any thoughts on this upgrade?

Regards,
Rahul

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