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Re: JSON to Parquet conversion - Impala - [mail # user]
...One option is to use Kite + Flume to convert your incoming JSON stream toParquet. See https://github.com/kite-sdk/kite-examples/tree/master/json,with the following changes:1. Configure Flume...
   Author: Skye Wanderman-Milne, 2014-10-21, 22:31
Re: Getting Failed to parse file schema: Invalid JSON float in json_t_to_avro_value_helper - Impala - [mail # user]
...It looks like you have a file for table "x" that Impala is trying to read("Failed to parse *file schema*: ..."). Can you check that there are nofiles in HDFS for x? You can also try "invalid...
   Author: Skye Wanderman-Milne, 2014-09-26, 20:36
[expand - 4 more] - Re: How to debug a slow "select count(*) from .." - Impala - [mail # user]
...Ah, I guess it was an HDFS issue after all. Thanks for following up, andglad you resolved the issue!On Thu, Sep 4, 2014 at 12:35 AM, Laurens Bronwasser wrote:To unsubscribe from this group a...
   Author: Skye Wanderman-Milne, 2014-09-04, 21:11
[expand - 3 more] - Re: Invalid AVRO_VERSION_HEADER: '7b d a 20 ' - Impala - [mail # user]
...Hmm, if you haven't already, would you mind creating another tablecontaining the data file in Impala? (Basically do the same thing again inImpala.) I'm interested to know if this happens eve...
   Author: Skye Wanderman-Milne, 2014-08-20, 07:23
Re: Impala 1.4 Spiking above memory limit - Impala - [mail # user]
...What version of Impala are you running?On Fri, Aug 15, 2014 at 2:46 PM, Sean O'Brien  wrote:To unsubscribe from this group and stop receiving emails from it, send an email to impala-use...
   Author: Skye Wanderman-Milne, 2014-08-18, 18:40
[expand - 1 more] - Re: avro files and timestamps - Impala - [mail # user]
...Responses inline.On Thu, Jul 31, 2014 at 1:45 AM, Georgi Ivanov wrote:Instead of from_unixtime, use the following: cast(time_position / 1000 astimestamp)It is not possible to have a timestam...
   Author: Skye Wanderman-Milne, 2014-08-01, 02:15
[expand - 1 more] - Re: Cannot Insert Table from Hive to Impala - Impala - [mail # user]
...What is the Avro schema of the webdatain table? It looks like you have aninvalid float value somewhere in there.On Thu, Jun 19, 2014 at 4:00 PM, Soheil Eizadi  wrote:To unsubscribe from...
   Author: Skye Wanderman-Milne, 2014-06-19, 23:04
[expand - 2 more] - Re: Can Impala support binary data type? - Impala - [mail # user]
...If you have a CSV file with binary fields, you should be able to create atable over the data as you normally would, using string columns for thebinary data. I'm not sure what you mean by bin...
   Author: Skye Wanderman-Milne, 2014-06-19, 17:56
Re: Materializing rows in parallel? - Impala - [mail # user]
...Hi Keith,As you discovered, Parquet files can only be processed by a single thread.Thus you can increase thread concurrency by creating more smaller Parquetfiles, but I wouldn't suggest this...
   Author: Skye Wanderman-Milne, 2014-06-12, 02:00
[expand - 1 more] - Re: Converting old parquet table to be Hive friendly - Impala - [mail # user]
...Try the following in Impala: alter table  set fileformat parquet;The Hive serde class has changed since the table was created, so thatcommand should set the serde metadata to the correc...
   Author: Skye Wanderman-Milne, 2014-05-23, 17:11
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