[jira] [Comment Edited] (HAWQ-133) core when use plpython udf

["Ruilong Huo (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HAWQ-133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15114886#comment-15114886 ] 

Ruilong Huo edited comment on HAWQ-133 at 1/25/16 8:16 AM:
-----------------------------------------------------------

https://github.com/apache/incubator-hawq/pull/261.patch is not fix for this issue.
Root cause for this issue has been identified: resource for prepared statement is not allocated accordingly in its 2nd run and afterwards.
I am currently occupied higher priority stuff and thus there is no ETA to revisit this issue at present:)


was (Author: huor):
https://github.com/apache/incubator-hawq/pull/261.patch is not fix for this issue.
Root cause for this issue has been identified: resource for prepared statement is not allocated accordingly in its 2nd run and afterwards.
I am currently occupied higher priority stuff and thus there is no ETA to revisit this issue.

> core when use plpython udf
> --------------------------
>
>                 Key: HAWQ-133
>                 URL: https://issues.apache.org/jira/browse/HAWQ-133
>             Project: Apache HAWQ
>          Issue Type: Bug
>            Reporter: Dong Li
>            Assignee: Ruilong Huo
>             Fix For: 2.0.0
>
>
> Run sqls below can recur the core.
> {code}
> CREATE PROCEDURAL LANGUAGE plpythonu;
> CREATE TABLE users (
> 	fname text not null,
> 	lname text not null,
> 	username text,
> 	userid serial
> 	-- , PRIMARY KEY(lname, fname) 
> 	) DISTRIBUTED BY (userid);
> INSERT INTO users (fname, lname, username) VALUES ('jane', 'doe', 'j_doe');
> INSERT INTO users (fname, lname, username) VALUES ('john', 'doe', 'johnd');
> INSERT INTO users (fname, lname, username) VALUES ('willem', 'doe', 'w_doe');
> INSERT INTO users (fname, lname, username) VALUES ('rick', 'smith', 'slash');
> CREATE FUNCTION spi_prepared_plan_test_one(a text) RETURNS text
> 	AS
> 'if not SD.has_key("myplan"):
> 	q = "SELECT count(*) FROM users WHERE lname = $1"
> 	SD["myplan"] = plpy.prepare(q, [ "text" ])
> try:
> 	rv = plpy.execute(SD["myplan"], [a])
> 	return "there are " + str(rv[0]["count"]) + " " + str(a) + "s"
> except Exception, ex:
> 	plpy.error(str(ex))
> return None
> '
> 	LANGUAGE plpythonu;
> select spi_prepared_plan_test_one('doe');
> select spi_prepared_plan_test_one('smith');
> {code}
> when execute "select spi_prepared_plan_test_one('smith');"
> server closed the connection unexpectedly
> 	This probably means the server terminated abnormally
> 	before or while processing the request.
> The connection to the server was lost. Attempting reset: Failed.
> !>



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