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Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2016/07/25 20:01:20 UTC
[jira] [Updated] (PHOENIX-3112) Partial row scan not handled
correctly
[ https://issues.apache.org/jira/browse/PHOENIX-3112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
James Taylor updated PHOENIX-3112:
----------------------------------
Summary: Partial row scan not handled correctly (was: Rows randomly missing values with large select)
> Partial row scan not handled correctly
> --------------------------------------
>
> Key: PHOENIX-3112
> URL: https://issues.apache.org/jira/browse/PHOENIX-3112
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.7.0
> Reporter: Pierre Lacave
>
> When doing a select of a relatively large table (a few touthands rows) some rows return partially missing.
> When increasing the fitler to return those specific rows, the values appear as expected
> {noformat}
> CREATE TABLE IF NOT EXISTS TEST (
> BUCKET VARCHAR,
> TIMESTAMP_DATE TIMESTAMP,
> TIMESTAMP UNSIGNED_LONG NOT NULL,
> SRC VARCHAR,
> DST VARCHAR,
> ID VARCHAR,
> ION VARCHAR,
> IC BOOLEAN NOT NULL,
> MI UNSIGNED_LONG,
> AV UNSIGNED_LONG,
> MA UNSIGNED_LONG,
> CNT UNSIGNED_LONG,
> DUMMY VARCHAR
> CONSTRAINT pk PRIMARY KEY (BUCKET, TIMESTAMP DESC, SRC, DST, ID, ION, IC)
> );{noformat}
> using a python script to generate a CSV with 5000 rows
> {noformat}
> for i in xrange(5000):
> print "5SEC,2016-07-21 07:25:35.{i},146908593500{i},WWWWWWWW,AAA,BBBB,CCCCCCCC,false,{i}1181000,1788000{i},2497001{i},{i},aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa{i}".format(i=i)
> {noformat}
> bulk inserting the csv in the table
> {noformat}
> phoenix/bin/psql.py localhost -t TEST large.csv
> {noformat}
> here we can see one row that contains no TIMESTAMP_DATE and null values in MI and MA
> {noformat}
> 0: jdbc:phoenix:localhost:2181> select * from TEST
> ....
> +---------+--------------------------+-------------------+-----------+------+-------+-----------+--------+--------------+--------------+--------------+-------+----------------------------------------------------------------------------+
> | BUCKET | TIMESTAMP_DATE | TIMESTAMP | SRC | DST | ID | ION | IC | MI | AV | MA | CNT | DUMMY |
> +---------+--------------------------+-------------------+-----------+------+-------+-----------+--------+--------------+--------------+--------------+-------+----------------------------------------------------------------------------+
> | 5SEC | 2016-07-21 07:25:35.100 | 1469085935001000 | WWWWWWWW | AAA | BBBB | CCCCCCCC | false | 10001181000 | 17880001000 | 24970011000 | 1000 | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa1000 |
> | 5SEC | 2016-07-21 07:25:35.999 | 146908593500999 | WWWWWWWW | AAA | BBBB | CCCCCCCC | false | 9991181000 | 1788000999 | 2497001999 | 999 | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa999 |
> | 5SEC | 2016-07-21 07:25:35.998 | 146908593500998 | WWWWWWWW | AAA | BBBB | CCCCCCCC | false | 9981181000 | 1788000998 | 2497001998 | 998 | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa998 |
> | 5SEC | | 146908593500997 | WWWWWWWW | AAA | BBBB | CCCCCCCC | false | null | 1788000997 | null | 997 | |
> | 5SEC | 2016-07-21 07:25:35.996 | 146908593500996 | WWWWWWWW | AAA | BBBB | CCCCCCCC | false | 9961181000 | 1788000996 | 2497001996 | 996 | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa996 |
> | 5SEC | 2016-07-21 07:25:35.995 | 146908593500995 | WWWWWWWW | AAA | BBBB | CCCCCCCC | false | 9951181000 | 1788000995 | 2497001995 | 995 | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa995 |
> | 5SEC | 2016-07-21 07:25:35.994 | 146908593500994 | WWWWWWWW | AAA | BBBB | CCCCCCCC | false | 9941181000 | 1788000994 | 2497001994 | 994 | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa994 |
> ....
> {noformat}
> but when selecting that row specifically the values are correct
> {noformat}
> 0: jdbc:phoenix:localhost:2181> select * from TEST where timestamp = 146908593500997;
> +---------+--------------------------+------------------+-----------+------+-------+-----------+--------+-------------+-------------+-------------+------+---------------------------------------------------------------------------+
> | BUCKET | TIMESTAMP_DATE | TIMESTAMP | SRC | DST | ID | ION | IC | MI | AV | MA | CNT | DUMMY |
> +---------+--------------------------+------------------+-----------+------+-------+-----------+--------+-------------+-------------+-------------+------+---------------------------------------------------------------------------+
> | 5SEC | 2016-07-21 07:25:35.997 | 146908593500997 | WWWWWWWW | AAA | BBBB | CCCCCCCC | false | 9971181000 | 1788000997 | 2497001997 | 997 | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa997 |
> +---------+--------------------------+------------------+-----------+------+-------+-----------+--------+-------------+-------------+-------------+------+---------------------------------------------------------------------------+
> 1 row selected (0.159 seconds){noformat}
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