greenplum_externaltable_error_http_code_404
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了greenplum_externaltable_error_http_code_404,小编现在分享给大家,供广大互联网技能从业者学习和参考。文章包含5277字,纯文字阅读大概需要8分钟。
内容图文
![greenplum_externaltable_error_http_code_404](/upload/InfoBanner/zyjiaocheng/563/0e9d8021717f4a86af02bf2d9deefda2.jpg)
开发反馈在使用外部表的时候遇到ERROR: http response code 404错误,经过测试和模拟得以解决。 首先模拟下问题: [gpadmin@gtlions50 ~]$ psql gtlions psql (8.2.15) Type help for help. gtlions=# drop external table ext_rt_recv_msg_gprs; ERROR: tabl
开发反馈在使用外部表的时候遇到ERROR: http response code 404错误,经过测试和模拟得以解决。首先模拟下问题:
[gpadmin@gtlions50 ~]$ psql gtlions
psql (8.2.15)
Type "help" for help.
gtlions=# drop external table ext_rt_recv_msg_gprs;
ERROR: table "ext_rt_recv_msg_gprs" does not exist
gtlions=# drop table ext_err_rt_recv_msg_gprs;
ERROR: table "ext_err_rt_recv_msg_gprs" does not exist
gtlions=# create external table ext_rt_recv_msg_gprs
gtlions-# ( recv_time timestamp,
gtlions(# trigger_type int,
gtlions(# rating_group bigint,
gtlions(# session_id varchar(80),
gtlions(# mscc_count int )
gtlions-# location
gtlions-# ( 'gpfdist://192.168.56.10:8081/1/*',
gtlions(# 'gpfdist://192.168.56.10:8081/2/*' )
gtlions-# format 'text' ( delimiter '|' null '')
gtlions-# encoding 'gbk'
gtlions-# log errors into ext_err_rt_recv_msg_gprs
gtlions-# segment reject limit 100 percent;
NOTICE: Error table "ext_err_rt_recv_msg_gprs" does not exist. Auto generating an error table with the same name
CREATE EXTERNAL TABLE
gtlions=# select * from ext_rt_recv_msg_gprs;
ERROR: http response code 404 from gpfdist (gpfdist://192.168.56.10:8081/2/*): HTTP/1.0 404 file not found (url.c:326) (seg1 slice1 gtlions52:40001 pid=2584) (cdbdisp.c:1476)
经过测试,使用linux网络工具是可以正确获取到文件的,因此怀疑是SQL语句有问题,尝试如下:
gtlions=# drop external table ext_rt_recv_msg_gprs;
DROP EXTERNAL TABLE
gtlions=# drop table ext_err_rt_recv_msg_gprs;
DROP TABLE
gtlions=# drop external table if exists ext_rt_recv_msg_gprs;
NOTICE: table "ext_rt_recv_msg_gprs" does not exist, skipping
DROP EXTERNAL TABLE
gtlions=# drop table if exists ext_err_rt_recv_msg_gprs;
NOTICE: table "ext_err_rt_recv_msg_gprs" does not exist, skipping
DROP TABLE
gtlions=# create external table ext_rt_recv_msg_gprs
gtlions-# ( recv_time timestamp,
gtlions(# trigger_type int,
gtlions(# rating_group bigint,
gtlions(# session_id varchar(80),
gtlions(# mscc_count int )
gtlions-# location
gtlions-# ( 'gpfdist://192.168.56.10:8081/*/*')
gtlions-# format 'text' ( delimiter '|' null '')
gtlions-# encoding 'gbk'
gtlions-# log errors into ext_err_rt_recv_msg_gprs
gtlions-# segment reject limit 100 percent;
NOTICE: Error table "ext_err_rt_recv_msg_gprs" does not exist. Auto generating an error table with the same name
CREATE EXTERNAL TABLE
gtlions=# select * from ext_rt_recv_msg_gprs;
recv_time | trigger_type | rating_group | session_id | mscc_count
----------------------------+--------------+--------------+---------------------------+------------
2014-03-24 23:59:56.123456 | 251 | 25111 | 25tst_ext_data_table row1 | 503001
2014-03-25 16:11:36.123 | 252 | 25222 | 25tst_ext_data_table row2 | 503002
2014-03-25 16:11:36 | 253 | 25333 | 25tst_ext_data_table row3 | 503003
2014-03-25 16:11:36.123456 | 254 | 25444 | 25tst_ext_data_table row4 | 503004
2014-03-25 16:11:36.223456 | 255 | 25555 | 25tst_ext_data_table row5 | 503005
2014-03-25 16:11:36.323456 | 256 | 25666 | 25tst_ext_data_table row6 | 503006
2014-03-25 00:00:00 | 257 | 25777 | 25tst_ext_data_table row7 |
(7 rows)
gtlions=# drop external table if exists ext_rt_recv_msg_gprs;
DROP EXTERNAL TABLE
gtlions=# drop table if exists ext_err_rt_recv_msg_gprs;
DROP TABLE
gtlions=# create external table ext_rt_recv_msg_gprs
gtlions-# ( recv_time timestamp,
gtlions(# trigger_type int,
gtlions(# rating_group bigint,
gtlions(# session_id varchar(80),
gtlions(# mscc_count int )
gtlions-# location
gtlions-# ( 'gpfdist://192.168.56.10:8081/*')
gtlions-# format 'text' ( delimiter '|' null '')
gtlions-# encoding 'gbk'
gtlions-# log errors into ext_err_rt_recv_msg_gprs
gtlions-# segment reject limit 100 percent;
NOTICE: Error table "ext_err_rt_recv_msg_gprs" does not exist. Auto generating an error table with the same name
CREATE EXTERNAL TABLE
gtlions=# select * from ext_rt_recv_msg_gprs;
recv_time | trigger_type | rating_group | session_id | mscc_count
----------------------------+--------------+--------------+---------------------------+------------
2014-03-24 23:59:56.123456 | 251 | 25111 | 25tst_ext_data_table row1 | 503001
2014-03-25 16:11:36.123 | 252 | 25222 | 25tst_ext_data_table row2 | 503002
2014-03-25 16:11:36 | 253 | 25333 | 25tst_ext_data_table row3 | 503003
2014-03-25 16:11:36.123456 | 254 | 25444 | 25tst_ext_data_table row4 | 503004
2014-03-25 16:11:36.223456 | 255 | 25555 | 25tst_ext_data_table row5 | 503005
2014-03-25 16:11:36.323456 | 256 | 25666 | 25tst_ext_data_table row6 | 503006
2014-03-25 00:00:00 | 257 | 25777 | 25tst_ext_data_table row7 |
(7 rows)
ok了,问题解决了,原来是同一个url不能出现多次的原因。
-EOF-
内容总结
以上是互联网集市为您收集整理的greenplum_externaltable_error_http_code_404全部内容,希望文章能够帮你解决greenplum_externaltable_error_http_code_404所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错,欢迎将互联网集市网站推荐给程序员好友。
内容备注
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 gblab@vip.qq.com 举报,一经查实,本站将立刻删除。
内容手机端
扫描二维码推送至手机访问。