重庆分公司
重庆分公司，新征程启航
为企业提供网站建设、域名注册、服务器等服务
mysqldgotsignal举例分析
这篇文章主要介绍“MySQLd got signal举例分析”，在日常操作中，相信很多人在mysqld got signal举例分析问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”mysqld got signal举例分析”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
创新互联公司制作网站网页找三站合一网站制作公司,专注于网页设计,成都做网站、网站制作、成都外贸网站建设,网站设计,企业网站搭建,网站开发,建网站业务,680元做网站,已为近1000家服务,创新互联公司网站建设将一如既往的为我们的客户提供最优质的网站建设、网络营销推广服务!
Description: When SELECTing from a timestamp based range partition where the table has no partition to handle values less than MAXVALUE and the SELECT condition reads from the last partition or greater, mysqld gets a signal 8.
Repeatable with 5.5.23, 5.5.24 and 5.5.25, NOT with 5.5.20, 5.5.21, 5.5.22 How to repeat: [revin@forge msb_5_5_24]$ ./use test
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.24 MySQL Community Server (GPL)
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql [localhost] {msandbox} (test) > show create table table_XXXXX \G
*************************** 1. row ***************************
Table: table_XXXXX
Create Table: CREATE TABLE `table_XXXXX` (
`record_type` smallint(5) unsigned NOT NULL,
`timestamp` int(10) unsigned NOT NULL,
`meta_pos_id` smallint(5) unsigned NOT NULL,
`value` mediumint(8) unsigned NOT NULL,
KEY `ts_rtype` (`timestamp`,`record_type`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY RANGE (timestamp)
(PARTITION 2012y03m VALUES LESS THAN (1333238400) ENGINE = InnoDB,
PARTITION 2012y04m VALUES LESS THAN (1335830400) ENGINE = InnoDB,
PARTITION 2012y05m VALUES LESS THAN (1338508800) ENGINE = InnoDB,
PARTITION 2012y06m VALUES LESS THAN (1341100800) ENGINE = InnoDB) */
1 row in set (0.00 sec)
mysql [localhost] {msandbox} (test) > SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1338508800;
+----------+
| COUNT(*) |
+----------+
| 0 |
+----------+
1 row in set (0.00 sec)
mysql [localhost] {msandbox} (test) > SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1341100799;
ERROR 2013 (HY000): Lost connection to MySQL server during query Suggested fix: NA, but a workaround is to add a partition to handle values less than MAXVALUE.Backtrace from core file during one of the crashes. Attachment: 23293-backtrace.txt (text/plain), 13.89 KiB.
Error log from sandbox creation to crash then restart. Attachment: 23293-error-log.txt (text/plain), 9.63 KiB.
Thank you for the bug report. Indeed repeatable with 5.5.24 but not anymore with current source: Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved. h:\dbs>55 h:\dbs>h:\dbs\5.5\bin\mysql -uroot --port=3540 --prompt="mysql 5.5 >" Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.5.24 Source distribution Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql 5.5 >use test Database changed mysql 5.5 >CREATE TABLE `table_XXXXX` ( -> `record_type` smallint(5) unsigned NOT NULL, -> `timestamp` int(10) unsigned NOT NULL, -> `meta_pos_id` smallint(5) unsigned NOT NULL, -> `value` mediumint(8) unsigned NOT NULL, -> KEY `ts_rtype` (`timestamp`,`record_type`) -> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 -> /*!50100 PARTITION BY RANGE (timestamp) -> (PARTITION 2012y03m VALUES LESS THAN (1333238400) ENGINE = InnoDB, -> PARTITION 2012y04m VALUES LESS THAN (1335830400) ENGINE = InnoDB, -> PARTITION 2012y05m VALUES LESS THAN (1338508800) ENGINE = InnoDB, -> PARTITION 2012y06m VALUES LESS THAN (1341100800) ENGINE = InnoDB) */; Query OK, 0 rows affected (0.88 sec) mysql 5.5 >SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1338508800; +----------+ | COUNT(*) | +----------+ | 0 | +----------+ 1 row in set (0.00 sec) mysql 5.5 >SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1341100799; ERROR 2013 (HY000): Lost connection to MySQL server during query mysql 5.5 > Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved. d:\dbs>55 d:\dbs>d:\dbs\5.5\bin\mysql -uroot --port=3541 --prompt="mysql 5.5 >" Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.5.26 Source distribution Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql 5.5 >use test Database changed mysql 5.5 >CREATE TABLE `table_XXXXX` ( -> `record_type` smallint(5) unsigned NOT NULL, -> `timestamp` int(10) unsigned NOT NULL, -> `meta_pos_id` smallint(5) unsigned NOT NULL, -> `value` mediumint(8) unsigned NOT NULL, -> KEY `ts_rtype` (`timestamp`,`record_type`) -> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 -> /*!50100 PARTITION BY RANGE (timestamp) -> (PARTITION 2012y03m VALUES LESS THAN (1333238400) ENGINE = InnoDB, -> PARTITION 2012y04m VALUES LESS THAN (1335830400) ENGINE = InnoDB, -> PARTITION 2012y05m VALUES LESS THAN (1338508800) ENGINE = InnoDB, -> PARTITION 2012y06m VALUES LESS THAN (1341100800) ENGINE = InnoDB) */; Query OK, 0 rows affected (0.24 sec) mysql 5.5 >SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1338508800; +----------+ | COUNT(*) | +----------+ | 0 | +----------+ 1 row in set (0.05 sec) mysql 5.5 >SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1341100799; +----------+ | COUNT(*) | +----------+ | 0 | +----------+ 1 row in set (0.00 sec) mysql 5.5 >
Miguel, have you tried with 5.5.25 official Oracle binaries as I did?
Not sure why this is still marked as can't repeat - have you tested with official Oracle binaries yet?
The problem still exists on 5.5.25a, not sure why this is still can't repeat?
[revin@forge mysql]$ sb 5525
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.5.25a MySQL Community Server (GPL)
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql [localhost] {msandbox} ((none)) > use test;
Database changed
mysql [localhost] {msandbox} (test) > CREATE TABLE `table_XXXXX` (
-> `record_type` smallint(5) unsigned NOT NULL,
-> `timestamp` int(10) unsigned NOT NULL,
-> `meta_pos_id` smallint(5) unsigned NOT NULL,
-> `value` mediumint(8) unsigned NOT NULL,
-> KEY `ts_rtype` (`timestamp`,`record_type`)
-> ) ENGINE=InnoDB DEFAULT CHARSET=latin1
-> /*!50100 PARTITION BY RANGE (timestamp)
-> (PARTITION 2012y03m VALUES LESS THAN (1333238400) ENGINE = InnoDB,
-> PARTITION 2012y04m VALUES LESS THAN (1335830400) ENGINE = InnoDB,
-> PARTITION 2012y05m VALUES LESS THAN (1338508800) ENGINE = InnoDB,
-> PARTITION 2012y06m VALUES LESS THAN (1341100800) ENGINE = InnoDB) */
-> ;
Query OK, 0 rows affected (0.01 sec)
mysql [localhost] {msandbox} (test) > SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1338508800;
+----------+
| COUNT(*) |
+----------+
| 0 |
+----------+
1 row in set (0.00 sec)
mysql [localhost] {msandbox} (test) > SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1341100799;
ERROR 2013 (HY000): Lost connection to MySQL server during query
mysql [localhost] {msandbox} (test) >This is a know bug that is fixed in current code: macbook-pro:5.5 openxs$ bin/mysql -uroot test Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.5.28-debug Source distribution Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> CREATE TABLE `table_XXXXX` ( -> `record_type` smallint(5) unsigned NOT NULL, -> `timestamp` int(10) unsigned NOT NULL, -> `meta_pos_id` smallint(5) unsigned NOT NULL, -> `value` mediumint(8) unsigned NOT NULL, -> KEY `ts_rtype` (`timestamp`,`record_type`) -> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 -> /*!50100 PARTITION BY RANGE (timestamp) -> (PARTITION 2012y03m VALUES LESS THAN (1333238400) ENGINE = InnoDB, -> PARTITION 2012y04m VALUES LESS THAN (1335830400) ENGINE = InnoDB, -> PARTITION 2012y05m VALUES LESS THAN (1338508800) ENGINE = InnoDB, -> PARTITION 2012y06m VALUES LESS THAN (1341100800) ENGINE = InnoDB) */; Query OK, 0 rows affected (0.07 sec) mysql> SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1338508800; +----------+ | COUNT(*) | +----------+ | 0 | +----------+ 1 row in set (0.00 sec) mysql> SELECT COUNT(*) FROM table_XXXXX WHERE `timestamp` > 1341100799; +----------+ | COUNT(*) | +----------+ | 0 | +----------+ 1 row in set (0.00 sec) So, please, wait for the official release of 5.5.27 with the fix.
Valeriy, Thanks - looks like Miguel tested with 5.5.26 - is this coming to .26 or .27 as you mentioned?
Ahh, nvm, found my answer :) http://dev.mysql.com/doc/refman/5.5/en/news-5-5-26.html
到此，关于“mysqld got signal举例分析”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注创新互联网站，小编会继续努力为大家带来更多实用的文章！
网页标题：mysqldgotsignal举例分析
文章地址：http://cqcxhl.cn/article/gcpphd.html