Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

MYSQL 5.0 ÒÔÉÏ 8Сʱ³¬Ê±ÎÊÌâ


Ó¦ÓóÌÐòºÍÊý¾Ý¿â½¨Á¢Á¬½Ó£¬Èç¹û³¬¹ý8СʱӦÓóÌÐò²»È¥·ÃÎÊÊý¾Ý¿â£¬Êý¾Ý¿â¾Í¶ÏµôÁ¬½Ó ¡£ÕâʱÔٴηÃÎʾͻáÅ׳öÒì³££¬ÈçÏÂËùʾ£º
java.io.EOFException
    at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1913)
    at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2304)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2803)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1573)
...
²éÁËһϷ¢ÏÖÓ¦ÓóÌÐòºÍmysqlÊý¾Ý¿â½¨Á¢Á¬½Ó£¬Èç¹û³¬¹ý8СʱӦÓóÌÐò²»È¥·ÃÎÊÊý¾Ý¿â£¬Êý¾Ý¿â¾Í¶ÏµôÁ¬½Ó ¡£ÕâʱÔٴηÃÎʾͻáÅ׳öÒì³£¡£
¹ØÓÚmysql×Ô¶¯¶Ï¿ªµÄÎÊÌâÑо¿½á¹ûÈçÏ£¬ÔÚmysqlÖÐÓÐÏà¹Ø²ÎÊýÉ趨£¬µ±Êý¾Ý¿âÁ¬½Ó¿ÕÏÐÒ»¶¨Ê±¼äºó£¬·þÎñÆ÷¾Í»á¶Ï¿ªµÈ´ý³¬Ê±µÄÁ¬½Ó£º
1¡¢Ïà¹Ø²ÎÊý£¬ºìÉ«²¿·Ö
mysql> show variables like '%timeout%';
+--------------------------+-------+
| Variable_name            | Value |
+--------------------------+-------+
| connect_timeout          | 5     |
| delayed_insert_timeout   | 300   |
| innodb_lock_wait_timeout | 50    |
| interactive_timeout      | 28800 |
| net_read_timeout         | 30    |
| net_write_timeout        | 60    |
| slave_net_timeout        | 3600 |
| wait_timeout             | 28800 |
+--------------------------+-------+        
ͬһʱ¼ä£¬ÕâÁ½¸ö²ÎÊýÖ»ÓÐÒ»¸öÆð×÷Óᣵ½µ×ÊÇÄĸö²ÎÊýÆð×÷Ó㬺ÍÓû§Á¬½Óʱָ¶¨µÄÁ¬½Ó²ÎÊýÏà¹Ø£¬È±Ê¡Çé¿öÏÂÊÇʹÓÃwait_timeout¡£ÎÒ½¨ÒéÊǽ«ÕâÁ½¸ö²ÎÊý¶¼Ð޸ģ¬ÒÔÃâÒýÆð²»±ØÒªµÄÂé·³¡£
2¡¢Ð޸IJÎÊý
ÕâÁ½¸ö²ÎÊýµÄĬÈÏÖµÊÇ8Сʱ(60*60*8=28800)¡£ÎÒ²âÊÔ¹ý½«ÕâÁ½¸ö²ÎÊý¸ÄΪ0£¬½á¹û³öÈËÒâÁÏ£¬ÏµÍ³×Ô¶¯½«Õâ¸öÖµÉèÖÃΪ1¡£»»¾ä»°Ëµ£¬²»Äܽ«¸ÃÖµÉèÖÃΪÓÀ¾Ã¡£


Ïà¹ØÎĵµ£º

ÀûÓÃmysqlµÄ×¢ÉäµãµÃµ½¸ü¶àmysqlµÄÐÅÏ¢

µ±×¢Éämysql¿âµÄÊäÈëµãµÄʱºò,ÎÒÃÇ¿ÉÒÔͨ¹ýversion()/user()/database()/password()µÈÄÚÖú¯ÊýÀ´µÃµ½mysqlµÄÏà¹ØÐÅÏ¢,ÆäʵÎÒÃÇÔÚ×¢ÉäµÄʱºò¿ÉÒÔÀûÓÃmysqlÄÚÖõıäÁ¿À´µÃµ½¸ü¶àµÄmysqlÐÅÏ¢
ÆäÖÐversion()¿ÉÒÔд³É@@versionÀ´°Ñversionµ±×ö±äÁ¿À´¶ÁÈ¡,ÕâÑùÒ»Ñù¿ÉÒԵõ½,ÆäËûµÄÄÚÖÃÊDz»¿ÉÒÔд³É±äÁ¿µÄÐÎʽ.
´ó¼Ò¶¼Ó¦¸ÃÓùýÀû ......

MySQL Partition

×÷ÕߣºÀÏÍõ Èý¹úÑÝÒ忪ƪһÓïµÀÆÆ£ººÏ¾Ã±Ø·Ö£¡MySQLµÄʹÓÃÒàÊÇÈç´Ë£¬Ãæ¶ÔÓ¦ÓÃÖÐÔ½À´Ô½ÅÓ´óµÄÊý¾ÝÁ¿£¬×îʱ÷ֵĽâ¾ö·½°¸ÊÇShard£¬²»¹ýËüµÄ¸´ÔÓÐÔ²¢²»ÊÇÿ¸ö³ÌÐòÔ±¶¼ÄܼÝÔ¦µÄ£¬Èç¹û°Ñ¼Ü¹¹µÄÑݱä±È×÷ÉúÃüµÄ½ø»¯£¬ÄÇôShard¿ÉÒÔ¿´×öÊDz¸È鶯ÎºÜ¶à¼Ü¹¹×îºóÖ®ËùÒÔʧ°Ü£¬¾ÍÊÇÒòΪËüÃDz½×ÓÂõµÃÌ«´ó£¬Ïë´ÓԭʼÉúÃüÖ±½Ó½ø»¯³É²¸Èé¶ ......

mysql 5.0´æ´¢¹ý³Ìѧϰ×ܽá

mysql 5.0´æ´¢¹ý³Ìѧϰ×ܽá
mysql´æ´¢¹ý³ÌµÄ´´½¨£¬É¾³ý£¬µ÷Óü°ÆäËû³£ÓÃÃüÁî
mysql 5.0´æ´¢¹ý³Ìѧϰ×ܽá
Ò».´´½¨´æ´¢¹ý³Ì
1.»ù±¾Óï·¨£º
create procedure sp_name()
begin
………
end
2.²ÎÊý´«µÝ
¶þ.µ÷Óô洢¹ý³Ì
1.»ù±¾Óï·¨£ºcall sp_name()
×¢Ò⣺´æ´¢¹ý³ÌÃû³ÆºóÃæ±ØÐë¼ÓÀ¨ºÅ£¬ÄÄŸô洢¹ ......

mysql Access DeniedÎÞ·¨·ÃÎʵÄÎÊÌâ

mysql Ã÷Ã÷ÒѾ­×°ºÃÁË£¬µ«ÊÇÎÞ·¨·ÃÎÊ¡£Á´½ÓµÄʱºò ×ÜÊÇ˵
Access Denied.
½â¾ö·½·¨£º
ÓÃmysqld --skip-grant-tableÆô¶¯mysql
È»ºóÔÚmysql¿âÖÐÖ´ÐÐÕâ¸ö
INSERT INTO user VALUES ('localhost', 'root', PASSWORD('some_pass'), 'Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y', 'Y', ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ