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mysql server
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I‘m trying to set ‘thread_concurrency to 8 under Linux MySQL server. But when I try to restart the mysql server, I get the following error:
[ERROR] /usr/local/libexec/mysqld: unknown variable ‘thread_concurrency=8’
How do I fix this problem?
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When I run the following command at mysql> I get an error which read as follows:
mysql> use dbname;
mysql> show tables;
ERROR 1018 (HY000): Can’t read dir of ‘./dbname/’ (errno: 13)
How do I fix this problem under Debian Linux?
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I lost mysql admin (root user) password. How do I reset a lost MySQL admin (root) password under UNIX or Linux or BSD operating systems?
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Q. I get a large amount of bin files in the MySQL data directory called “server-bin.n” or mysql-bin.00000n, where n is a number that increments. What is MySQL Binary Log? How do I stop these files being created?
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