标签: mariadb

我很长一段时间以来一直是MySQL的用户.我想开始使用最流行的叉子之间的所有不同的变化.问题是我找不到它们之间的任何好的比较,我最终只会尝试所有这些.我关心的是生产,因为我不会在生产中试验所有这些叉子.

你有没有在生产中运行任何MySQL分支？

有什么好处？有什么缺点？

我已经设置了两个在两个私有IP 192.168.2.51和192.168.2.52上运行的MariaDB 10.0 Galera集群节点.我将尝试使用MariaDB网站提供的MariaDB的JDBC Client(org.mariadb.jdbc.Driver)尝试连接到集群.

它使用常规URL,如:"jdbc:mariadb://192.168.2.51:3306,192.168.2.52:3306/dbname".

但我想要实现的是MySQL JDBC驱动程序的可能性,其URL为:"jdbc:mysql://192.168.2.51,192.168.2.52/dbname？autoReconnect = true&autoReconnectForPools = true&failoverReadonly = false&roundRobinLoadBalance = true"

我比较了MariaDB(https://mariadb.com/kb/en/about-the-mariadb-java-client/)和MySQL(http://dev.mysql.com/doc/refman/5.5)中所述的属性./en/connector-j-reference-configuration-properties.html).对于MariaDB JDBC Client,它似乎没有处理loadbalance或autoReconnect的属性.

所以我的问题是:是否有正确的建议方式通过MariaDB JDBC驱动程序连接(具有负载均衡和故障转移功能)到MariaDB Galera,还是应该回到MySQL的ConnectorJ以及ConnectorJ与MariaDB Galera集群的兼容性如何？

谢谢.

我刚在Mac上通过自制软件安装了MariaDB.在安装结束时,我收到以下错误:

Warning: The post-install step did not complete successfully
You can try again using `brew postinstall mariadb`

如果我跑,brew postinstall mariadb我得到:

==> /usr/local/Cellar/mariadb/5.5.34/bin/mysql_install_db --verbose --user=andrew --basedir=/usr/loca
MariaDB is hosted on launchpad; You can find the latest source and
email lists at http://launchpad.net/maria

Please check all of the above before mailing us!  And remember, if
you do mail us, you should use the /usr/local/Cellar/mariadb/5.5.34/scripts/mysqlbug script!

READ THIS: https://github.com/mxcl/homebrew/wiki/troubleshooting

哪个没用!我跟着的教程告诉我跑unset TEMPDIR,然后mysql_install_db --user=mysql --basedir=$(brew --prefix mariadb); 运行以下结果:

/usr/local/opt/mariadb/bin/my_print_defaults: …

我的模特:

class Course(models.Model):
    language = models.ForeignKey(Language)
    name = models.CharField(max_length=50, unique=True, default='course')
    title = models.CharField(max_length=1024, default='no title')
    foreign_title = models.CharField(max_length=1024, default='no title', blank=True)
    header = models.CharField(max_length=1024, default='', blank=True)
    description = models.TextField(null=True, blank=True)

    def __str__(self):
        return self.title

    def __unicode__(self):
        return u'%s' % self.title

我添加"unique_together":

class Course(models.Model):
    language = models.ForeignKey(Language)
    name = models.CharField(max_length=50, unique=True, default='course')
    title = models.CharField(max_length=1024, default='no title')
    foreign_title = models.CharField(max_length=1024, default='no title', blank=True)
    header = models.CharField(max_length=1024, default='', blank=True)
    description = models.TextField(null=True, blank=True)

    class Meta:
        unique_together = ['language', 'name', 'title']

    def …

以下陈述有什么问题？

ALTER TABLE submittedForecast
  ADD CONSTRAINT FOREIGN KEY (data) REFERENCES blobs (id);

我得到的错误信息是

Can't create table `fcdemo`.`#sql-664_b` (errno: 150 "Foreign key constraint is incorrectly formed")

如何判断我连接的服务器是Percona还是MySQL或MariaDB？这样做有什么标准方法吗？我目前正在使用SHOW VERSION测试服务器版本,但我还需要在我正在处理的应用程序中显示服务器名称.

我在Ubuntu LTS 16.04上安装了MariaDB.然后我跑了

/usr/bin/mysql_secure_installation

并设置root密码.通过访问数据库mysql -u root -p工作正常.但是检查状态会service mysql status打开一个包含此警告的日志文件:

[Warning] 'user' entry 'root@localhost' has both a password and an authentication plugin specified. The password will be ignored.

问题是:

1. 这是担心还是完全正常？
2. 如果这是一个担心,我该如何解决？

我在具有Mariadb（使用readline 5.2的debian-linux-gnu（i686）的mysql Ver 15.1 Distrib 10.0.29-MariaDB，使用readline 5.2）的nodejs（v6.11.0）应用程序上使用Sequelize版本4.3.0。当应用程序启动并调用函数时： Sequelize.sync(); 然后，sequelize连接管理器引发以下错误：

未处理的拒绝SequelizeConnectionError：客户端不支持服务器请求的身份验证协议。考虑升级MariaDB客户端

at Utils.Promise.tap.then.catch.err (/home/dariksoft/cars/node_modules/sequelize/lib/dialects/mysql/connection-manager.js:146:17)
at tryCatcher (/home/dariksoft/cars/node_modules/bluebird/js/release/util.js:16:23)
at Promise._settlePromiseFromHandler (/home/dariksoft/cars/node_modules/bluebird/js/release/promise.js:512:31)
at Promise._settlePromise (/home/dariksoft/cars/node_modules/bluebird/js/release/promise.js:569:18)
at Promise._settlePromise0 (/home/dariksoft/cars/node_modules/bluebird/js/release/promise.js:614:10)
at Promise._settlePromises (/home/dariksoft/cars/node_modules/bluebird/js/release/promise.js:689:18)
at Async._drainQueue (/home/dariksoft/cars/node_modules/bluebird/js/release/async.js:133:16)
at Async._drainQueues (/home/dariksoft/cars/node_modules/bluebird/js/release/async.js:143:10)
at Immediate.Async.drainQueues (/home/dariksoft/cars/node_modules/bluebird/js/release/async.js:17:14)
at runCallback (timers.js:672:20)
at tryOnImmediate (timers.js:645:5)
at processImmediate [as _immediateCallback] (timers.js:617:5)

我更新了mariadb-server和mariadb-client，但是问题已经存在！

有人可以帮助我解决这个问题吗？

如何在WAMP 3.1.0中将数据库从MySQL切换到MariaDB？

我正在寻找它,但我找不到它.

我正在使用MariaDB构建Django应用程序的基于Alpine的图像，但我无法弄清楚应该添加哪个依赖项，以便我的应用程序可以正确连接到数据库。Dockerfile

django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module.
Did you install mysqlclient?

# pull official base image
FROM python:3.7-alpine

# set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# set work directory
WORKDIR /usr/src/cms

# install mysqlclient
RUN apk update \
    && apk add --virtual build-deps gcc python3-dev musl-dev \
    && …