Proper RAC configuration for handling 2pc global transactions.
处理2pc全局事务的正确RAC配置。
Two-phase commit distributed transactions and RAC configuration
两阶段提交分布式事务和RAC配置
The JDBC driver will obtain new connections from the running RAC nodes.
该JDBC驱动程序将从运行的rac节点获取新的连接。
The WebSphere transaction manager then attempts to get a new connection to RAC.
WebSphere事务管理器将尝试获取到RAC的新连接。
Oracle distributes the connection requests to rac nodes using a random algorithm.
Oracle使用随机算法把连接请求分发给rac节点。
There are several ways you can configure the RAC environment in a WebSphere product.
可以通过多种方法在WebSphere产品中配置RAC环境。
The primary and secondary RAC nodes are specified positionally in the data source URL.
rac主节点和辅助节点将在数据源url中按位置指定。
The Oracle RAC physical configuration contains two nodes: rac-node1 and rac-node2.
OracleRAC物理配置包括两个节点：rac-node1和 rac-node2。
Oracle attempts to distribute the data block's ownership uniformly across all rac nodes.
Oracle尝试跨所有rac节点统一分发该数据块的所有权。
He explained that a large number of Spring developers use Oracle and in turn Oracle rac.
他说相当多的Spring开发者在使用Oracle，相应地也在使用Oraclerac。
In general, such a random distribution algorithm USES all the RAC nodes in an uniform way.
一般情况下，此类随机分发算法以统一方式使用全部rac节点。
Instead, the database administrator will have to manually move the service to the restarted RAC node.
相反，数据库管理员需要手动将该服务移动到重启的rac节点。
Support has also been added for Highly Available (ha) databases, including DB2 HADR and Oracle rac.
还添加了对高可用性(HA)数据库(包括DB 2HADR和Oracle rac)的支持。
His team is also testing to see if Rac might influence the retention of long-term memories in flies.
他的团队也检测Rac是否也影响果蝇的长期记忆力。
The Oracle JDBC driver can be configured for failover or load balancing (or both) in an Oracle rac environment.
在Oraclerac环境中，可以将OracleJDBC驱动程序配置为用于故障转移或负载平衡(或者同时用于两者)。
For each connection request, the Oracle JDBC driver randomly picks up a rac node for obtaining connections.
对于每个连接请求，OracleJDBC驱动程序将随机选择一个rac节点来获取连接。
Even if the Oracle nodes come back up, the Oracle DTP service will not return to the freshly restarted rac node.
即使Oracle节点恢复，OracleDTP服务也不会返回到刚刚重启的rac节点。
This implies that for URL (1) (in Listing 1), the URL of cluster-member1, rac-node1 is the primary RAC node.
这说明，对于URL (1)（在清单 1 中），cluster-member1的 URL (rac-node1)是 RAC主节点。
Here is an outline of the simplest strategy for avoiding the XA-related limitation of Oracle rac mentioned above.
下面简要介绍可以避免上述与xa相关的Oraclerac限制的最简单策略。
In an Oracle rac environment, every Oracle data block is assigned one (and only one) "Master" Oracle rac node.
在Oraclerac环境中，每个Oracle数据块都被赋予一个(且只有一个)“主”Oracle rac节点。
The Global Cache Service (GCS) of that Oracle rac node is responsible for managing access to these sets of data blocks.
该Oraclerac节点的全局缓存服务(GCS)负责管理对这些数据块集的访问。
On a request to obtain connections, the Oracle JDBC driver will provide physical connections from the running rac nodes.
在请求获取连接时，OracleJDBC驱动程序将从运行的rac节点提供物理连接。
All nodes in an Oracle rac environment will be designated as the master of approximately the same number of data blocks.
在Oraclerac环境中，数据块大致相等的所有节点都将被指定为主节点。
If a rac node stops working, Oracle will not failover the DTP service until the Oracle rac cleanup and recovery is complete.
如果rac节点停止工作，Oracle需要在完成Oracle rac清理和恢复之后才能对DTP服务进行故障转移。
A simple way to achieve uniform database load balancing across all the RAC nodes will be to satisfy the following two conditions.
跨所有RAC节点实现统一数据库负载平衡的简单方法是满足以下两个条件。
The Oracle JDBC driver always tries to obtain physical connections from the RAC node that occupies the first position in the list.
OracleJDBC驱动程序始终尝试从占据列表中第一位置的RAC节点获取物理连接。
The RAC ratio reflects Banks' leverage - asset volumes as a proportion of equity - and factors in greater risk-weightings on assets.
RAC比率反映银行的杠杆比率(资产在股本中所占比率)，并在更大程度上计入资产的风险权重。
In case the first RAC node is not available, the JDBC driver will try to obtain connections from the second RAC node, and so on.
如果第一个RAC节点不可用，JDBC驱动程序将尝试从第二个rac节点中获取连接，依此类推。
If all connections in a global 2pc transaction originate from the same Oracle rac node, transaction recovery problems should not arise.
如果一个全局2pc事务中的所有连接都源自同一oraclerac节点，就不会出现事务恢复问题。
If all connections in a global 2pc transaction originate from the same Oracle rac node, transaction recovery problems should not arise.
如果一个全局2pc事务中的所有连接都源自同一oraclerac节点，就不会出现事务恢复问题。
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