In phase 2 (commit phase), WebSphere transaction manager skips the communication with this resource manager, and it will not disk force or log any activities related to this resource manager.

在阶段2(提交阶段)中，WebSphere事务管理程序略过与资源管理程序的通信，并且它并不冒险强制或记录任何与这个资源管理程序相关的活动。

youdao

This is due to how WebSphere MQ accesses the disk: essentially, MQ can only respond to the commit when the relevant part of the disk platter has spun past the drive head.

这归因于WebSphere MQ访问磁盘的方式：实质上，MQ只能在磁盘的相关部分转过磁盘头时才响应commit 。

youdao