Spring Batch：在写入期间回滚后不遵守提交间隔

Question

假设我的提交间隔是 1000。

在编写过程中，我在第 990 条记录处收到错误，根据跳过策略可跳过。

因此会发生回滚，写入器将再次从记录 1 开始写入相同的记录。

但是，这一次，它正在提交每条记录。它不遵守提交间隔。这使工作变得缓慢。

为什么会有这样的行为？？我的配置中是否缺少某些内容？

谢谢。

Answer 1

这种行为对于 Spring Batch 隔离坏项目是强制性的，基本上它会回滚块并使用 commit-rate=1 处理/写入每个项目以找到坏项目（在处理器或写入器中）

见spring batch forum comment to similar problem

相关部分

--> 5 items read, processing starts
<processor called:15>
<processor called:16>
<processor called:17> will throw an error on write
<processor called:18>
<processor called:19>
<before write:[15, 16, 17, 18, 19]>
<on write error>
--> error on item 17, but it was in the list, lets find it
--> rollback
<before chunk>
--> spring batch goes through all items of the chunk again to find the bad item
--> basically it runs now with commit-rate="1" (only for this chunk)
<processor called:15>
<after write:[15]>
<after chunk>
<before chunk>
<processor called:16>
<after write:[16]>
<after chunk>
<before chunk>
<processor called:17> called again for the bad item, because it's still unknown to spring batch, that this is the bad one
--> no write, because itemWriter.write() was called with the bad item only and did throw an exception (again)
--> but now spring batch knows the bad item
<before chunk>