提升失败任务日志的扫描效率

[ddavidzhang]

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

The description of the PR:
提升失败任务日志的扫描效率。

Other information:
在实际业务重任务量很大，log 表只存 30 天也有几百万条记录，定时扫描导致 mysql cpu 一直占满

[xuxueli]

考虑到长耗时任务，失败任务id不是绝对递增的，不可以简单通过最小id过滤。 可以通过时间过滤，一会扫描近期增量数据，比如3天内。

[Copilot]

Pull Request Overview

This PR introduces cursor-based pagination to improve the scanning efficiency of failed task logs by adding a lastJobLogId parameter to avoid repeatedly scanning the entire log table (which can contain millions of records with 30-day retention).

Key Changes:

• Added lastJobLogId parameter to filter queries, scanning only logs with id > lastJobLogId
• Modified the monitoring thread to track the last processed log ID across iterations
• Whitespace cleanup in XML mapper file

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
xxl-job-admin/src/main/resources/mybatis-mapper/XxlJobLogMapper.xml	Added conditional id > lastJobLogId filter to findFailJobLogIds query for cursor-based pagination; minor whitespace cleanup
xxl-job-admin/src/main/java/com/xxl/job/admin/dao/XxlJobLogDao.java	Updated findFailJobLogIds method signature to accept lastJobLogId parameter
xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobFailMonitorHelper.java	Introduced lastFailLogId tracking variable and passed it to the DAO query for incremental scanning

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[Copilot]

[nitpick] Missing space after comma in the method call. Should be findFailJobLogIds(lastFailLogId, 1000) instead of findFailJobLogIds(lastFailLogId,1000) for consistency with Java code style conventions.

Suggested change

	List<Long> failLogIds = XxlJobAdminConfig.getAdminConfig().getXxlJobLogDao().findFailJobLogIds(lastFailLogId,1000);
	List<Long> failLogIds = XxlJobAdminConfig.getAdminConfig().getXxlJobLogDao().findFailJobLogIds(lastFailLogId, 1000);