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13 changes: 7 additions & 6 deletions 4/4.7_diagnosing.md
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# 问题诊断 FAQ

## 通用问题

1. dtle.gtid_executed 表中是乱码

该表用uuid以binary储存以提升性能。注意查询方式[gtid_executed表](../3/3.3_impact_on_dest.md)

## 协助诊断

遇到问题，首先确认使用了最新稳定版dtle。

将以下内容提供给爱可生工程师，我们将帮助您诊断故障。

### 通用
### 诊断需要收集内容
- job配置
- 复制阶段(全量/增量)
- 日志（请用gzip压缩）
- 堆栈/内存/运行状态信息：执行`kill -SIGTTIN {dtle_pid}`，dtle会自动生成信息文件，存放在`/tmp/dtle_dump_[date-time]`目录下

## 常见问题

### dtle.gtid_executed 表中是乱码

该表用uuid以binary储存以提升性能。注意查询方式[gtid_executed表](../3/3.3_impact_on_dest.md)

### 服务无法启动,无日志输出，使用如下命令查看std日志
- `journalctl _SYSTEMD_UNIT=dtle-consul.service`
- `journalctl _SYSTEMD_UNIT=dtle-nomad.service`
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