October 2020
Intermediate to advanced
261 pages
5h 32m
Chinese
Content preview from Graphite监控
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226
｜
第
9
章
扩展
Graphite
如果你遇到任何错误，它们很可能是由名称过长的对象引起的。
SQLite
的一个缺点是
它不强制执行约束，比如列长。解决的办法是追踪有问题的对象
注
1
，在旧数据库中把它
们截断到合适的长短（在错误回溯中指定），然后用新的数据导入文件再试一次（参见示
例
9-14
）。
示例9-14：长对象名称会中断迁移
Problem installing fixture 'initial_data.json': Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/django/core/management/commands/load-
data.py",
line 174, in handle obj.save(using=using)
File "/usr/lib/python2.7/dist-packages/django/core/serializers/base.py", line 165,
in save models.Model.save_base(self.object, using=using, raw=True)
...
...
File "/usr/lib/python2.7/dist-packages/django/db/models/sql/compiler.py", line
735,
in execute_sql cursor.execute(sql, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.