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Git submodule head 'reference is not a tree' error
...ry does contain a commit you want to use (unlike the commit that is referenced from current state of the super-project), there are two ways to do it.
The first requires you to already know the commit from the submodule that you want to use. It works from the “inside, out” by directly adjusting ...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...
You should use 400 for business rules. Don't return 2xx if the order was not accepted. HTTP is an application protocol, never forget that. If you return 2xx the client can assume the order was accepted, regardless of any information you send in the body.
From RESTful Web Servi...
Requests — how to tell if you're getting a 404
...us_code
404
If you want requests to raise an exception for error codes (4xx or 5xx), call r.raise_for_status():
>>> r = requests.get('http://httpbin.org/status/404')
>>> r.raise_for_status()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
F...
浅谈HTML5 & CSS3的新交互特性 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...性本文标题的这副图片，是用Phosotshop制作的。但是，在搜索引擎中你却无法搜索到它，搜索引擎还没有强大到能够识别图片里面的文字。并且由于...本文标题的这副图片，是用Phosotshop制作的。但是，在搜索引擎中你却无法搜索...
Android Studio - How to increase Allocated Heap Size
...p/Contents/bin/studio.vmoptions
Change the content to
-Xms128m
-Xmx4096m
-XX:MaxPermSize=1024m
-XX:ReservedCodeCacheSize=200m
-XX:+UseCompressedOops
Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool. Your JVM w...
周鸿祎创业以来的“六大战役” 酷派会是最后一战 - 资讯 - 清泛网 - 专注C/...
...干损人利己的事。总处在风口浪尖，比如战百度，结果360搜索就自然更能生长。战小米，结果360特供机就自然获得关注。打流氓软件，结果360安全就相应崛起。虽然不明真相，但是各种撕逼之战让众多媒体人“津津乐道”。
零...
Error java.lang.OutOfMemoryError: GC overhead limit exceeded
...oo small. If necessary, this feature can be disabled by adding the option -XX:-UseGCOverheadLimit to the command line.
EDIT: looks like someone can type faster than me :)
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How to configure 'git log' to show 'commit date'
...r example:
$ git log --graph --pretty=format:'%C(auto)%h%d (%cr) %cn <%ce> %s'
You can define an alias in git to make this easier to use. I have the following in my .gitconfig:
[alias]
# see `git help log` for detailed help.
# %h: abbreviated commit hash
# %d: ref names, like the --dec...
When to use os.name, sys.platform, or platform.system?
...
Dived a bit into the source code.
The output of sys.platform and os.name are determined at compile time. platform.system() determines the system type at run time.
sys.platform is specified as a compiler define during the build configuration.
os.na...
Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...grep
编写脚本，下载某个时间范围内的全部日志到本地再搜索
tail+grep或者把日志下载下来再搜索，可以应付不多的主机和应用不多的部署场景。但对于多机多应用部署就不合适了。这里的多机多应用指的是同一种应用被部署...