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The Go programming language
77595e462b
Before this CL, if the system resolver does a very slow DNS lookup for a particular host, all subsequent requests for that host will hang waiting for that lookup to complete. That is more or less expected when Dial is called with no deadline. When Dial has a deadline, though, we can accumulate a large number of goroutines waiting for that slow DNS lookup. Try to avoid this problem by restarting the DNS lookup when it is redone after a deadline is passed. This CL also avoids creating an extra goroutine purely to handle the deadline. No test because we would have to simulate a slow DNS lookup followed by a fast DNS lookup. Fixes #8602. LGTM=bradfitz R=bradfitz, mikioh.mikioh CC=golang-codereviews, r, rsc https://golang.org/cl/154610044 |
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This is the source code repository for the Go programming language.
For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install-source.html
in your web browser.
After installing Go, you can view a nicely formatted
doc/install-source.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install/source.
Unless otherwise noted, the Go source files are distributed
under the BSD-style license found in the LICENSE file.
--
Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set
the environment variable $GOROOT to the full path of the go
directory (the one containing this README). You can omit the
variable if you unpack it into /usr/local/go, or if you rebuild
from sources by running all.bash (see doc/install.html).
You should also add the Go binary directory $GOROOT/bin
to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might
put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See doc/install.html for more details.