Commit Graph

24 Commits (c153e6ae2fe4b48af82f6e8e6d934f9f5237dad9)

Author SHA1 Message Date
Will Norris e99c7c3ee5 sockstats: add labels for netlog and sockstatlog packages
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris 62a1e9a44f log/sockstatlog: add delay before writing logs to disk
Split apart polling of sockstats and logging them to disk.  Add a 3
second delay before writing logs to disk to prevent an infinite upload
loop when uploading stats to logcatcher.

Fixes #7719

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris 7c99210e68 log: allow toggling sockstat logs via c2n component logging
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Maisem Ali ca19cf13e9 log/sockstatlog: add resource cleanup test
Updates tailscale/corp#10030

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 4a89642f7f log/sockstatlog: make shutdown close idle connections
Updates tailscale/corp#10030

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Will Norris 57a008a1e1 all: pass log IDs as the proper type rather than strings
This change focuses on the backend log ID, which is the mostly commonly
used in the client.  Tests which don't seem to make use of the log ID
just use the zero value.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris f13b8bf0cf log: use logtail to log and upload sockstat logs
Switch to using logtail for logging sockstat logs. Always log locally
(on supported platforms), but disable automatic uploading.  Change
existing c2n sockstats request to trigger upload to log server and
return log ID.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Mihai Parparita 97b6d3e917 sockstats: remove per-interface stats from Get
They're not needed for the sockstats logger, and they're somewhat
expensive to return (since they involve the creation of a map per
label). We now have a separate GetInterfaces() method that returns
them instead (which we can still use in the PeerAPI debug endpoint).

If changing sockstatlog to sample at 10,000 Hz (instead of the default
of 10Hz), the CPU usage would go up to 59% on a iPhone XS. Removing the
per-interface stats drops it to 20% (a no-op implementation of Get that
returns a fixed value is 16%).

Updates tailscale/corp#9230
Updates #3363

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Will Norris 6ef2105a8e log/sockstatlog: only start once; don't copy ticker
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Maisem Ali 8c4adde083 log/sockstatlog: also shutdown the poll goroutine
Co-authored-by: Will Norris <will@tailscale.com>
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Will Norris 09e0ccf4c2 ipn: add c2n endpoint for sockstats logs
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris a1d9f65354 ipn,log: add logger for sockstat deltas
Signed-off-by: Will Norris <will@tailscale.com>
Co-authored-by: Melanie Warrick <warrick@tailscale.com>
2 years ago
Will Norris 71029cea2d all: update copyright and license headers
This updates all source files to use a new standard header for copyright
and license declaration.  Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.

This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.

Updates #6865

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Brad Fitzpatrick da8def8e13 all: remove old +build tags
The //go:build syntax was introduced in Go 1.17:

https://go.dev/doc/go1.17#build-lines

gofmt has kept the +build and go:build lines in sync since
then, but enough time has passed. Time to remove them.

Done with:

    perl -i -npe 's,^// \+build.*\n,,' $(git grep -l -F '+build')

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Eng Zer Jun f0347e841f refactor: move from io/ioutil to io and os packages
The io/ioutil package has been deprecated as of Go 1.16 [1]. This commit
replaces the existing io/ioutil functions with their new definitions in
io and os packages.

Reference: https://golang.org/doc/go1.16#ioutil
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2 years ago
Mihai Parparita c41837842b wasm: drop pprof dependency
We can use the browser tools to profile, pprof adds 200K to the binary size.

Updates #3157

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Josh Bleecher Snyder 0868329936 all: use any instead of interface{}
My favorite part of generics.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 49a3fcae78 log/filelogger: make filelogger remove redundant date before adding a date
At some point since filelogger was added on Windows, the log hierarchy
above it changed such that a log.Printf writes to filelogger and includes
the log package's own date. But then filelogger adds another.

Rather than debug everything above and risk removing the prefix when
run by tailscaled, instead just remove the log package's prefix
very late right before we go to add the filelogger's own.

Change-Id: I9db518f42c603ef83017f74827270f124fdf5c14
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Denton Gentry 280c84e46a ipn/ipnserver, paths, logpolicy: move Window config files out of %LocalAppData%
C:\WINDOWS\system32\config\systemprofile\AppData\Local\
is frequently cleared for almost any reason: Windows updates,
System Restore, even various System Cleaner utilities.

The server-state.conf file in AppData\Local could be deleted
at any time, which would break login until the node is removed
from the Admin Panel allowing it to create a new key.

Carefully copy any AppData state to ProgramData at startup.
If copying the state fails, continue to use AppData so at
least there will be connectivity. If there is no state,
use ProgramData.

We also migrate the log.conf file. Very old versions of
Tailscale named the EXE tailscale-ipn, so the log conf was
tailscale-ipn.log.conf and more recent versions preserved
this filename and cmdName in logs. In this migration we
always update the filename to
c:\ProgramData\Tailscale\tailscaled.log.conf

Updates https://github.com/tailscale/tailscale/issues/2856

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Brad Fitzpatrick 420838f90e log/filelogger: move our Windows disk file writing+rotation package here
It's still Windows-only for now but it's easy to de-Windows-ify when needed.

Moving it out of corp repo and into tailscale/tailscale so we can use
it in ipnserver.BabysitProc.

Updates #726
4 years ago
Emmanuel T Odeke 688f923db1
log/logheap: properly document LogHeap as performing HTTP upload (#741)
LogHeap no longer logs to os.Stderr and instead uploads
the heap profile by means of an HTTP POST request to the
target URL endpoint.

While here, also ensured that an error from pprof.WriteHeapProfile
isn't ignored and will prevent the HTTP request from being made
if non-nil.

Signed-off-by: Emmanuel T Odeke <emmanuel@orijtech.com>
4 years ago
Brad Fitzpatrick 50b2e5ffe6 log/logheap: appease staticcheck 5 years ago
Brad Fitzpatrick 8edcab04d5 log/logheap: change to POST to a URL instead of logging
It's too big to log.
5 years ago
Brad Fitzpatrick 703d789005 tailcfg: add MapResponse.Debug mechanism to trigger logging heap pprof
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago