Bug #9046: [PATCH] Inter-process locking for log rotation is required

• Status: Closed
• Assignee: -
• Target version: 2.1.0
• ruby -v: ruby 2.1.0dev (2013-10-20 trunk 43373) [x86_64-darwin12.2.1]
• Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN

[sonots (Naotoshi Seo)]

I sent a pull request on https://github.com/ruby/ruby/pull/428 . Please see details on it.

[shyouhei (Shyouhei Urabe)]

• Description updated (diff)

[naruse (Yui NARUSE)]

The point "current implementation is wrong on multi-process environment" sounds reasonable and need to fix.

I commented some implementation points to the pull request.

[naruse (Yui NARUSE)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

This issue was solved with changeset r43511.
Naotoshi, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

• lib/logger.rb: Inter-process locking for log rotation
  Current implementation fails log rotation on multi process env.
  by sonots [e-mail]
  https://github.com/ruby/ruby/pull/428 fix GH-428 [Bug #9046]

[nobu (Nobuyoshi Nakada)]

• Status changed from Closed to Open
• Priority changed from Normal to 5
• % Done changed from 100 to 0

=begin
It broke on Windows.

• don't use fork.
• don't assume that open file can be removed or renamed.

I'll try to fix or revert it.
=end

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

This issue was solved with changeset r43513.
Naotoshi, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

logger.rb: fix r43511 for Windows

• lib/logger.rb (Logger::LogDevice::LogDeviceMutex#lock_shift_log):
  open file can't be removed or renamed on Windows. [ruby-dev:47790]
  [Bug #9046]
• test/logger/test_logger.rb (TestLogDevice#run_children): don't use
  fork.