upstream/mercurial-mirror Files · mercurial/cacheutil.py

server: add an error feedback mechanism for when the daemon fails to launch...

server: add an error feedback mechanism for when the daemon fails to launch There's a recurring problem on Windows where `hg serve -d` will randomly fail to spawn a detached process. The reason for the failure is completely hidden, and it takes hours to get a single failure on my laptop. All this does is redirect stdout/stderr of the child to a file until the lock file is freed, and then the parent dumps it out if it fails to spawn. I chose to put the output into the lock file because that is always cleaned up. There's no way to report errors after that anyway. On Windows, killdaemons.py is roughly `kill -9`, so this ensures that junk won't pile up. This may end up being a case of EADDRINUSE. At least that's what I saw spit out a few times (among other odd errors and missing output on Windows). But I also managed to get the same thing on Fedora 26 by running test-hgwebdir.t with --loop -j10 for several hours. Running `netstat` immediately after killing that run printed a wall of sockets in the TIME_WAIT state, which were gone a couple seconds later. I couldn't match up ports that failed, because --loop doesn't print out the message about the port that was used. So maybe the fix is to rotate the use of HGPORT[12] in the tests. But, let's collect some more data first.

Boris Feld - - Load All Authors

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        Boris Feld
    
caches: make 'cachetocopy' available in scmutil...

              r35784
            
      # scmutil.py - Mercurial core utility functions

      #

      #  Copyright Matt Mackall <mpm@selenic.com> and other

      #

      # This software may be used and distributed according to the terms of the

      # GNU General Public License version 2 or any later version.

      from __future__ import absolute_import

      from . import repoview

      def cachetocopy(srcrepo):

          """return the list of cache file valuable to copy during a clone"""

          # In local clones we're copying all nodes, not just served

          # ones. Therefore copy all branch caches over.

          cachefiles = ['branch2']

          cachefiles += ['branch2-%s' % f for f in repoview.filtertable]

          cachefiles += ['rbc-names-v1', 'rbc-revs-v1']

          cachefiles += ['tags2']

          cachefiles += ['tags2-%s' % f for f in repoview.filtertable]

          cachefiles += ['hgtagsfnodes1']

          return cachefiles

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Boris Feld caches: make 'cachetocopy' available in scmutil...	r35784	# scmutil.py - Mercurial core utility functions
		#
		# Copyright Matt Mackall <mpm@selenic.com> and other
		#
		# This software may be used and distributed according to the terms of the
		# GNU General Public License version 2 or any later version.
		from __future__ import absolute_import

		from . import repoview

		def cachetocopy(srcrepo):
		"""return the list of cache file valuable to copy during a clone"""
		# In local clones we're copying all nodes, not just served
		# ones. Therefore copy all branch caches over.
		cachefiles = ['branch2']
		cachefiles += ['branch2-%s' % f for f in repoview.filtertable]
		cachefiles += ['rbc-names-v1', 'rbc-revs-v1']
		cachefiles += ['tags2']
		cachefiles += ['tags2-%s' % f for f in repoview.filtertable]
		cachefiles += ['hgtagsfnodes1']
		return cachefiles