tests/test-clone-pull-corruption.t
author Boris Feld <boris.feld@octobus.net>
Thu, 18 Jan 2018 00:50:12 +0100
changeset 35767 5f5fb279fd39
parent 34661 eb586ed5d8ce
child 39489 f1186c292d03
permissions -rw-r--r--
streamclone: also stream caches to the client When stream clone is used over bundle2, relevant cache files are also streamed. This is expected to be a massive performance win for clone since no important cache will have to be recomputed. Some performance numbers: (All times are wall-clock times in seconds, 2 attempts per case.) # Mozilla-Central ## Clone over ssh over lan V1 streaming: 234.3 239.6 V2 streaming: 248.4 243.7 ## Clone over ssh over Internet V1 streaming: 175.5 110.9 V2 streaming: 109.1 111.0 ## Clone over HTTP over lan V1 streaming: 105.3 105.6 V2 streaming: 112.7 111.4 ## Clone over HTTP over internet V1 streaming: 105.6 114.6 V2 streaming: 226.7 225.9 ## Hg tags V1 streaming (no cache): 1.084 1.071 V2 streaming (cache): 0.312 0.325 ## Hg branches V1 streaming (no cache): 14.047 14.148 V2 streaming (with cache): 0.312 0.333 # Pypy ## Clone over ssh over internet V1 streaming: 29.4 30.1 V2 streaming: 31.2 30.1 ## Clone over http over internet V1 streaming: 29.7 29.7 V2 streaming: 75.2 72.9 (since ssh and lan are not affected, there seems to be an issue with how we read/write the http stream on connection with latency, unrelated to the format) ## Hg tags V1 streaming (no cache): 1.752 1.664 V2 streaming (with cache): 0.274 0.260 ## Hg branches V1 streaming (no cache): 4.469 4.728 V2 streaming (with cache): 0.318 0.321 # Private repository: * 500K revision revisions * 11K topological heads * 28K branch heads ## hg tags no cache: 1543.332 with cache: 4.900 ## hg branches no cache: 91.828 with cache: 2.955

Corrupt an hg repo with a pull started during an aborted commit
Create two repos, so that one of them can pull from the other one.

  $ hg init source
  $ cd source
  $ touch foo
  $ hg add foo
  $ hg ci -m 'add foo'
  $ hg clone . ../corrupted
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo >> foo
  $ hg ci -m 'change foo'

Add a hook to wait 5 seconds and then abort the commit

  $ cd ../corrupted
  $ echo "[hooks]" >> .hg/hgrc
  $ echo 'pretxncommit = sh -c "sleep 5; exit 1"' >> .hg/hgrc

start a commit...

  $ touch bar
  $ hg add bar
  $ hg ci -m 'add bar' &

... and start a pull while the commit is still running

  $ sleep 1
  $ hg pull ../source 2>/dev/null
  pulling from ../source
  transaction abort!
  rollback completed
  abort: pretxncommit hook exited with status 1
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 52998019f625
  (run 'hg update' to get a working copy)

see what happened

  $ wait
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 2 changesets, 2 total revisions

  $ cd ..