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|
Test correctness of revlog inline -> non-inline transition
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|
----------------------------------------------------------
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We test various file length and naming pattern as this created issue in the
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past.
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Helper extension to intercept renames and kill process
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$ cat > $TESTTMP/intercept_before_rename.py << EOF
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> import os
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> import signal
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> from mercurial import extensions, util
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>
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> def extsetup(ui):
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> def rename(orig, src, dest, *args, **kwargs):
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> path = util.normpath(dest)
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> if path.endswith(b'data/file.i'):
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> os.kill(os.getpid(), signal.SIGKILL)
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> return orig(src, dest, *args, **kwargs)
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> extensions.wrapfunction(util, 'rename', rename)
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> EOF
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$ cat > $TESTTMP/intercept_after_rename.py << EOF
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> import os
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> import signal
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> from mercurial import extensions, util
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>
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> def extsetup(ui):
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> def close(orig, *args, **kwargs):
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> path = util.normpath(args[0]._atomictempfile__name)
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> r = orig(*args, **kwargs)
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> if path.endswith(b'/.hg/store/data/file.i'):
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> os.kill(os.getpid(), signal.SIGKILL)
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> return r
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> extensions.wrapfunction(util.atomictempfile, 'close', close)
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> def extsetup(ui):
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> def rename(orig, src, dest, *args, **kwargs):
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> path = util.normpath(dest)
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> r = orig(src, dest, *args, **kwargs)
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> if path.endswith(b'data/file.i'):
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> os.kill(os.getpid(), signal.SIGKILL)
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> return r
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> extensions.wrapfunction(util, 'rename', rename)
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> EOF
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$ cat > $TESTTMP/killme.py << EOF
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> import os
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> import signal
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>
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> def killme(ui, repo, hooktype, **kwargs):
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> os.kill(os.getpid(), signal.SIGKILL)
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> EOF
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$ cat > $TESTTMP/reader_wait_split.py << EOF
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> import os
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> import signal
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> from mercurial import extensions, revlog, testing
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> def _wait_post_load(orig, self, *args, **kwargs):
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> wait = b'data/file' in self.radix
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> if wait:
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> testing.wait_file(b"$TESTTMP/writer-revlog-split")
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> r = orig(self, *args, **kwargs)
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> if wait:
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> testing.write_file(b"$TESTTMP/reader-index-read")
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> testing.wait_file(b"$TESTTMP/writer-revlog-unsplit")
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> return r
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>
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|
|
> def extsetup(ui):
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> extensions.wrapfunction(revlog.revlog, '_loadindex', _wait_post_load)
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> EOF
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|
setup a repository for tests
|
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----------------------------
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$ cat >> $HGRCPATH << EOF
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> [format]
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> revlog-compression=none
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> EOF
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$ hg init troffset-computation
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$ cd troffset-computation
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$ files="
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> file
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> Directory_With,Special%Char/Complex_File.babar
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> foo/bar/babar_celeste/foo
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> 1234567890/1234567890/1234567890/1234567890/1234567890/1234567890/1234567890/1234567890/1234567890/1234567890/f
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> some_dir/sub_dir/foo_bar
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> some_dir/sub_dir/foo_bar.i.s/tutu
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|
|
> "
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|
|
$ for f in $files; do
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|
|
> mkdir -p `dirname $f`
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|
|
> done
|
|
|
$ for f in $files; do
|
|
|
> printf '%20d' '1' > $f
|
|
|
> done
|
|
|
$ hg commit -Aqma
|
|
|
$ for f in $files; do
|
|
|
> printf '%1024d' '1' > $f
|
|
|
> done
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|
|
$ hg commit -Aqmb
|
|
|
$ for f in $files; do
|
|
|
> printf '%20d' '1' > $f
|
|
|
> done
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|
|
$ hg commit -Aqmc
|
|
|
$ for f in $files; do
|
|
|
> dd if=/dev/zero of=$f bs=1k count=128 > /dev/null 2>&1
|
|
|
> done
|
|
|
$ hg commit -AqmD --traceback
|
|
|
$ for f in $files; do
|
|
|
> dd if=/dev/zero of=$f bs=1k count=132 > /dev/null 2>&1
|
|
|
> done
|
|
|
$ hg commit -AqmD --traceback
|
|
|
|
|
|
Reference size:
|
|
|
$ f -s file
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|
|
file: size=135168
|
|
|
$ f -s .hg/store/data*/file*
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|
|
.hg/store/data/file.d: size=267307
|
|
|
.hg/store/data/file.i: size=320
|
|
|
|
|
|
$ cd ..
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|
|
|
|
|
Test a succesful pull
|
|
|
=====================
|
|
|
|
|
|
Make sure everything goes though as expect if we don't do any crash
|
|
|
|
|
|
$ hg clone --quiet --rev 1 troffset-computation troffset-success
|
|
|
$ cd troffset-success
|
|
|
|
|
|
Reference size:
|
|
|
$ f -s file
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|
|
file: size=1024
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|
|
$ f -s .hg/store/data/file*
|
|
|
.hg/store/data/file.i: size=1174
|
|
|
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
searching for changes
|
|
|
adding changesets
|
|
|
adding manifests
|
|
|
adding file changes
|
|
|
added 3 changesets with 18 changes to 6 files
|
|
|
new changesets c99a94cae9b1:64874a3b0160
|
|
|
(run 'hg update' to get a working copy)
|
|
|
|
|
|
|
|
|
The inline revlog has been replaced
|
|
|
|
|
|
$ f -s .hg/store/data/file*
|
|
|
.hg/store/data/file.d: size=267307
|
|
|
.hg/store/data/file.i: size=320
|
|
|
|
|
|
|
|
|
$ hg verify -q
|
|
|
$ cd ..
|
|
|
|
|
|
|
|
|
Test a hard crash after the file was split but before the transaction was committed
|
|
|
===================================================================================
|
|
|
|
|
|
Test offset computation to correctly factor in the index entries themselves.
|
|
|
Also test that the new data size has the correct size if the transaction is aborted
|
|
|
after the index has been replaced.
|
|
|
|
|
|
Test repo has commits a, b, c, D, where D is large (grows the revlog enough that it
|
|
|
transitions to non-inline storage). The clone initially has changes a, b
|
|
|
and will transition to non-inline storage when adding c, D.
|
|
|
|
|
|
If the transaction adding c, D is rolled back, then we don't undo the revlog split,
|
|
|
but truncate the index and the data to remove both c and D.
|
|
|
|
|
|
|
|
|
$ hg clone --quiet --rev 1 troffset-computation troffset-computation-copy
|
|
|
$ cd troffset-computation-copy
|
|
|
|
|
|
Reference size:
|
|
|
$ f -s file
|
|
|
file: size=1024
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data/file.i: size=1174
|
|
|
|
|
|
$ cat > .hg/hgrc <<EOF
|
|
|
> [hooks]
|
|
|
> pretxnchangegroup = python:$TESTTMP/killme.py:killme
|
|
|
> EOF
|
|
|
#if chg
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
[255]
|
|
|
#else
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
*Killed* (glob)
|
|
|
[137]
|
|
|
#endif
|
|
|
|
|
|
|
|
|
The inline revlog still exist, but a split version exist next to it
|
|
|
|
|
|
$ cat .hg/store/journal | tr '\0' ' ' | grep '\.s'
|
|
|
data/some_dir/sub_dir/foo_bar.i.s/tutu.i 1174
|
|
|
data/some_dir/sub_dir/foo_bar.i.s/tutu.d 0
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data-s/file: size=320
|
|
|
.hg/store/data/file.d: size=267307
|
|
|
.hg/store/data/file.i: size=132395
|
|
|
|
|
|
|
|
|
The first file.i entry should match the "Reference size" above.
|
|
|
The first file.d entry is the temporary record during the split,
|
|
|
|
|
|
A "temporary file" entry exist for the split index.
|
|
|
|
|
|
$ cat .hg/store/journal | tr -s '\000' ' ' | grep data/file
|
|
|
data/file.i 1174
|
|
|
data/file.d 0
|
|
|
$ cat .hg/store/journal.backupfiles | tr -s '\000' ' ' | tr -s '\00' ' '| grep 'data.*/file'
|
|
|
data/file.i data/journal.backup.file.i.bck 0
|
|
|
data-s/file 0
|
|
|
|
|
|
recover is rolling the split back, the fncache is still valid
|
|
|
|
|
|
$ hg recover
|
|
|
rolling back interrupted transaction
|
|
|
(verify step skipped, run `hg verify` to check your repository content)
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data/file.i: size=1174
|
|
|
$ hg tip
|
|
|
changeset: 1:64b04c8dc267
|
|
|
tag: tip
|
|
|
user: test
|
|
|
date: Thu Jan 01 00:00:00 1970 +0000
|
|
|
summary: b
|
|
|
|
|
|
$ hg verify -q
|
|
|
$ hg debugrebuildfncache --only-data
|
|
|
fncache already up to date
|
|
|
$ hg verify -q
|
|
|
$ cd ..
|
|
|
|
|
|
Test a hard crash right before the index is move into place
|
|
|
===========================================================
|
|
|
|
|
|
Now retry the procedure but intercept the rename of the index and check that
|
|
|
the journal does not contain the new index size. This demonstrates the edge case
|
|
|
where the data file is left as garbage.
|
|
|
|
|
|
$ hg clone --quiet --rev 1 troffset-computation troffset-computation-copy2
|
|
|
$ cd troffset-computation-copy2
|
|
|
|
|
|
Reference size:
|
|
|
$ f -s file
|
|
|
file: size=1024
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data/file.i: size=1174
|
|
|
|
|
|
$ cat > .hg/hgrc <<EOF
|
|
|
> [extensions]
|
|
|
> intercept_rename = $TESTTMP/intercept_before_rename.py
|
|
|
> EOF
|
|
|
#if chg
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
searching for changes
|
|
|
adding changesets
|
|
|
adding manifests
|
|
|
adding file changes
|
|
|
[255]
|
|
|
#else
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
searching for changes
|
|
|
adding changesets
|
|
|
adding manifests
|
|
|
adding file changes
|
|
|
*Killed* (glob)
|
|
|
[137]
|
|
|
#endif
|
|
|
|
|
|
The inline revlog still exist, but a split version exist next to it
|
|
|
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data-s/file: size=320
|
|
|
.hg/store/data/file.d: size=267307
|
|
|
.hg/store/data/file.i: size=132395
|
|
|
|
|
|
$ cat .hg/store/journal | tr -s '\000' ' ' | grep 'data.*/file'
|
|
|
data/file.i 1174
|
|
|
data/file.d 0
|
|
|
|
|
|
recover is rolling the split back, the fncache is still valid
|
|
|
|
|
|
$ hg recover
|
|
|
rolling back interrupted transaction
|
|
|
(verify step skipped, run `hg verify` to check your repository content)
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data/file.i: size=1174
|
|
|
$ hg tip
|
|
|
changeset: 1:64b04c8dc267
|
|
|
tag: tip
|
|
|
user: test
|
|
|
date: Thu Jan 01 00:00:00 1970 +0000
|
|
|
summary: b
|
|
|
|
|
|
$ hg verify -q
|
|
|
$ cd ..
|
|
|
|
|
|
Test a hard crash right after the index is move into place
|
|
|
===========================================================
|
|
|
|
|
|
Now retry the procedure but intercept the rename of the index.
|
|
|
|
|
|
$ hg clone --quiet --rev 1 troffset-computation troffset-computation-crash-after-rename
|
|
|
$ cd troffset-computation-crash-after-rename
|
|
|
|
|
|
Reference size:
|
|
|
$ f -s file
|
|
|
file: size=1024
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data/file.i: size=1174
|
|
|
|
|
|
$ cat > .hg/hgrc <<EOF
|
|
|
> [extensions]
|
|
|
> intercept_rename = $TESTTMP/intercept_after_rename.py
|
|
|
> EOF
|
|
|
#if chg
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
searching for changes
|
|
|
adding changesets
|
|
|
adding manifests
|
|
|
adding file changes
|
|
|
[255]
|
|
|
#else
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
searching for changes
|
|
|
adding changesets
|
|
|
adding manifests
|
|
|
adding file changes
|
|
|
*Killed* (glob)
|
|
|
[137]
|
|
|
#endif
|
|
|
|
|
|
The inline revlog was over written on disk
|
|
|
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data/file.d: size=267307
|
|
|
.hg/store/data/file.i: size=320
|
|
|
|
|
|
$ cat .hg/store/journal | tr -s '\000' ' ' | grep 'data.*/file'
|
|
|
data/file.i 1174
|
|
|
data/file.d 0
|
|
|
|
|
|
recover is rolling the split back, the fncache is still valid
|
|
|
|
|
|
$ hg recover
|
|
|
rolling back interrupted transaction
|
|
|
(verify step skipped, run `hg verify` to check your repository content)
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data/file.i: size=1174
|
|
|
$ hg tip
|
|
|
changeset: 1:64b04c8dc267
|
|
|
tag: tip
|
|
|
user: test
|
|
|
date: Thu Jan 01 00:00:00 1970 +0000
|
|
|
summary: b
|
|
|
|
|
|
$ hg verify -q
|
|
|
$ cd ..
|
|
|
|
|
|
Have the transaction rollback itself without any hard crash
|
|
|
===========================================================
|
|
|
|
|
|
|
|
|
Repeat the original test but let hg rollback the transaction.
|
|
|
|
|
|
$ hg clone --quiet --rev 1 troffset-computation troffset-computation-copy-rb
|
|
|
$ cd troffset-computation-copy-rb
|
|
|
$ cat > .hg/hgrc <<EOF
|
|
|
> [hooks]
|
|
|
> pretxnchangegroup = false
|
|
|
> EOF
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
searching for changes
|
|
|
adding changesets
|
|
|
adding manifests
|
|
|
adding file changes
|
|
|
transaction abort!
|
|
|
rollback completed
|
|
|
abort: pretxnchangegroup hook exited with status 1
|
|
|
[40]
|
|
|
|
|
|
The split was rollback
|
|
|
|
|
|
$ f -s .hg/store/data*/file*
|
|
|
.hg/store/data/file.d: size=0
|
|
|
.hg/store/data/file.i: size=1174
|
|
|
|
|
|
|
|
|
$ hg tip
|
|
|
changeset: 1:64b04c8dc267
|
|
|
tag: tip
|
|
|
user: test
|
|
|
date: Thu Jan 01 00:00:00 1970 +0000
|
|
|
summary: b
|
|
|
|
|
|
$ hg verify -q
|
|
|
$ cd ..
|
|
|
|
|
|
Read race
|
|
|
=========
|
|
|
|
|
|
We check that a client that started reading a revlog (its index) after the
|
|
|
split and end reading (the data) after the rollback should be fine
|
|
|
|
|
|
$ hg clone --quiet --rev 1 troffset-computation troffset-computation-race
|
|
|
$ cd troffset-computation-race
|
|
|
$ cat > .hg/hgrc <<EOF
|
|
|
> [hooks]
|
|
|
> pretxnchangegroup=$RUNTESTDIR/testlib/wait-on-file 5 $TESTTMP/reader-index-read $TESTTMP/writer-revlog-split
|
|
|
> pretxnclose = false
|
|
|
> EOF
|
|
|
|
|
|
start a reader
|
|
|
|
|
|
$ hg cat --rev 0 file \
|
|
|
> --config "extensions.wait_read=$TESTTMP/reader_wait_split.py" \
|
|
|
> 2> $TESTTMP/reader.stderr \
|
|
|
> > $TESTTMP/reader.stdout &
|
|
|
|
|
|
Do a failed pull in //
|
|
|
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
searching for changes
|
|
|
adding changesets
|
|
|
adding manifests
|
|
|
adding file changes
|
|
|
transaction abort!
|
|
|
rollback completed
|
|
|
abort: pretxnclose hook exited with status 1
|
|
|
[40]
|
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$ touch $TESTTMP/writer-revlog-unsplit
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|
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$ wait
|
|
|
|
|
|
The reader should be fine
|
|
|
$ cat $TESTTMP/reader.stderr
|
|
|
$ cat $TESTTMP/reader.stdout
|
|
|
1 (no-eol)
|
|
|
|
|
|
$ hg verify -q
|
|
|
|
|
|
$ cd ..
|
|
|
|
|
|
pending hooks
|
|
|
=============
|
|
|
|
|
|
We checks that hooks properly see the inside of the transaction, while other process don't.
|
|
|
|
|
|
$ hg clone --quiet --rev 1 troffset-computation troffset-computation-hooks
|
|
|
$ cd troffset-computation-hooks
|
|
|
$ cat > .hg/hgrc <<EOF
|
|
|
> [hooks]
|
|
|
> pretxnclose.01-echo = hg cat -r 'max(all())' file | f --size
|
|
|
> pretxnclose.02-echo = $RUNTESTDIR/testlib/wait-on-file 5 $TESTTMP/hook-done $TESTTMP/hook-tr-ready
|
|
|
> pretxnclose.03-abort = false
|
|
|
> EOF
|
|
|
|
|
|
$ (
|
|
|
> $RUNTESTDIR/testlib/wait-on-file 5 $TESTTMP/hook-tr-ready;\
|
|
|
> hg cat -r 'max(all())' file | f --size;\
|
|
|
> touch $TESTTMP/hook-done
|
|
|
> ) >stdout 2>stderr &
|
|
|
|
|
|
$ hg pull ../troffset-computation
|
|
|
pulling from ../troffset-computation
|
|
|
searching for changes
|
|
|
adding changesets
|
|
|
adding manifests
|
|
|
adding file changes
|
|
|
size=135168
|
|
|
transaction abort!
|
|
|
rollback completed
|
|
|
abort: pretxnclose.03-abort hook exited with status 1
|
|
|
[40]
|
|
|
|
|
|
$ cat stdout
|
|
|
size=1024
|
|
|
$ cat stderr
|
|
|
|
|
|
$ hg verify -q
|
|
|
|
|
|
|
|
|
$ cd ..
|
|
|
|
