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Differential D6904

upgrade: fix handling of `.d` data file
ClosedPublic

Authored by marmoute on Sep 27 2019, 4:22 PM.

Details

Reviewers
indygreg
Group Reviewers
hg-reviewers
Commits
rHG675a925b556d: upgrade: fix handling of `.d` data file
Summary

The test did not used any .d file. So of course, their handling was broken
(for vfs encoding reason again). We fix the issue and update the test.

Note that some fncache issue remains with .d file. It will be taken care of
in the next changesets.

Diff Detail

Repository
rHG Mercurial
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

marmoute created this revision.Sep 27 2019, 4:22 PM
indygreg accepted this revision.Sep 28 2019, 4:20 PM
This revision is now accepted and ready to land.Sep 28 2019, 4:20 PM
marmoute added a commit: rHG675a925b556d: upgrade: fix handling of `.d` data file.Sep 28 2019, 4:28 PM
Closed by commit rHG675a925b556d: upgrade: fix handling of `.d` data file (authored by marmoute). · Explain Why
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Diff 16673

tests/test-upgrade-repo.t

$ hg --config format.usegeneraldelta=false init upgradegd $ hg --config format.usegeneraldelta=false init upgradegd
$ cd upgradegd $ cd upgradegd
$ touch f0 $ touch f0
$ hg -q commit -A -m initial $ hg -q commit -A -m initial
$ mkdir FooBarDirectory.d $ mkdir FooBarDirectory.d
$ touch FooBarDirectory.d/f1 $ touch FooBarDirectory.d/f1
$ hg -q commit -A -m 'add f1' $ hg -q commit -A -m 'add f1'
$ hg -q up -r 0 $ hg -q up -r 0
$ touch f2 >>> from __future__ import absolute_import, print_function
>>> import random
>>> random.seed(0) # have a reproducible content
>>> with open("f2", "w") as f:
... for i in range(100000):
... f.write("%d\n" % random.randint(1000000000, 9999999999))
$ hg -q commit -A -m 'add f2' $ hg -q commit -A -m 'add f2'
make sure we have a .d file
$ ls -d .hg/store/data/*
.hg/store/data/_foo_bar_directory.d.hg
.hg/store/data/f0.i
.hg/store/data/f2.d
.hg/store/data/f2.i
$ hg debugupgraderepo --run --config format.sparse-revlog=false $ hg debugupgraderepo --run --config format.sparse-revlog=false
upgrade will perform the following actions: upgrade will perform the following actions:
requirements requirements
preserved: dotencode, fncache, revlogv1, store preserved: dotencode, fncache, revlogv1, store
added: generaldelta added: generaldelta
generaldelta generaldelta
repository storage will be able to create optimal deltas; new repository data will be smaller and read times should decrease; interacting with other repositories using this storage model should require less network and CPU resources, making "hg push" and "hg pull" faster repository storage will be able to create optimal deltas; new repository data will be smaller and read times should decrease; interacting with other repositories using this storage model should require less network and CPU resources, making "hg push" and "hg pull" faster
beginning upgrade... beginning upgrade...
repository locked and read-only repository locked and read-only
creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob) creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes) (it is safe to interrupt this process any time before data migration completes)
migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog) migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
migrating 953 bytes in store; 437 bytes tracked data migrating 519 KB in store; 1.05 MB tracked data
migrating 3 filelogs containing 3 revisions (192 bytes in store; 0 bytes tracked data) migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data) migrating 1 manifests containing 3 revisions (384 bytes in store; 238 bytes tracked data)
finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes finished migrating 3 manifest revisions across 1 manifests; change in size: -17 bytes
migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data) migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
finished migrating 3 changelog revisions; change in size: 0 bytes finished migrating 3 changelog revisions; change in size: 0 bytes
finished migrating 9 total revisions; total change in store size: 0 bytes finished migrating 9 total revisions; total change in store size: -17 bytes
copying phaseroots copying phaseroots
data fully migrated to temporary repository data fully migrated to temporary repository
marking source repository as being upgraded; clients will be unable to read from repository marking source repository as being upgraded; clients will be unable to read from repository
starting in-place swap of repository data starting in-place swap of repository data
replaced files will be backed up at $TESTTMP/upgradegd/.hg/upgradebackup.* (glob) replaced files will be backed up at $TESTTMP/upgradegd/.hg/upgradebackup.* (glob)
replacing store... replacing store...
store replacement complete; repository was inconsistent for *s (glob) store replacement complete; repository was inconsistent for *s (glob)
finalizing requirements file and making repository readable again finalizing requirements file and making repository readable again
sparserevlog sparserevlog
Revlog supports delta chain with more unused data between payload. These gaps will be skipped at read time. This allows for better delta chains, making a better compression and faster exchange with server. Revlog supports delta chain with more unused data between payload. These gaps will be skipped at read time. This allows for better delta chains, making a better compression and faster exchange with server.
beginning upgrade... beginning upgrade...
repository locked and read-only repository locked and read-only
creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob) creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes) (it is safe to interrupt this process any time before data migration completes)
migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog) migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
migrating 953 bytes in store; 437 bytes tracked data migrating 519 KB in store; 1.05 MB tracked data
migrating 3 filelogs containing 3 revisions (192 bytes in store; 0 bytes tracked data) migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data) migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data) migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
finished migrating 3 changelog revisions; change in size: 0 bytes finished migrating 3 changelog revisions; change in size: 0 bytes
finished migrating 9 total revisions; total change in store size: 0 bytes finished migrating 9 total revisions; total change in store size: 0 bytes
copying phaseroots copying phaseroots
data fully migrated to temporary repository data fully migrated to temporary repository
re-delta-parent re-delta-parent
deltas within internal storage will choose a new base revision if needed deltas within internal storage will choose a new base revision if needed
beginning upgrade... beginning upgrade...
repository locked and read-only repository locked and read-only
creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob) creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes) (it is safe to interrupt this process any time before data migration completes)
migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog) migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
migrating 953 bytes in store; 437 bytes tracked data migrating 519 KB in store; 1.05 MB tracked data
migrating 3 filelogs containing 3 revisions (192 bytes in store; 0 bytes tracked data) migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
blindly copying data/FooBarDirectory.d/f1.i containing 1 revisions blindly copying data/FooBarDirectory.d/f1.i containing 1 revisions
blindly copying data/f0.i containing 1 revisions blindly copying data/f0.i containing 1 revisions
blindly copying data/f2.i containing 1 revisions blindly copying data/f2.i containing 1 revisions
finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data) migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
cloning 3 revisions from 00manifest.i cloning 3 revisions from 00manifest.i
finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data) migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
blindly copying 00changelog.i containing 3 revisions blindly copying 00changelog.i containing 3 revisions
finished migrating 3 changelog revisions; change in size: 0 bytes finished migrating 3 changelog revisions; change in size: 0 bytes
finished migrating 9 total revisions; total change in store size: 0 bytes finished migrating 9 total revisions; total change in store size: 0 bytes
copying phaseroots copying phaseroots
data fully migrated to temporary repository data fully migrated to temporary repository
marking source repository as being upgraded; clients will be unable to read from repository marking source repository as being upgraded; clients will be unable to read from repository
starting in-place swap of repository data starting in-place swap of repository data
replaced files will be backed up at $TESTTMP/upgradegd/.hg/upgradebackup.* (glob) replaced files will be backed up at $TESTTMP/upgradegd/.hg/upgradebackup.* (glob)
replacing store... replacing store...
store replacement complete; repository was inconsistent for *s (glob) store replacement complete; repository was inconsistent for *s (glob)
finalizing requirements file and making repository readable again finalizing requirements file and making repository readable again
removing old repository content$TESTTMP/upgradegd/.hg/upgradebackup.* (glob) removing old repository content$TESTTMP/upgradegd/.hg/upgradebackup.* (glob)
removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob) removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
Check that the repo still works fine Check that the repo still works fine
$ hg log -G --patch $ hg log -G --stat
@ changeset: 2:b5a3b78015e5 @ changeset: 2:76d4395f5413
| tag: tip | tag: tip
| parent: 0:ba592bf28da2 | parent: 0:ba592bf28da2
| user: test | user: test
| date: Thu Jan 01 00:00:00 1970 +0000 | date: Thu Jan 01 00:00:00 1970 +0000
| summary: add f2 | summary: add f2
| |
| f2 | 100000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
| 1 files changed, 100000 insertions(+), 0 deletions(-)
| |
| o changeset: 1:2029ce2354e2 | o changeset: 1:2029ce2354e2
|/ user: test |/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000 | date: Thu Jan 01 00:00:00 1970 +0000
| summary: add f1 | summary: add f1
| |
| |
o changeset: 0:ba592bf28da2 o changeset: 0:ba592bf28da2
user: test user: test
date: Thu Jan 01 00:00:00 1970 +0000 date: Thu Jan 01 00:00:00 1970 +0000
summary: initial summary: initial
$ hg verify $ hg verify
checking changesets checking changesets
checking manifests checking manifests
crosschecking files in changesets and manifests crosschecking files in changesets and manifests
checking files checking files
warning: revlog 'data/f2.d' not in fncache!
checked 3 changesets with 3 changes to 3 files checked 3 changesets with 3 changes to 3 files
1 warnings encountered!
hint: run "hg debugrebuildfncache" to recover from corrupt fncache
Check we can select negatively Check we can select negatively
$ hg debugupgrade --optimize re-delta-parent --run --no-manifest --no-backup --debug --traceback $ hg debugupgrade --optimize re-delta-parent --run --no-manifest --no-backup --debug --traceback
upgrade will perform the following actions: upgrade will perform the following actions:
requirements requirements
preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
re-delta-parent re-delta-parent
deltas within internal storage will choose a new base revision if needed deltas within internal storage will choose a new base revision if needed
beginning upgrade... beginning upgrade...
repository locked and read-only repository locked and read-only
creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob) creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes) (it is safe to interrupt this process any time before data migration completes)
migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog) migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
migrating 953 bytes in store; 437 bytes tracked data migrating 519 KB in store; 1.05 MB tracked data
migrating 3 filelogs containing 3 revisions (192 bytes in store; 0 bytes tracked data) migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
cloning 1 revisions from data/FooBarDirectory.d/f1.i cloning 1 revisions from data/FooBarDirectory.d/f1.i
cloning 1 revisions from data/f0.i cloning 1 revisions from data/f0.i
cloning 1 revisions from data/f2.i cloning 1 revisions from data/f2.i
finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data) migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
blindly copying 00manifest.i containing 3 revisions blindly copying 00manifest.i containing 3 revisions
finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data) migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
re-delta-parent re-delta-parent
deltas within internal storage will choose a new base revision if needed deltas within internal storage will choose a new base revision if needed
beginning upgrade... beginning upgrade...
repository locked and read-only repository locked and read-only
creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob) creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes) (it is safe to interrupt this process any time before data migration completes)
migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog) migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
migrating 953 bytes in store; 437 bytes tracked data migrating 519 KB in store; 1.05 MB tracked data
migrating 3 filelogs containing 3 revisions (192 bytes in store; 0 bytes tracked data) migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
blindly copying data/FooBarDirectory.d/f1.i containing 1 revisions blindly copying data/FooBarDirectory.d/f1.i containing 1 revisions
blindly copying data/f0.i containing 1 revisions blindly copying data/f0.i containing 1 revisions
blindly copying data/f2.i containing 1 revisions blindly copying data/f2.i containing 1 revisions
finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data) migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
blindly copying 00manifest.i containing 3 revisions blindly copying 00manifest.i containing 3 revisions
finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data) migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
finalizing requirements file and making repository readable again finalizing requirements file and making repository readable again
removing old repository content$TESTTMP/upgradegd/.hg/upgradebackup.* (glob) removing old repository content$TESTTMP/upgradegd/.hg/upgradebackup.* (glob)
removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob) removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
$ hg verify $ hg verify
checking changesets checking changesets
checking manifests checking manifests
crosschecking files in changesets and manifests crosschecking files in changesets and manifests
checking files checking files
warning: revlog 'data/f2.d' not in fncache!
checked 3 changesets with 3 changes to 3 files checked 3 changesets with 3 changes to 3 files
1 warnings encountered!
hint: run "hg debugrebuildfncache" to recover from corrupt fncache
Check that we can select filelog only Check that we can select filelog only
$ hg debugupgrade --optimize re-delta-parent --run --no-changelog --no-manifest --no-backup --debug --traceback $ hg debugupgrade --optimize re-delta-parent --run --no-changelog --no-manifest --no-backup --debug --traceback
upgrade will perform the following actions: upgrade will perform the following actions:
requirements requirements
preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
re-delta-parent re-delta-parent
deltas within internal storage will choose a new base revision if needed deltas within internal storage will choose a new base revision if needed
beginning upgrade... beginning upgrade...
repository locked and read-only repository locked and read-only
creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob) creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes) (it is safe to interrupt this process any time before data migration completes)
migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog) migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
migrating 953 bytes in store; 437 bytes tracked data migrating 519 KB in store; 1.05 MB tracked data
migrating 3 filelogs containing 3 revisions (192 bytes in store; 0 bytes tracked data) migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
cloning 1 revisions from data/FooBarDirectory.d/f1.i cloning 1 revisions from data/FooBarDirectory.d/f1.i
cloning 1 revisions from data/f0.i cloning 1 revisions from data/f0.i
cloning 1 revisions from data/f2.i cloning 1 revisions from data/f2.i
finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data) migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
blindly copying 00manifest.i containing 3 revisions blindly copying 00manifest.i containing 3 revisions
finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data) migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
re-delta-parent re-delta-parent
deltas within internal storage will choose a new base revision if needed deltas within internal storage will choose a new base revision if needed
beginning upgrade... beginning upgrade...
repository locked and read-only repository locked and read-only
creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob) creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes) (it is safe to interrupt this process any time before data migration completes)
migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog) migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
migrating 953 bytes in store; 437 bytes tracked data migrating 519 KB in store; 1.05 MB tracked data
migrating 3 filelogs containing 3 revisions (192 bytes in store; 0 bytes tracked data) migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
cloning 1 revisions from data/FooBarDirectory.d/f1.i cloning 1 revisions from data/FooBarDirectory.d/f1.i
cloning 1 revisions from data/f0.i cloning 1 revisions from data/f0.i
cloning 1 revisions from data/f2.i cloning 1 revisions from data/f2.i
finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data) migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
cloning 3 revisions from 00manifest.i cloning 3 revisions from 00manifest.i
finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data) migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
re-delta-parent re-delta-parent
deltas within internal storage will choose a new base revision if needed deltas within internal storage will choose a new base revision if needed
beginning upgrade... beginning upgrade...
repository locked and read-only repository locked and read-only
creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob) creating temporary repository to stage migrated data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes) (it is safe to interrupt this process any time before data migration completes)
migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog) migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
migrating 953 bytes in store; 437 bytes tracked data migrating 519 KB in store; 1.05 MB tracked data
migrating 3 filelogs containing 3 revisions (192 bytes in store; 0 bytes tracked data) migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
cloning 1 revisions from data/FooBarDirectory.d/f1.i cloning 1 revisions from data/FooBarDirectory.d/f1.i
cloning 1 revisions from data/f0.i cloning 1 revisions from data/f0.i
cloning 1 revisions from data/f2.i cloning 1 revisions from data/f2.i
finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data) migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
cloning 3 revisions from 00manifest.i cloning 3 revisions from 00manifest.i
finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data) migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)