upgrade: speed up when we have only nodemap to downgrade
Similar to what we do on upgrade, if we have only persistent-nodemap to
downgrade we will just delete the nodemap files and update repository
requirements instead of processing all the revlogs.
After downgrade, we are left with unrequired docket and transaction files which
seems fine but can work on deleting them if someone feels we should.
Differential Revision: https://phab.mercurial-scm.org/D9992
===================================
Test the persistent on-disk nodemap
===================================
$ cat << EOF >> $HGRCPATH
> [format]
> use-persistent-nodemap=yes
> [devel]
> persistent-nodemap=yes
> EOF
$ hg init test-repo --config storage.revlog.persistent-nodemap.slow-path=allow
$ cd test-repo
Check handling of the default slow-path value
#if no-pure no-rust
$ hg id
abort: accessing `persistent-nodemap` repository without associated fast implementation.
(check `hg help config.format.use-persistent-nodemap` for details)
[255]
Unlock further check (we are here to test the feature)
$ cat << EOF >> $HGRCPATH
> [storage]
> # to avoid spamming the test
> revlog.persistent-nodemap.slow-path=allow
> EOF
#endif
#if rust
Regression test for a previous bug in Rust/C FFI for the `Revlog_CAPI` capsule:
in places where `mercurial/cext/revlog.c` function signatures use `Py_ssize_t`
(64 bits on Linux x86_64), corresponding declarations in `rust/hg-cpython/src/cindex.rs`
incorrectly used `libc::c_int` (32 bits).
As a result, -1 passed from Rust for the null revision became 4294967295 in C.
$ hg log -r 00000000
changeset: -1:000000000000
tag: tip
user:
date: Thu Jan 01 00:00:00 1970 +0000
#endif
$ hg debugformat
format-variant repo
fncache: yes
dotencode: yes
generaldelta: yes
share-safe: no
sparserevlog: yes
sidedata: no
persistent-nodemap: yes
copies-sdc: no
plain-cl-delta: yes
compression: zlib
compression-level: default
$ hg debugbuilddag .+5000 --new-file
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5000
tip-node: 6b02b8c7b96654c25e86ba69eda198d7e6ad8b3c
data-length: 121088
data-unused: 0
data-unused: 0.000%
$ f --size .hg/store/00changelog.n
.hg/store/00changelog.n: size=70
Simple lookup works
$ ANYNODE=`hg log --template '{node|short}\n' --rev tip`
$ hg log -r "$ANYNODE" --template '{rev}\n'
5000
#if rust
$ f --sha256 .hg/store/00changelog-*.nd
.hg/store/00changelog-????????????????.nd: sha256=2e029d3200bd1a986b32784fc2ef1a3bd60dc331f025718bcf5ff44d93f026fd (glob)
$ f --sha256 .hg/store/00manifest-*.nd
.hg/store/00manifest-????????????????.nd: sha256=97117b1c064ea2f86664a124589e47db0e254e8d34739b5c5cc5bf31c9da2b51 (glob)
$ hg debugnodemap --dump-new | f --sha256 --size
size=121088, sha256=2e029d3200bd1a986b32784fc2ef1a3bd60dc331f025718bcf5ff44d93f026fd
$ hg debugnodemap --dump-disk | f --sha256 --bytes=256 --hexdump --size
size=121088, sha256=2e029d3200bd1a986b32784fc2ef1a3bd60dc331f025718bcf5ff44d93f026fd
0000: 00 00 00 91 00 00 00 20 00 00 00 bb 00 00 00 e7 |....... ........|
0010: 00 00 00 66 00 00 00 a1 00 00 01 13 00 00 01 22 |...f..........."|
0020: 00 00 00 23 00 00 00 fc 00 00 00 ba 00 00 00 5e |...#...........^|
0030: 00 00 00 df 00 00 01 4e 00 00 01 65 00 00 00 ab |.......N...e....|
0040: 00 00 00 a9 00 00 00 95 00 00 00 73 00 00 00 38 |...........s...8|
0050: 00 00 00 cc 00 00 00 92 00 00 00 90 00 00 00 69 |...............i|
0060: 00 00 00 ec 00 00 00 8d 00 00 01 4f 00 00 00 12 |...........O....|
0070: 00 00 02 0c 00 00 00 77 00 00 00 9c 00 00 00 8f |.......w........|
0080: 00 00 00 d5 00 00 00 6b 00 00 00 48 00 00 00 b3 |.......k...H....|
0090: 00 00 00 e5 00 00 00 b5 00 00 00 8e 00 00 00 ad |................|
00a0: 00 00 00 7b 00 00 00 7c 00 00 00 0b 00 00 00 2b |...{...|.......+|
00b0: 00 00 00 c6 00 00 00 1e 00 00 01 08 00 00 00 11 |................|
00c0: 00 00 01 30 00 00 00 26 00 00 01 9c 00 00 00 35 |...0...&.......5|
00d0: 00 00 00 b8 00 00 01 31 00 00 00 2c 00 00 00 55 |.......1...,...U|
00e0: 00 00 00 8a 00 00 00 9a 00 00 00 0c 00 00 01 1e |................|
00f0: 00 00 00 a4 00 00 00 83 00 00 00 c9 00 00 00 8c |................|
#else
$ f --sha256 .hg/store/00changelog-*.nd
.hg/store/00changelog-????????????????.nd: sha256=f544f5462ff46097432caf6d764091f6d8c46d6121be315ead8576d548c9dd79 (glob)
$ hg debugnodemap --dump-new | f --sha256 --size
size=121088, sha256=f544f5462ff46097432caf6d764091f6d8c46d6121be315ead8576d548c9dd79
$ hg debugnodemap --dump-disk | f --sha256 --bytes=256 --hexdump --size
size=121088, sha256=f544f5462ff46097432caf6d764091f6d8c46d6121be315ead8576d548c9dd79
0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0020: ff ff ff ff ff ff f5 06 ff ff ff ff ff ff f3 e7 |................|
0030: ff ff ef ca ff ff ff ff ff ff ff ff ff ff ff ff |................|
0040: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0050: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ed 08 |................|
0060: ff ff ed 66 ff ff ff ff ff ff ff ff ff ff ff ff |...f............|
0070: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0090: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f6 ed |................|
00a0: ff ff ff ff ff ff fe 61 ff ff ff ff ff ff ff ff |.......a........|
00b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
00c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
00d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
00e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f1 02 |................|
00f0: ff ff ff ff ff ff ed 1b ff ff ff ff ff ff ff ff |................|
#endif
$ hg debugnodemap --check
revision in index: 5001
revision in nodemap: 5001
add a new commit
$ hg up
5001 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo foo > foo
$ hg add foo
Check slow-path config value handling
-------------------------------------
#if no-pure no-rust
$ hg id --config "storage.revlog.persistent-nodemap.slow-path=invalid-value"
unknown value for config "storage.revlog.persistent-nodemap.slow-path": "invalid-value"
falling back to default value: abort
abort: accessing `persistent-nodemap` repository without associated fast implementation.
(check `hg help config.format.use-persistent-nodemap` for details)
[255]
$ hg log -r . --config "storage.revlog.persistent-nodemap.slow-path=warn"
warning: accessing `persistent-nodemap` repository without associated fast implementation.
(check `hg help config.format.use-persistent-nodemap` for details)
changeset: 5000:6b02b8c7b966
tag: tip
user: debugbuilddag
date: Thu Jan 01 01:23:20 1970 +0000
summary: r5000
$ hg ci -m 'foo' --config "storage.revlog.persistent-nodemap.slow-path=abort"
abort: accessing `persistent-nodemap` repository without associated fast implementation.
(check `hg help config.format.use-persistent-nodemap` for details)
[255]
#else
$ hg id --config "storage.revlog.persistent-nodemap.slow-path=invalid-value"
unknown value for config "storage.revlog.persistent-nodemap.slow-path": "invalid-value"
falling back to default value: abort
6b02b8c7b966+ tip
#endif
$ hg ci -m 'foo'
#if no-pure no-rust
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5001
tip-node: 16395c3cf7e231394735e6b1717823ada303fb0c
data-length: 121088
data-unused: 0
data-unused: 0.000%
#else
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5001
tip-node: 16395c3cf7e231394735e6b1717823ada303fb0c
data-length: 121344
data-unused: 256
data-unused: 0.211%
#endif
$ f --size .hg/store/00changelog.n
.hg/store/00changelog.n: size=70
(The pure code use the debug code that perform incremental update, the C code reencode from scratch)
#if pure
$ f --sha256 .hg/store/00changelog-*.nd --size
.hg/store/00changelog-????????????????.nd: size=121344, sha256=cce54c5da5bde3ad72a4938673ed4064c86231b9c64376b082b163fdb20f8f66 (glob)
#endif
#if rust
$ f --sha256 .hg/store/00changelog-*.nd --size
.hg/store/00changelog-????????????????.nd: size=121344, sha256=952b042fcf614ceb37b542b1b723e04f18f83efe99bee4e0f5ccd232ef470e58 (glob)
#endif
#if no-pure no-rust
$ f --sha256 .hg/store/00changelog-*.nd --size
.hg/store/00changelog-????????????????.nd: size=121088, sha256=df7c06a035b96cb28c7287d349d603baef43240be7736fe34eea419a49702e17 (glob)
#endif
$ hg debugnodemap --check
revision in index: 5002
revision in nodemap: 5002
Test code path without mmap
---------------------------
$ echo bar > bar
$ hg add bar
$ hg ci -m 'bar' --config storage.revlog.persistent-nodemap.mmap=no
$ hg debugnodemap --check --config storage.revlog.persistent-nodemap.mmap=yes
revision in index: 5003
revision in nodemap: 5003
$ hg debugnodemap --check --config storage.revlog.persistent-nodemap.mmap=no
revision in index: 5003
revision in nodemap: 5003
#if pure
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5002
tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
data-length: 121600
data-unused: 512
data-unused: 0.421%
$ f --sha256 .hg/store/00changelog-*.nd --size
.hg/store/00changelog-????????????????.nd: size=121600, sha256=def52503d049ccb823974af313a98a935319ba61f40f3aa06a8be4d35c215054 (glob)
#endif
#if rust
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5002
tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
data-length: 121600
data-unused: 512
data-unused: 0.421%
$ f --sha256 .hg/store/00changelog-*.nd --size
.hg/store/00changelog-????????????????.nd: size=121600, sha256=dacf5b5f1d4585fee7527d0e67cad5b1ba0930e6a0928f650f779aefb04ce3fb (glob)
#endif
#if no-pure no-rust
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5002
tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
data-length: 121088
data-unused: 0
data-unused: 0.000%
$ f --sha256 .hg/store/00changelog-*.nd --size
.hg/store/00changelog-????????????????.nd: size=121088, sha256=59fcede3e3cc587755916ceed29e3c33748cd1aa7d2f91828ac83e7979d935e8 (glob)
#endif
Test force warming the cache
$ rm .hg/store/00changelog.n
$ hg debugnodemap --metadata
$ hg debugupdatecache
#if pure
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5002
tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
data-length: 121088
data-unused: 0
data-unused: 0.000%
#else
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5002
tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
data-length: 121088
data-unused: 0
data-unused: 0.000%
#endif
Check out of sync nodemap
=========================
First copy old data on the side.
$ mkdir ../tmp-copies
$ cp .hg/store/00changelog-????????????????.nd .hg/store/00changelog.n ../tmp-copies
Nodemap lagging behind
----------------------
make a new commit
$ echo bar2 > bar
$ hg ci -m 'bar2'
$ NODE=`hg log -r tip -T '{node}\n'`
$ hg log -r "$NODE" -T '{rev}\n'
5003
If the nodemap is lagging behind, it can catch up fine
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5003
tip-node: c9329770f979ade2d16912267c38ba5f82fd37b3
data-length: 121344 (pure !)
data-length: 121344 (rust !)
data-length: 121152 (no-rust no-pure !)
data-unused: 192 (pure !)
data-unused: 192 (rust !)
data-unused: 0 (no-rust no-pure !)
data-unused: 0.158% (pure !)
data-unused: 0.158% (rust !)
data-unused: 0.000% (no-rust no-pure !)
$ cp -f ../tmp-copies/* .hg/store/
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5002
tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
data-length: 121088
data-unused: 0
data-unused: 0.000%
$ hg log -r "$NODE" -T '{rev}\n'
5003
changelog altered
-----------------
If the nodemap is not gated behind a requirements, an unaware client can alter
the repository so the revlog used to generate the nodemap is not longer
compatible with the persistent nodemap. We need to detect that.
$ hg up "$NODE~5"
0 files updated, 0 files merged, 4 files removed, 0 files unresolved
$ echo bar > babar
$ hg add babar
$ hg ci -m 'babar'
created new head
$ OTHERNODE=`hg log -r tip -T '{node}\n'`
$ hg log -r "$OTHERNODE" -T '{rev}\n'
5004
$ hg --config extensions.strip= strip --rev "$NODE~1" --no-backup
the nodemap should detect the changelog have been tampered with and recover.
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5002
tip-node: b355ef8adce0949b8bdf6afc72ca853740d65944
data-length: 121536 (pure !)
data-length: 121088 (rust !)
data-length: 121088 (no-pure no-rust !)
data-unused: 448 (pure !)
data-unused: 0 (rust !)
data-unused: 0 (no-pure no-rust !)
data-unused: 0.000% (rust !)
data-unused: 0.369% (pure !)
data-unused: 0.000% (no-pure no-rust !)
$ cp -f ../tmp-copies/* .hg/store/
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5002
tip-node: 880b18d239dfa9f632413a2071bfdbcc4806a4fd
data-length: 121088
data-unused: 0
data-unused: 0.000%
$ hg log -r "$OTHERNODE" -T '{rev}\n'
5002
missing data file
-----------------
$ UUID=`hg debugnodemap --metadata| grep 'uid:' | \
> sed 's/uid: //'`
$ FILE=.hg/store/00changelog-"${UUID}".nd
$ mv $FILE ../tmp-data-file
$ cp .hg/store/00changelog.n ../tmp-docket
mercurial don't crash
$ hg log -r .
changeset: 5002:b355ef8adce0
tag: tip
parent: 4998:d918ad6d18d3
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: babar
$ hg debugnodemap --metadata
$ hg debugupdatecache
$ hg debugnodemap --metadata
uid: * (glob)
tip-rev: 5002
tip-node: b355ef8adce0949b8bdf6afc72ca853740d65944
data-length: 121088
data-unused: 0
data-unused: 0.000%
$ mv ../tmp-data-file $FILE
$ mv ../tmp-docket .hg/store/00changelog.n
Check transaction related property
==================================
An up to date nodemap should be available to shell hooks,
$ echo dsljfl > a
$ hg add a
$ hg ci -m a
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5003
tip-node: a52c5079765b5865d97b993b303a18740113bbb2
data-length: 121088
data-unused: 0
data-unused: 0.000%
$ echo babar2 > babar
$ hg ci -m 'babar2' --config "hooks.pretxnclose.nodemap-test=hg debugnodemap --metadata"
uid: ???????????????? (glob)
tip-rev: 5004
tip-node: 2f5fb1c06a16834c5679d672e90da7c5f3b1a984
data-length: 121280 (pure !)
data-length: 121280 (rust !)
data-length: 121088 (no-pure no-rust !)
data-unused: 192 (pure !)
data-unused: 192 (rust !)
data-unused: 0 (no-pure no-rust !)
data-unused: 0.158% (pure !)
data-unused: 0.158% (rust !)
data-unused: 0.000% (no-pure no-rust !)
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5004
tip-node: 2f5fb1c06a16834c5679d672e90da7c5f3b1a984
data-length: 121280 (pure !)
data-length: 121280 (rust !)
data-length: 121088 (no-pure no-rust !)
data-unused: 192 (pure !)
data-unused: 192 (rust !)
data-unused: 0 (no-pure no-rust !)
data-unused: 0.158% (pure !)
data-unused: 0.158% (rust !)
data-unused: 0.000% (no-pure no-rust !)
Another process does not see the pending nodemap content during run.
$ PATH=$RUNTESTDIR/testlib/:$PATH
$ echo qpoasp > a
$ hg ci -m a2 \
> --config "hooks.pretxnclose=wait-on-file 20 sync-repo-read sync-txn-pending" \
> --config "hooks.txnclose=touch sync-txn-close" > output.txt 2>&1 &
(read the repository while the commit transaction is pending)
$ wait-on-file 20 sync-txn-pending && \
> hg debugnodemap --metadata && \
> wait-on-file 20 sync-txn-close sync-repo-read
uid: ???????????????? (glob)
tip-rev: 5004
tip-node: 2f5fb1c06a16834c5679d672e90da7c5f3b1a984
data-length: 121280 (pure !)
data-length: 121280 (rust !)
data-length: 121088 (no-pure no-rust !)
data-unused: 192 (pure !)
data-unused: 192 (rust !)
data-unused: 0 (no-pure no-rust !)
data-unused: 0.158% (pure !)
data-unused: 0.158% (rust !)
data-unused: 0.000% (no-pure no-rust !)
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5005
tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
data-length: 121536 (pure !)
data-length: 121536 (rust !)
data-length: 121088 (no-pure no-rust !)
data-unused: 448 (pure !)
data-unused: 448 (rust !)
data-unused: 0 (no-pure no-rust !)
data-unused: 0.369% (pure !)
data-unused: 0.369% (rust !)
data-unused: 0.000% (no-pure no-rust !)
$ cat output.txt
Check that a failing transaction will properly revert the data
$ echo plakfe > a
$ f --size --sha256 .hg/store/00changelog-*.nd
.hg/store/00changelog-????????????????.nd: size=121536, sha256=bb414468d225cf52d69132e1237afba34d4346ee2eb81b505027e6197b107f03 (glob) (pure !)
.hg/store/00changelog-????????????????.nd: size=121536, sha256=909ac727bc4d1c0fda5f7bff3c620c98bd4a2967c143405a1503439e33b377da (glob) (rust !)
.hg/store/00changelog-????????????????.nd: size=121088, sha256=342d36d30d86dde67d3cb6c002606c4a75bcad665595d941493845066d9c8ee0 (glob) (no-pure no-rust !)
$ hg ci -m a3 --config "extensions.abort=$RUNTESTDIR/testlib/crash_transaction_late.py"
transaction abort!
rollback completed
abort: This is a late abort
[255]
$ hg debugnodemap --metadata
uid: ???????????????? (glob)
tip-rev: 5005
tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
data-length: 121536 (pure !)
data-length: 121536 (rust !)
data-length: 121088 (no-pure no-rust !)
data-unused: 448 (pure !)
data-unused: 448 (rust !)
data-unused: 0 (no-pure no-rust !)
data-unused: 0.369% (pure !)
data-unused: 0.369% (rust !)
data-unused: 0.000% (no-pure no-rust !)
$ f --size --sha256 .hg/store/00changelog-*.nd
.hg/store/00changelog-????????????????.nd: size=121536, sha256=bb414468d225cf52d69132e1237afba34d4346ee2eb81b505027e6197b107f03 (glob) (pure !)
.hg/store/00changelog-????????????????.nd: size=121536, sha256=909ac727bc4d1c0fda5f7bff3c620c98bd4a2967c143405a1503439e33b377da (glob) (rust !)
.hg/store/00changelog-????????????????.nd: size=121088, sha256=342d36d30d86dde67d3cb6c002606c4a75bcad665595d941493845066d9c8ee0 (glob) (no-pure no-rust !)
Check that removing content does not confuse the nodemap
--------------------------------------------------------
removing data with rollback
$ echo aso > a
$ hg ci -m a4
$ hg rollback
repository tip rolled back to revision 5005 (undo commit)
working directory now based on revision 5005
$ hg id -r .
90d5d3ba2fc4 tip
roming data with strip
$ echo aso > a
$ hg ci -m a4
$ hg --config extensions.strip= strip -r . --no-backup
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -r . --traceback
90d5d3ba2fc4 tip
Test upgrade / downgrade
========================
downgrading
$ cat << EOF >> .hg/hgrc
> [format]
> use-persistent-nodemap=no
> EOF
$ hg debugformat -v
format-variant repo config default
fncache: yes yes yes
dotencode: yes yes yes
generaldelta: yes yes yes
share-safe: no no no
sparserevlog: yes yes yes
sidedata: no no no
persistent-nodemap: yes no no
copies-sdc: no no no
plain-cl-delta: yes yes yes
compression: zlib zlib zlib
compression-level: default default default
$ hg debugupgraderepo --run --no-backup
upgrade will perform the following actions:
requirements
preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
removed: persistent-nodemap
processed revlogs:
- all-filelogs
- changelog
- manifest
beginning upgrade...
repository locked and read-only
creating temporary repository to stage upgraded data: $TESTTMP/test-repo/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes)
downgrading repository to not use persistent nodemap feature
removing temporary repository $TESTTMP/test-repo/.hg/upgrade.* (glob)
$ ls -1 .hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
00changelog-*.nd (glob)
00manifest-*.nd (glob)
undo.backup.00changelog.n
undo.backup.00manifest.n
$ hg debugnodemap --metadata
upgrading
$ cat << EOF >> .hg/hgrc
> [format]
> use-persistent-nodemap=yes
> EOF
$ hg debugformat -v
format-variant repo config default
fncache: yes yes yes
dotencode: yes yes yes
generaldelta: yes yes yes
share-safe: no no no
sparserevlog: yes yes yes
sidedata: no no no
persistent-nodemap: no yes no
copies-sdc: no no no
plain-cl-delta: yes yes yes
compression: zlib zlib zlib
compression-level: default default default
$ hg debugupgraderepo --run --no-backup
upgrade will perform the following actions:
requirements
preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
added: persistent-nodemap
persistent-nodemap
Speedup revision lookup by node id.
processed revlogs:
- all-filelogs
- changelog
- manifest
beginning upgrade...
repository locked and read-only
creating temporary repository to stage upgraded data: $TESTTMP/test-repo/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes)
upgrading repository to use persistent nodemap feature
removing temporary repository $TESTTMP/test-repo/.hg/upgrade.* (glob)
$ ls -1 .hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
00changelog-*.nd (glob)
00changelog.n
00manifest-*.nd (glob)
00manifest.n
undo.backup.00changelog.n
undo.backup.00manifest.n
$ hg debugnodemap --metadata
uid: * (glob)
tip-rev: 5005
tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
data-length: 121088
data-unused: 0
data-unused: 0.000%
Running unrelated upgrade
$ hg debugupgraderepo --run --no-backup --quiet --optimize re-delta-all
upgrade will perform the following actions:
requirements
preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, sparserevlog, store
optimisations: re-delta-all
processed revlogs:
- all-filelogs
- changelog
- manifest
$ ls -1 .hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
00changelog-*.nd (glob)
00changelog.n
00manifest-*.nd (glob)
00manifest.n
$ hg debugnodemap --metadata
uid: * (glob)
tip-rev: 5005
tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
data-length: 121088
data-unused: 0
data-unused: 0.000%
Persistent nodemap and local/streaming clone
============================================
$ cd ..
standard clone
--------------
The persistent nodemap should exist after a streaming clone
$ hg clone --pull --quiet -U test-repo standard-clone
$ ls -1 standard-clone/.hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
00changelog-*.nd (glob)
00changelog.n
00manifest-*.nd (glob)
00manifest.n
$ hg -R standard-clone debugnodemap --metadata
uid: * (glob)
tip-rev: 5005
tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
data-length: 121088
data-unused: 0
data-unused: 0.000%
local clone
------------
The persistent nodemap should exist after a streaming clone
$ hg clone -U test-repo local-clone
$ ls -1 local-clone/.hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
00changelog-*.nd (glob)
00changelog.n
00manifest-*.nd (glob)
00manifest.n
$ hg -R local-clone debugnodemap --metadata
uid: * (glob)
tip-rev: 5005
tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
data-length: 121088
data-unused: 0
data-unused: 0.000%
stream clone
------------
The persistent nodemap should exist after a streaming clone
$ hg clone -U --stream --config ui.ssh="\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/test-repo stream-clone --debug | egrep '00(changelog|manifest)'
adding [s] 00manifest.n (70 bytes)
adding [s] 00manifest.i (313 KB)
adding [s] 00manifest.d (452 KB)
adding [s] 00manifest-*.nd (118 KB) (glob)
adding [s] 00changelog.n (70 bytes)
adding [s] 00changelog.i (313 KB)
adding [s] 00changelog.d (360 KB)
adding [s] 00changelog-*.nd (118 KB) (glob)
$ ls -1 stream-clone/.hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
00changelog-*.nd (glob)
00changelog.n
00manifest-*.nd (glob)
00manifest.n
$ hg -R stream-clone debugnodemap --metadata
uid: * (glob)
tip-rev: 5005
tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe
data-length: 121088
data-unused: 0
data-unused: 0.000%