Mercurial > hg
view tests/test-persistent-nodemap.t @ 47234:616b8f412676
revlogv2: introduce a very basic docket file
This is the first stone toward using a docket file in revlogv2. Right now the
docket is very basic and only store the version number (which is -also- stored
into the index file…) and the other files have fixed name. This new
implementation break transactionally… but they are no test checking
transactionally for revlogv2… So I take this as an opportunity to start small.
They are no usage of revlogv2 outside of tests anyway.
The docket keeps the `.i` naming used by previous version index to preserve a
unique entry point. We could decide to use a different name and look it up
first, or to fully rework this in a future "store" version. However that does
not seems necessary right now.
We will re-introduces transactionality (and associated testing…) in a later
changesets.
A long list of TODOs have been added to the relevant comment.
Differential Revision: https://phab.mercurial-scm.org/D10624
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Mon, 03 May 2021 12:34:11 +0200 |
| parents | 9e3979a25bfe |
| children | 6c84fc9c9a90 |
line wrap: on
line source
=================================== Test the persistent on-disk nodemap =================================== #if no-rust $ cat << EOF >> $HGRCPATH > [format] > use-persistent-nodemap=yes > [devel] > persistent-nodemap=yes > EOF #endif $ 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 persistent-nodemap: yes copies-sdc: no revlog-v2: no plain-cl-delta: yes compression: zlib (no-zstd !) compression: zstd (zstd !) 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. $ echo qpoasp > a $ hg ci -m a2 \ > --config "hooks.pretxnclose=sh \"$RUNTESTDIR/testlib/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) $ sh "$RUNTESTDIR/testlib/wait-on-file" 20 sync-txn-pending && \ > hg debugnodemap --metadata && \ > sh "$RUNTESTDIR/testlib/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 persistent-nodemap: yes no no copies-sdc: no no no revlog-v2: no no no plain-cl-delta: yes yes yes compression: zlib zlib zlib (no-zstd !) compression: zstd zstd zstd (zstd !) compression-level: default default default $ hg debugupgraderepo --run --no-backup upgrade will perform the following actions: requirements preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-zstd !) preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !) 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 persistent-nodemap: no yes no copies-sdc: no no no revlog-v2: no no no plain-cl-delta: yes yes yes compression: zlib zlib zlib (no-zstd !) compression: zstd zstd zstd (zstd !) compression-level: default default default $ hg debugupgraderepo --run --no-backup upgrade will perform the following actions: requirements preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-zstd !) preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !) 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 (no-zstd !) preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !) 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% Test various corruption case ============================ Missing datafile ---------------- Test behavior with a missing datafile $ hg clone --quiet --pull test-repo corruption-test-repo $ ls -1 corruption-test-repo/.hg/store/00changelog* corruption-test-repo/.hg/store/00changelog-*.nd (glob) corruption-test-repo/.hg/store/00changelog.d corruption-test-repo/.hg/store/00changelog.i corruption-test-repo/.hg/store/00changelog.n $ rm corruption-test-repo/.hg/store/00changelog*.nd $ hg log -R corruption-test-repo -r . changeset: 5005:90d5d3ba2fc4 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a2 $ ls -1 corruption-test-repo/.hg/store/00changelog* corruption-test-repo/.hg/store/00changelog.d corruption-test-repo/.hg/store/00changelog.i corruption-test-repo/.hg/store/00changelog.n Truncated data file ------------------- Test behavior with a too short datafile rebuild the missing data $ hg -R corruption-test-repo debugupdatecache $ ls -1 corruption-test-repo/.hg/store/00changelog* corruption-test-repo/.hg/store/00changelog-*.nd (glob) corruption-test-repo/.hg/store/00changelog.d corruption-test-repo/.hg/store/00changelog.i corruption-test-repo/.hg/store/00changelog.n truncate the file $ datafilepath=`ls corruption-test-repo/.hg/store/00changelog*.nd` $ f -s $datafilepath corruption-test-repo/.hg/store/00changelog-*.nd: size=121088 (glob) $ dd if=$datafilepath bs=1000 count=10 of=$datafilepath-tmp status=noxfer 10+0 records in 10+0 records out $ mv $datafilepath-tmp $datafilepath $ f -s $datafilepath corruption-test-repo/.hg/store/00changelog-*.nd: size=10000 (glob) Check that Mercurial reaction to this event $ hg -R corruption-test-repo log -r . --traceback changeset: 5005:90d5d3ba2fc4 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a2 stream clone ============ The persistent nodemap should exist after a streaming clone Simple case ----------- No race condition $ 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-*.nd (118 KB) (glob) adding [s] 00changelog.n (70 bytes) adding [s] 00changelog-*.nd (118 KB) (glob) adding [s] 00manifest.d (452 KB) (no-zstd !) adding [s] 00manifest.d (491 KB) (zstd !) adding [s] 00changelog.d (360 KB) (no-zstd !) adding [s] 00changelog.d (368 KB) (zstd !) adding [s] 00manifest.i (313 KB) adding [s] 00changelog.i (313 KB) $ 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% new data appened ----------------- Other commit happening on the server during the stream clone setup the step-by-step stream cloning $ HG_TEST_STREAM_WALKED_FILE_1="$TESTTMP/sync_file_walked_1" $ export HG_TEST_STREAM_WALKED_FILE_1 $ HG_TEST_STREAM_WALKED_FILE_2="$TESTTMP/sync_file_walked_2" $ export HG_TEST_STREAM_WALKED_FILE_2 $ HG_TEST_STREAM_WALKED_FILE_3="$TESTTMP/sync_file_walked_3" $ export HG_TEST_STREAM_WALKED_FILE_3 $ cat << EOF >> test-repo/.hg/hgrc > [extensions] > steps=$RUNTESTDIR/testlib/ext-stream-clone-steps.py > EOF Check and record file state beforehand $ f --size test-repo/.hg/store/00changelog* test-repo/.hg/store/00changelog-*.nd: size=121088 (glob) test-repo/.hg/store/00changelog.d: size=376891 (zstd !) test-repo/.hg/store/00changelog.d: size=368890 (no-zstd !) test-repo/.hg/store/00changelog.i: size=320384 test-repo/.hg/store/00changelog.n: size=70 $ hg -R test-repo debugnodemap --metadata | tee server-metadata.txt uid: * (glob) tip-rev: 5005 tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe data-length: 121088 data-unused: 0 data-unused: 0.000% Prepare a commit $ echo foo >> test-repo/foo $ hg -R test-repo/ add test-repo/foo Do a mix of clone and commit at the same time so that the file listed on disk differ at actual transfer time. $ (hg clone -U --stream --config ui.ssh="\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/test-repo stream-clone-race-1 --debug 2>> clone-output | egrep '00(changelog|manifest)' >> clone-output; touch $HG_TEST_STREAM_WALKED_FILE_3) & $ $RUNTESTDIR/testlib/wait-on-file 10 $HG_TEST_STREAM_WALKED_FILE_1 $ hg -R test-repo/ commit -m foo $ touch $HG_TEST_STREAM_WALKED_FILE_2 $ $RUNTESTDIR/testlib/wait-on-file 10 $HG_TEST_STREAM_WALKED_FILE_3 $ cat clone-output adding [s] 00manifest.n (70 bytes) adding [s] 00manifest-*.nd (118 KB) (glob) adding [s] 00changelog.n (70 bytes) adding [s] 00changelog-*.nd (118 KB) (glob) adding [s] 00manifest.d (452 KB) (no-zstd !) adding [s] 00manifest.d (491 KB) (zstd !) adding [s] 00changelog.d (360 KB) (no-zstd !) adding [s] 00changelog.d (368 KB) (zstd !) adding [s] 00manifest.i (313 KB) adding [s] 00changelog.i (313 KB) Check the result state $ f --size stream-clone-race-1/.hg/store/00changelog* stream-clone-race-1/.hg/store/00changelog-*.nd: size=121088 (glob) stream-clone-race-1/.hg/store/00changelog.d: size=368890 (no-zstd !) stream-clone-race-1/.hg/store/00changelog.d: size=376891 (zstd !) stream-clone-race-1/.hg/store/00changelog.i: size=320384 stream-clone-race-1/.hg/store/00changelog.n: size=70 $ hg -R stream-clone-race-1 debugnodemap --metadata | tee client-metadata.txt uid: * (glob) tip-rev: 5005 tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe data-length: 121088 data-unused: 0 data-unused: 0.000% We get a usable nodemap, so no rewrite would be needed and the metadata should be identical (ie: the following diff should be empty) This isn't the case for the `no-rust` `no-pure` implementation as it use a very minimal nodemap implementation that unconditionnaly rewrite the nodemap "all the time". #if no-rust no-pure $ diff -u server-metadata.txt client-metadata.txt --- server-metadata.txt * (glob) +++ client-metadata.txt * (glob) @@ -1,4 +1,4 @@ -uid: * (glob) +uid: * (glob) tip-rev: 5005 tip-node: 90d5d3ba2fc47db50f712570487cb261a68c8ffe data-length: 121088 [1] #else $ diff -u server-metadata.txt client-metadata.txt #endif Clean up after the test. $ rm -f "$HG_TEST_STREAM_WALKED_FILE_1" $ rm -f "$HG_TEST_STREAM_WALKED_FILE_2" $ rm -f "$HG_TEST_STREAM_WALKED_FILE_3" full regeneration ----------------- A full nodemap is generated (ideally this test would append enough data to make sure the nodemap data file get changed, however to make thing simpler we will force the regeneration for this test. Check the initial state $ f --size test-repo/.hg/store/00changelog* test-repo/.hg/store/00changelog-*.nd: size=121344 (glob) (rust !) test-repo/.hg/store/00changelog-*.nd: size=121344 (glob) (pure !) test-repo/.hg/store/00changelog-*.nd: size=121152 (glob) (no-rust no-pure !) test-repo/.hg/store/00changelog.d: size=376950 (zstd !) test-repo/.hg/store/00changelog.d: size=368949 (no-zstd !) test-repo/.hg/store/00changelog.i: size=320448 test-repo/.hg/store/00changelog.n: size=70 $ hg -R test-repo debugnodemap --metadata | tee server-metadata-2.txt uid: * (glob) tip-rev: 5006 tip-node: ed2ec1eef9aa2a0ec5057c51483bc148d03e810b data-length: 121344 (rust !) data-length: 121344 (pure !) data-length: 121152 (no-rust no-pure !) data-unused: 192 (rust !) data-unused: 192 (pure !) data-unused: 0 (no-rust no-pure !) data-unused: 0.158% (rust !) data-unused: 0.158% (pure !) data-unused: 0.000% (no-rust no-pure !) Performe the mix of clone and full refresh of the nodemap, so that the files (and filenames) are different between listing time and actual transfer time. $ (hg clone -U --stream --config ui.ssh="\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/test-repo stream-clone-race-2 --debug 2>> clone-output-2 | egrep '00(changelog|manifest)' >> clone-output-2; touch $HG_TEST_STREAM_WALKED_FILE_3) & $ $RUNTESTDIR/testlib/wait-on-file 10 $HG_TEST_STREAM_WALKED_FILE_1 $ rm test-repo/.hg/store/00changelog.n $ rm test-repo/.hg/store/00changelog-*.nd $ hg -R test-repo/ debugupdatecache $ touch $HG_TEST_STREAM_WALKED_FILE_2 $ $RUNTESTDIR/testlib/wait-on-file 10 $HG_TEST_STREAM_WALKED_FILE_3 $ cat clone-output-2 adding [s] 00manifest.n (70 bytes) adding [s] 00manifest-*.nd (118 KB) (glob) adding [s] 00changelog.n (70 bytes) adding [s] 00changelog-*.nd (118 KB) (glob) adding [s] 00manifest.d (492 KB) (zstd !) adding [s] 00manifest.d (452 KB) (no-zstd !) adding [s] 00changelog.d (360 KB) (no-zstd !) adding [s] 00changelog.d (368 KB) (zstd !) adding [s] 00manifest.i (313 KB) adding [s] 00changelog.i (313 KB) Check the result. $ f --size stream-clone-race-2/.hg/store/00changelog* stream-clone-race-2/.hg/store/00changelog-*.nd: size=121344 (glob) (rust !) stream-clone-race-2/.hg/store/00changelog-*.nd: size=121344 (glob) (pure !) stream-clone-race-2/.hg/store/00changelog-*.nd: size=121152 (glob) (no-rust no-pure !) stream-clone-race-2/.hg/store/00changelog.d: size=376950 (zstd !) stream-clone-race-2/.hg/store/00changelog.d: size=368949 (no-zstd !) stream-clone-race-2/.hg/store/00changelog.i: size=320448 stream-clone-race-2/.hg/store/00changelog.n: size=70 $ hg -R stream-clone-race-2 debugnodemap --metadata | tee client-metadata-2.txt uid: * (glob) tip-rev: 5006 tip-node: ed2ec1eef9aa2a0ec5057c51483bc148d03e810b data-length: 121344 (rust !) data-unused: 192 (rust !) data-unused: 0.158% (rust !) data-length: 121152 (no-rust no-pure !) data-unused: 0 (no-rust no-pure !) data-unused: 0.000% (no-rust no-pure !) data-length: 121344 (pure !) data-unused: 192 (pure !) data-unused: 0.158% (pure !) We get a usable nodemap, so no rewrite would be needed and the metadata should be identical (ie: the following diff should be empty) This isn't the case for the `no-rust` `no-pure` implementation as it use a very minimal nodemap implementation that unconditionnaly rewrite the nodemap "all the time". #if no-rust no-pure $ diff -u server-metadata-2.txt client-metadata-2.txt --- server-metadata-2.txt * (glob) +++ client-metadata-2.txt * (glob) @@ -1,4 +1,4 @@ -uid: * (glob) +uid: * (glob) tip-rev: 5006 tip-node: ed2ec1eef9aa2a0ec5057c51483bc148d03e810b data-length: 121152 [1] #else $ diff -u server-metadata-2.txt client-metadata-2.txt #endif Clean up after the test $ rm -f $HG_TEST_STREAM_WALKED_FILE_1 $ rm -f $HG_TEST_STREAM_WALKED_FILE_2 $ rm -f $HG_TEST_STREAM_WALKED_FILE_3