Setting the distance threshold to 2000 in PackWriterBitmapPreparer to
reduce memory usage in garbage collection. When the threshold is 0, GC
for the msm repository would use about 37 GB memory to complete. After
setting it to 2000, GC can finish in 75 min with about 10 GB memory.
Change-Id: I39783eeecbae58261c883735499e61ee1cac75fe
Signed-off-by: Yunjie Li <yunjieli@google.com>
Currently we're buffering the inflated bitmap entry in BasePackBitmapIndex
to optimize running time. However, this will use lots of memory during
the construction of the pack bitmap index file which may cause failure of
garbage collection.
The running time didn't increase significantly, if there's any increase,
after removing the buffering here. The report about usage of time/memory
will come in the next commit.
Change-Id: I874503ecc85714acab7ca62a6a7968c2dc0b56b3
Signed-off-by: Yunjie Li <yunjieli@google.com>
The convertedBitmaps serves for time-optimization purpose. But it's
actually not saving time much but using lots of memory. So remove the
field here to save memory.
Currently the remapper class is only used in the construction of the
bitmap index file. And during the preparation of the file, we're only
getting bitmaps from the remapper when finding objects accessible from
a commit, so bitmap associated with each commit will only be fetched once
and thus the convertedBitmaps would hardly be read, which means that it's
not saving time.
Change-Id: Ic942a8e485135fb177ec21d09282d08ca6646fdb
Signed-off-by: Yunjie Li <yunjieli@google.com>
Currently, the garbage collection is consistently failing for some large
repositories in the building bitmap phase, e.g.Linux-MSM project:
https://source.codeaurora.org/quic/la/kernel/msm-3.18
Historically, bitmap index creation happened in 3 phases:
1. Select the commits to which bitmaps should be attached.
2. Create all bitmaps for these commits, stored in uncompressed format
in the PackBitmapIndexBuilder.
3. Deltify the bitmaps and write them to disk.
We investigated the process. For phase 2 it's most efficient to create
bitmaps starting with oldest commit and moving to the newest commit,
because the newer commits are able to reuse the work for the old ones.
But for bitmap deltification in phase 3, it's better when a newer
commit's bitmap is the base, and the current disk format writes bitmaps
out for the newest commits first.
This change introduces a new collection to hold the deltified and
compressed representations of the bitmaps, keeping a smaller subset of
commits in the PackBitmapIndexBuilder to help make the bitmap index
creation more memory efficient.
And in this commit, we're setting DISTANCE_THRESHOLD to 0 in the
PackWriterBitmapPreparer, which means the garbage collection will not
have much behavoir change and will still use as much memory as before.
Change-Id: I6ec2c3e8dde11805af47874d67d33cf1ef83660e
Signed-off-by: Yunjie Li <yunjieli@google.com>
Add a new revwalk filter, AddToBitmapWithCachedFilter. This filter updates
a client-provided {@code BitmapBuilder} as a side effect of a revwalk.
Similar to {@code AddToBitmapFilter}, it short circuits the walk when it
encounters a commit which is included in the provided bitmap's BitmapIndex.
It also short circuits the walk if it encounters the client-provided
cached commit.
Change-Id: I62cb503016f4d3995d648d92b82baab7f93549a9
Signed-off-by: Yunjie Li <yunjieli@google.com>
Add some utility methods and a builder class for BitmapCommit class in
preparation for improving the memory footprint of GC's bitmap generation
phase.
Change-Id: Ice3d257fc26f3917a65a64eaf53b508b89043caa
Signed-off-by: Yunjie Li <yunjieli@google.com>
Move BitmapCommit from inside the PackWriterBitmapPreparer to a new
top-level class in preparation for improving the memory footprint of GC's
bitmap generation phase.
Change-Id: I4d404a5b3a34998b441d23105197f33d32d39670
Signed-off-by: Yunjie Li <yunjieli@google.com>
Make retrieveCompressed() a method of Bitmap interface to avoid type
casting and later reuse in improving the memory footprint of GC's bitmap
generation phase.
Change-Id: I098d85105cf17af845d43b8c71b4ca48b02fd7da
Signed-off-by: Yunjie Li <yunjieli@google.com>
In Id5376f09f0d a test with dependency on log4j library was added, but
the library was missed to be added to the Bazel build tool chain.
Given that Bazel test runner doesn't suport custom security manager the
test wouldn't pass even if the missing dependency would be added. The
only solution we have for now is to exclude that test from Bazel tool
chain.
Filed a feature request for bazel to support such tests at
https://github.com/bazelbuild/bazel/issues/11146
Bug: 562274
Change-Id: I873a0e09addc583455b68122f66cd3952e485f0e
Signed-off-by: David Ostrovsky <david@ostrovsky.org>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.7:
Remove double blank from sentence start
Bump Bazel version to 3.0.0
Scan through all merged reftables for max/min update indices
Change-Id: Idee792c6e65ca3fb283dba850f17d6554aaa1fa7
Multiple whitespaces are not normalized when reading properties files,
therefore leading to unwanted space/indentation in console or UI output.
Change-Id: I1f5224fe359e0cac493e0237872afc75dc8b9fbe
Signed-off-by: Michael Keppler <Michael.Keppler@gmx.de>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
(cherry picked from commit ebbc3efce7)
Multiple whitespaces are not normalized when reading properties files,
therefore leading to unwanted space/indentation in console or UI output.
Change-Id: I1f5224fe359e0cac493e0237872afc75dc8b9fbe
Signed-off-by: Michael Keppler <Michael.Keppler@gmx.de>
Since reftables might have update index ranges that are overlapped.
Change-Id: I8f8215b99a0a978d4dd0155dbaf33e5e06ea8202
Signed-off-by: Minh Thai <mthai@google.com>
(cherry picked from commit 06748c205c)
Ensure files are writable before trying to delete them.
Bug: 408846
Change-Id: I930a547594bba853c33634ae54bd64d236afade3
Signed-off-by: Alexander Nittka <alex@nittka.de>
* stable-5.7:
FS.runInShell(): handle quoted filters and hooksPath containing blanks
Handle non-normalized index also for executable files
Prepare 5.7.1-SNAPSHOT builds
JGit v5.7.0.202003110725-r
Change-Id: I8a8580e44bfa05989d476cf22a029abd4fd407c6
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
* stable-5.6:
FS.runInShell(): handle quoted filters and hooksPath containing blanks
Handle non-normalized index also for executable files
Change-Id: I240377e87c073ee7a621a88e39fc319c59fa037a
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Revert commit 2323d7a. Using $0 in the shell command call results in
the command string being taken literally. That was introduced to fix
a problem with backslashes, but is actually not correct.
First, the problem with backslashes occurred only on Win32/Cygwin,
and has been properly fixed in commit 6f268f8.
Second, this is used only for hooks (which don't have backslashes in
their names) and filter commands from the git config, where the user
is responsible for properly quoting or escaping such that the commands
work.
Third, using $0 actually breaks correctly quoted filter commands
like in the bug report. The shell really takes the command literally,
and then doesn't find the command because of quotes.
So revert this change.
At the same time there's a related problem with hooks. If the path to
the hook contains blanks, runInShell() would also fail to find the
hook. In this case, the command doesn't come from user input but is
just a Java File object with an absolute path containing blanks. (Can
occur if core.hooksPath points to such a path with blanks, or if the
repository has such a path.)
The path to the hook as obtained from the file system must be quoted.
Add a test for a hook path with a blank.
This reverts commit 2323d7a1ef.
Bug: 561666
Change-Id: I4d7df13e6c9b245fe1706e191e4316685a8a9d59
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Change-Id: Ifb8227cb62370029d6774f2a22b15d6478c713ca
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
ReceiveCommand can have an error message. This is shown only for some
cases even if it's set. This change uses the error message if it's set,
and fallback to the default message if unset.
Change-Id: I8d906e71ad08cf49bcdb28caea8fcc66798c68ff
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
Commit 60cf85a4 corrected the handling of check-in for files where
the index version is non-normalized, i.e., contains CR-LF line endings.
However, it did so only for regular files, not executable files.
Bug: 561438
Change-Id: I372cc990c5efeb00315460f36459c0652d5d1e77
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Change target platforms to Orbit I20200319180910 and regenerate them.
Change package imports to [2.4.0,2.5.0); adapt code to upstream API
changes.
Maven build: update version in root pom.
Bazel build: update version & hash in WORKSPACE file.
Proxy functionality verified manually using 3proxy (HTTP & SOCKS,
with basic authentication) and ssh -vvv -D7020 localhost (SOCKS, no
authentication).
Bug: 561078
Change-Id: I582f6b98055b013c006f2c749890fe6db801cbaa
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Since reftables might have update index ranges that are overlapped.
Change-Id: I8f8215b99a0a978d4dd0155dbaf33e5e06ea8202
Signed-off-by: Minh Thai <mthai@google.com>
The recursive merge strategy builds a virtual ancestor merging
recursively the common bases (when more than one) between the
want-to-merge commits. While building this virtual ancestor, content
conflicts are ignored, but current code doesn't do so when a file is
removed.
This was spotted in [1], for example. Merging two commits to build the
virtual ancestor bumped into a conflict (modified in one side, deleted
in the other) that stopped the process.
Follow the "spec" and in case of conflict leave the unmerged content in
the index and working trees.
[1] https://android-review.googlesource.com/c/kernel/common/+/1228962
Change-Id: Ife9c32ae3ac3a87d3660fa1242e07854b65169d5
Signed-off-by: Ivan Frade <ifrade@google.com>
Allow explicitly setting the tag option for the remote configuration
when cloning a repository.
Bug: 561021
Change-Id: Iac43268a2bb231ae7599c3255bf555883d34fa32
Signed-off-by: Alexander Nittka <alex@nittka.de>
The error message for an Exception thrown by StartGenerator when given
both the TOPO flag and the TOPO_KEEP_BRANCH_TOGETHER flag mentions a
non-existent flag, TOPO_NON_INTERMIX. The error message was introduced
in commit e498d43.
Replace TOPO_NON_INTERMIX with TOPO_KEEP_BRANCH_TOGETHER in the error
message of an Exception thrown by the StartGenerator when the TOPO flag
is provided together with the TOPO_KEEP_BRANCH_TOGETHER flag.
Signed-off-by: Alex Spradlin <alexaspradlin@google.com>
Change-Id: Id24640dc08e96a196508fe38ce144aa7e035082f
The topological sort algorithm in TopoSortGenerator for RevWalk may mix
multiple lines of history, producing results that differ from C git's
git-log whose man page states: "Show no parents before all of its
children are shown, and avoid showing commits on multiple lines of
history intermixed." Lines of history are mixed because
TopoSortGenerator merely delays producing a commit until all of its
children have been produced; it does not immediately produce a commit
after its last child has been produced.
Therefore, add a new RevSort option called TOPO_KEEP_BRANCH_TOGETHER
with a new topo sort algorithm in TopoNonIntermixGenerator. In the
Generator, when the last child of a commit has been produced, unpop
that commit so that it will be returned upon the subsequent call to
next(). To avoid producing duplicates, mark commits that have not yet
been produced as TOPO_QUEUED so that when a commit is popped, it is
produced if and only if TOPO_QUEUED is set.
To support nesting with other generators that may produce the same
commit multiple times like DepthGenerator (for example, StartGenerator
does this), do not increment parent inDegree for the same child commit
more than once.
Commit b5e764abd2 modified the existing
TopoSortGenerator to avoid mixing lines of history, but it was reverted
in e40c38ab08 because the new behavior
caused problems for EGit users. This motivated adding a new Generator
for the new behavior.
Signed-off-by: Alex Spradlin <alexaspradlin@google.com>
Change-Id: Icbb24eac98c00e45c175b01e1c8122554f617933
RFC 7538[1] added HTTP response code 308, signifying a permanent
redirect that, contrary to the older 301, does not allow changing
the request method from POST to GET.
[1] https://tools.ietf.org/html/rfc7538
Bug: 560936
Change-Id: Ib65f3a3ed75db51d74d1fe81d4abe6fe92b0ca12
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Yunjie Li
Konrad Windszus
Matthias Sohn
David Ostrovsky
Michael Keppler
David Pursehouse
Terry Parker
Minh Thai
Alexander Nittka
Thomas Wolf
Karsten Thoms
Masaya Suzuki
Ivan Frade
Christian Halstrick
Alex Spradlin
Jonathan Nieder