0050a9b5f6
Replacing Guava caches with Caffeine reduces the chances of having the deadlocks and improves the cache performance. This was already attempted in: I8d2b17a94d0, but got reverted in: If65560b4a9b due to recursion in PatchListLoader. This recursion issue is present on current master. While this change replaces all caches with Caffeine backend, the follow-up change in this series will switch back to using Guava backend for PatchListCache implementation. For seamless integration, the caffeine-guava adapter library is used. Given that the final artifact for the adapter is also called guava, there is only the version number that differentiates that artifact from the guava library itself so that we have a danger for naming collision. To avoid potential naming collision risk, rename the library name to caffeine-guava.jar during the fetch from Maven Central. Alternatives considered is not to use the caffeine-guava adapter library. But then the Cache and LoadingCache classes and friends would change the package name from com.google.common.cache package to com.github.benmanes.caffeine.cache package and this change would also affect some gerrit plugins and thus considered to be a quite intrusive change. Still we can consider to do this change in one of the future gerrit releases. Bug: Issue 7645 Bug: Issue 11484 Change-Id: I6af4c15d6c15f438becd62409b7d233c309be8de
Gerrit Code Review
Gerrit is a code review and project management tool for Git based projects.
Objective
Gerrit makes reviews easier by showing changes in a side-by-side display, and allowing inline comments to be added by any reviewer.
Gerrit simplifies Git based project maintainership by permitting any authorized user to submit changes to the master Git repository, rather than requiring all approved changes to be merged in by hand by the project maintainer.
Documentation
For information about how to install and use Gerrit, refer to the documentation.
Source
Our canonical Git repository is located on googlesource.com. There is a mirror of the repository on Github.
Reporting bugs
Please report bugs on the issue tracker.
Contribute
Gerrit is the work of hundreds of contributors. We appreciate your help!
Please read the contribution guidelines.
Note that we do not accept Pull Requests via the Github mirror.
Getting in contact
The Developer Mailing list is repo-discuss on Google Groups.
License
Gerrit is provided under the Apache License 2.0.
Build
Install Bazel and run the following:
git clone --recurse-submodules https://gerrit.googlesource.com/gerrit
cd gerrit && bazel build release
Install binary packages (Deb/Rpm)
The instruction how to configure GerritForge/BinTray repositories is here
On Debian/Ubuntu run:
apt-get update & apt-get install gerrit=<version>-<release>
NOTE: release is a counter that starts with 1 and indicates the number of packages that have been released with the same version of the software.
On CentOS/RedHat run:
yum clean all && yum install gerrit-<version>[-<release>]
On Fedora run:
dnf clean all && dnf install gerrit-<version>[-<release>]
Use pre-built Gerrit images on Docker
Docker images of Gerrit are available on DockerHub
To run a CentOS 7 based Gerrit image:
docker run -p 8080:8080 gerritforge/gerrit-centos7[:version]
To run a Ubuntu 15.04 based Gerrit image:
docker run -p 8080:8080 gerritforge/gerrit-ubuntu15.04[:version]
NOTE: release is optional. Last released package of the version is installed if the release number is omitted.