| commit | 06c86046fefc6555b98d81f3726dd664020aeb28 | [log] [tgz] |
|---|---|---|
| author | David Ostrovsky <david@ostrovsky.org> | Sat Nov 09 12:38:13 2019 +0100 |
| committer | Matthias Sohn <matthias.sohn@sap.com> | Wed Dec 04 01:19:23 2019 +0100 |
| tree | f8b28261b77762df00522df836f07674170f02e3 | |
| parent | b81a9aa509675d3cdfab5ff4701af9ee5eeb15a7 [diff] |
Replace guava caches with caffeine 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 (cherry picked from commit 0050a9b5f61da67a9f33fda0bb170f8b1df6080a)
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