commit | a692cbab92e9bae53c9313241d9668d9de97ed8b | [log] [tgz] |
---|---|---|
author | liwang <liwang@apple.com> | Wed Jul 28 11:24:15 2021 +0200 |
committer | Enrico Olivelli <eolivelli@apache.org> | Wed Jul 28 11:24:15 2021 +0200 |
tree | 3bb41b69a7a75f7c8a9adf1a9889f968342ff8ad | |
parent | 2aa17ffe428b9ac8477cedfed293b18f12c2376e [diff] |
ZOOKEEPER-4289: Reduce the performance impact of Prometheus metrics Enabling Prometheus provider has significant impact on the performance of both read and write operations. This is to reduce the impact by making the Prometheus summary reporting as an async operation. Load test results showed that the avg read latency and throughput after the fix is on par with the performance when Prometheus is disabled. For writes, the avg latency was reduced 25% and the avg throughput was increased 20% after the fix. Author: liwang <liwang@apple.com> Reviewers: Enrico Olivelli <eolivelli@apache.org>, Andor Molnar <anmolnar@apache.org> Closes #1698 from li4wang/ZOOKEEPER-4289
For the latest information about Apache ZooKeeper, please visit our website at:
and our wiki, at:
https://cwiki.apache.org/confluence/display/ZOOKEEPER
Either downloaded from https://zookeeper.apache.org/releases.html or found in zookeeper-assembly/target directory after building the project with maven.
apache-zookeeper-[version].tar.gz Contains all the source files which can be built by running: mvn clean install To generate an aggregated apidocs for zookeeper-server and zookeeper-jute: mvn javadoc:aggregate (generated files will be at target/site/apidocs) apache-zookeeper-[version]-bin.tar.gz Contains all the jar files required to run ZooKeeper Full documentation can also be found in the docs folder
As of version 3.5.5, the parent, zookeeper and zookeeper-jute artifacts are deployed to the central repository after the release is voted on and approved by the Apache ZooKeeper PMC:
https://repo1.maven.org/maven2/org/apache/zookeeper/zookeeper
If you are going to compile with Java 1.8, you should use a recent release at u211 or above.
We always welcome new contributors to the project! See How to Contribute for details on how to submit patch through pull request and our contribution workflow.