[GitHub] [pulsar] merlimat opened a new issue #13302: PIP-117: Change Pulsar standalone defaults

[GitBox <gi...@apache.org>]

merlimat opened a new issue #13302:
URL: https://github.com/apache/pulsar/issues/13302


   ## Motivation
   
   Pulsar standalone is the "Pulsar in a box" version of a Pulsar cluster, where
   all the components are started within the context of a single JVM process.
   
   Users are using the standalone a as way to get quickly started with Pulsar or
   in all the cases where it makes sense to have a single node deployment.
   
   Right now, the standalone is starting by default many components, several of
   which are quite complex, since they are designed to be deployed in a distributed
   fashion.
   
   ## Goal
   
   Simplify the components of Pulsar standalone to achieve:
   
    1. Reduce complexity
    2. Reduce startup time
    3. Reduce memory and CPU footprint of running standalone
   
   ## Proposed changes
   
   The proposal here is to change some of the default implementations that are
   used for the Pulsar standalone.
   
    1. **Metadata Store implementation** -->
         Change from ZooKeeper to RocksDB
   
    2. **Pulsar functions package backend** -->
         Change from using DistributedLog to using local filesystem, storing the
         jars directly in the data folder instead of uploading them into BK.
   
    3. **Pulsar functions state store implementation** -->
         Change the state store to be backed by a MetadataStore based backed,
         with the RocksDB implementation.
   
    4. **Table Service** -->
         Do not start BK table service by default
   
   ## Compatibility considerations
   
   In order to avoid compatibility issues where users have existing Pulsar
   standalone services that they want to upgrade without conflicts, we will
   follow the principle of keeping the old defaults where there is existing
   data on the disk.
   
   We will add a file, serving the purpose as a flag, in the `data/standalone`
   directory, for example `new-2.10-defaults`.
   
   If the file is present, or if the data directory is completely missing, we
   will adopt the new set of default configuration settings.
   
   If the file is not there, we will continue to use existing defaults and we will
   not break the upgrade operation.
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: commits-unsubscribe@pulsar.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org

[GitHub] [pulsar] github-actions[bot] commented on issue #13302: PIP-117: Change Pulsar standalone defaults

[GitBox <gi...@apache.org>]

github-actions[bot] commented on issue #13302:
URL: https://github.com/apache/pulsar/issues/13302#issuecomment-1069834859


   The issue had no activity for 30 days, mark with Stale label.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: commits-unsubscribe@pulsar.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org