+1. On Mon, Apr 11, 2016 at 10:42 AM, Grant Henke <ghe...@cloudera.com> wrote:
> Based on the discussion in the previous vote thread > < > http://search-hadoop.com/m/uyzND1xlaiU10QlYX&subj=+VOTE+KIP+4+Metadata+Schema > > > I also would like to include a behavior change to the MetadataResponse. I > have update the wiki > < > https://cwiki.apache.org/confluence/display/KAFKA/KIP-4+-+Command+line+and+centralized+administrative+operations#KIP-4-Commandlineandcentralizedadministrativeoperations-MetadataSchema > > > and pull request <https://github.com/apache/kafka/pull/1095> to include > this change. > > The change as described on the wiki is: > > > The behavior of the replicas and isr arrays will be changed in order to > > support the admin tools, and better represent the state of the cluster: > > > > - In version 0, if a broker is down the replicas and isr array will > > omit the brokers entry and add a REPLICA_NOT_AVAILABLE error code. > > - In version 1, no error code will be set and a the broker id will be > > included in the replicas and isr array. > > - Note: A user can still detect if the replica is not available, by > > checking if the broker is in the returned broker list. > > > > > > Being optimistic that this doesn't require to much discussion, I would like > to re-start the voting process on this thread. If more discussion is > needed, please don't hesitate to bring it up here. > > Ismael, Gwen, Guozhang could you please review and revote based on the > changes. > > Thank you, > Grant > > On Sat, Apr 9, 2016 at 1:03 PM, Guozhang Wang <wangg...@gmail.com> wrote: > > > +1 > > > > On Fri, Apr 8, 2016 at 4:36 PM, Gwen Shapira <g...@confluent.io> wrote: > > > > > +1 > > > > > > On Fri, Apr 8, 2016 at 2:41 PM, Grant Henke <ghe...@cloudera.com> > wrote: > > > > > > > I would like to re-initiate the voting process for the "KIP-4 > Metadata > > > > Schema changes". This is not a vote for all of KIP-4, but > specifically > > > for > > > > the metadata changes. I have included the exact changes below for > > > clarity: > > > > > > > > > > Metadata Request (version 1) > > > > > > > > > > > > > > > > > > > > MetadataRequest => [topics] > > > > > > > > > > Stays the same as version 0 however behavior changes. > > > > > In version 0 there was no way to request no topics, and and empty > > list > > > > > signified all topics. > > > > > In version 1 a null topics list (size -1 on the wire) will indicate > > > that > > > > a > > > > > user wants *ALL* topic metadata. Compared to an empty list (size 0) > > > which > > > > > indicates metadata for *NO* topics should be returned. > > > > > Metadata Response (version 1) > > > > > > > > > > > > > > > > > > > > MetadataResponse => [brokers] controllerId [topic_metadata] > > > > > brokers => node_id host port rack > > > > > node_id => INT32 > > > > > host => STRING > > > > > port => INT32 > > > > > rack => NULLABLE_STRING > > > > > controllerId => INT32 > > > > > topic_metadata => topic_error_code topic is_internal > > > > [partition_metadata] > > > > > topic_error_code => INT16 > > > > > topic => STRING > > > > > is_internal => BOOLEAN > > > > > partition_metadata => partition_error_code partition_id leader > > > > [replicas] [isr] > > > > > partition_error_code => INT16 > > > > > partition_id => INT32 > > > > > leader => INT32 > > > > > replicas => INT32 > > > > > isr => INT32 > > > > > > > > > > Adds rack, controller_id, and is_internal to the version 0 > response. > > > > > > > > > > > > > The KIP is available here for reference (linked to the Metadata > schema > > > > section): > > > > * > > > > > > > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-4+-+Command+line+and+centralized+administrative+operations#KIP-4-Commandlineandcentralizedadministrativeoperations-MetadataSchema > > > > < > > > > > > > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-4+-+Command+line+and+centralized+administrative+operations#KIP-4-Commandlineandcentralizedadministrativeoperations-MetadataSchema > > > > >* > > > > > > > > A pull request is available implementing the proposed changes here: > > > > https://github.com/apache/kafka/pull/1095 > > > > > > > > Here are some links to past discussions on the mailing list: > > > > > > http://search-hadoop.com/m/uyzND1pd4T52H1m0u1&subj=Re+KIP+4+Wiki+Update > > > > > > > > > > > > > > http://search-hadoop.com/m/uyzND1J2IXeSNXAT&subj=Metadata+and+ACLs+wire+protocol+review+KIP+4+ > > > > > > > > Here is the previous vote discussion (please take a look and discuss > > > > there): > > > > > > > > > > > > > > http://search-hadoop.com/m/uyzND1xlaiU10QlYX&subj=+VOTE+KIP+4+Metadata+Schema > > > > > > > > Thank you, > > > > Grant > > > > -- > > > > Grant Henke > > > > Software Engineer | Cloudera > > > > gr...@cloudera.com | twitter.com/gchenke | > linkedin.com/in/granthenke > > > > > > > > > > > > > > > -- > > -- Guozhang > > > > > > -- > Grant Henke > Software Engineer | Cloudera > gr...@cloudera.com | twitter.com/gchenke | linkedin.com/in/granthenke > -- -- Guozhang
