[ https://issues.apache.org/jira/browse/HBASE-27529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17677596#comment-17677596 ]
Hudson commented on HBASE-27529: -------------------------------- Results for branch branch-2.4 [build #493 on builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2.4/493/]: (x) *{color:red}-1 overall{color}* ---- details (if available): (/) {color:green}+1 general checks{color} -- For more information [see general report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2.4/493/General_20Nightly_20Build_20Report/] (x) {color:red}-1 jdk8 hadoop2 checks{color} -- For more information [see jdk8 (hadoop2) report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2.4/493/JDK8_20Nightly_20Build_20Report_20_28Hadoop2_29/] (/) {color:green}+1 jdk8 hadoop3 checks{color} -- For more information [see jdk8 (hadoop3) report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2.4/493/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/] (/) {color:green}+1 jdk11 hadoop3 checks{color} -- For more information [see jdk11 report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2.4/493/JDK11_20Nightly_20Build_20Report_20_28Hadoop3_29/] (/) {color:green}+1 source release artifact{color} -- See build output for details. (/) {color:green}+1 client integration test{color} > Provide RS coproc ability to attach WAL extended attributes to mutations at > replication sink > -------------------------------------------------------------------------------------------- > > Key: HBASE-27529 > URL: https://issues.apache.org/jira/browse/HBASE-27529 > Project: HBase > Issue Type: Improvement > Reporter: Viraj Jasani > Assignee: Viraj Jasani > Priority: Major > Fix For: 2.6.0, 3.0.0-alpha-4, 2.4.16, 2.5.3 > > > HBase provides coproc ability to enhance WALKey attributes (a.k.a. WAL > annotations) in order for the replication sink cluster to build required > metadata with the mutations. The endpoint is preWALAppend(). This ability was > provided by HBASE-22622. The map of extended attributes is optional and hence > not directly used by hbase internally. > For any hbase downstreamers to build CDC (Change Data Capture) like > functionality, it might required additional metadata in addition to the ones > being used by hbase already (replication scope, list of cluster ids, seq id, > table name, region id etc). For instance, Phoenix uses many additional > attributes like tenant id, schema name, table type etc. > We already have this extended map of attributes available in WAL protobuf, to > provide us the capability to (de)serialize it. While creating new > ReplicateWALEntryRequest from the list of WAL entires, we are able to > serialize the additional attributes. Similarly, at the replication sink side, > the deserialized WALEntry has the extended attributes available. > At the sink cluster, we should be able to attach the deserialized extended > attributes to the newly generated mutations so that the peer cluster can > utilize the mutation attributes to re-build required metadata. -- This message was sent by Atlassian Jira (v8.20.10#820010)