[jira] [Commented] (HBASE-25771) Recommend Hadoop 3.x
[ https://issues.apache.org/jira/browse/HBASE-25771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17320984#comment-17320984 ] Wei-Chiu Chuang commented on HBASE-25771: - Apart from a number of edge cases (which are subsequently fixed) Hadoop 2.10 client should be able to talk to a hadoop 3.x cluster without problems. > Recommend Hadoop 3.x > > > Key: HBASE-25771 > URL: https://issues.apache.org/jira/browse/HBASE-25771 > Project: HBase > Issue Type: Task > Components: documentation >Reporter: Wei-Chiu Chuang >Priority: Major > > We have this section in the hbase book: > {quote} > Hadoop 2.x is recommended. > Hadoop 2.x is faster and includes features, such as short-circuit reads (see > Leveraging local data), which will help improve your HBase random read > profile. Hadoop 2.x also includes important bug fixes that will improve your > overall HBase experience. HBase does not support running with earlier > versions of Hadoop. See the table below for requirements specific to > different HBase versions. > Hadoop 3.x is still in early access releases and has not yet been > sufficiently tested by the HBase community for production use cases. > {quote} > The Hadoop 2.x development is winding down. 2.10.x will be the last dev > branch. On the contrary, we've got years of production users on Hadoop 3.x > already so I think it's time to change our stance. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (HBASE-25771) Recommend Hadoop 3.x
[ https://issues.apache.org/jira/browse/HBASE-25771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17320634#comment-17320634 ] Duo Zhang commented on HBASE-25771: --- The problem is that, if we still support 2.x, then our dependencies on hadoop should remain on 2.x... But anyway, I think it is fine to use hadoop client 2.10 to communiate with hadoop 3.x cluster? > Recommend Hadoop 3.x > > > Key: HBASE-25771 > URL: https://issues.apache.org/jira/browse/HBASE-25771 > Project: HBase > Issue Type: Task >Reporter: Wei-Chiu Chuang >Priority: Major > > We have this section in the hbase book: > {quote} > Hadoop 2.x is recommended. > Hadoop 2.x is faster and includes features, such as short-circuit reads (see > Leveraging local data), which will help improve your HBase random read > profile. Hadoop 2.x also includes important bug fixes that will improve your > overall HBase experience. HBase does not support running with earlier > versions of Hadoop. See the table below for requirements specific to > different HBase versions. > Hadoop 3.x is still in early access releases and has not yet been > sufficiently tested by the HBase community for production use cases. > {quote} > The Hadoop 2.x development is winding down. 2.10.x will be the last dev > branch. On the contrary, we've got years of production users on Hadoop 3.x > already so I think it's time to change our stance. -- This message was sent by Atlassian Jira (v8.3.4#803005)