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Posted to issues@hbase.apache.org by "mokai (Jira)" <ji...@apache.org> on 2021/03/27 10:19:00 UTC

[jira] [Created] (HBASE-25705) Convert proto to RSGroupInfo is costly

mokai created HBASE-25705:
-----------------------------

             Summary: Convert proto to RSGroupInfo is costly
                 Key: HBASE-25705
                 URL: https://issues.apache.org/jira/browse/HBASE-25705
             Project: HBase
          Issue Type: Improvement
          Components: rsgroup
    Affects Versions: 2.2.3, 3.0.0-alpha-1
            Reporter: mokai


Convert RSGroupProtos.RSGroupInfo to RSGroupInfo is costly if the RSGroup has too many RSs and tables. 

We can use parallelStream to handle the HBaseProtos.ServerName list and TableProtos.TableName list in ProtubufUtil#toGroupInfo as blow.
{quote}Collection<Address> addresses = proto.getServersList()
 .parallelStream()
 .map(server -> Address.fromParts(server.getHostName(), server.getPort()))
 .collect(Collectors.toList());

Collection<TableName> tables = proto.getTablesList()
 .parallelStream()
 .map(tableName -> ProtobufUtil.toTableName(tableName))
 .collect(Collectors.toList());


{quote}
Get the RSGroupInfo which has 9 RS and 20k tables, the time cost reduced from 6038 ms to 684 ms.



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