[jira] [Created] (HUDI-657) It's lots of ClientUtils.createMetaClient when write to hudi

["Hong Shen (Jira)" <ji...@apache.org>]

Hong Shen created HUDI-657:
------------------------------

             Summary: It's lots of ClientUtils.createMetaClient when write to hudi
                 Key: HUDI-657
                 URL: https://issues.apache.org/jira/browse/HUDI-657
             Project: Apache Hudi (incubating)
          Issue Type: Bug
            Reporter: Hong Shen


When I write data to hudi, I find it's lots of loading table properties log, and each take  about 75ms, like below. 

{code}
20/03/05 09:20:32.379 INFO FSUtils: Hadoop Configuration: fs.defaultFS: [file:///], Config:[Configuration: core-default.xml, core-site.xml, mapred-default.xml, mapred-site.xml, yarn-default.xml, yarn-site.xml], FileSystem: [org.apache.hadoop.fs.aliyun.oss.AliyunOSSFileSystem@563f38c4]
20/03/05 09:20:32.431 INFO HoodieTableConfig: Loading table properties from oss://shenhong-test/mr_100_100_100/.hoodie/hoodie.properties
20/03/05 09:20:32.453 INFO HoodieTableMetaClient: Finished Loading Table of type MERGE_ON_READ(version=1) from oss://shenhong-test/mr_100_100_100

{code}

It's seems we have to create HoodieTableMetaClient when we use it.  but it's not need to do that, eg, when we call  getHoodieTable, it transfer metaClient, but the constructed function in HoodieTable still createMetaClient .

{code}
public static <T extends HoodieRecordPayload> HoodieTable<T> getHoodieTable(HoodieTableMetaClient metaClient,
 HoodieWriteConfig config, JavaSparkContext jsc) {
 switch (metaClient.getTableType()) {
 case COPY_ON_WRITE:
 return new HoodieCopyOnWriteTable<>(config, jsc);
 case MERGE_ON_READ:
 return new HoodieMergeOnReadTable<>(config, jsc);
 default:
 throw new HoodieException("Unsupported table type :" + metaClient.getTableType());
 }
}

{code}

{code}
  protected HoodieTable(HoodieWriteConfig config, JavaSparkContext jsc) {
    this.config = config;
    this.hadoopConfiguration = new SerializableConfiguration(jsc.hadoopConfiguration());
    this.viewManager = FileSystemViewManager.createViewManager(new SerializableConfiguration(jsc.hadoopConfiguration()),
        config.getViewStorageConfig());
    this.metaClient = ClientUtils.createMetaClient(jsc, config, true);
    this.index = HoodieIndex.createIndex(config, jsc);
  }

{code}

 I can optimize it if it need.




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