There are several different questions here.
YARN , - S3 ?
: LinkedIn Samza , http://downloads. Samza , hdf, :// , .
, , .
YARN ?
.
" ", . filesytem: (), , . () , - O (1). , ,... , HBase append().
MapR , Redhat GlusterFS; IBM EMC . , HDFS; , FS ( - , , Hortonworks Cloudera).
YARN, FS.
, FS , - . HBase - .
- Microsoft Azure Storage , FS () s . Azure HDFS.
- Google 1 2017 , GCS . , ; .
- Amazon EMR s3 , (a) () , HBase .
- S3- ASF, S3a, . , , ; s3guard, dynamo s3guard, ( , ()).
HDFS?
, !
, API. Apache Bigtop, . HBase Accumulo, : Mapreduce, Hive, spark, Flink.
Hadoop common-dev bigtop .