[wip][core]JindoFileIO support cache using JindoCache #6949
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@timmyyao CREATE CATALOG paimon_catalog WITH (
'type' = 'paimon',
'metastore' = 'hive',
'warehouse' = 'oss://xxxx.oss-dls.aliyuncs.com/user/hive/warehouse'
); |
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Purpose
We tend to persist files of Paimon table on object storage such as S3 and OSS. However the throughput or latency of such storage is usually limited, making IO performance become the bottleneck in ETL or OLAP occasions with high concurrency. Thus we introduce cache when FileIO visits files within a Paimon table. The solution is to support JindoCache in JindoFileIO, which is a distributed filesystem cache system. And table-level cache policy is implemented, which can be supported by REST server such as DLF.