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Posted to notifications@iotdb.apache.org by "刘珍 (Jira)" <ji...@apache.org> on 2022/07/12 02:42:00 UTC

[jira] [Created] (IOTDB-3802) [ raft log ] Raft log takes up a lot of disk space

刘珍 created IOTDB-3802:
-------------------------

             Summary: [ raft log ] Raft log takes up a lot of disk space
                 Key: IOTDB-3802
                 URL: https://issues.apache.org/jira/browse/IOTDB-3802
             Project: Apache IoTDB
          Issue Type: Improvement
          Components: mpp-cluster
            Reporter: 刘珍
            Assignee: Song Ziyang
         Attachments: config.properties, image-2022-07-12-10-41-14-126.png

master_0711_d1dd425 
RatisConsensus ,3副本3C3D

benchmark写入完成（配置文件见附件），所有节点同步完成，执行flush。
raft log占用磁盘空间大：
4个dataregion的raft log分别是8.3GB/5.8GB/46GB/27GB
如果节点数/dataregion数比较多，磁盘占用会更大。需优化。
 !image-2022-07-12-10-41-14-126.png! 
复现流程
1. 192.168.10.62 /66 /68
schema_region_consensus_protocol_class=org.apache.iotdb.consensus.ratis.RatisConsensus
data_region_consensus_protocol_class=org.apache.iotdb.consensus.ratis.RatisConsensus
schema_replication_factor=3
data_replication_factor=3
max_waiting_time_when_insert_blocked=36000000
query_timeout_threshold=36000000

2. benchmark 配置见附件
约10.26小时
3. 写入完成执行flush



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