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Jinrui Zhang commented on IOTDB-5557: ------------------------------------- DataNode should be ready (visible to client) until all the replays of metadata operations finish > [ metadata ] The metadata query results are inconsistent > -------------------------------------------------------- > > Key: IOTDB-5557 > URL: https://issues.apache.org/jira/browse/IOTDB-5557 > Project: Apache IoTDB > Issue Type: Bug > Components: Core/Schema Manager, mpp-cluster > Affects Versions: 1.1.0-SNAPSHOT > Reporter: 刘珍 > Assignee: Song Ziyang > Priority: Blocker > Attachments: image-2023-02-20-14-04-32-611.png > > > master : 0219_0cd4461 > 启动集群,log_datanode_all.log出现enjoy后,查询元数据,出现查询结果不一致(动态增加,直到全部元数据加载到内存)。 > 期望:只要集群已经开始提供查询服务,就要保证查询结果的一致性。 > 测试环境: > 1. 192.168.10.76 48cpu 384GB 内存 > 元数据信息:1db,1万设备,600序列/dev。 > ConfigNode: > MAX_HEAP_SIZE="8G" > DataNode: > MAX_HEAP_SIZE="256G" > MAX_DIRECT_MEMORY_SIZE="32G" > COMMON配置 > time_partition_interval=60480000000 > query_timeout_threshold=36000000 > enable_seq_space_compaction=false > enable_unseq_space_compaction=false > enable_cross_space_compaction=false > 2. 清操作系统缓存,启动数据库,出现enjoy后,执行count devices查看结果 > cat check_device_count.sh > while true > do > v_start=`grep enjoy logs/log_datanode_all.log|wc -l` > if [[ ${v_start} = "1" ]];then > for i in {1..100} > do > ./sbin/start-cli.sh -h 192.168.10.76 -e "count devices;" > >> dev_count_during_start.out > done > break > fi > done > 下图结果,可以看出,count devices的结果在动态增加,直至10000,完全加载到内存中: > !image-2023-02-20-14-04-32-611.png! -- This message was sent by Atlassian Jira (v8.20.10#820010)