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Posted to notifications@iotdb.apache.org by "刘珍 (Jira)" <ji...@apache.org> on 2023/02/20 06:06:00 UTC
[jira] [Created] (IOTDB-5557) [ metadata ] The metadata query results are inconsistent
刘珍 created IOTDB-5557:
-------------------------
Summary: [ 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: Yukun Zhou
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!
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