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Apache IoTDB
diff 计算一个设备的差值没问题, 要按每个设备分组,然后计算差值就不行。有别的方式吗? 或者后面会不会支持, 表模式下面
CHN doc: https://timechor.feishu.cn/docx/AugedrYLqoybsbxzgEZc2eTinTg?from=from_copylink
025-04-11 10:10:16,685 [main] ERROR o.a.i.c.ServerCommandLine:63 - Failed to execute system command org.apache.iotdb.commons.exception.runtime.ThriftSerDeException: Read TConsensusGroupId failed: org.apache.thrift.transport.TTransportException: Cannot read. Remote side has closed. Tried to read 1 bytes, but only got...
Bumps org.slf4j:slf4j-api from 2.0.9 to 2.0.17. [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) You can trigger a rebase of this PR by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- Dependabot commands...
Bumps [org.java-websocket:Java-WebSocket](https://github.com/TooTallNate/Java-WebSocket) from 1.5.4 to 1.5.7. Release notes Sourced from org.java-websocket:Java-WebSocket's releases. Release 1.5.7 Notable changes Breaking Changes PR 1399 - Have connectBlocking clean up after a timeout Bugs Fixed...
存储一条数据里包含code(32为字符串),remark(普通字符串)和10个数值字段 数据量在5000万条记录以上。 现在想通过code值进行查询,如何设计库表能支持快速查询?
集群部署问题
docker集群部署,后面想再加节点,有几个问题: (1)可以用集群方式先部署一个节点,后期有需要不断扩容吗? (2)增加直接通过docker-compose配置吗? (3)增加节点,需要修改schema_replication_factor和data_replication_factor吗,然后重启?
WAL积压严重
部署IOTDB 3C3D模式后,批量写入和单条写入wal积压严重,这个要怎么优化
能否出一个版本对照表,文档中没有提到flink-sql-iotdb-connector的依赖项,我只在案例中找到支持1.17。