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                                            Haonan

[Bug] 表模型无法在非集群模式下插入数据

可以执行一下 show variables，看看展示的结果

[Bug] 表模型无法在非集群模式下插入数据

尝试了一下没有复现，可以重新部署一下再试试。可以再提供一下 logs 下的报错日志。

[Bug] 表模型无法在非集群模式下插入数据

如果能帮忙发一下logs的所有报错日志，我们可以定位一下错误提示不对的原因

Query : What are the upgrade plans on lz4-java for vulnerability CVE-2021-3520 on lz4

Well, it seems that the maintainers of this repo are not active anymore. A new release from a fork repo may be the best solution for now. See discussion in...

Update `lz4-java` with `LZ4 v1.10.0`

Well, it seems that the maintainers of this repo are not active anymore. A new release from a fork repo may be the best solution for now. See discussion in...

新装win11系统，Java安装成功，运行start-standalone.bat闪退

https://github.com/apache/iotdb/pull/15350 修复了wmic不能用的问题，不更新版本的情况下可以根据PR手动修改相关的脚本

使用spark2.4.0-cdh6.3.2版本去将数据查出来再写入2.1.1-cdh6.3.2，jar包冲突，可有好的解决方法

可以用shade https://github.com/apache/iotdb-extras/blame/b4953d1c6b54110d26f3c4c6acca04d046265c5e/connectors/spark-iotdb-connector/pom.xml#L115-L137

[Bug] device路径中包含关键字root， show devices 语句返回该device时，root未使用反引号引用

@lancelly

[Bug] Error WALBuffer....WAL-Recover Fail to allocate wal node....OutOfMemoryError: Cannot reserve 16777216 bytes of direct buffer memory (allocated: 469771426, limit: 471859200)

It may happen when too many databases created. A limitation added in v1.3.2 can avoid this issue. https://github.com/apache/iotdb/pull/12431

[Bug] Error WALBuffer....WAL-Recover Fail to allocate wal node....OutOfMemoryError: Cannot reserve 16777216 bytes of direct buffer memory (allocated: 469771426, limit: 471859200)

> 升级到1.3.2最新版本datanode还是报错，这个问题有修复吗？ 1.3.2 从新部署的情况下可以避免这个问题，但是有数据的情况下升级是不行的。database 和 data region 的数量太多导致的，建议调整建模，不要创建过多的 database。