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[Bug] Error WALBuffer....WAL-Recover Fail to allocate wal node....OutOfMemoryError: Cannot reserve 16777216 bytes of direct buffer memory (allocated: 469771426, limit: 471859200)
Search before asking
- [X] I searched in the issues and found nothing similar.
Version
1.3.0 3C3D
Describe the bug and provide the minimal reproduce step
We upped the JVM memory and still reported this error
What did you expect to see?
Cluster running properly
What did you see instead?
We can expand the memory
Anything else?
No response
Are you willing to submit a PR?
- [X] I'm willing to submit a PR!
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
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。
如果从新部署的情况下，数据库database太多的话还会不会出现上面的问题？ @HTHou
新部署的话 database太多时会拒绝掉新的 data region 的创建，从而避免这个问题。