Apache BookKeeper 4.8.1 发布，低延迟的存储系统

Apache BookKeeper 是一个针对实时工作负载优化的可扩展、高容错和低延迟的存储服务，已作为基础存储服务被用于构建各种可靠的服务，同时也是 Apache DistributedLog 的日志段存储和 Apache Pulsar 的消息存储。

Apache BookKeeper 4.8.1 已发布，更新亮点：

• Use default metrics registry in Prometheus exporter

• Don’t cache Bookie hostname DNS resolution forever

• Reduce stack traces in logs for common cases

• Ledger deletion racing with flush can cause a ledger index to be resurrected

• EntryMemTable.newEntry retains reference to passed ByteBuffer array, can cause corruption on journal replay

具体更新细节可查阅：

• https://bookkeeper.apache.org/docs/4.8.1/overview/releaseNotes/

下载地址：

• https://bookkeeper.apache.org/releases/

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