Set the File Descriptor Limit to at Least 15,000 to Accommodate Cluster Growth

中级别 1自动化cockroachdb

说明

CockroachDB can use a large number of open file descriptors, often more than is available by default. Therefore, note the following recommendations. For each CockroachDB node: - At a minimum, the file descriptors limit must be 1956 (1700 per store plus 256 for networking). If the limit is below this threshold, the node will not start. - It is recommended to set the file descriptors limit to unlimited; The benchmark rates this recommendation Manual; the automated check covers its objective pass criterion. Reads the hard "Max open files" limit of the running cockroach process; it must be unlimited or at least 15000.

检查方式

审计方法: Shell 命令

shell

pid=$(pgrep -o -x cockroach) || exit 1; awk '/^Max open files/ {print ($5 == "unlimited" || $5 + 0 >= 15000) ? "compliant" : "hard limit " $5}' /proc/$pid/limits

预期输出: compliant

修复方式

修复方法: 操作指南或基础设施补丁

Set LimitNOFILE=35000 (at least 15000) in the [Service] section of cockroach.service (or a hard nofile limit in /etc/security/limits.conf for non-systemd setups), raise fs.file-max if needed, then restart the node.

属性

操作系统: 任意
标签: cockroachdbos
参考: CIS CockroachDB v25.x Benchmark v1.0.0 - 2.7 Set the File Descriptor Limit to at Least 15,000 to Accommodate Cluster Growth

检查本机

请在您有权审计的机器上运行此命令。扫描为只读操作。

shell

tmaegis scan --target cockroachdb