TMA-COCKROACHDB-2.7
Set the File Descriptor Limit to at Least 15,000 to Accommodate Cluster Growth
Beschreibung
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.
So wird geprüft
Prüfmethode: Shell-Befehl
pid=$(pgrep -o -x cockroach) || exit 1; awk '/^Max open files/ {print ($5 == "unlimited" || $5 + 0 >= 15000) ? "compliant" : "hard limit " $5}' /proc/$pid/limits- Erwartete Ausgabe
compliant
So wird behoben
Behebungsmethode: Anleitung oder Infrastruktur-Patch
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.
Eigenschaften
- Betriebssysteme
- Beliebig
- Tags
- cockroachdbos
- Referenz
- CIS CockroachDB v25.x Benchmark v1.0.0 - 2.7 Set the File Descriptor Limit to at Least 15,000 to Accommodate Cluster Growth
Diesen Host prüfen
Führen Sie dies auf einem Rechner aus, den Sie prüfen dürfen. Der Scan ist schreibgeschützt.
tmaegis scan --target cockroachdb