heesung-sn commented on code in PR #17820:
URL: https://github.com/apache/pulsar/pull/17820#discussion_r985158091
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/loadbalance/LinuxInfoUtils.java:
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@@ -72,6 +73,31 @@ public static boolean isCGroupEnabled() {
}
}
+ /**
+ * Get total cpu count.
+ * @return Total cpu count
+ */
+ public static int getTotalCpuCount() {
+ int totalCpuCount=0;
+ try {
+ String[] ranges =
readTrimStringFromFile(Paths.get(CGROUPS_CPU_CPUSET_CPUS)).split(",");
+ for (String range : ranges) {
+ if (!range.contains("-")) {
+ totalCpuCount++;
+ } else {
+ int dashIndex = range.indexOf('-');
+ int left = Integer.valueOf(range.substring(0, dashIndex));
+ int right = Integer.valueOf(range.substring(dashIndex +
1));
+ totalCpuCount += right - left + 1;
+ }
+ }
+ } catch (IOException e) {
+ log.warn("[LinuxInfo] Failed to read CPU counts from cgroups", e);
+ // Fallback to availableProcessors
Review Comment:
Also please confirm if this can fallback to the next cpu limit getter
logic,if it outputs 0 cpu count.
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