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cloudcaptainsh / cloudcaptain

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Unable to configure file descriptors for tomcat application #254

Closed jtheuer closed 3 years ago

jtheuer commented 3 years ago

We tried to set the file descriptors to a higher value according to https://boxfuse.com/docs/payloads/tomcat#sysctl

Config file src/main/webapp/WEB-INF/sysctl.conf with the conent:

# double the size of the default
fs.file-max = 8192

However, in the charts we plot to CloudWatch we still see the original value (~4096) in total:

image

Any ideas what could go wrong here? We also had the issue with an older dropwizard stack so it might not be tomcat-specific.

axelfontaine commented 3 years ago

Thanks for reporting. We'll look into this and get back to you.

jtheuer commented 3 years ago

This might be helpful, just saw it in the log output:

07:42:33.276 i-09af9f04e8ec5f9ea -> i-09af9f04e8ec5f9ea => Creating 1 GB /tmp filesystem ...
07:42:33.276 i-09af9f04e8ec5f9ea -> i-09af9f04e8ec5f9ea => [    2.784036] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x240939f1bb2, max_idle_ns: 440795263295 ns
07:42:33.276 i-09af9f04e8ec5f9ea -> i-09af9f04e8ec5f9ea => [    2.786442] clocksource: Override clocksource tsc is not currently HRT compatible - deferring
07:42:33.276 i-09af9f04e8ec5f9ea -> i-09af9f04e8ec5f9ea => Tuning kernel parameters ...
07:42:33.276 i-09af9f04e8ec5f9ea -> i-09af9f04e8ec5f9ea => sysctl: /etc/sysctl.conf: No such file or directory
jtheuer commented 3 years ago

@axelfontaine any chance for a fix here soon-ish? (New or old version)

axelfontaine commented 3 years ago

@jtheuer Thanks for your patience. This has now been fixed in v. 1.33.5.1506 of the client.