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| author | Federico Ceratto <federico.ceratto@gmail.com> | 2017-12-19 23:39:21 +0000 |
|---|---|---|
| committer | Federico Ceratto <federico.ceratto@gmail.com> | 2017-12-19 23:39:21 +0000 |
| commit | 61aedf201c2c4bf0e5aa4db32e74f4d860b88593 (patch) | |
| tree | bcf4f9a0cd8bc2daf38b2ff9f29bfcc1e5ed8968 /conf.d/health.d/tcp_mem.conf | |
| parent | New upstream version 1.8.0+dfsg (diff) | |
| download | netdata-61aedf201c2c4bf0e5aa4db32e74f4d860b88593.tar.xz netdata-61aedf201c2c4bf0e5aa4db32e74f4d860b88593.zip | |
New upstream version 1.9.0+dfsgupstream/1.9.0+dfsg
Diffstat (limited to 'conf.d/health.d/tcp_mem.conf')
| -rw-r--r-- | conf.d/health.d/tcp_mem.conf | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/conf.d/health.d/tcp_mem.conf b/conf.d/health.d/tcp_mem.conf new file mode 100644 index 000000000..6927d5765 --- /dev/null +++ b/conf.d/health.d/tcp_mem.conf @@ -0,0 +1,20 @@ +# +# check +# http://blog.tsunanet.net/2011/03/out-of-socket-memory.html +# +# We give a warning when TCP is under memory pressure +# and a critical when TCP is 90% of its upper memory limit +# + + alarm: tcp_memory + on: ipv4.sockstat_tcp_mem + os: linux + hosts: * + calc: ${mem} * 100 / ${tcp_mem_high} + units: % + every: 10s + warn: ${mem} > (($status >= $WARNING ) ? ( ${tcp_mem_pressure} * 0.8 ) : ( ${tcp_mem_pressure} )) + crit: ${mem} > (($status >= $CRITICAL ) ? ( ${tcp_mem_pressure} ) : ( ${tcp_mem_high} * 0.9 )) + delay: up 0 down 5m multiplier 1.5 max 1h + info: the amount of TCP memory as a percentage of its max memory limit + to: sysadmin |