- Package:
- munin-plugins-core
- Source:
- munin
- Submitter:
- root
- Date:
- 2021-04-27 16:09:05 UTC
- Severity:
- important
This bug applies to all "aspects" of the munnin "varnish_" plugin. None of them produce any data in their graphs OOTB on Debian 10. fwiw, `varnishstat` clearly *does* have output for 'uptime': ``` root@disp7450:~# varnishstat -x | grep -iC4 uptime <?xml version="1.0"?> <varnishstat timestamp="2020-05-05T22:49:15"> <stat> <name>MGT.uptime</name> <value>4961</value> <flag>c</flag> <format>d</format> <description>Management process uptime</description> </stat> <stat> <name>MGT.child_start</name> <value>1</value> -- <format>i</format> <description>stat summ operations</description> </stat> <stat> <name>MAIN.uptime</name> <value>4961</value> <flag>c</flag> <format>d</format> <description>Child process uptime</description> </stat> <stat> <name>MAIN.sess_conn</name> <value>0</value> root@disp7450:~# ``` Could this be an issue with varnish changing from v5 to v6 from Debian 9 to Debian 10? * https://packages.debian.org/source/stretch/varnish * https://packages.debian.org/source/buster/varnish
I just confirmed that this issue also exists for Debian 9: ``` user@disp5874:~$ sudo su - root@disp5874:~# cat /etc/issue Debian GNU/Linux 9 \n \l root@disp5874:~# apt-get install varnish munin ... root@disp5874:~# echo -e '\n[varnish*]\nuser root\n' > /etc/munin/plugin-conf.d/z-varnish root@disp5874:~# munin-run --debug --pidebug varnish_uptime # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_uptime' root@disp5874:~# vim /usr/share/munin/plugins/varnish_ root@disp5874:~# munin-run --debug --pidebug varnish_uptime # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_uptime' Error: uptime not part of varnishstat. root@disp5874:~# ~ ``` And here's the rest of the objects. Note that varnish_memory_usage actually does get some of its values; most don't. ``` root@disp5874:~# munin-run --debug --pidebug varnish_objects # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_objects' Error: n_objecthead not part of varnishstat. Error: n_objcore not part of varnishstat. Error: n_object not part of varnishstat. root@disp5874:~# munin-run --debug --pidebug varnish_backend_traffic # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_backend_traffic' Error: backend_conn not part of varnishstat. Error: backend_reuse not part of varnishstat. Error: backend_fail not part of varnishstat. Error: backend_recycle not part of varnishstat. Error: backend_req not part of varnishstat. Error: backend_unused not part of varnishstat. Error: backend_unhealthy not part of varnishstat. Error: backend_busy not part of varnishstat. root@disp5874:~# munin-run --debug --pidebug varnish_bad # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_bad' Error: n_objoverflow not part of varnishstat. SMA_s0_c_fail.value 0 SMA_Transient_c_fail.value 0 Error: n_wrk_failed not part of varnishstat. Error: n_wrk_lqueue not part of varnishstat. Error: client_drop not part of varnishstat. Error: client_drop_late not part of varnishstat. Error: backend_unhealthy not part of varnishstat. Error: accept_fail not part of varnishstat. Error: fetch_failed not part of varnishstat. Error: n_wrk_drop not part of varnishstat. Error: n_wrk_max not part of varnishstat. Error: backend_busy not part of varnishstat. Error: esi_warnings not part of varnishstat. Error: losthdr not part of varnishstat. Error: esi_errors not part of varnishstat. root@disp5874:~# munin-run --debug --pidebug varnish_expunge # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_expunge' Error: n_expired not part of varnishstat. Error: n_lru_nuked not part of varnishstat. root@disp5874:~# munin-run --debug --pidebug varnish_hit_rate # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_hit_rate' Error: client_req not part of varnishstat. Error: cache_hit not part of varnishstat. Error: cache_miss not part of varnishstat. Error: cache_hitpass not part of varnishstat. root@disp5874:~# munin-run --debug --pidebug varnish_memory_usage # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_memory_usage' Error: sma_nbytes not part of varnishstat. Error: sms_nbytes not part of varnishstat. SMA_Transient_g_bytes.value 0 SMA_s0_g_bytes.value 0 Error: sm_balloc not part of varnishstat. SMA_Transient_g_space.value 0 SMA_s0_g_space.value 268435456 root@disp5874:~# munin-run --debug --pidebug varnish_objects # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_objects' Error: n_objecthead not part of varnishstat. Error: n_object not part of varnishstat. Error: n_objcore not part of varnishstat. root@disp5874:~# munin-run --debug --pidebug varnish_request_rate # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_request_rate' Error: client_req not part of varnishstat. Error: backend_conn not part of varnishstat. Error: cache_hit not part of varnishstat. Error: client_conn not part of varnishstat. Error: cache_hitpass not part of varnishstat. Error: cache_miss not part of varnishstat. Error: s_pipe not part of varnishstat. Error: backend_unhealthy not part of varnishstat. Error: s_pass not part of varnishstat. root@disp5874:~# munin-run --debug --pidebug varnish_threads # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_threads' Error: n_wrk_max not part of varnishstat. Error: n_wrk_drop not part of varnishstat. Error: n_wrk_failed not part of varnishstat. Error: n_wrk_overflow not part of varnishstat. Error: n_wrk_create not part of varnishstat. Error: n_wrk not part of varnishstat. root@disp5874:~# munin-run --debug --pidebug varnish_transfer_rates # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_transfer_rates' Error: s_hdrbytes not part of varnishstat. Error: s_bodybytes not part of varnishstat. root@disp5874:~# munin-run --debug --pidebug varnish_uptime # Processing plugin configuration from /etc/munin/plugin-conf.d/munin-node # Processing plugin configuration from /etc/munin/plugin-conf.d/z-varnish # Setting /rgid/ruid/ to /123/0/ # Setting /egid/euid/ to /123 123/0/ # Setting up environment # About to run '/etc/munin/plugins/varnish_uptime' Error: uptime not part of varnishstat. root@disp5874:~# ``` And a subset of `varnihsstat -x` ``` root@disp5874:~# varnishstat -x | grep -EiC4 'uptime|SMA' <?xml version="1.0"?> <varnishstat timestamp="2020-05-05T23:16:33"> <stat> <type>MAIN</type> <name>uptime</name> <value>1194</value> <flag>c</flag> <format>d</format> <description>Child process uptime</description> </stat> <stat> <type>MAIN</type> <name>sess_conn</name> -- <description>Overflowed VSM space</description> </stat> <stat> <type>MGT</type> <name>uptime</name> <value>1194</value> <flag>c</flag> <format>d</format> <description>Management process uptime</description> </stat> <stat> <type>MGT</type> <name>child_start</name> -- </stat> <stat> <type>MEMPOOL</type> <ident>busyobj</ident> <name>toosmall</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Too small to recycle</description> </stat> <stat> <type>MEMPOOL</type> <ident>busyobj</ident> -- </stat> <stat> <type>MEMPOOL</type> <ident>req0</ident> <name>toosmall</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Too small to recycle</description> </stat> <stat> <type>MEMPOOL</type> <ident>req0</ident> -- </stat> <stat> <type>MEMPOOL</type> <ident>sess0</ident> <name>toosmall</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Too small to recycle</description> </stat> <stat> <type>MEMPOOL</type> <ident>sess0</ident> -- </stat> <stat> <type>MEMPOOL</type> <ident>req1</ident> <name>toosmall</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Too small to recycle</description> </stat> <stat> <type>MEMPOOL</type> <ident>req1</ident> -- </stat> <stat> <type>MEMPOOL</type> <ident>sess1</ident> <name>toosmall</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Too small to recycle</description> </stat> <stat> <type>MEMPOOL</type> <ident>sess1</ident> -- <format>i</format> <description>Pool ran dry</description> </stat> <stat> <type>SMA</type> <ident>s0</ident> <name>c_req</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Allocator requests</description> </stat> <stat> <type>SMA</type> <ident>s0</ident> <name>c_fail</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Allocator failures</description> </stat> <stat> <type>SMA</type> <ident>s0</ident> <name>c_bytes</name> <value>0</value> <flag>c</flag> <format>B</format> <description>Bytes allocated</description> </stat> <stat> <type>SMA</type> <ident>s0</ident> <name>c_freed</name> <value>0</value> <flag>c</flag> <format>B</format> <description>Bytes freed</description> </stat> <stat> <type>SMA</type> <ident>s0</ident> <name>g_alloc</name> <value>0</value> <flag>g</flag> <format>i</format> <description>Allocations outstanding</description> </stat> <stat> <type>SMA</type> <ident>s0</ident> <name>g_bytes</name> <value>0</value> <flag>g</flag> <format>B</format> <description>Bytes outstanding</description> </stat> <stat> <type>SMA</type> <ident>s0</ident> <name>g_space</name> <value>268435456</value> <flag>g</flag> <format>B</format> <description>Bytes available</description> </stat> <stat> <type>SMA</type> <ident>Transient</ident> <name>c_req</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Allocator requests</description> </stat> <stat> <type>SMA</type> <ident>Transient</ident> <name>c_fail</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Allocator failures</description> </stat> <stat> <type>SMA</type> <ident>Transient</ident> <name>c_bytes</name> <value>0</value> <flag>c</flag> <format>B</format> <description>Bytes allocated</description> </stat> <stat> <type>SMA</type> <ident>Transient</ident> <name>c_freed</name> <value>0</value> <flag>c</flag> <format>B</format> <description>Bytes freed</description> </stat> <stat> <type>SMA</type> <ident>Transient</ident> <name>g_alloc</name> <value>0</value> <flag>g</flag> <format>i</format> <description>Allocations outstanding</description> </stat> <stat> <type>SMA</type> <ident>Transient</ident> <name>g_bytes</name> <value>0</value> <flag>g</flag> <format>B</format> <description>Bytes outstanding</description> </stat> <stat> <type>SMA</type> <ident>Transient</ident> <name>g_space</name> <value>0</value> <flag>g</flag> -- <description>Lock Operations</description> </stat> <stat> <type>LCK</type> <ident>sma</ident> <name>creat</name> <value>2</value> <flag>c</flag> <format>i</format> <description>Created locks</description> </stat> <stat> <type>LCK</type> <ident>sma</ident> <name>destroy</name> <value>0</value> <flag>c</flag> <format>i</format> <description>Destroyed locks</description> </stat> <stat> <type>LCK</type> <ident>sma</ident> <name>locks</name> <value>0</value> <flag>c</flag> <format>i</format> root@disp5874:~# ```
Yes, the varnish_ plugin in the Debian munin package is totally useless because it targets Varnish 3. Debian uses Varnish 6, hence the varnish5_ plugin from munin-monitoring is needed: https://github.com/munin-monitoring/contrib/tree/master/plugins/varnish