Apache by Zabbix Agent issues
Hi,
I've been struggling for several hours with setting up the apache template on one particular host, and now it's time to start begging for help
- other services on the host have been monitored for a couple of years now, networking/dns/communication with the Zabbix server is not the issue.
- I have verified the availability of the server-status page from the Zabbix server (on a different host in same network) and the agent the apache template is installed on
- What appears to be identical apache monitoring on 2 other hosts is running just fine. - no issues
This particular host is not tracking the apache data (no graphs) checking the logs on both hosts it appears that "Preprocessing" is failing even though the data is there:
Looking at just the BusyWorkers (all the variables fail)
Please take a look at the log items below, any help would be much appraciated!!
Honestly don't know if this is the same host, I can't find any real indication
I've been struggling for several hours with setting up the apache template on one particular host, and now it's time to start begging for help
- other services on the host have been monitored for a couple of years now, networking/dns/communication with the Zabbix server is not the issue.
- I have verified the availability of the server-status page from the Zabbix server (on a different host in same network) and the agent the apache template is installed on
- What appears to be identical apache monitoring on 2 other hosts is running just fine. - no issues
This particular host is not tracking the apache data (no graphs) checking the logs on both hosts it appears that "Preprocessing" is failing even though the data is there:
Looking at just the BusyWorkers (all the variables fail)
Please take a look at the log items below, any help would be much appraciated!!
Code:
1641527:20230728:133035.737 error reason for "www.my_fake_server_name.com:apache.workers_total.busy" changed: Preprocessing failed for: {"Server":"nginx","Date":"Fri, 28 Jul 2023 17:30:35 GMT","Type":"text/html; charset=ISO-8859-1","...
1. Failed: cannot extract value from json by path "$.BusyWorkers": no data matches the specified path
Code:
1641517:20230728:133135.298 worker_preprocess_dep_items: FAIL Preprocessing failed for: {"Server":"nginx","Date":"Fri, 28 Jul 2023 17:31:35 GMT","Type":"text/html; charset=ISO-8859-1","...
1. Failed: cannot extract value from json by path "$.BusyWorkers": no data matches the specified path
1641517:20230728:133135.299 worker_preprocess_dep_items(): {"Server":"nginx","Date":"Fri, 28 Jul 2023 17:31:35 GMT","Type":"text/html; charset=ISO-8859-1","Length":1995,"Connection":"keep-alive","Vary":"Accept-Encoding","Encoding":"gzip","Server Version":"Apache/2.4.41 (Ubuntu) OpenSSL/1.1.1f mod_fcgid/2.3.9</dt>","Server MPM":"event</dt>","Server Built":"2023-03-08T17:32:54","Current Time":"Friday, 28-Jul-2023 17:31:35 UTC</dt>","Restart Time":"Friday, 28-Jul-2023 17:30:02 UTC</dt>"," Generation":"1</dt>","Parent Server MPM Generation":"0</dt>","Server uptime":" 1 minute 33 seconds</dt>","Server load":"0.17 0.20 0.14</dt>","Total accesses":"4 - Total Traffic: 21 kB - Total Duration: 3808</dt>","CPU Usage":"u.6 s.11 cu0 cs0 - .763% CPU load</dt>","Total FastCGI processes":1,"Process":"cgi_wrapper</b> (/var/www/cgi-bin/cgi_wrapper/cgi_wrapper)<br />","cache type":"<b>SHMCB</b>, shared memory: <b>512000</b> bytes, current entries: <b>5</b><br>subcaches: <b>32</b>, indexes per subcache: <b>88</b><br>time left on oldest entries' objects: avg: <b>249</b> seconds, (range: 249...249)<br>index usage: <b>0%</b>, cache usage: <b>0%</b><br>total entries stored since starting: <b>5</b><br>total entries replaced since starting: <b>0</b><br>total entries expired since starting: <b>0</b><br>total (pre-expiry) entries scrolled out of the cache: <b>0</b><br>total retrieves since starting: <b>0</b> hit, <b>0</b> miss<br>total removes since starting: <b>0</b> hit, <b>0</b> miss<br></td></tr>","ServerVersion":"nginx","Workers":{"waiting":0,"starting":0,"reading":0,"sending":0,"keepalive":0,"dnslookup":0,"closing":0,"logging":0,"finishing":0,"cleanup":0,"slot":0}}
Code:
root@monitor:/etc/zabbix# curl -get http://my_fake_server_ip/server-status-95mf873hgy0?auto my_fake_server_ip ServerVersion: Apache/2.4.41 (Ubuntu) OpenSSL/1.1.1f mod_fcgid/2.3.9 ServerMPM: event Server Built: 2023-03-08T17:32:54 CurrentTime: Friday, 28-Jul-2023 17:32:23 UTC RestartTime: Friday, 28-Jul-2023 17:30:02 UTC ParentServerConfigGeneration: 1 ParentServerMPMGeneration: 0 ServerUptimeSeconds: 141 ServerUptime: 2 minutes 21 seconds Load1: 0.23 Load5: 0.22 Load15: 0.15 Total Accesses: 35 Total kBytes: 111 Total Duration: 8447 CPUUser: .81 CPUSystem: .17 CPUChildrenUser: 0 CPUChildrenSystem: 0 CPULoad: .695035 Uptime: 141 ReqPerSec: .248227 BytesPerSec: 806.128 BytesPerReq: 3247.54 DurationPerReq: 241.343 BusyWorkers: 1 IdleWorkers: 49 Processes: 2 Stopping: 0 BusyWorkers: 1 IdleWorkers: 49 ConnsTotal: 0 ConnsAsyncWriting: 0 ConnsAsyncKeepAlive: 0 ConnsAsyncClosing: 0 Scoreboard: W_________________________________________________.................................................................................................... TLSSessionCacheStatus CacheType: SHMCB CacheSharedMemory: 512000 CacheCurrentEntries: 32 CacheSubcaches: 32 CacheIndexesPerSubcaches: 88 CacheTimeLeftOldestAvg: 247 CacheTimeLeftOldestMin: 201 CacheTimeLeftOldestMax: 259 CacheIndexUsage: 1% CacheUsage: 1% CacheStoreCount: 32 CacheReplaceCount: 0 CacheExpireCount: 0 CacheDiscardCount: 0 CacheRetrieveHitCount: 0 CacheRetrieveMissCount: 0 CacheRemoveHitCount: 0 CacheRemoveMissCount: 0
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