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**hernan** · 14-08-2020, 16:23

Originally posted by hernan

Hello Guys, I have the following problem:

I have a JXM agent without connection. Here you have the environment:

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1) Zabbix Server ------- Zabbix Proxy/ Zabbix-JAVA-Gateway ---- Zabbix Agent
************************************

2) I checked on the Zabbix info the correct procedure to start a trace debug on the Java Gateway:
.
************************************
Debugging Java gateway

Zabbix Java gateway log file is:

/var/log/zabbix/zabbix_java_gateway.log
If you like to increase the logging, edit the file:

/etc/zabbix/zabbix_java_gateway_logback.xml
and change level="info" to "debug" or even "trace" (for deep troubleshooting):

<configuration scan="true" scanPeriod="15 seconds"> [...] <root level="info"> <appender-ref ref="FILE" /> </root> </configuration>
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.
3) I added the following lines on the my xml file:
.
*********************
<root level="TRACE">
<appender-ref ref="FILE" />
</root>
*********************
.
4) After that I restarted the Java-gateway and never received any info from the zabbix agent without any error:
.
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2020-08-14 09:55:18.659 [Thread-0] INFO com.zabbix.gateway.JavaGateway - Zabbix Java Gateway 4.4.10 (revision 4db30afc70) has stopped
2020-08-14 10:10:23.456 [main] INFO com.zabbix.gateway.JavaGateway - Zabbix Java Gateway 4.4.10 (revision 4db30afc70) has started
2020-08-14 10:10:23.460 [main] DEBUG c.z.gateway.ConfigurationManager - starting to parse configuration parameters
2020-08-14 10:10:23.461 [main] DEBUG c.z.gateway.ConfigurationManager - found pidFile configuration parameter with value'/var/run/zabbix/zabbix_java.pid'
2020-08-14 10:10:23.461 [main] DEBUG c.z.gateway.ConfigurationManager - received pidFile configuration parameter, daemonizing
2020-08-14 10:10:23.461 [main] DEBUG c.z.gateway.ConfigurationManager - found listenPort configuration parameter with value '10052'
2020-08-14 10:10:23.461 [main] DEBUG c.z.gateway.ConfigurationManager - found startPollers configuration parameter withvalue '5'
2020-08-14 10:10:23.461 [main] DEBUG c.z.gateway.ConfigurationManager - finished parsing configuration parameters
2020-08-14 10:10:23.463 [main] INFO com.zabbix.gateway.JavaGateway - listening on 0.0.0.0/0.0.0.0:10052
2020-08-14 10:10:23.465 [main] DEBUG com.zabbix.gateway.JavaGateway - created a thread pool of 5 pollers
************************
.
Can you help me with this issue?

Thanks in advance.

Regards.

Hi Guys,

1) I found the following procedure to run a manually request:
.
**************************************

Zabbix Community Area

https://zabbix.org/wiki/Docs/howto/zabbix_get_jmx

Join the friendly and open Zabbix community on our forums and social media platforms.

**************************************

2) After that I ran the command and I received the following error message:
.
**************************************
[zavatec@zbxproxy01 zabbix]$ ./zabbix_get_jmx localhost 10052 192.168.2.5 12345 'jmx["java.lang:type=Threading",ThreadCount]'
{"response":"failed","error":"No value for jmx_endpoint"}
**************************************
.
3) The I checked the log file and I found the following error message:
.
**************************************
2020-08-14 11:13:52.389 [pool-1-thread-1] DEBUG c.z.gateway.BinaryProtocolSpeaker - received the following data in reque
st: {"request": "java gateway jmx","conn": "192.168.2.5","port": 12345,"keys": ["jmx["java.lang:type=Threading",Thread
Count]"]}
2020-08-14 11:13:52.394 [pool-1-thread-1] WARN com.zabbix.gateway.SocketProcessor - error processing request: No value
for jmx_endpoint
2020-08-14 11:13:52.399 [pool-1-thread-1] DEBUG com.zabbix.gateway.SocketProcessor - error caused by
com.zabbix.gateway.ZabbixException: org.json.JSONException: No value for jmx_endpoint
at com.zabbix.gateway.JMXItemChecker.<init>(JMXItemCh ecker.java:69) ~[zabbix-java-gateway-4.4.10.jar:na]
at com.zabbix.gateway.SocketProcessor.run(SocketProce ssor.java:65) ~[zabbix-java-gateway-4.4.10.jar:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1149) [na:1.8.0_252]
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624) [na:1.8.0_252]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_252]
Caused by: org.json.JSONException: No value for jmx_endpoint
at org.json.JSONObject.get(JSONObject.java:354) ~[android-json-4.3_r3.1.jar:na]
at org.json.JSONObject.getString(JSONObject.java:514) ~[android-json-4.3_r3.1.jar:na]
at com.zabbix.gateway.JMXItemChecker.<init>(JMXItemCh ecker.java:65) ~[zabbix-java-gateway-4.4.10.jar:na]
... 4 common frames omitted
2020-08-14 11:13:52.400 [pool-1-thread-1] DEBUG c.z.gateway.BinaryProtocolSpeaker - sending the following data in respon
se: {"response":"failed","error":"No value for jmx_endpoint"}
2020-08-14 11:13:52.401 [pool-1-thread-1] DEBUG com.zabbix.gateway.SocketProcessor - finished processing incoming connec
tion
****************************************
.
4) The telnet ip / port is working propertly:
[zavatec@zbxproxy01 zabbix]$ telnet 192.168.2.5 12345
Trying 192.168.2.5...
Connected to 192.168.2.5.
Escape character is '^]'.

5) I have ping access to the JXM Server machine:
.
*****************************************
[zavatec@zbxproxy01 zabbix]$ ping 192.168.2.5
PING 192.168.2.5 (192.168.2.5) 56(84) bytes of data.
64 bytes from 192.168.2.5: icmp_seq=1 ttl=63 time=0.272 ms
64 bytes from 192.168.2.5: icmp_seq=2 ttl=63 time=0.350 ms
64 bytes from 192.168.2.5: icmp_seq=3 ttl=63 time=0.344 ms
64 bytes from 192.168.2.5: icmp_seq=4 ttl=63 time=0.370 ms
*****************************************
.
Can you help me with this issue?

Thanks in advance.

Regards.

**hernan** · 19-08-2020, 12:28

Hello, can you help me with this issue?

Thanks in avance.

Regards.

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