Monitoring Web Apps

[bobrivers]

Hi,

As stated into the roadmap, in the 1.4 version we will be able to monitor web apps. Is it already possible to do it with 1.3.2?

I'm not asking about "old" way (scripts), well at least I'm specting something were I can type an url (www.mysite.com.br/somepage.html), including authentication (as descibed into the roadmap).

If yes, were I can find some "how to".

TIA,

Bob

[Alexei]

This functionality is ready and will be released in 1.3.3.

[bbrendon]

Performing a full transaction like keynote would be really cool.

[bobrivers]

Using 1.3.3

Hi, nice work. I was anxious.

Well, I read the manual and I think that I was able to build a scenario with the required steps. But, it seems to be not working...

First I created a scenario called "test": application = test, name = testName with update interval of 5 secs. I select Firefox for linux and lynx (since I'm using RHEL AS 4).

I didn't created any variables. Then I added just one step: name = home, url = www.zabbix.com. No post, no required strings.

After saving it, in monitoring > web it shows me the scenario that I have created and it status is ok, but if I click over its name, the speed and response time are empty.

I tried to fill all the other fields. I tried to change the url (using http://www.zabbix.com/), but nothing worked...

It looks like that it isn't updated...

Am I missing something? Is it necessary to start something, like some kind of cron job...

TIA

Bob

[Alexei]

Did you compiled ZABBIXserver with option --with-libcurl? This is required for WEB monitoring!

[bobrivers]

libcurl version

Hi, yes. I compiled zabbix with "--with-libcurl". But, I didn't paid to much attention and only after you said, I looked into config.log and I was able to see that zabbix requires version 7.15.1 or newer.

The default version for RHEL4 is 7.12.x...

Right now I trying to update my curl. In fact I was able to do it to the 7.16.1 version. I am able to run it by command line, and when compiling zabbix it didn't complain about it:

configure:8517: checking for curl-config
configure:8535: found /usr/local/bin/curl-config
configure:8547: result: /usr/local/bin/curl-config
configure:8557: checking for the version of libcurl
configure:8564: result: 7.16.1
configure:8571: checking for libcurl >= version 7.15.1
configure:8584: result: yes
configure:8625: checking whether libcurl is usable
configure:8663: gcc -o conftest -g -O2 -I/usr/local/include conftest.c -L/usr/local/lib -lcurl -L/usr/kerberos/lib -lidn -lssl -lcrypto -ldl -lssl -lcrypto -lgssapi_krb5 -lkrb5 -lcom_err -lk5crypto -lresolv -ldl -lz -lz -lresolv -lnsl >&5
configure:8669: $? = 0
configure:8672: test -z || test ! -s conftest.err
configure:8675: $? = 0
configure:8678: test -s conftest
configure:8681: $? = 0
configure:8699: result: yes
configure:8712: checking for curl_free
configure:8769: gcc -o conftest -g -O2 -I/usr/local/include conftest.c -lresolv -lnsl -L/usr/local/lib -lcurl -L/usr/kerberos/lib -lidn -lssl -lcrypto -ldl -lssl -lcrypto -lgssapi_krb5 -lkrb5 -lcom_err -lk5crypto -lresolv -ldl -lz -lz >&5
configure:8775: $? = 0
configure:8778: test -z || test ! -s conftest.err
configure:8781: $? = 0
configure:8784: test -s conftest
configure:8787: $? = 0
configure:8799: result: yes

But, when I try to start the server, I receive the following error message:

zabbix_server: error while loading shared libraries: libcurl.so.4: cannot open shared object file: No such file or directory

Rigth now I'm "googling" the web in order to see if I get some help. Do you have any advice? Maybe a curl downgrade for 1.3.4?

TIA

Bob

[bobrivers]

It's working...

It's working... A simple

export LD_LIBRARY_PATH=/usr/local/lib 

resolved the problem.

Now I have another problem, but I will open another topic. I think it's better...

[TarkanVeKurdu]

bobrivers I have the same issue. zabbix 1.3.3 is installed centos 4 . I have reinstalled curl and updated to latest version. also recompiled zabbix. All is ok when I check with ldd :


[root@monitor zabbix]# ldd /usr/bin/zabbix_server
libmysqlclient.so.14 => /usr/lib/mysql/libmysqlclient.so.14 (0xb7eab000)
libz.so.1 => /usr/lib/libz.so.1 (0xb7e9a000)
libcrypt.so.1 => /lib/libcrypt.so.1 (0xb7e6c000)
libnsl.so.1 => /lib/libnsl.so.1 (0xb7e56000)
libm.so.6 => /lib/tls/libm.so.6 (0xb7e33000)
libssl.so.4 => /lib/libssl.so.4 (0xb7dff000)
libcrypto.so.4 => /lib/libcrypto.so.4 (0xb7d16000)
libcurl.so.4 => /lib/libcurl.so.4 (0xb7ce0000)
libiksemel.so.3 => /usr/lib/libiksemel.so.3 (0xb7cd5000)
libresolv.so.2 => /lib/libresolv.so.2 (0xb7cc2000)
libc.so.6 => /lib/tls/libc.so.6 (0xb7b97000)
/lib/ld-linux.so.2 (0xb7fe9000)
libgssapi_krb5.so.2 => /usr/lib/libgssapi_krb5.so.2 (0xb7b83000)
libkrb5.so.3 => /usr/lib/libkrb5.so.3 (0xb7b1d000)
libcom_err.so.2 => /lib/libcom_err.so.2 (0xb7b1a000)
libk5crypto.so.3 => /usr/lib/libk5crypto.so.3 (0xb7af9000)
libdl.so.2 => /lib/libdl.so.2 (0xb7af5000)
libidn.so.11 => /usr/lib/libidn.so.11 (0xb7ac5000)
libgnutls.so.11 => /usr/lib/libgnutls.so.11 (0xb7a55000)
libgcrypt.so.11 => /usr/lib/libgcrypt.so.11 (0xb7a0b000)
libgpg-error.so.0 => /usr/lib/libgpg-error.so.0 (0xb7a07000)
[root@monitor zabbix]#



But somehow I cant get a result on web performance monitors. What could be the problem ?

My monitor properties are :

Application : Web
Name : Test_WEB
Update_Interval : 30
Agent : Mozilla
Status : Active
Variables : empty
STEPS :

Name : CNN
URL : http://www.cnn.com
Post: Empty
Timeout : 15
Result :empty


It gives result :

Step Speed Response time Response code Status
CNN - - - OK


What could be the problem here ?

Regards

[bobrivers]

hints

Hi,

That was the simptons (no data, just an OK) when curl was not working properly.

Did you checked to see if curl is working? Try to run "curl www.cnn.com" and see if you get some kind of response.

If yes, then try to recompile the zabbix agent and server. Before recompiling it, make sure to run a "make clean" and a "make distclean" in order do have everything cleaned.

After that you compiled it again, check the "config.log". Verify if it has an ok for curl tests (take a look at my previous messages). You must have a yes for the tests results.

If you do not get a result, try to erase the scenario and create a new one. And use a low refresh rate (so you will not wait to much).

These were the steps that I did.

Regards,

Bob

[maxence]

Curl version

Hello,


For information with Zabbix beta 1.3.3.

I'was getting issue with curl-7.16 on CentOS 4.
(the error was visible in the config.log).

It's working now with curl-7.15, I'm using the Fedora 5 package.
If you need them : http://centos.ate.info/zabbix/




Cheers