Sponsored Content
Top Forums UNIX for Advanced & Expert Users Application showing "Connection Time Out" very often Post 303044590 by anaigini45 on Thursday 27th of February 2020 04:53:30 AM
Old 02-27-2020
Application showing "Connection Time Out" very often

Hi,


We have a web serveer running on Apache-Tomcat-6.0.32. For 2 months continuously, we noticed that the app on this server setup has been frequently sending out intermittent "Connection Time Out" issues.
On the OS side, I investigated a lot of things,



1) tcpdump : did not find anything suspicious (no large flooding of suspicious IP, etc)
2) In the apache access_log nothing suspicious either.
3) netstat -an, tulpn : No timeout/dead connection
4) telnet to port 80 is OK


Thus, my teammate concluded that it could be a bug in the tomcat version 6.0.32 itself. Is this possible/true? How can we confirm this?
We use "Uptime" as a monitoring tool, and it sends updates every 3 mins. Whereas other monitoring tools send alerts every 5 mins or more, and do not show the "Connection Time Out" problem.
Is "Uptime" an unstable monitoring tool?
 

8 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

add seconds to: date"|"time"|"HHMMSS

Hey all, I have a shell that invokes a AWK. In this AWK i want invoke a function that receives 3 parameters: date: 20080831 time: 235901 duration: 00023 that function receive this 3 parameters and sum to this value two more seconds: 2008083123590100025 Remember that in case that... (3 Replies)
Discussion started by: anaconga
3 Replies

2. Shell Programming and Scripting

How to remove "New line characters" and "spaces" at a time

Dear friends, following is the output of a script from which I want to remove spaces and new-line characters. Example:- Line1 abcdefghijklmnopqrstuvwxyz Line2 mnopqrstuvwxyzabcdefghijkl Line3 opqrstuvwxyzabcdefdefg Here in above example, at every starting line there is a “tab” &... (4 Replies)
Discussion started by: anushree.a
4 Replies

3. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

4. Linux

Showing "permission denied" when trying to login in - Montavista Linux

Hello friends, I have scratched my system and after that when I am trying to access the console via root login it's failing with an error message of "permission denied". I am able to access the other login, I am having only problem with root and some other user login. I am using an telnet... (2 Replies)
Discussion started by: sanoop
2 Replies

5. UNIX for Advanced & Expert Users

Showing "permission denied" when trying to login in - Montavista Linux

Hello friends, I have scratched my system and after that when I am trying to access the console via root login it's failing with an error message of "permission denied". I am able to access the other login, I am having only problem with root and some other user login. I am using an telnet... (7 Replies)
Discussion started by: sanoop
7 Replies

6. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies

7. UNIX for Advanced & Expert Users

"sudo su -" showing lot of information on OpenLDAP

Hello, I have configured new LDAP and new LDAP clients. When I do "sudo su -", it shows me lot of information, which is not required on screen. I am not sure, if any debug mode is enabled or from where it can be turned off. Please suggest, if it is know for you. -bash-3.2$ sudo su - sudo:... (8 Replies)
Discussion started by: solaris_1977
8 Replies

8. Solaris

Ipadm showing "/?" in ADDROBJ on S11 local zone

Hi! I have a Solaris 11 local zone, everything is running fine, BUT, when I issue an "ipadm show-addr" from inside the local zone I get the following: root@xxxxxxx:/var/opt# ipadm show-addr ADDROBJ TYPE STATE ADDR lo0/? inherited ok 127.0.0.1/8... (2 Replies)
Discussion started by: rtmg
2 Replies
OCF_HEARTBEAT_TOMCAT(7) 					OCF resource agents					   OCF_HEARTBEAT_TOMCAT(7)

NAME
ocf_heartbeat_tomcat - Manages a Tomcat servlet environment instance SYNOPSIS
tomcat [start | stop | status | monitor | meta-data | validate-all] DESCRIPTION
Resource script for Tomcat. It manages a Tomcat instance as a cluster resource. SUPPORTED PARAMETERS
tomcat_name The name of the resource, added as a Java parameter in JAVA_OPTS: -Dname=<tomcat_name> to Tomcat process on start. Used to ensure process is still running and must be unique. (unique, optional, string, no default) script_log Log file, used during start and stop operations. (unique, optional, string, no default) tomcat_stop_timeout Time-out for stop operation. DEPRECATED (optional, integer, no default) tomcat_suspend_trialcount Maximum number of times to retry stop operation before suspending and killing Tomcat. DEPRECATED. Does not retry. (optional, integer, no default) tomcat_user The user who starts Tomcat. (optional, string, default "root") statusurl URL for state confirmation. (optional, string, no default) max_stop_time Number of seconds to wait during a stop before drastic measures (force kill) are used on the tomcat process. This number MUST be less than your cluster stop timeout for the resource. The default value is five seconds before the timeout value of stop operation. When it is over this value, it stops a process in kill commands. This parameter is only effective on Tomcat 6 or later. (optional, integer, no default) java_home Home directory of Java. (required, string, no default) java_opts Java JVM options used on start and stop. (optional, string, no default) catalina_home Home directory of Tomcat. (required, string, no default) catalina_base Instance directory of Tomcat (unique, optional, string, no default) catalina_out Log file name of Tomcat (unique, optional, string, no default) catalina_pid A PID file name for Tomcat. (unique, optional, string, no default) tomcat_start_script Absolute path to the custom tomcat start script to use. (optional, string, no default) tomcat_start_opts Tomcat start options. (optional, string, no default) catalina_opts Catalina options, for the start operation only. (optional, string, no default) catalina_tmpdir Temporary directory of Tomcat (unique, optional, string, no default) catalina_rotate_log Rotate catalina.out flag. (optional, boolean, default NO) catalina_rotatetime catalina.out rotation interval (seconds). (optional, integer, no default) java_endorsed_dirs Java_endorsed_dirs of tomcat (unique, optional, string, no default) logging_config Logging_config of tomcat (unique, optional, string, no default) logging_manager Logging_manager of tomcat (unique, optional, string, no default) SUPPORTED ACTIONS
This resource agent supports the following actions (operations): start Starts the resource. Suggested minimum timeout: 60s. stop Stops the resource. Suggested minimum timeout: 120s. status Performs a status check. Suggested minimum timeout: 60. monitor Performs a detailed status check. Suggested minimum timeout: 30s. Suggested interval: 10s. meta-data Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5s. validate-all Performs a validation of the resource configuration. Suggested minimum timeout: 5. EXAMPLE
The following is an example configuration for a tomcat resource using the crm(8) shell: primitive p_tomcat ocf:heartbeat:tomcat params java_home=string catalina_home=string op monitor depth="0" timeout="30s" interval="10s" SEE ALSO
http://www.linux-ha.org/wiki/tomcat_(resource_agent) AUTHOR
Linux-HA contributors (see the resource agent source for information about individual authors) resource-agents UNKNOWN 06/09/2014 OCF_HEARTBEAT_TOMCAT(7)
All times are GMT -4. The time now is 03:42 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy