0028915: Not possible to start tomcat after use the dunning module

Notes
(0075015) alostale (manager) 2015-02-27 09:38 edited on: 2015-02-27 09:39	This problem occurs when the number of jobs to execute [1] is big enough. As reported in issue 0029089 activiti integration uses its own pool, among other stuff, when tomcat is started activiti loads the jobs to execute, when this number is big enough, this pool gets exhausted with connections that are in use and not yet closed trying to acquire a new connection. Because of default configuration of this pool, the maximum number of active connections is 8, and the behavior when the pool is exhausted is to wait indefinitely till one of the connections in use is released. This causes the process to be in a deadlock situation. When this occurs, tomcat start up never ends (or tomcat start timeout is reached). It is possible to see there are 8 (the maximum default) idle in transaction connections which executed this query [2]. --- [1] select count() from ACT_RU_JOB where (RETRIES_ > 0) and (DUEDATE_ is null or DUEDATE_ < now()) and (LOCK_OWNER_ is null or LOCK_EXP_TIME_ < now()) and (RETRIES_ > 0) [2] select from ACT_RU_JOB J WHERE J.EXECUTION_ID_ = $1

(0075019) hgbot (developer) 2015-02-27 10:05	Repository: erp/mods/org.openbravo.activiti Changeset: 9ce8cc16cb256dbc480cd116b949a6c454c07ae3 Author: Asier Lostalé <asier.lostale <at> openbravo.com> Date: Fri Feb 27 09:45:58 2015 +0100 URL: http://code.openbravo.com/erp/mods/org.openbravo.activiti/rev/9ce8cc16cb256dbc480cd116b949a6c454c07ae3 [^] fixed bug 28915: tomcat does not start when number of jobs to execute is big The problem is due the extra pool activiti uses, which was configured to acquire at most 8 connections and to wait for one of them is released when an extra one is required. When in this situation, more than 8 connections are used in parallel causing a deadlock situation. Temporary solution, till issue 29089 is fixed, consists in allowing activiti module to grow as much as needed, restoring to a maximum of 5 idle connections once the rest are released. --- M config/applicationContext.xml ---

(0075020) alostale (manager) 2015-02-27 10:12	new version 5.8.8 of activiti published including this patch

(0075090) AugustoMauch (manager) 2015-03-02 14:54	Code review done by me, and tested by ECA

Issue History
Date Modified	Username	Field	Change
2015-02-11 13:47	egoitz	New Issue
2015-02-11 13:47	egoitz	Assigned To	=> mtaal
2015-02-12 13:19	jonalegriaesarte	Assigned To	mtaal => alostale
2015-02-16 11:13	jonalegriaesarte	Resolution time	=> 1425078000
2015-02-17 09:30	jonalegriaesarte	Summary	Not possible to start tomcat after use the duning module => Not possible to start tomcat after use the dunning module
2015-02-27 09:29	alostale	Relationship added	blocks 0029089
2015-02-27 09:30	alostale	Relationship replaced	related to 0029089
2015-02-27 09:38	alostale	Note Added: 0075015
2015-02-27 09:39	alostale	Note Edited: 0075015	View Revisions
2015-02-27 09:46	alostale	Review Assigned To	=> AugustoMauch
2015-02-27 10:05	hgbot	Checkin
2015-02-27 10:05	hgbot	Note Added: 0075019
2015-02-27 10:05	hgbot	Status	new => resolved
2015-02-27 10:05	hgbot	Resolution	open => fixed
2015-02-27 10:05	hgbot	Fixed in SCM revision	=> http://code.openbravo.com/erp/mods/org.openbravo.activiti/rev/9ce8cc16cb256dbc480cd116b949a6c454c07ae3 [^]
2015-02-27 10:12	alostale	Note Added: 0075020
2015-03-02 14:54	AugustoMauch	Note Added: 0075090
2015-03-02 14:54	AugustoMauch	Status	resolved => closed
2022-02-18 04:21	priyam	Category	Activiti Integration => Z_Obsolete Activiti Integration
2022-02-18 04:24	priyam	Category	Z_Obsolete Activiti Integration => zz obsolete Activiti Integration