[Freeswitch-dev] odbc连接过多的问题
在测试FREEESWITCH 1.0.19版本时候发现一个问题，会引起odbc过多连接，导致无法创建新连接问题。查找代码发现应该是下面的函数没有去掉连接的使用标志。 SWITCH_DECLARE(void) switch_cache_db_release_db_handle(switch_cache_db_handle_t ** dbh) { if(dbh && *dbh) { switch_clear_flag(*dbh, CDF_INUSE); //去掉使用状态标志 switch_mutex_unlock((*dbh)->mutex); *dbh = NULL; } } 王洪永 中企开源-IP通讯部 Mon, 28 Jun 2010 09:18:52 +0800
I don't understand the text but I understand the C code. added to GIT 1a5b52e 2010/6/27 王洪永 <linuxwhy@163.com>
在测试FREEESWITCH 1.0.19版本时候发现一个问题，会引起odbc过多连接，导致无法创建新连接问题。查找代码发现应该是下面的函数没有去掉连接的使用标志。
SWITCH_DECLARE(void) switch_cache_db_release_db_handle(switch_cache_db_handle_t ** dbh) { if(dbh && *dbh) { switch_clear_flag(*dbh, CDF_INUSE); //去掉使用状态标志 switch_mutex_unlock((*dbh)->mutex); *dbh = NULL; } }
王洪永 中企开源-IP通讯部 Mon, 28 Jun 2010 09:18:52 +0800
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This is what he said: In the test FREEESWITCH 1.0.19 version of the time found a problem, too much can cause odbc connection, leading to not create a new connection problem. Find the code found in the following function should be connected without removing the logo. SWITCH_DECLARE (void) switch_cache_db_release_db_handle (switch_cache_db_handle_t ** dbh) ( if (dbh & & * dbh) ( switch_clear_flag (* dbh, CDF_INUSE); / / get rid of using the state flag switch_mutex_unlock ((* dbh) -> mutex); * Dbh = NULL; ) ) -E Gpro.ws
I guess the source was easier to read than the google translation anyways Mathieu Rene Avant-Garde Solutions Inc Office: + 1 (514) 664-1044 x100 Cell: +1 (514) 664-1044 x200 mrene@avgs.ca On 2010-06-28, at 9:50 AM, EdPimentl wrote:
This is what he said:
In the test FREEESWITCH 1.0.19 version of the time found a problem, too much can cause odbc connection, leading to not create a new connection problem. Find the code found in the following function should be connected without removing the logo.
SWITCH_DECLARE (void) switch_cache_db_release_db_handle (switch_cache_db_handle_t ** dbh) ( if (dbh & & * dbh) ( switch_clear_flag (* dbh, CDF_INUSE); / / get rid of using the state flag switch_mutex_unlock ((* dbh) -> mutex); * Dbh = NULL; ) )
-E Gpro.ws
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turns out that change is horrible. i think his problem is he needs more connections because that change really messes things up 2010/6/28 Mathieu Rene <mrene_lists@avgs.ca>
I guess the source was easier to read than the google translation anyways
Mathieu Rene Avant-Garde Solutions Inc Office: + 1 (514) 664-1044 x100 Cell: +1 (514) 664-1044 x200 mrene@avgs.ca
On 2010-06-28, at 9:50 AM, EdPimentl wrote:
This is what he said:
In the test FREEESWITCH 1.0.19 version of the time found a problem, too much can cause odbc connection, leading to not create a new connection problem. Find the code found in the following function should be connected without removing the logo.
SWITCH_DECLARE (void) switch_cache_db_release_db_handle (switch_cache_db_handle_t ** dbh) ( if (dbh & & * dbh) ( switch_clear_flag (* dbh, CDF_INUSE); / / get rid of using the state flag switch_mutex_unlock ((* dbh) -> mutex); * Dbh = NULL; ) )
-E Gpro.ws
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agree with mrene that the google translation is horrible in this case. 2010/6/29 Anthony Minessale <anthony.minessale@gmail.com>:
turns out that change is horrible. i think his problem is he needs more connections because that change really messes things up
2010/6/28 Mathieu Rene <mrene_lists@avgs.ca>
I guess the source was easier to read than the google translation anyways Mathieu Rene Avant-Garde Solutions Inc Office: + 1 (514) 664-1044 x100 Cell: +1 (514) 664-1044 x200 mrene@avgs.ca
On 2010-06-28, at 9:50 AM, EdPimentl wrote:
This is what he said:
In the test FREEESWITCH 1.0.19 version of the time found a problem, too much can cause odbc connection, leading to not create a new connection problem. Find the code found in the following function should be connected without removing the logo.
SWITCH_DECLARE (void) switch_cache_db_release_db_handle (switch_cache_db_handle_t ** dbh) ( if (dbh & & * dbh) ( switch_clear_flag (* dbh, CDF_INUSE); / / get rid of using the state flag switch_mutex_unlock ((* dbh) -> mutex); * Dbh = NULL; ) )
-E Gpro.ws
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Following is the translation from Chinese: We found a problem when testing Freeswitch version 1.0.19, it will create too many ODBC connections, and lead to unable create new connection. It should be caused by following function that flag was not removed. SWITCH_DECLARE(void) switch_cache_db_release_db_handle(switch_cache_db_handle_t ** dbh) { if(dbh && *dbh) { switch_clear_flag(*dbh, CDF_INUSE); //remove INUSE flag switch_mutex_unlock((*dbh)->mutex); *dbh = NULL; } } -----Original Message----- From: freeswitch-dev-bounces@lists.freeswitch.org [mailto:freeswitch-dev-bounces@lists.freeswitch.org] On Behalf Of Seven Du Sent: Tuesday, June 29, 2010 7:43 AM To: freeswitch-dev@lists.freeswitch.org Subject: Re: [Freeswitch-dev] odbc连接过多的问题 agree with mrene that the google translation is horrible in this case. 2010/6/29 Anthony Minessale <anthony.minessale@gmail.com>:
turns out that change is horrible. i think his problem is he needs more connections because that change really messes things up
2010/6/28 Mathieu Rene <mrene_lists@avgs.ca>
I guess the source was easier to read than the google translation anyways Mathieu Rene Avant-Garde Solutions Inc Office: + 1 (514) 664-1044 x100 Cell: +1 (514) 664-1044 x200 mrene@avgs.ca
On 2010-06-28, at 9:50 AM, EdPimentl wrote:
This is what he said:
In the test FREEESWITCH 1.0.19 version of the time found a problem, too much can cause odbc connection, leading to not create a new connection problem. Find the code found in the following function should be connected without removing the logo.
SWITCH_DECLARE (void) switch_cache_db_release_db_handle (switch_cache_db_handle_t ** dbh) ( if (dbh & & * dbh) ( switch_clear_flag (* dbh, CDF_INUSE); / / get rid of using the state flag switch_mutex_unlock ((* dbh) -> mutex); * Dbh = NULL; ) )
-E Gpro.ws
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-- Anthony Minessale II
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it's wrong. That patch breaks things horribly I tested it. I forgot that the flag is only cleared when the thread who created it, exits. The point is to keep the db connection dedicated to that thread until it exits. if the total connections run out it may be due to mod_limit and postgres only having 100 connections as the default. 2010/6/28 夏青 <xiaqing@hundsun.com>
Following is the translation from Chinese:
We found a problem when testing Freeswitch version 1.0.19, it will create too many ODBC connections, and lead to unable create new connection. It should be caused by following function that flag was not removed.
SWITCH_DECLARE(void) switch_cache_db_release_db_handle(switch_cache_db_handle_t ** dbh) { if(dbh && *dbh) { switch_clear_flag(*dbh, CDF_INUSE); //remove INUSE flag switch_mutex_unlock((*dbh)->mutex); *dbh = NULL; } }
-----Original Message----- From: freeswitch-dev-bounces@lists.freeswitch.org [mailto: freeswitch-dev-bounces@lists.freeswitch.org] On Behalf Of Seven Du Sent: Tuesday, June 29, 2010 7:43 AM To: freeswitch-dev@lists.freeswitch.org Subject: Re: [Freeswitch-dev] odbc连接过多的问题
agree with mrene that the google translation is horrible in this case.
2010/6/29 Anthony Minessale <anthony.minessale@gmail.com>:
turns out that change is horrible. i think his problem is he needs more connections because that change really messes things up
2010/6/28 Mathieu Rene <mrene_lists@avgs.ca>
I guess the source was easier to read than the google translation anyways Mathieu Rene Avant-Garde Solutions Inc Office: + 1 (514) 664-1044 x100 Cell: +1 (514) 664-1044 x200 mrene@avgs.ca
On 2010-06-28, at 9:50 AM, EdPimentl wrote:
This is what he said:
In the test FREEESWITCH 1.0.19 version of the time found a problem, too much can cause odbc connection, leading to not create a new connection problem. Find the code found in the following function should be connected without removing the logo.
SWITCH_DECLARE (void) switch_cache_db_release_db_handle (switch_cache_db_handle_t ** dbh) ( if (dbh & & * dbh) ( switch_clear_flag (* dbh, CDF_INUSE); / / get rid of using the state flag switch_mutex_unlock ((* dbh) -> mutex); * Dbh = NULL; ) )
-E Gpro.ws
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Tony committed a new method that allows a hybrid mode for the connection pool. This is now used by mod_db (thus db backend for limit) and cidlookup. I'll convert lcr over to it too. This should help with connection counts for database handle usage that doesn't need thread affinity. 2010/6/29 Anthony Minessale <anthony.minessale@gmail.com>
it's wrong.
That patch breaks things horribly I tested it. I forgot that the flag is only cleared when the thread who created it, exits.
The point is to keep the db connection dedicated to that thread until it exits. if the total connections run out it may be due to mod_limit and postgres only having 100 connections as the default.
2010/6/28 夏青 <xiaqing@hundsun.com>
Following is the translation from Chinese:
We found a problem when testing Freeswitch version 1.0.19, it will create too many ODBC connections, and lead to unable create new connection. It should be caused by following function that flag was not removed.
SWITCH_DECLARE(void) switch_cache_db_release_db_handle(switch_cache_db_handle_t ** dbh) { if(dbh && *dbh) { switch_clear_flag(*dbh, CDF_INUSE); //remove INUSE flag switch_mutex_unlock((*dbh)->mutex); *dbh = NULL; } }
-----Original Message----- From: freeswitch-dev-bounces@lists.freeswitch.org [mailto: freeswitch-dev-bounces@lists.freeswitch.org] On Behalf Of Seven Du Sent: Tuesday, June 29, 2010 7:43 AM To: freeswitch-dev@lists.freeswitch.org Subject: Re: [Freeswitch-dev] odbc连接过多的问题
agree with mrene that the google translation is horrible in this case.
2010/6/29 Anthony Minessale <anthony.minessale@gmail.com>:
turns out that change is horrible. i think his problem is he needs more connections because that change really messes things up
2010/6/28 Mathieu Rene <mrene_lists@avgs.ca>
I guess the source was easier to read than the google translation anyways Mathieu Rene Avant-Garde Solutions Inc Office: + 1 (514) 664-1044 x100 Cell: +1 (514) 664-1044 x200 mrene@avgs.ca
On 2010-06-28, at 9:50 AM, EdPimentl wrote:
This is what he said:
In the test FREEESWITCH 1.0.19 version of the time found a problem, too much can cause odbc connection, leading to not create a new connection problem. Find the code found in the following function should be connected without removing the logo.
SWITCH_DECLARE (void) switch_cache_db_release_db_handle (switch_cache_db_handle_t ** dbh) ( if (dbh & & * dbh) ( switch_clear_flag (* dbh, CDF_INUSE); / / get rid of using the state flag switch_mutex_unlock ((* dbh) -> mutex); * Dbh = NULL; ) )
-E Gpro.ws
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-- -Rupa
hi ,what is your freeswitch version? The revised test is normal I 王洪永 中企开源-IP通讯部 北京中企开源信息技术有限公司 电话：58022020-212 MSN:linuxwhy@msn.com E-mail:wanghongyong@ceopen.cn Tue, 29 Jun 2010 11:59:45 -0500
Developers using git HEAD. Did you tested the HEAD version on your box? 在 2010年7月1日 下午3:56，王洪永 <linuxwhy@163.com> 写道：
hi ,what is your freeswitch version? The revised test is normal I
王洪永 中企开源-IP通讯部 北京中企开源信息技术有限公司 电话：58022020-212 MSN:linuxwhy@msn.com E-mail:wanghongyong@ceopen.cn Tue, 29 Jun 2010 11:59:45 -0500
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participants (7)
-
Anthony Minessale
-
EdPimentl
-
Mathieu Rene
-
Rupa Schomaker
-
Seven Du
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夏青
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王洪永