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From "Roger I Martin PhD" <hypernex...@hypernexinc.com>
Subject Re: no connections in the pool
Date Fri, 11 Jan 2002 18:08:00 GMT
Hello, I looked into this and found that the current cvs HEAD supplies
avalon-excalibur-20011229.jar and a look inside of it shows no
org.apache.avalon.excalibur.datasource.Jdbc3Connection class

The tomcat log shows

2002-01-11 12:16:15 DEBUG   (2002-01-11) 12:16.15:718   [cocoon  ]
(Unknown-URI) Unknown-thread/LogKitLogger: Exception in
JdbcConnectionFactory.newInstance:
java.lang.ClassNotFoundException:
org.apache.avalon.excalibur.datasource.Jdbc3Connection
 at java.net.URLClassLoader$1.run(URLClassLoader.java:201)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:189)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:309)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:265)
 at
org.apache.avalon.excalibur.datasource.JdbcConnectionFactory.newInstance(Jdb
cConnectionFactory.java:119)
 at
org.apache.avalon.excalibur.pool.AbstractPool.newPoolable(AbstractPool.java:
79)
 at
org.apache.avalon.excalibur.pool.HardResourceLimitingPool.newPoolable(HardRe
sourceLimitingPool.java:95)
 at
org.apache.avalon.excalibur.datasource.JdbcConnectionPool.newPoolable(JdbcCo
nnectionPool.java:74)
 at
org.apache.avalon.excalibur.pool.AbstractPool.internalGrow(AbstractPool.java
:120)
 at
org.apache.avalon.excalibur.pool.HardResourceLimitingPool.internalGrow(HardR
esourceLimitingPool.java:104)
 at
org.apache.avalon.excalibur.pool.SoftResourceLimitingPool.grow(SoftResourceL
imitingPool.java:91)
 at
org.apache.avalon.excalibur.datasource.JdbcConnectionPool.run(JdbcConnection
Pool.java:200)
 at java.lang.Thread.run(Thread.java:539)

2002-01-11 12:16:15 DEBUG   (2002-01-11) 12:16.15:750   [cocoon  ]
(Unknown-URI) Unknown-thread/LogKitLogger:
org.apache.avalon.excalibur.datasource.JdbcConnection: could not be
instantiated.
org.apache.avalon.excalibur.datasource.NoValidConnectionException:
org.apache.avalon.excalibur.datasource.Jdbc3Connection
 at
org.apache.avalon.excalibur.datasource.JdbcConnectionFactory.newInstance(Jdb
cConnectionFactory.java:133)
 at
org.apache.avalon.excalibur.pool.AbstractPool.newPoolable(AbstractPool.java:
79)
 at
org.apache.avalon.excalibur.pool.HardResourceLimitingPool.newPoolable(HardRe
sourceLimitingPool.java:95)
 at
org.apache.avalon.excalibur.datasource.JdbcConnectionPool.newPoolable(JdbcCo
nnectionPool.java:74)
 at
org.apache.avalon.excalibur.pool.AbstractPool.internalGrow(AbstractPool.java
:120)
 at
org.apache.avalon.excalibur.pool.HardResourceLimitingPool.internalGrow(HardR
esourceLimitingPool.java:104)
 at
org.apache.avalon.excalibur.pool.SoftResourceLimitingPool.grow(SoftResourceL
imitingPool.java:91)
 at
org.apache.avalon.excalibur.datasource.JdbcConnectionPool.run(JdbcConnection
Pool.java:200)
 at java.lang.Thread.run(Thread.java:539)
....

Regards,

Roger
----- Original Message -----
From: "Berin Loritsch" <bloritsch@apache.org>
To: <cocoon-dev@xml.apache.org>
Sent: Friday, January 11, 2002 9:18 AM
Subject: Re: no connections in the pool


> ANKUR SHAH wrote:
>
> >>>Original exception : java.lang.RuntimeException: Could not get the
> >>>datasource
> >>>org.apache.avalon.excalibur.datasource.NoAvailableConnectionException:
> >>>There are no connections in the pool, check your settings.
>
>
>
> PLEASE READ CAREFULLY
>
>
> The NoAvailableConnectionException is not the only exception you will see,
> but it is the last.
>
> The JdbcDataSouce features an asynchronous initialization so that the
> rest of Cocoon can continue initializing while the much slower and heavier
> Connection pool is being built.  This decreases the time spent in
> initialization overall.  Every time a Connection fails to be created,
> the causing exception is logged.  This log entry will be interspersed
> in the log with the other components' log messages.
>
> Please check the log between the log message
>
>     "ExcaliburComponentManager: Attempting to get Handler for:
>
>      org.apache.avalon.excalibur.datasource.DataSourceComponent"
>
>
> and the NoAvailableConnectionException message
>
>
> You will see more helpful exceptions pertaining to the JdbcDataSource.
>
> --
>
> "They that give up essential liberty to obtain a little temporary safety
>   deserve neither liberty nor safety."
>                  - Benjamin Franklin
>
>
> ---------------------------------------------------------------------
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>
>



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