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Error reading data from the connection (database monitoring active) [CORE2630] #3038

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firebird-automations opened this issue Sep 15, 2009 · 18 comments

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Submitted by: Joel da Rosa (webjoel)

Duplicates CORE2993

Attachments:
jMonitorFirebird.zip

I'm using a Java application developed by me to monitor the monitoring tables in Firebird, after some time with the active monitor new connections begin to be refused.

After closing the monitor back to normal.

P.S.: with other monitors the error persists also.

I´m using:

> Firebird Classic Server 2.1.3 in Server Linux.
> Monitor(Java) test: http://www.webjoel.xpg.com.br/jMonitorFirebird.zip

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Commented by: Joel da Rosa (webjoel)

> Version 2.1.3 the error persists also.

> Application error:

"Error reading data from the connection".

> firebird.log error:

"Fatal lock manager error: invalid lock id (128912), errno: 4".

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Commented by: @hvlad

I can't download test and i don't understand portugese

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Commented by: @asfernandes

"new connections begin to be refused" -> what is the error message?

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Commented by: Joel da Rosa (webjoel)

monitor test, in English.

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Modified by: Joel da Rosa (webjoel)

Attachment: jMonitorFirebird.zip [ 11497 ]

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Commented by: @hvlad

I can't reproduce it with Windows 2.1.3 CS
What should i do to reproduce it ?

@firebird-automations
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Commented by: Joel da Rosa (webjoel)

To reproduce the error you must open the monitor and connect to a database, and connect and disconnect at the base by another application, after a few attempts the following message appears: "Error reading data from the connection."

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Commented by: @hvlad

I still can't reproduce it.

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Commented by: Joel da Rosa (webjoel)

Unfortunately the error does not follow a consistent, sometimes it happens immediately, sometimes not.

Last Test: Connecting a client application on a Windows server-based Linux (Ubuntu), with active monitor (Refresh: 2 seconds), after 17 hours using the database normally the error occurred:

Application error:

"Error reading data from the connection".

firebird.log error:

"Fatal lock manager error: invalid lock id (128912), errno: 4".

PS: At the time the error was an active connection to the database.

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Commented by: Joel da Rosa (webjoel)

New version of jMonitorFirebird (attached).

But the error still persists...

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Modified by: Joel da Rosa (webjoel)

Attachment: jMonitorFirebird.zip [ 11511 ]

@firebird-automations
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Modified by: Joel da Rosa (webjoel)

Version: 2.1.3 [ 10302 ]

description: I'm using a Java application developed by me to monitor the monitoring tables in Firebird, after some time with the active monitor new connections begin to be refused.

After closing the monitor back to normal.

P.S.: with other monitors the error persists also.

I´m using:

> Firebird Classic Server 2.1.2 in Server Linux.
> Monitor(Java) test: http://www.webjoel.xpg.com.br/jMonitorFirebird.zip

=>

I'm using a Java application developed by me to monitor the monitoring tables in Firebird, after some time with the active monitor new connections begin to be refused.

After closing the monitor back to normal.

P.S.: with other monitors the error persists also.

I´m using:

> Firebird Classic Server 2.1.3 in Server Linux.
> Monitor(Java) test: http://www.webjoel.xpg.com.br/jMonitorFirebird.zip

summary: Connection refused with database monitoring active => Error reading data from the connection (database monitoring active)

Version: 2.1.2 [ 10270 ] =>

@firebird-automations
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Modified by: @dyemanov

Attachment: jMonitorFirebird.zip [ 11497 ] =>

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Modified by: @dyemanov

Link: This issue duplicates CORE2993 [ CORE2993 ]

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Commented by: @dyemanov

Duplicates CORE2993.

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Modified by: @dyemanov

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Duplicate [ 3 ]

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Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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Modified by: @pavel-zotov

QA Status: No test

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