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Berkeley DB 6.1.19 crashes while opening damaged environment with DB_FAILCHK flag. Is it a bug?

compmaniakAug 3 2014

Hi,

After migrating to 6.1.19 release I found the case when Berkeley crashes attempting to open environment with dead processes in it. I've published MSVC2010 solution (failchk_crush) and damaged environment (example) in my dropbox https://www.dropbox.com/sh/wmx9c48y373gobm/AAC53UnSY_olSGpM4nwAWNSha

'failchk_crush' solution contains statically built berkeley library ( with Unicode support and /Z7 /MDd flags ). To reproduce a program crash you should copy all contents of 'example' folder into 'failchk_crush/test' folder and run a solution.

A first run crashes and prints this:

BDB0113 Thread/process 9688/2344002002 failed: BDB1507 Thread died in Berkeley DB library

__env_in_api: BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery

A next run doesn't crash and prints this:

BDB0060 PANIC: fatal region error detected; run recovery

DbEnv::open: BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery

6.0.30 release handles this case well. Please, take a look at this issue and let me know if it's a bug.

Thanks.

Comments

Mark Williams
Answer

Hi,

What your NuGet link points to is the Oracle Data Provider for .NET Core (ODPC) which is different from the Oracle Provider for Entity Framework Core. The EF provider is a separate assembly which has not been released yet (as of this posting date). The EF assembly will require the ODPC assembly.

Regards,

Mark

Marked as Answer by c0036513-d01d-46af-8a69-d47e16c6c3ce · Sep 27 2020
1 person found this helpful
3822801

When will the provider be released?

Alex Keh-Oracle

We're targeting November/December for the public beta.

2 people found this helpful
JoLi

Hi Alex,

that is good to hear. We are currently evaluating Entity Framework Core in a product that runs on .net 4.7.2.

Will the new provider also work in full framework or is .net core required?

66aed53f-0401-48d6-bf2f-390fe8ae1d95

Are you guys still targeting December on initial Beta release? I am currently working on a brand new project rewrite of .net over Oracle with .net core and I hope to see if work nicely with EF Core. I would love to help with the beta testing if you guys are looking for any help there!

Alex Keh-Oracle

We're currently conducting an Oracle EF Core private beta with a small number of customers right now. If you want to join, send an email to us: dotnet_us (at) oracle.com

We still plan to have a wide public beta distribution in December. It will probably be late December.

user902614

Hi, Oracle.

Do you have any updates on releasing beta version of entity framework core support?  It is holding up several development activities for our company. We have both Oracle and SQL Server databases.

Thank you,

Alex Keh-Oracle

Public beta still looking like late December.

You can get access to the private beta by emailing the address in my previous post.

user12147365

Hi , Excuse me , Public beta is released ? or How long does it take?

a0d7b336-f6d4-420a-846e-f15c67c1f11b

Hello, we have been reached January/2019 and still don't have any information about this feature.

I searched all over the site and 18c released documentation as well, but couldn't find a mention about EF Core.

Can confirm if the EF Core feature has already been released in 18c?

Thanks.

Alex Keh-Oracle

The public beta is not yet available. However, the private beta is. If you would like to join the private beta and start using Oracle EF Core now, send an email to dotnet_us (at) oracle.com.

3866898

How long should I expect to wait after sending an email for beta access?

Alex Keh-Oracle

Usually, we can get you access within a couple of business days.

3878615

Any estimation on when the EF Core driver will be released ?

Abderrahman Cheddir

Hello, we're actually working on a .Net Core project targeting an oracle database using ODP.NET for .Net Core and we'd like to migrate to EF Core, any news about the public beta or the final release, will it be available on the second quarter of this year ?

Alex Keh-Oracle

After the public beta and hearing the feedback, Oracle will have a better idea of when production will be for Oracle EF Core. My best estimate right now for production remains second quarter this year.

The public beta should be available quite soon.

user3120128

Hi Alex.

I'm having troubles with private beta, where can I find documentation or where to report

thanks

Alex Keh-Oracle

The doc is enclosed in the NuGet beta package. You can email me if you encounter an issue.

3873836

If you rename the .nupkg file to .zip, you can just unzip it like a regular zip file, and find the documentation inside.

3889708

is the nuget link for this product ? https://www.nuget.org/packages/Oracle.ManagedDataAccess.Core/

Mark Williams

Hello,

That is the link for the Oracle Data Provider for .NET Core product. I'm not sure if that is the specific product you mean. It is not, for example, the link for the Oracle EF Core provider product.

Regards,

Mark

3907530

Hi Guys

Any updates on the public beta date?  I've requested private beta access almost a week ago, but haven't heard anything.  Are you still targeting the second quarter for the full release?  Seeing as the public beta hasn't started, I'm thinking that date will be pushed also? 

Thanks

Justin

Alex Keh-Oracle

Hi Justin,

The beta invitation to you was sent out on Feb. 28. I'll resend it again.

3907530

I received it the second time around.  Thanks Alex!

d77098dd-c260-43de-803d-b1d7ecfaae8c

Hi Alex,

Would you mind send me the invitation for the oracle EF Core? Many thanks.

Best regards,

Hongjun

3914849

Hi Alex,

Could you please send me the invitaition for Oracle EF Core? Thanks.

Alex Keh-Oracle

If you would like to join the EF Core beta program, email dotnet_us (at) oracle.com.

e903bc85-56d0-4a47-aceb-52482873f525

Could you please tell us what the hold up is in getting at least the public beta version out?  It's way behind schedule now.

Alex Keh-Oracle

The ODP.NET EF Core Beta 3 is available on nuget.org.

https://www.nuget.org/packages/Oracle.EntityFrameworkCore/

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Locked on Aug 31 2014
Added on Aug 3 2014
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