RE: Migrating from 07.1 .100

[Subhash Agrawal <ag...@opentext.com>]

Hi,
I currently embed kafka 0.7.1 in my java process. To support SSL, we have decided to upgrade Kafka to 0.10.0.
After upgrade, I am seeing following error during kafka startup.

java.lang.NullPointerException
                at kafka.utils.Throttler.<init>(Throttler.scala:45)
                at kafka.log.LogCleaner.<init>(LogCleaner.scala:75)
                at kafka.log.LogManager.<init>(LogManager.scala:66)
                at kafka.server.KafkaServer.createLogManager(KafkaServer.scala:609)
                at kafka.server.KafkaServer.startup(KafkaServer.scala:183)

Has anybody seen this error? If I run kafka externally, then I don't see this error.

Thanks
Subhash A.


From: Subhash Agrawal
Sent: Wednesday, June 08, 2016 12:40 PM
To: 'users@kafka.apache.org'
Subject: Migrating from 07.1 .100

Hi,
I am currently using Kafka 0.7.1 without zookeeper. We have single node kafka server.
To enhance security, we have decided to support SSL. As 0.7.1 version does not support SSL,
we are upgrading to latest version 0.10.0.0. We noticed that with the latest version, it is
mandatory to use zookeeper.

Is there any way I can use Kafka 0.10 or 0.9 version without zookeeper?

Thanks
Subhash A.

Re: Migrating from 07.1 .100

[Gerard Klijs <ge...@dizzit.com>]

There has been a lot of changes, and it can also be quit a challenge to get
the SSL working. And with only a null-pointer, there is little to go on. I
would first focus on getting it to work with 0.10 (if possible also on a
clustered test setup), and if it all works, try to configure the ssl.

On Mon, Jun 13, 2016 at 9:08 PM Subhash Agrawal <ag...@opentext.com>
wrote:

> Hi,
> I currently embed kafka 0.7.1 in my java process. To support SSL, we have
> decided to upgrade Kafka to 0.10.0.
> After upgrade, I am seeing following error during kafka startup.
>
> java.lang.NullPointerException
>                 at kafka.utils.Throttler.<init>(Throttler.scala:45)
>                 at kafka.log.LogCleaner.<init>(LogCleaner.scala:75)
>                 at kafka.log.LogManager.<init>(LogManager.scala:66)
>                 at
> kafka.server.KafkaServer.createLogManager(KafkaServer.scala:609)
>                 at kafka.server.KafkaServer.startup(KafkaServer.scala:183)
>
> Has anybody seen this error? If I run kafka externally, then I don't see
> this error.
>
> Thanks
> Subhash A.
>
>
> From: Subhash Agrawal
> Sent: Wednesday, June 08, 2016 12:40 PM
> To: 'users@kafka.apache.org'
> Subject: Migrating from 07.1 .100
>
> Hi,
> I am currently using Kafka 0.7.1 without zookeeper. We have single node
> kafka server.
> To enhance security, we have decided to support SSL. As 0.7.1 version does
> not support SSL,
> we are upgrading to latest version 0.10.0.0. We noticed that with the
> latest version, it is
> mandatory to use zookeeper.
>
> Is there any way I can use Kafka 0.10 or 0.9 version without zookeeper?
>
> Thanks
> Subhash A.
>
>