During my import process I create a connection to a table. How long can I leave that connection open without using it before HBase will try to close it?

Hadoop 0.20.2+737
HBase 0.89.20100924+28

Thanks

-Pete

There is not really a limit on that.  Underneath, the client will deal with following regions around if the move, a new master if there is a failover, etc...

The only thing that cannot be left open indefinitely is a scanner (they have a server-side lease and expire if left idle).

JG

> -----Original Message-----
> From: Peter Haidinyak [mailto:[EMAIL PROTECTED]]
> Sent: Monday, February 07, 2011 10:07 AM
> To: [EMAIL PROTECTED]
> Subject: How long can I have a table open?
>
> During my import process I create a connection to a table. How long can I
> leave that connection open without using it before HBase will try to close it?
>
> Hadoop 0.20.2+737
> HBase 0.89.20100924+28
>
> Thanks
>
> -Pete

Thanks, I have been having some real stability problems with my cluster and I'm trying to narrow down the possible problems.

-Pete

-----Original Message-----
From: Jonathan Gray [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 07, 2011 11:27 AM
To: [EMAIL PROTECTED]
Subject: RE: How long can I have a table open?

There is not really a limit on that.  Underneath, the client will deal with following regions around if the move, a new master if there is a failover, etc...

The only thing that cannot be left open indefinitely is a scanner (they have a server-side lease and expire if left idle).

JG

> -----Original Message-----
> From: Peter Haidinyak [mailto:[EMAIL PROTECTED]]
> Sent: Monday, February 07, 2011 10:07 AM
> To: [EMAIL PROTECTED]
> Subject: How long can I have a table open?
>
> During my import process I create a connection to a table. How long can I
> leave that connection open without using it before HBase will try to close it?
>
> Hadoop 0.20.2+737
> HBase 0.89.20100924+28
>
> Thanks
>
> -Pete

What's the nature of the stability problems?  These are issues seen server-side or just client-side?

Restarting your long-running clients fixes the issues?

> -----Original Message-----
> From: Peter Haidinyak [mailto:[EMAIL PROTECTED]]
> Sent: Monday, February 07, 2011 11:29 AM
> To: [EMAIL PROTECTED]
> Subject: RE: How long can I have a table open?
>
> Thanks, I have been having some real stability problems with my cluster and
> I'm trying to narrow down the possible problems.
>
> -Pete
>
> -----Original Message-----
> From: Jonathan Gray [mailto:[EMAIL PROTECTED]]
> Sent: Monday, February 07, 2011 11:27 AM
> To: [EMAIL PROTECTED]
> Subject: RE: How long can I have a table open?
>
> There is not really a limit on that.  Underneath, the client will deal with
> following regions around if the move, a new master if there is a failover,
> etc...
>
> The only thing that cannot be left open indefinitely is a scanner (they have a
> server-side lease and expire if left idle).
>
> JG
>
> > -----Original Message-----
> > From: Peter Haidinyak [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, February 07, 2011 10:07 AM
> > To: [EMAIL PROTECTED]
> > Subject: How long can I have a table open?
> >
> > During my import process I create a connection to a table. How long
> > can I leave that connection open without using it before HBase will try to
> close it?
> >
> > Hadoop 0.20.2+737
> > HBase 0.89.20100924+28
> >
> > Thanks
> >
> > -Pete