Current synchronization on FSDataset seems not quite right. Doing what amounted
to applying Todd's patch that modifies FSDataSet to use reentrant rwlocks
cleared up that type of problem for us.
- Andy
From: Jeff Whiting
Subject: Re: Lots of Different Kind of Datanode Errors
To: hdfs-user@ha
,
Gokul
From: Andrew Purtell
[mailto:apurt...@apache.org]
Sent: Tuesday, June 08, 2010 1:24
AM
To: hdfs-user@hadoop.apache.org
Subject: Re: Lots of Different
Kind of Datanode Errors
Current synchronization on FSDataset seems not
quite right. Doing what
I looked at HADOOP-6311 recently when deciding if I wanted to port the full
FD-passing bits of HDFS-347 onto CDH3B3. I see Owen changed his -1 to -0, but
that's not really comforting. How likely is this to go in? Would this go in to
CDH if I posted a patch for HADOOP-6311 and HDFS-347?
My aim h
> From: Jason Rutherglen
> Right and AN is not using ZK for the actual NameNode
> methods/functions, only for the failover election of the 'backup'
> NameNode?
What do you mean by "actual NameNode methods/functions"? I believe there was an
effort during the development of AvatarNode to use BookK
But that is the HDFS RAID effectively in 0.22+, not 0.21, right Dhruba?
Best regards,
- Andy
Problems worthy of attack prove their worth by hitting back. - Piet Hein (via
Tom White)
>
>From: Dhruba Borthakur
>To: hdfs-user@hadoop.apache.org
>Sent: Th
)
>
>From: Ajit Ratnaparkhi
>To: hdfs-user@hadoop.apache.org
>Cc: Andrew Purtell
>Sent: Thursday, September 15, 2011 10:54 AM
>Subject: Re: Need help regarding HDFS-RAID
>
>
>Thanks for the info!
>So can I use HDFS-RAID taken from apache hdfs trunk as it
. - Piet Hein (via
Tom White)
>
>From: Dhruba Borthakur
>To: hdfs-user@hadoop.apache.org; Andrew Purtell
>Sent: Thursday, September 15, 2011 10:14 AM
>Subject: Re: Need help regarding HDFS-RAID
>
>
>That's right Andy. 0.22+. We are
Tom White)
>
>From: Dhruba Borthakur
>To: Andrew Purtell
>Cc: "hdfs-user@hadoop.apache.org"
>Sent: Tuesday, September 20, 2011 2:18 AM
>Subject: Re: Need help regarding HDFS-RAID
>
>
>Hi andy,
>
>
>we do run a versio
(via
Tom White)
>
>From: Dhruba Borthakur
>To: hdfs-user@hadoop.apache.org; Andrew Purtell
>Sent: Tuesday, September 20, 2011 9:49 AM
>Subject: Re: Need help regarding HDFS-RAID
>
>
>Hi Andy,
>
>
>I will be very grateful to you if you merg
