figured it out (at least with an older version of
> Hadoop). I ended up writing a short post about it
>
>
> https://creechy.wordpress.com/2022/03/22/building-hadoop-spark-jupyter-on-macos/
>
> --joe
>
> On Thu, Mar 24, 2022 at 3:14 PM Andrew Purtell
> wrote:
>
>&
If you build with -Dbundle.snappy -Dbundle.zstd on the Maven command line this
would produce a tarball containing copies of the native shared libraries in
lib/native/ and this would be like your symlink workaround but perhaps less
hacky and something the build supports already. Does this work
Bigtop, in a nutshell, is a non-commercial multi-stakeholder Apache project
that produces a build framework that takes as input source from Hadoop and
related big data projects and produces as output OS native packages for
installation and management - certainly, a distribution of the Hadoop
HBase will take advantage of HDFS specific features if they are available
but can run on anything that has a Hadoop FileSystem driver. Gluster is an
option. Maybe Lustre and Ceph also.
If you plan on dedicating storage to Cassandra, then you don't have to
worry about managing a distributed
Chengi,
This is not the forum for inquires about this or that vendor changes. I
work for Intel but on community focused work. I couldn't even answer your
questions. You should start by looking on the vendor's website for where to
direct further inquiry.
On the other hand if the question is about
There is no hate here. It's a simple courtesy. Questions about Apache
Hadoop should be directed to the Apache Hadoop mailing lists. Questions
about $VENDOR products should be directed to the vendor's mailing lists or
support infrastructure.
Furthermore, the question as posed has nothing to do
On Mon, Sep 24, 2012 at 10:38 AM, Harsh J ha...@cloudera.com wrote:
Make sure to checkout the rootbeer compiler that makes life easy:
https://github.com/pcpratts/rootbeer1
Indeed. Interesting to think about how one might plumb Mapper and
Reducer to Rootbeer's ParallelRuntime.
Best regards,
Hi Jason,
On Mon, Sep 17, 2012 at 6:55 AM, Dai, Jason jason@intel.com wrote:
I'd like to announce Project Panthera, our open source efforts that showcase
better data analytics capabilities on Hadoop/HBase (through both SW and HW
improvements), available at
You could do that, but that means your app will have to have keytabs
for all the users want to act as. Proxyuser will be much easier to
manage. Maybe getting proxyuser support in hbase if it is not there
yet
I don't think proxy auth is what the OP is after. Do I have that
right? Implies the
We are planning to run a next generation of Hadoop ecosystem components in
our production in a few months. We plan to use HDFS 2.0 for the HA NameNode
work. The platform will also include YARN but its use will be experimental.
So we'll be running something equivalent to the CDH MR1 package to
,
- Andy
Problems worthy of attack prove their worth by hitting back. - Piet Hein (via
Tom White)
From: Ted Yu yuzhih...@gmail.com
To: mapreduce-user@hadoop.apache.org
Cc: Andrew Purtell apurt...@apache.org; Stack st...@duboce.net
Sent: Thursday, January 12, 2012 8
Hi Mahadev,
Was this reproducible?
Best regards,
- Andy
Problems worthy of attack prove their worth by hitting back. - Piet Hein (via
Tom White)
From: Andrew Purtell apurt...@apache.org
To: mapreduce-user@hadoop.apache.org mapreduce-user
)
From: Dhruba Borthakur dhr...@gmail.com
To: hdfs-user@hadoop.apache.org; Andrew Purtell apurt...@apache.org
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 merge and contribute it to Apache
Hadoop
. - Piet Hein (via
Tom White)
From: Dhruba Borthakur dhr...@gmail.com
To: hdfs-user@hadoop.apache.org; Andrew Purtell apurt...@apache.org
Sent: Thursday, September 15, 2011 10:14 AM
Subject: Re: Need help regarding HDFS-RAID
That's right Andy. 0.22+. We
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 dhr...@gmail.com
To:
)
From: Ajit Ratnaparkhi ajit.ratnapar...@gmail.com
To: hdfs-user@hadoop.apache.org
Cc: Andrew Purtell apurt...@apache.org
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
Is *Hadoop 0.20.2 also not compatible with Hbase 0.90.3 ???*
In a strict sense they are, but without append support HBase cannot guarantee
that the last block of write ahead logs are synced to disk, so in some failure
cases edits will be lost. With append support then the hole of these
I think I can speak for all of the HBase devs that in our opinion this vendor
benchmark was designed by hypertable to demonstrate a specific feature of
their system -- autotuning -- in such a way that HBase was, obviously, not
tuned. Nobody from the HBase project was consulted on the results or
From: Jason Rutherglen jason.rutherg...@gmail.com
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
Congratulations Patrick and all!
Best regards,
- Andy
From: Patrick Hunt ph...@apache.org
Subject: ZooKeeper approved by Apache Board as TLP!
To: zookeeper-...@hadoop.apache.org, zookeeper-user
zookeeper-user@hadoop.apache.org
Date: Monday, November 22, 2010, 10:28 AM
We are now
From: Todd Lipcon t...@cloudera.com
[...]
4000 xcievers is a lot.
2:1 ratio of file descriptors to xceivers. 4000 xceivers is
quite normal on a heavily loaded HBase cluster in my experience.
We run with 10K xceivers...
The problem is the pain is not quite high enough to devote months to
?
Thanks,
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
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 je...@qualtrics.com
Subject: Re: Lots of Different Kind of Datanode
: Andrew Purtell [mailto:apurt...@apache.org]
Sent: Thu 5/13/2010 11:54 PM
To: hbase-user@hadoop.apache.org
Subject: RE: Using HBase on other file systems
You really want to run HBase backed by
Eucalyptus' Walrus? What do you
have
behind that?
From: Gibbon, Robert, VF-Group
That has been a problem before. But I see Jon has already filed a jira for this.
From: Todd Lipcon
Subject: Re: HBase client hangs after upgrade to 0.20.4 when used from reducer
It appears like we might be stuck in an infinite loop here:
IPC Server handler 9 on 60020 daemon prio=10
You really want to run HBase backed by Eucalyptus' Walrus? What do you have
behind that?
From: Gibbon, Robert, VF-Group
Subject: RE: Using HBase on other file systems
[...]
NB. I checked out running HBase over Walrus (an AWS S3
clone): bork - you want me to file a Jira on that?
Anybody use it?
- Andy
HBase 0.20.4 EC2 AMIs are now available in all regions. These are instance
store backed AMIs.
The latest launch scripts can be found here:
https://hbase.s3.amazonaws.com/hbase-ec2-0.20.4.tar.gz
Region
--
AMIID ArchName
--
Our experience with Gluster 2 is that self heal when a brick drops off the
network is very painful. The high performance impact lasts for a long time. I'm
not sure but I think Gluster 3 may only rereplicate missing sections instead of
entire files. On the other hand I would not trust Gluster 3
Others have followed up on the central question, which is about durability, and
have pointed out that the text is misleading.
However more generally regarding the question Does HBase do in-memory
replication of rows?:
HBase will have a replication feature in the next release independent of
or you'll need to
extend the FileSystem class to write a client that Hadoop
Core can use.
There is one:
https://issues.apache.org/jira/browse/HADOOP-6253
It even exports stripe locations in a way useful for distributing MR task
placement, but provides only one host per block.
- Andy
Given your take, I encourage you to check out HBASE-1697.
- Andy
On Fri Apr 30th, 2010 6:14 AM PDT Michael Segel wrote:
Andrew,
Not exactly.
Within HBase, if you have access, you can do anything to any resource. I don't
believe there's a concept of permissions. (Unless you can use the
From: Michael Segel
Imagine you have a cloud of 100 hadoop nodes.
In theory you could create multiple instances of HBase on
the cloud.
Obviously I don't think you could have multiple region
servers running on the same node.
The use case I was thinking about if you have a centralized
This is the way it is with REST. You have HTTP transaction overheads for each
access to a (path specified) resource. Multiple clients and Stargate instances
will help. REST/WS is best suited for the case where you will have thousands of
concurrent clients making fairly infrequent requests along
Actually I can get several thousand values per second using scanners and
small-ish values, roughly on par with the Thrift connector.
From: Andrew Purtell
[...]
Also, I can get several hundred reads per second using
scanners and batching, and I can do several hundred puts per
second using
I filed a JIRA for this and will take a look at it soon:
https://issues.apache.org/jira/browse/HBASE-2475
Thanks for the report, very helpful.
In the equivalent XML notation, the ordering is
specifically required per the schema.
... and Jersey adds a marshaller and unmarshaller to the JAXB
My advice is to use a scanner with explicit start/end key (best) or filters
(still good), not temporary tables (not so good).
HBase 0.21 will have MultiGet, so that would be another option then.
- Andy
From: Geoff Hendrey
[...]
As I understand it, you have a table, and you need to do
From: Geoff Hendrey
[...]
Yes, it shows BLOCKCACHE = 'false'
Hbase shell is taking 63 seconds to scan a
table with {LIMIT=1}!
The actual time to perform the action is subsecond by there's ~62 seconds of
hanging around waiting for region locations to come back. ROOT or META might
not
The Hackathon is basically agenda-less, but I'd like to propose a general topic
of discussion we should cover while we are all in the room together:
- For HBASE-1964 (HBASE-2183, HBASE-2461, and related): injecting and/or
mocking exceptions thrown up from DFSClient. I think we want a toolkit
The short answer is you need more HDFS datanodes.
It's a question of trying to do too much at peak load with too few cluster
resources.
Brief reminder: I have a small cluster, 3 regionservers
(+datanodes), 1 master (+namenode).
We preform a massive load of data into hbase every few
Hey Todd,
I don't think commodity hardware is a joke at all, it's
just a different definition of commodity.
Yes, this is why I said:
The commodity hardware talk around MR and BigTable
is a bit of a joke --
I tend to think of commodity as USD$6000 or so. Really, standard server
class
My suggestions:
Don't run below INFO logging level for performance reasons once you have a
cluster up and running.
Instead of using DN logs, instead export HBase and HDFS metrics via Ganglia.
http://wiki.apache.org/hadoop/GangliaMetrics
Subject: Re: get the impact hbase brings to HDFS, datanode log exploded after
we started HBase.
To: hbase-user@hadoop.apache.org, apurt...@apache.org
Date: Thursday, April 8, 2010, 6:49 PM
thanks Andrew,
On Fri, Apr 9, 2010 at 2:30 AM, Andrew Purtell apurt...@apache.org
wrote:
My
Just some ideas, possibly half-baked:
From: Amandeep Khurana
Subject: Re: Using SPARQL against HBase
To: hbase-user@hadoop.apache.org
1. We want to have a SPARQL query engine over it that can return
results to queries in real time, comparable to other systems out
there. And since we will
Sammy,
Is HBase deserializing the entire row when it reads the
data from disk
No.
so limiting the column doesn't have any effect.
HBase is a column oriented store -- values are grouped independently at the
store level by column family.
It appears you are using only one column family,
Internet
- Special room rate of $135/night
Best regards,
Andrew Purtell
apurt...@apache.org
andrew_purt...@trendmicro.com
Our org (Trend Micro) will be using an internal build based on 0.20 for at
least the rest of this year. It is, really, already 1.0 from our point of
view, the first ASF Hadoop release officially adopted into our production
environment. I hope other users of Hadoop will speak up on this thread
First,
ulimit: 1024
That's fatal. You need to up file descriptors to something like 32K.
See http://wiki.apache.org/hadoop/Hbase/Troubleshooting, item #6
From there, let's see.
- Andy
From: Oded Rosen o...@legolas-media.com
Subject: DFSClient errors during massive HBase load
To:
HBase has nice properties for efficiently storing, for example, a sparse
adjacency representation of a graph, very large graphs. I'm sure it could be
used to store an enormous number of RDF triples. But this is a long long way
from something that can respond to SPARQL queries. The RDF store
I thought Heart was dead.
- Andy
From: Jonathan Gray
Subject: RE: Using SPARQL against HBase
Stack pointed this out to me yesterday which could be of interest to you:
http://wiki.apache.org/incubator/HeartProposal
http://heart.korea.ac.kr/
Hi Raffi,
To read up on fundamentals I suggest Google's BigTable paper:
http://labs.google.com/papers/bigtable.html
Detail on how HBase implements the BigTable architecture within the Hadoop
ecosystem can be found here:
http://wiki.apache.org/hadoop/Hbase/HbaseArchitecture
, 2010 at 11:56 AM, Andrew Purtell
apurt...@apache.orgwrote:
Hi Raffi,
To read up on fundamentals I suggest Google's
BigTable paper:
http://labs.google.com/papers/bigtable.html
Detail on how HBase implements the BigTable
architecture within the Hadoop
ecosystem can be found here
Hi,
Read this:
http://www.larsgeorge.com/2009/10/hbase-architecture-101-storage.html
[...]
In the thread Data distribution in HBase , one of the people
mentioned that the data hosted by the Region Server may not
actually reside on the same machine
. So when asked for data , it fetches from
Hi David,
What about setting time to lives on column families? You can add or change the
'TTL' attribute on a column family in the shell, or specify a time to live when
creating a table. See javadoc for HColumnDescriptor. A time to live is a Long
value (unit is microseconds) associated with
Please see inline.
From: David Swift
Andrew,
The TimeToLive works exactly as you described. It's
perfect for our needs.
However, I aged out several hundred thousand rows, waited
about 10 minutes, and then ran a compact from the HBase
shell. During the whole period, I ran a periodic
This use case is an ideal one for coprocessors. Alas, the coprocessor feature
is not finished yet.
More inline.
From: William Kang
Subject: Re: Questions about data distribution in HBase
What I need is a low latency system can perform some videos
processes on the fly. For this reason, a
Steven,
If you are going to go that route, please check out Coprocessors (HBASE-2000,
HBASE-2001). The current patch on HBASE-2001 for example implements an
in-process MapReduce framework for the regionserver that allows you to load (at
this time) arbitrary classes from HDFS which implement
A really good suggestion. We advocate and use this extensively.
When the queries (or some reasonable subset) can be anticipated and some amount
of lag is acceptable, then you can periodically run a MR job that precomputes
answers to anticipated queries and writes them to a table that you will
Hi Tim,
Currently we only have public AMIs registered in the us-east-1 region. EC2 AMIs
are region-locked. So the scripts are not finding any public AMIs for the
region you are running in -- EU? -- hence the error.
I have also never seen the Xalan complaints. What OS?
I did replicate the
Yes, if you are creating your own private AMIs you have to change the S3_BUCKET
setting in hbase-ec2-env.sh to a bucket that you own. The HBase public AMI
bucket is read only. :-) If the bucket name you specify does not exist it will
be created by ec2-upload-bundle. You may want to try that
From: Tim Robertson timrobertson...@gmail.com
I added to the ec2 env:
EC2_URL=https://us-east-1.ec2.amazonaws.com
and also:
$ echo $EC2_URL
https://us-east-1.ec2.amazonaws.com
But the error remains:
Required parameter 'AMI' missing (-h for usage)
Waiting for instance to
Tim,
Try these scripts:
http://hbase.s3.amazonaws.com/hbase/hbase-ec2-eu.tar.gz
I'd appreciate it. They are what I'm working with now over in eu-west-1 with no
issues. I'll have AMIs for HBase 0.20.3 on Hadoop 0.20.2 ready to go in the EU
within the hour. Please let me know if you continue
x86_64
From: Andrew Purtell apurt...@apache.org
Try these scripts:
http://hbase.s3.amazonaws.com/hbase/hbase-ec2-eu.tar.gz
I'd appreciate it. They are what I'm working with now over
in eu-west-1 with no issues. I'll have AMIs for HBase 0.20.3
on Hadoop 0.20.2 ready to go in the EU within
Not a waste of time at all. :-)
Right, src/contrib/ec2/ becomes contrib/ec2/ after 'ant package' with
appropriate substitutions.
- Andy
From: Tim Robertson timrobertson...@gmail.com
Subject: Re: EC2 scripts
To: apurt...@apache.org, hbase-user@hadoop.apache.org
Date: Saturday, March 27,
Hey Thomas,
On Apache's legal-discuss@ list it was resolved some time ago that the Good,
Not Evil phrase in the JSON license does not preclude inclusion of it with ASF
2.0 licensed works.
ASF 2.0 licensed works are already in Debian main.
I think this is a non issue but you can easily ask
I've opened an issue on this topic in the hbase jira:
https://issues.apache.org/jira/browse/HBASE-2383
Thanks for asking Debian, Thomas.
- Andy
梁爽,
I'm using hadoop 0.20.1 and hbase 0.20.3. I have stargate
running in tomcat and use apache as a proxy
But here is the problem.
Some of my row key have special character like '/'.
Can you provide more detail? Anything in the Stargate log? Or Tomcat log? Or
Apache log?
We have a simple
We would appreciate tips/information of how to change the
configuration so that OOME probability is minimized.
Try running with 4GB heaps if you can.
On recent JVMs -- but don't use 1.6.0_18! -- you can have the JVM compress 64
bit object references into 32 bits. This will save heap at minor
This was an exception talking to the HDFS NameNode. Please check the NameNode
log, grep using the file URI there.
- Andy
From: Nathan Harkenrider nathan.harkenri...@gmail.com
Subject: Re: Data Loss During Bulk Load
To: hbase-user@hadoop.apache.org
Date: Monday, March 22, 2010, 3:47 PM
Hi Seth,
Very simple. You have to wait for EC2 to launch all of the slaves
before your cluster will come up. The master in your case is
waiting for DFS to initialize. Check the master log under
/mnt/hbase/logs if you want to see the Waiting for DFS to
initialize... messages.
The master will
[Copied to hbase-u...@]
Hi Lars,
Required parameter 'AMI' missing (-h for usage)
I guess that is OK?
No, that means the scripts are not picking up a valid public AMI.
I think you may be the first to attempt to use the EC2 scripts in the EU.
One thing I did not mention in my presentation is
The last time I checked the Rackspace instance types had less disk. For example
the 8192 MB option has 320 GB of disk. For roughly the same price and RAM on
EC2 you get 840 GB of instance storage (m1.large). Presumably for a
HBase/Hadoop deployment, storage capacity is a top concern.
And note
Something you might want to look into is the EC2 scripts on Hadoop core trunk
(0.21-dev). These have moved beyond bash scripts tied to the EC2 command line
tools to a set of Python scripts which use libcloud to abstract away the
infrastructure mechanics. So it's about equal effort to deploy a
The IP addresses assigned on the cluster are all internal ones, so when the
regionservers do a reverse lookup, they get something foo.internal. Then they
report this to the master, which hands them out to the client library as region
locations. So while you can telnet to 60020 on the slaves as
best to update should an instance fail
and be replaced, but this should be hopefully a rare event and elastic IPs can
help, though each account only gets 5 of them without justification to AWS.
- Andy
On Fri Mar 19th, 2010 9:45 AM PDT Andrew Purtell wrote:
The IP addresses assigned
ec2 related blog
(http://aws-musings.com/)
Regards,
Vaibhav
On Sun, Mar 14, 2010 at 3:58 PM, Andrew Purtell wrote:
Hey Vaibhav,
Do you think any of your #2 would be generally useful
for others and something we might fold into the public HBase EC2
scripts? I don't want
Hey Vaibhav,
Do you think any of your #2 would be generally useful for others and
something we might fold into the public HBase EC2 scripts? I don't want
to be presumptive, but let me kindly plant the idea...
Best,
- Andy
- Original Message
From: Vaibhav Puranik
The data will be intact, but the config will be invalidated, right?
After a cluster has been suspended and then resumed, all of the assigned IP
addresses will be different. So this would render all of the Hadoop and
HBase configuration files invalid. The data will be there but you will have
to
Hmm...
I know you only used leeware as an example Edward. :-)
I'd caution you have to be careful. Obviously only a subset of low cost
options are suitable and you need to know what you are doing.
Given this example, leeware servers would be possibly useful but underperforming
for plain
Hi Vaibhav,
My advice is for the unaware. :-)
No implication or disrespect is meant for others.
We have targeted our EC2 scripts at the newcomer, early evaluator, or casual
experimenter, though they can for sure serve as a starting point to build
something more professional/production. So
and
trigger recovery actions.
Maybe someone can experiment, confirm or refute, and then share their
experiences?
- Andy
- Original Message
From: Andrew Purtell apurt...@apache.org
To: hbase-user@hadoop.apache.org
Sent: Sat, March 13, 2010 12:32:22 PM
Subject: Re: on Hadoop
=AttachFiledo=
gettarget=HUG9_HBaseUpdate_JonathanGray.pdf
HBase and HDFS by Todd Lipcon of Cloudera
http://wiki.apache.org/hadoop/HBase/HBasePresentations?action=AttachFiledo=
gettarget=HUG9_HBaseAndHDFS_ToddLipcon_Cloudera.pdf
HBase on EC2 by Andrew Purtell of Trend Micro
http://hbase.s3
Hi James,
I architected something once using hosted servers in ServerBeach as core
resources with elastic extension onto the EC2 cloud to handle peaks and
spikes. My current thinking is this kind of hybrid model may be the best
way to go for hosted elastic Hadoop clusters. HBase use is different
of materialized? Would you
kindly give more details?
Thanks!
- Hua
On Wed, Mar 10, 2010 at 8:12 AM, Andrew Purtell wrote:
I came to this discussion late.
Ryan and J-D's use case is clearly successful.
In addition to what others have said, I think another case where HBase
really
However, once and every while our Nagios (our service monitor)
detects
that requesting the Hbase master page takes a long
time. Sometimes 10
sec, rarely around 30 secs but most of
the time 10 secs. In the cases
the page loads slowly,
there is a fair amount of load on Hbase.
I've
I came to this discussion late.
Ryan and J-D's use case is clearly successful.
In addition to what others have said, I think another case where HBase really
excels is supporting analytics over Big Data (which I define as on the order of
petabyte). Some of the best performance numbers are put
I built the HBase RPMs for Cloudera. Just for future reference if someone needs
patched
versions of those RPMs, it's easy enough for me to spin them for you. Just drop
me a
note.
And/or you may want to send a note to Cloudera explaining your needs.
I put together a version of Cloudera-ized
I think Jonathan Gray began working on something similar to this a few
months ago for Streamy.
Regrettably that was proprietary and remains so to the best of my knowledge.
As JD said, Coprocessors are very interesting, and I think they're
worth looking at (or contributing a patch fo!)
You may have made the mental substitution, but just in case not:
Also the server side implementation holds all intermediate values in the
heap.
What we have now is a sketch that needs some work. It really should spill
intermediates to local disk (as HFiles) as necessary and then
Since you have already decided to move I don't see the point in asking what
your troubles were. Suffice it to say I use HBase in all-localhost mode on a
Windows development box every day (though I do prefer to use my Ubuntu box
whenever possible for other reasons). You can't effectively run
To any interested parties,
The 9th edition of the HBase Users' Group is kindly being sponsored and hosted
by Mozilla in Mountain View (California) on March 10th.
Register at http://su.pr/4pe8Of
Yours,
The HBaseistas
Thanks Paul!
- Original Message
From: Paul Smith psm...@aconex.com
To: hbase-user@hadoop.apache.org; hbase-...@hadoop.apache.org
Sent: Tue, February 23, 2010 10:29:00 PM
Subject: Hbase has been Mavenized
Just a quick cross post to mention that Hbase trunk has now been migrated
I talked with Stack over the weekend. We're thinking more like the week of
March 29. The 8th seems too soon.
- Andy
- Original Message
From: Andrew Purtell apurt...@apache.org
To: hbase-...@hadoop.apache.org; hbase-user@hadoop.apache.org
Cc: hbase-...@hadoop.apache.org
Sent
3/10 at mozilla. Thats the
week you can't do, right?
St.Ack
On Mon, Feb 22, 2010 at 2:08 PM, Andrew Purtell wrote:
I talked with Stack over the weekend. We're thinking more like the week of
March 29. The 8th seems too soon.
- Andy
- Original Message
From: Andrew
ext4 is the clear winner over ext3.
xfs if ext4 is not available (RHEL, CentOS, etc.) This is what our EC2
scripts use.
Both ext4 and xfs use extents and do lazy/group allocation.
- Original Message
From: Sujee Maniyam su...@sujee.net
To: hbase-user hbase-user@hadoop.apache.org
://people.canonical.com/~smoser/bugs/428692/
Sujee
http://sujee.net
On Sat, Feb 20, 2010 at 10:24 AM, Andrew Purtell wrote:
ext4 is the clear winner over ext3.
xfs if ext4 is not available (RHEL, CentOS, etc.) This is what our EC2
scripts use.
Both ext4 and xfs use extents and do lazy
, Andrew Purtell wrote:
March 8 is ok -- afternoon/evening.
- Andy
From: Stack
Can we do March 8th? I can't do March 9th.
St.Ack
On Thu, Feb 11, 2010 at 12:43 PM, Andrew Purtell wrote:
Hi all,
Trend Micro would like to host HUG9 at our offices in Cupertino:
Hi all,
Trend Micro would like to host HUG9 at our offices in Cupertino:
March 8 is ok -- afternoon/evening.
- Andy
From: Stack
Can we do March 8th? I can't do March 9th.
St.Ack
On Thu, Feb 11, 2010 at 12:43 PM, Andrew Purtell wrote:
Hi all,
Trend Micro would like to host HUG9 at our offices in Cupertino:
http://maps.google.com/maps?f=qsource
The Zookeeper devs suggest giving 1 GB heap to each process. I run it
with default heap (256 MB) and it's stable for me, but I run relatively
small clusters.
ZK wants its own disk for the transaction log. So if you can, dedicate a
disk, or run ZK on separate servers.
Our EC2 scripts start a
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