Yes, I was mentioning before append beacuse branch name itself is 20Append. Sync is the main api name to sync editlogs.
@George mainly need to consider the Hbase usage. sync is supported. append api has some open issues. for example https://issues.apache.org/jira/browse/HDFS-1228 Apologies for the confusions if any. Thanks a lot for more clarification! Thanks Uma ----- Original Message ----- From: Todd Lipcon <t...@cloudera.com> Date: Sunday, September 18, 2011 1:35 am Subject: Re: risks of using Hadoop To: common-user@hadoop.apache.org > To clarify, *append* is not supported and is known to be buggy. *sync* > support is what HBase needs and what 0.20.205 will support. Before 205 > is released, you can also find these features in CDH3 or by building > your own release from SVN. > > -Todd > > On Sat, Sep 17, 2011 at 4:59 AM, Uma Maheswara Rao G 72686 > <mahesw...@huawei.com> wrote: > > Hi George, > > > > You can use it noramally as well. Append interfaces will be exposed. > > For Hbase, append support is required very much. > > > > Regards, > > Uma > > > > ----- Original Message ----- > > From: George Kousiouris <gkous...@mail.ntua.gr> > > Date: Saturday, September 17, 2011 12:29 pm > > Subject: Re: risks of using Hadoop > > To: common-user@hadoop.apache.org > > Cc: Uma Maheswara Rao G 72686 <mahesw...@huawei.com> > > > >> > >> Hi, > >> > >> When you say that 0.20.205 will support appends, you mean for > >> general > >> purpose writes on the HDFS? or only Hbase? > >> > >> Thanks, > >> George > >> > >> On 9/17/2011 7:08 AM, Uma Maheswara Rao G 72686 wrote: > >> > 6. If you plan to use Hbase, it requires append support. 20Append > >> has the support for append. 0.20.205 release also will have append > >> support but not yet released. Choose your correct version to avoid > >> sudden surprises. > >> > > >> > > >> > > >> > Regards, > >> > Uma > >> > ----- Original Message ----- > >> > From: Kobina Kwarko<kobina.kwa...@gmail.com> > >> > Date: Saturday, September 17, 2011 3:42 am > >> > Subject: Re: risks of using Hadoop > >> > To: common-user@hadoop.apache.org > >> > > >> >> We are planning to use Hadoop in my organisation for quality of > >> >> servicesanalysis out of CDR records from mobile operators. We > are>> >> thinking of having > >> >> a small cluster of may be 10 - 15 nodes and I'm preparing the > >> >> proposal. my > >> >> office requires that i provide some risk analysis in the > proposal.>> >> > >> >> thank you. > >> >> > >> >> On 16 September 2011 20:34, Uma Maheswara Rao G 72686 > >> >> <mahesw...@huawei.com>wrote: > >> >> > >> >>> Hello, > >> >>> > >> >>> First of all where you are planning to use Hadoop? > >> >>> > >> >>> Regards, > >> >>> Uma > >> >>> ----- Original Message ----- > >> >>> From: Kobina Kwarko<kobina.kwa...@gmail.com> > >> >>> Date: Saturday, September 17, 2011 0:41 am > >> >>> Subject: risks of using Hadoop > >> >>> To: common-user<common-user@hadoop.apache.org> > >> >>> > >> >>>> Hello, > >> >>>> > >> >>>> Please can someone point some of the risks we may incur if we > >> >>>> decide to > >> >>>> implement Hadoop? > >> >>>> > >> >>>> BR, > >> >>>> > >> >>>> Isaac. > >> >>>> > >> > > >> > >> > >> -- > >> > >> --------------------------- > >> > >> George Kousiouris > >> Electrical and Computer Engineer > >> Division of Communications, > >> Electronics and Information Engineering > >> School of Electrical and Computer Engineering > >> Tel: +30 210 772 2546 > >> Mobile: +30 6939354121 > >> Fax: +30 210 772 2569 > >> Email: gkous...@mail.ntua.gr > >> Site: http://users.ntua.gr/gkousiou/ > >> > >> National Technical University of Athens > >> 9 Heroon Polytechniou str., 157 73 Zografou, Athens, Greece > >> > >> > > > > > > -- > Todd Lipcon > Software Engineer, Cloudera >
