Joey, Great, thank you for your cross-reference! - Andy Zhong -----Original Message----- From: Joey Echeverria [mailto:[email protected]] Sent: Thursday, June 23, 2011 11:13 AM To: [email protected] Subject: Re: Hadoop Version
Andy, That's a typical solution. The key is that the hadoop-core jar in you HDFS install has to match the hadoop-core jar in HBase's lib directory. The -append version that ships with HBase is needed to prevent data loss. -Joey On Thu, Jun 23, 2011 at 11:54 AM, Zhong, Andy <[email protected]> wrote: > We have tried Hbase Upgrade from 0.20.3 to 0.90.2 on Hadoop 0.20.2 for > a real time app, but had to replace hadoop-core with > hadoop-core-0.20-append-r1056497.jar shipped from Hbase 0.90.2 > otherwise Hbase won't start as compatible issue. This is based on > Michael Noll's suggestion, but not sure if it's a valid option, anyone > else tried that, and will propose any other issue? > > Thanks, > Andy Z. > > -----Original Message----- > From: Joey Echeverria [mailto:[email protected]] > Sent: Thursday, June 23, 2011 7:59 AM > To: [email protected] > Subject: Re: Hadoop Version > > It will "work", however, hadoop-.20-203 doesn't have append support so > there is the risk of data loss. > > See http://hbase.apache.org/book/hadoop.html for more details on > Hadoop versions. > > -Joey > > On Thu, Jun 23, 2011 at 6:32 AM, Saumitra Chowdhury > <[email protected]> wrote: >> Dear all, >> >> We are using Hbase 90.2 with hadoop-0.20. Will it be any problem if >> we > >> upgrade to hadoop-0.20.203 in real time server? >> In fact I wanna know that have anyone tested it with hbase 90.x >> series? I have heard some problem about hadoop-0.21 but heard nothing >> about this version. >> >> BR >> Saumitra Chowdhury >> > > > > -- > Joseph Echeverria > Cloudera, Inc. > 443.305.9434 > -- Joseph Echeverria Cloudera, Inc. 443.305.9434
