Hive had lot of trouble while upgrading antlr last time. See https://issues.apache.org/jira/browse/HIVE-2439 & https://issues.apache.org/jira/browse/HIVE-4547 Not to say you will encounter these difficulties in next upgrade too but given the fact that antlr is not very particular about backward & forward compatibility and Hive uses antlr in pretty grueling way, I will be pretty cautious with upgrade.
My two cents. Ashutosh On Fri, Aug 23, 2013 at 4:17 PM, Daniel Dai <[email protected]> wrote: > If 3.5 can work without any code change, probably should be Ok. But we > never tried that. > > > On Fri, Aug 23, 2013 at 7:43 PM, Prashant Kommireddi <[email protected] > >wrote: > > > Hi Daniel, > > > > The reasons are more internal. Our app is having an issue with 3.4 and > it's > > easier for us to move forward to 3.5 > > > > > http://antlr.markmail.org/search/?q=%22void+%3D+null%3B%22#query:%22void%20%3D%20null%3B%22%20order%3Adate-backward+page:1+mid:7g3th2bg3onyoqhv+state:results > > > > Is it difficult to upgrade the version across the board (hive + pig)? > > > > > > On Fri, Aug 23, 2013 at 2:02 PM, Daniel Dai <[email protected]> > wrote: > > > > > Any reason why you want to upgrade to 3.5? We'd like Hive/Pig use the > > same > > > version of antrl, which ease the integration work of Hive/Pig/HCat. > > > > > > Thanks, > > > Daniel > > > > > > > > > On Fri, Aug 23, 2013 at 5:50 PM, Prashant Kommireddi < > > [email protected] > > > >wrote: > > > > > > > Hey guys, > > > > > > > > Anyone aware of any issues with upgrading antlr to v3.5 for Pig? I am > > > > planning to try it out, and wanted to make sure it's not already been > > > > tried. > > > > > > > > Thanks, > > > > Prashant > > > > > > > > > > -- > > > CONFIDENTIALITY NOTICE > > > NOTICE: This message is intended for the use of the individual or > entity > > to > > > which it is addressed and may contain information that is confidential, > > > privileged and exempt from disclosure under applicable law. If the > reader > > > of this message is not the intended recipient, you are hereby notified > > that > > > any printing, copying, dissemination, distribution, disclosure or > > > forwarding of this communication is strictly prohibited. If you have > > > received this communication in error, please contact the sender > > immediately > > > and delete it from your system. Thank You. > > > > > > > -- > CONFIDENTIALITY NOTICE > NOTICE: This message is intended for the use of the individual or entity to > which it is addressed and may contain information that is confidential, > privileged and exempt from disclosure under applicable law. If the reader > of this message is not the intended recipient, you are hereby notified that > any printing, copying, dissemination, distribution, disclosure or > forwarding of this communication is strictly prohibited. If you have > received this communication in error, please contact the sender immediately > and delete it from your system. Thank You. >
