Solved - In trunk, the snappy symbols are getting linked in with the rest of the native stuff in libhadoop.so:
[tbroberg@san-mothra trunk]$ nm -gC hadoop-common-project/hadoop-common/target/hadoop-common-0.24.0-SNAPSHOT/lib/libhadoop.so | grep -i snappy 0000000000003c20 T Java_org_apache_hadoop_io_compress_snappy_SnappyCompressor_compressBytesDirect 00000000000039e0 T Java_org_apache_hadoop_io_compress_snappy_SnappyCompressor_initIDs 0000000000004200 T Java_org_apache_hadoop_io_compress_snappy_SnappyDecompressor_decompressBytesDirect 0000000000003fc0 T Java_org_apache_hadoop_io_compress_snappy_SnappyDecompressor_initIDs So, this command line is sufficient: mvn install -Pdist,native -DskipTests Thanks again for answering, Alejandro. - Tim. ________________________________________ From: Tim Broberg [tim.brob...@exar.com] Sent: Monday, October 31, 2011 12:59 PM To: common-dev@hadoop.apache.org Subject: RE: Example mvn cmd line to build snappy native lib? Thanks, Alejandro, but perhaps this is the procedure for a previous version? SVN trunk provides source in trunk/hadoop-common-project/hadoop-common/target/native/src/org/apache/hadoop/io/compress/snappy, but there is no config script or makefile. There is a fragment of documentation in trunk/BUILDING.txt - " * Use -Dsnappy.prefix=(/usr/local) & -Dbundle.snappy=(false) to compile Snappy JNI bindings and to bundle Snappy SO files" which suggests that this is maven-able, and compilation / packaging succeed, but there is no libsnappy.so at the end of the process. I'd really like not to switch to a different branch of the code yet again, and surely *somebody* knows how to build snappy in the trunk... - Tim. ________________________________________ From: Alejandro Abdelnur [t...@cloudera.com] Sent: Monday, October 31, 2011 12:45 PM To: common-dev@hadoop.apache.org; Tim Broberg Subject: Re: Example mvn cmd line to build snappy native lib? Tim, You have to download it snappy from source tarball, run './configure' and then 'make install' Thanks. Alejandro On Mon, Oct 31, 2011 at 11:24 AM, Tim Broberg <tbrob...@yahoo.com> wrote: > bump > > Does anybody know how to build the snappy native library? > > - Tim. > > > ________________________________ > From: Tim Broberg <tbrob...@yahoo.com> > To: "common-dev@hadoop.apache.org" <common-dev@hadoop.apache.org> > Sent: Friday, October 28, 2011 11:52 PM > Subject: Example mvn cmd line to build snappy native lib? > > I'm trying to build the trunk from hadoop SVN including all the native > libraries. > > The BUILDING.txt file has the following documentation on building the > native libraries: > > " > Build options: > > * Use -Pnative to compile/bundle native code > * Use -Dsnappy.prefix=(/usr/local) & -Dbundle.snappy=(false) to compile > Snappy JNI bindings and to bundle Snappy SO files > " > > I tried the following, but never seem to get a libsnappy.so anywhere: > > mvn compile -Pnative > mvn compile -Pnative -Dsnappy.prefix=/usr/local > > mvn compile -Pnative -Dsnappy.prefix=/usr/local -Dbundle.snappy=true > > mvn compile -Pnative -Dsnappy.prefix=/usr/local -Dbundle.snappy=false > > mvn compile -Pnative -Dsnappy.prefix=~tbroberg -Dbundle.snappy=true > > > If I stick a #error statement in SnappyCompressor.c, I do see the first of > these fail, so it's doing *something* with snappy. > > Can anyone provide an example command line to build this? > > Thanks, > - Tim. The information and any attached documents contained in this message may be confidential and/or legally privileged. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, dissemination, or reproduction is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender immediately by return e-mail and destroy all copies of the original message. ________________________________ The information and any attached documents contained in this message may be confidential and/or legally privileged. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, dissemination, or reproduction is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender immediately by return e-mail and destroy all copies of the original message.