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Wednesday, December 17, 2008
 
Quick Fix to the Linker Error - ld: fatal: library -lgcc_s: not found

Symptom(s):

When building some of the open source applications like MySQL Cluster Carrier Grade Edition with the GCC compiler, the linking step may fail with the fatal error message library -lgcc_s: not found despite the fact that the gcc_s library is available on the system and is in the linker search path -- for example, LD_LIBRARY_PATH on Solaris.

Quick Fix / Workaround:
  1. Add the absolute path to the gcc_s library on the link line, OR

  2. (Recommended) If the library's filename has any major and minor version numbers appended to it, simply create a soft link to the library in the same location without the major and minor version numbers in the target filename.

eg.,

On a Solaris 10 system, by default, the gcc_s library might be available under /usr/sfw/lib (32-bit SPARC and x86 copy), /usr/sfw/lib/sparcv9 (64-bit SPARC copy) and /usr/sfw/lib/amd64 (64-bit x64 copy). If all you can find is the gcc_s library with the version number(s) in the filename like libgcc_s.so.1, simply run the command 'ln -s libgcc_s.so.1 libgcc_s.so' in the same directory where you found the libgcc_s.so.1.

Note:

Probably this particular error message may show up on any OS platform with any compiler, and the workaround mentioned in this post may work on all those failed cases. I cannot guarantee that, but I know for sure that it works on Solaris (both SPARC and x86/x64 versions).

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Tuesday, December 09, 2008
 
Consolidating Siebel CRM 8.0 on a Single Sun SPARC Enterprise Server, T5440

.. blueprint document is now available on wikis.sun.com. Here is the direct link to the blueprint:
            Consolidating Oracle Siebel CRM 8 on a Single Sun SPARC Enterprise Server.

Siebel 8.0 Platform Sizing and Performance Program (PSPP) benchmark workload was used in running all the performance tests using Solaris Containers and Logical Domains (LDoms) on a single Sun SPARC Enterprise T5440 server running Solaris 10 5/08 (containers) and 10/08 (LDoms). The focus of the blueprint is around 3 major configurations -- performance numbers at 3500 users (small configuration), 7000 users (medium configuration) and 14000 user (large configuration) loads. Hence this blueprint document complements the 14,000 user Siebel 8.0 benchmark that we published earlier back in October 2008.

The blueprint has details around the resource allocations for all the tiers of a typical Siebel deployment to support 3500, 7000 and 14000 concurrent users, offers performance tuning tips that are specific to Solaris and Sun CMT systems, and shows the results from the 3500, 7000 and 14000 user performance tests using Solaris 10's virtualization technologies - Solaris Containers and the Logical Domains.

Notes:
  1. All the performance tests were conducted either with Solaris Containers or with the Logical Domains, but not with a mix of both of those technologies.

  2. Resource allocations were identical in both cases -- that is, with the Solaris Containers and the Logical Domains.


(Originally posted on blogs.sun.com at:
http://blogs.sun.com/mandalika/entry/consolidating_siebel_crm_8_0)

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