This list summarizes new and improved functionality which has been added to the N1 Grid Engine 6 software since it was released in June 2004.
The Accounting and Reporting Console (ARCo) now uses the GUI elements of the Sun Web Console. This update improves the look and feel as well as the scalability of the web interface of ARCo.
The scalability, submit rate, scheduling speed, status query speed of qstat, job turnaround times, and PE job start have been significantly improved for many typical use cases in comparison to the original N1 Grid Engine 6 release.
The execution daemon installation is supported in Solaris 10 Containers (Zones).
The DRMAA Java language binding is now available. The DRMAA Java language binding library is located in the <sge_root>/lib/drmaa.jar directory. The documentation is in <sge_root>/doc/javadocs.
The qping utility has been significantly improved to diagnose N1 Grid Engine daemon communication. See the qping(1) man page for more information.
The auto installation process has been improved. An auto installation and de-installation of the Berkeley DB (BDB) RPC server is now possible. The backup and restore procedure is now supported for the classic spooling option and the Berkeley DB RPC spooling option.
Berkeley DB spooling on NFSv4 under Solaris 10 is supported.
The BDB database now can be installed on a NFSv4 mounted filesystem on Solaris 10.
For performance reasons, it is recommended that you use NFSv4 BDB spooling only when the NFSv4 mount provides an excellent high speed connection to the file server.
On Linux platforms, an LSB conforming "lock" file is created by the daemon startup script.
New man pages for the utility binaries gethostbyaddr, gethostbyname, gethostname, getservbyname and qping have been added. The man page sge_h_aliases(5) has been renamed to host_aliases(5).
It is now possible to avoid inheritance of the execution daemon environment to the job environment. It is also possible to avoid inheriting the variable LD_LIBRARY_PATH from the execution daemon environment (this feature can solve NFS issues in certain setups). See sge_conf(5) for more information.
New options to optimize the memory overhead and speed of qstat. See sge_qstat(5) and qstat(1) for more information (-u and -s flags).
The new qconf -purge switch easily allows the removal of all references to a host or hostgroup in a cluster queue. See qconf(1) under the -purge switch for more information.
The spooling interval for the sharetree usage can now be configured to reduce I/O and improve performance on NFS mounted qmaster spool directories. See sge_conf(5) for more information in the section about the STREE_SPOOL_INTERVAL parameter.
Faster execution daemon reconnect in the Certificate Security Protocol (CSP) installation mode.
Execution daemons now can reconnect faster to qmaster if the execution daemon or qmaster daemon has been restarted.