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Support Multi-Instance protocol daemons initd OSPFd is the first of the multi-instance daemons. This patch allows the starting, stopping, restarting and monitoring of multiple instances of the same protocol daemon. Multiple instances are specified in the daemons file using a new variable: ospfd_instances="1,2" Absence of this variable means ospfd will start in legacy, single instance mode. The original "ospfd=yes" line is still required. Daemons are started with the "-n <instance>" option. Each daemon is named "<daemon>-<instance>", for example "ospfd-1", "ospfd-2" etc. Similarly, pid files are ospfd-1.pid and vty files are named ospfd-1.vty. We're also introducing a new file, /etc/default/quagga to store the default value for the maximum instances associated with a daemon. watchquagga and others are unmodified and everything else just works once this code is in place. The code has been enhanced to support restarting watchquagga with only the updated daemons when an individual daemon is stopped or started. For example, without this patch, stopping just bgpd would terminate watchquagga even if ospfd and zebra are still running. Similarly, starting just bgpd when ospfd and zebra are running wouldn't update watchquagga to include bgpd. Furthermore, when the daemons file is modified and a daemon is no longer deemed necessary and quagga restarted, the daemon is not killed. For example, switching ospfd=yes to ospfd=no and restarting the quagga will leave ospfd daemon running. This case is also fixed with this patch. However, adding a new instance to the ospfd_instances file and starting just that instance will start just that instance and add it to watchquagga. Similarly, a single instance maybe stopped or restarted. Caveat emptor: With multi-instance daemons, stopping a single instance and then starting a different instance will cause all instances to be monitored by watchquagga i.e. all instances will be restarted, if necessary. Signed-off-by: Dinesh G Dutt <ddutt at cumulusnetworks.com> |
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# # To check if the patches still apply on new upstream versions: # for i in debian/patches/*.diff; do echo -e "#\n# $i\n#"; patch --fuzz=3 --dry-run -p1 < $i; done # # Filename transition from zebra to quagga # Files that keep their names /usr/bin/vtysh Files that got an -pj suffix /etc/default/zebra -> /etc/quagga/debian.conf /etc/init.d/zebra -> /etc/init.d/quagga /etc/zebra/ -> /etc/quagga/ /usr/share/doc/zebra/ -> /usr/share/doc/quagga/ /var/log/zebra/ -> /var/log/quagga/ /var/run/ -> /var/run/quagga/ Files that were moved /usr/sbin/* -> /usr/lib/quagga/