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path: root/sbin/hastd/hastd.h
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* Add function to assert that the only descriptors we have open are the onespjd2011-01-281-0/+1
| | | | | | | | | | we expect to be open. Also assert that they point at expected type. Because openlog(3) API is unable to tell us descriptor number it is using, we have to close syslog socket, remember assert message in local buffer and if we fail on assertion, reopen syslog socket and log the message. MFC after: 1 week
* Add function to close all unneeded descriptors after fork(2).pjd2011-01-281-0/+2
| | | | MFC after: 1 week
* Don't open configuration file from worker process. Handle SIGHUP in thepjd2011-01-241-0/+2
| | | | | | | | master process only and pass changes to the worker processes over control socket. This removes access to global namespace in preparation for capsicum sandboxing. MFC after: 2 weeks
* Switch to sigprocmask(2) API also in the main process and secondary process.pjd2010-09-221-1/+1
| | | | | | | | | This way the primary process inherits signal mask from the main process, which fixes a race where signal is delivered to the primary process before configuring signal mask. Reported by: Mikolaj Golub <to.my.trociny@gmail.com> MFC after: 3 days
* Allow to execute specified program on various HAST events.pjd2010-08-271-1/+1
| | | | | MFC after: 2 weeks Obtained from: Wheel Systems Sp. z o.o. http://www.wheelsystems.com
* Implement configuration reload on SIGHUP. This includes:pjd2010-08-051-1/+2
| | | | | | | | | | | - Load added resources. - Stop and forget removed resources. - Update modified resources in least intrusive way, ie. don't touch /dev/hast/<name> unless path to local component or provider name were modified. Obtained from: Wheel Systems Sp. z o.o. http://www.wheelsystems.com MFC after: 1 month
* Please welcome HAST - Highly Avalable Storage.pjd2010-02-181-0/+48
HAST allows to transparently store data on two physically separated machines connected over the TCP/IP network. HAST works in Primary-Secondary (Master-Backup, Master-Slave) configuration, which means that only one of the cluster nodes can be active at any given time. Only Primary node is able to handle I/O requests to HAST-managed devices. Currently HAST is limited to two cluster nodes in total. HAST operates on block level - it provides disk-like devices in /dev/hast/ directory for use by file systems and/or applications. Working on block level makes it transparent for file systems and applications. There in no difference between using HAST-provided device and raw disk, partition, etc. All of them are just regular GEOM providers in FreeBSD. For more information please consult hastd(8), hastctl(8) and hast.conf(5) manual pages, as well as http://wiki.FreeBSD.org/HAST. Sponsored by: FreeBSD Foundation Sponsored by: OMCnet Internet Service GmbH Sponsored by: TransIP BV
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