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* various: general adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-271-0/+2
| | | | | | | | | | | | | | | | | Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended. Notes: svn path=/head/; revision=326276
* Make hastctl list command output current queue sizes.Mikolaj Golub2013-10-261-0/+11
| | | | | | | | Reviewed by: pjd MFC after: 1 month Notes: svn path=/head/; revision=257155
* Make hastctl(1) ('list' command) output a worker pid.Mikolaj Golub2013-07-011-0/+1
| | | | | | | | Reviewed by: pjd MFC after: 3 days Notes: svn path=/head/; revision=252472
* Add i/o error counters to hastd(8) and make hastctl(8) displayMikolaj Golub2013-02-251-0/+18
| | | | | | | | | | them. This may be useful for detecting problems with HAST disks. Discussed with and reviewed by: pjd MFC after: 1 week Notes: svn path=/head/; revision=247281
* For functions that return -1 on failure check exactly for -1 and not forPawel Jakub Dawidek2012-01-101-8/+8
| | | | | | | | | any negative number. MFC after: 3 days Notes: svn path=/head/; revision=229945
* Remove redundant setting of the error variable.Pawel Jakub Dawidek2011-12-151-2/+0
| | | | | | | | Found by: Clang Static Analyzer MFC after: 1 week Notes: svn path=/head/; revision=228542
* Prefer PJDLOG_ASSERT() and PJDLOG_ABORT() over assert() and abort().Pawel Jakub Dawidek2011-09-271-10/+9
| | | | | | | | | | pjdlog versions will log problem to syslog when application is running in background. MFC after: 3 days Notes: svn path=/head/; revision=225782
* Remove useless initialization.Mikolaj Golub2011-07-051-2/+1
| | | | | | | | Approved by: pjd (mentor) MFC after: 3 days Notes: svn path=/head/; revision=223780
* Keep statistics on number of BIO_READ, BIO_WRITE, BIO_DELETE and BIO_FLUSHPawel Jakub Dawidek2011-05-231-0/+17
| | | | | | | | | | | | | | requests as well as number of activemap updates. Number of BIO_WRITEs and activemap updates are especially interesting, because if those two are too close to each other, it means that your workload needs bigger number of dirty extents. Activemap should be updated as rarely as possible. MFC after: 1 week Notes: svn path=/head/; revision=222228
* Rename HASTCTL_ defines, which are used for conversion between mainMikolaj Golub2011-04-261-3/+3
| | | | | | | | | | | | | hastd process and workers, remove unused one and set different range of numbers. This is done in order not to confuse them with HASTCTL_CMD defines, used for conversation between hastctl and hastd, and to avoid bugs like the one fixed in in r221075. Approved by: pjd (mentor) MFC after: 1 week Notes: svn path=/head/; revision=221076
* For conversation between hastctl and hastd we should use HASTCTL_CMDMikolaj Golub2011-04-261-5/+5
| | | | | | | | | | defines. Approved by: pjd (mentor) MFC after: 1 week Notes: svn path=/head/; revision=221075
* Remove stale comment. Yes, it is valid to set role back to init.Pawel Jakub Dawidek2011-03-211-1/+1
| | | | | | | MFC after: 1 week Notes: svn path=/head/; revision=219833
* In hast.conf we define the other node's address in 'remote' variable.Pawel Jakub Dawidek2011-03-211-0/+2
| | | | | | | | | | | | | | | | | | | | | This way we know how to connect to secondary node when we are primary. The same variable is used by the secondary node - it only accepts connections from the address stored in 'remote' variable. In cluster configurations it is common that each node has its individual IP address and there is one addtional shared IP address which is assigned to primary node. It seems it is possible that if the shared IP address is from the same network as the individual IP address it might be choosen by the kernel as a source address for connection with the secondary node. Such connection will be rejected by secondary, as it doesn't come from primary node individual IP. Add 'source' variable that allows to specify source IP address we want to bind to before connecting to the secondary node. MFC after: 1 week Notes: svn path=/head/; revision=219818
* Allow to compress on-the-wire data using two algorithms:Pawel Jakub Dawidek2011-03-061-0/+3
| | | | | | | | | | | | | | - HOLE - it simply turns all-zero blocks into few bytes header; it is extremely fast, so it is turned on by default; it is mostly intended to speed up initial synchronization where we expect many zeros; - LZF - very fast algorithm by Marc Alexander Lehmann, which shows very decent compression ratio and has BSD license. MFC after: 2 weeks Notes: svn path=/head/; revision=219354
* Allow to checksum on-the-wire data using either CRC32 or SHA256.Pawel Jakub Dawidek2011-03-061-0/+3
| | | | | | | MFC after: 2 weeks Notes: svn path=/head/; revision=219351
* Setup another socketpair between parent and child, so that primary sandboxedPawel Jakub Dawidek2011-02-031-0/+4
| | | | | | | | | | | | worker can ask the main privileged process to connect in worker's behalf and then we can migrate descriptor using this socketpair to worker. This is not really needed now, but will be needed once we start to use capsicum for sandboxing. MFC after: 1 week Notes: svn path=/head/; revision=218218
* Remember created control connection so on fork(2) we can close it in child.Pawel Jakub Dawidek2011-01-271-0/+2
| | | | | | | | Found with: procstat(1) MFC after: 1 week Notes: svn path=/head/; revision=217969
* Don't open configuration file from worker process. Handle SIGHUP in thePawel Jakub Dawidek2011-01-241-1/+12
| | | | | | | | | | | 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 Notes: svn path=/head/; revision=217784
* Add missing logs.Pawel Jakub Dawidek2011-01-221-4/+5
| | | | | | | MFC after: 1 week Notes: svn path=/head/; revision=217737
* Use int16 for error.Pawel Jakub Dawidek2011-01-221-1/+1
| | | | | | | MFC after: 1 week Notes: svn path=/head/; revision=217730
* We close the event socketpair early in the mainloop to prevent spaming withPawel Jakub Dawidek2010-10-081-2/+4
| | | | | | | | | | | error messages, so when we clean up after child process, we have to check if the event socketpair is still there. Submitted by: Mikolaj Golub <to.my.trociny@gmail.com> MFC after: 3 days Notes: svn path=/head/; revision=213579
* Fix descriptor leaks: when child exits, we have to close control and eventPawel Jakub Dawidek2010-09-221-1/+13
| | | | | | | | | socket pairs. We did that only in one case out of three. MFC after: 3 days Notes: svn path=/head/; revision=213006
* If we are unable to receive control message is most likely because the mainPawel Jakub Dawidek2010-09-221-1/+2
| | | | | | | | | process died. Instead of entering infinite loop, terminate. MFC after: 3 days Notes: svn path=/head/; revision=213004
* Sort includes.Pawel Jakub Dawidek2010-09-221-1/+1
| | | | | | | MFC after: 3 days Notes: svn path=/head/; revision=213003
* - Call hook on role change.Pawel Jakub Dawidek2010-08-291-0/+5
| | | | | | | | | | - Document new event. MFC after: 2 weeks Obtained from: Wheel Systems Sp. z o.o. http://www.wheelsystems.com Notes: svn path=/head/; revision=211978
* Make control_set_role() more public. We will need it soon.Pawel Jakub Dawidek2010-08-051-10/+17
| | | | | | | MFC after: 1 month Notes: svn path=/head/; revision=210882
* Please welcome HAST - Highly Avalable Storage.Pawel Jakub Dawidek2010-02-181-0/+426
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 Notes: svn path=/head/; revision=204076
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