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* [SERVER] Fix deadlock on shutdown (via image_tryFreeAll)Simon Rettberg2018-04-241-4/+8
| | | | | imageListLock was locked on twice in the call stack, which is bad if you're using non-recursive locks.
* [SERVER] Acquire write lock before initializing arraySimon Rettberg2018-04-161-1/+5
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* [SERVER] Add bgrMinClients: Thresold to control when BGR startsSimon Rettberg2018-04-123-5/+16
| | | | | Background replication will not kick in if there aren't at least that many clients connected.
* [SERVER] Mark spammy replication messages as DEBUG2 instead of 1Simon Rettberg2018-04-111-3/+3
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* [SERVER] Option to disable timestamps on stdout/console (default: disabled)Simon Rettberg2018-04-114-9/+31
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* [SERVER] More error handling and logging when caching received data to diskSimon Rettberg2018-04-101-4/+13
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* [SERVER] Ignore SIGPIPESimon Rettberg2018-04-101-0/+1
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* [SERVER] Error handling and logging when saving cache mapSimon Rettberg2018-04-101-24/+37
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* [SHARED] Reset errnoSimon Rettberg2018-04-051-0/+2
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* [KERNEL] Pre/post 4.11 handling of request opsJonathan Bauer2018-04-052-11/+30
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* [KERNEL] #ifs and #defines for timer pre/post 4.15Simon Rettberg2018-04-052-13/+18
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* [KERNEL] Macros for packing CMD_* into struct requestSimon Rettberg2018-03-271-4/+21
| | | | Version check for pre or post 4.11
* Follow https://lwn.net/Articles/735887/Rafael Gieschke2018-03-242-4/+16
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* Include `linux/signal.h` for `siginitsetinv`, `sigmask`, `sigprocmask`Rafael Gieschke2018-03-241-0/+1
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* Follow ↵Rafael Gieschke2018-03-232-11/+11
| | | | https://github.com/torvalds/linux/commit/aebf526b53aea164508730427597d45f3e06b376
* [SERVER] Delete image files after releasing image to get rid of stale .map filesSimon Rettberg2018-03-191-7/+9
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* [SERVER] image.c: Add size to RPC data, rename bytesReceived, always add ↵Simon Rettberg2018-03-191-7/+11
| | | | uplink if existent
* [SERVER] Increase read() block size when calculating CRC32Simon Rettberg2018-03-191-1/+1
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* [SERVER] image_getCompletenessEstimate: Fix reversed logic in timeout checkSimon Rettberg2018-03-191-1/+3
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* [SERVER] Fix int overflows on 32bit builds in CRC generationSimon Rettberg2018-03-162-7/+7
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* [SERVER] Make sparse file mode actually workSimon Rettberg2018-03-163-9/+24
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* [SERVER] Experimental support for sparse files in proxy modeSimon Rettberg2018-03-155-11/+67
| | | | | | | | | | | | Will not preallocate images in this mode. Old images are only deleted if the disk is full, determined by write() calls to the cache file yielding ENOSPC or EDQUOT. In such a case, the least recently used image(s) will be deleted to free up at least 256MiB, and then the write() call will be repeated. This *should* work somewhat reliably unless the cache partition is ridiculously small. Performance might suffer a little, and disk fragmentation might occur much faster than in prealloc mode. Testing is needed.
* [SERVER] Make TSAN happySimon Rettberg2017-12-191-1/+3
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* [SERVER] jansson < 2.6 compatSimon Rettberg2017-11-101-0/+5
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* [SERVER] Check RLIMIT_NOFILE on startup and try to increase if requiredSimon Rettberg2017-11-081-0/+39
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* [SERVER] altservers: Short timeout during RTT measurement, round request rangeSimon Rettberg2017-11-082-5/+10
| | | | | Rounding to 4k so caching works efficiently This should now close #3231
* [SERVER] rpc: Add q=logfile, q=altservers and q=config to /querySimon Rettberg2017-11-085-8/+77
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* [SERVER] Add multiple config options for limiting stuffSimon Rettberg2017-11-086-20/+183
| | | | | maxClients, maxImages, maxPayload, maxReplicationSize Refs #3231
* [SERVER] altservers: Tweak, cleanup, refactor, renameSimon Rettberg2017-11-085-27/+40
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* [SERVER] Properly clamp to 4k borders in updateCachemap()Simon Rettberg2017-11-071-2/+9
| | | | Refs #3231
* [SERVER] Use multiConnect() to find uplink for replicationSimon Rettberg2017-11-072-13/+38
| | | | | Just as in the fuse client, this will speed things up if we have several alt-servers in our list which are not reachable.
* [FUSE] Split final multiConnect-wait across multiple callsSimon Rettberg2017-11-071-8/+8
| | | | | | There might be more than one pending connect, but each call to multiConnect() can return at most one fd, so we could be ignoring some successful connections.
* [SHARED] Add log_hasMask() to check if a certain loglevel is setSimon Rettberg2017-11-072-0/+11
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* [FUSE] Reset salen before getpeername() callSimon Rettberg2017-11-071-1/+2
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* [FUSE] Make use of sock_multiConnect() for initial connectionSimon Rettberg2017-11-061-10/+36
| | | | | | This speeds up initialization with a long list of servers where the first in the list don't work, as the delay between servers is now lowered to 100ms.
* [SHARED] Add sockaddr2dnbd3 func, add multiConnect func, EINTR handlingSimon Rettberg2017-11-062-30/+141
| | | | | | | | | | EINTR was apparently not handled properly on non-linux for the connect() syscall. sockaddr2dnbd3 is what resolveToDnbd3Host already did internally, now it's its own function. sock_multiConnect() is a wrapper around connect() and poll, making it easy to connect to multiple hosts in a cascaded manner, with a slight delay between connect calls.
* [FUSE] Remember up to 16 alt servers, but work only with 5Simon Rettberg2017-11-041-8/+59
| | | | | | | 5 servers are considered "active", that is, are being measured for their RTT regularly. If We have more than 5 servers and one of the active ones isn't reachable repeatedly, the two servers will swap position.
* [SERVER] Support finer control over replication when a proxy connects to a proxySimon Rettberg2017-11-026-4/+39
| | | | | | | Introduce new flag in "select image" message to tell the uplink server whether we have background replication enabled or not. Also reject a connecting proxy if the connecting proxy uses BGR but we don't, as this would basically force the image to be replicated locally too.
* [FUSE] Fix printf warning for logadd callSimon Rettberg2017-11-021-1/+1
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* [SERVER] Add --errormsg to only serve HTTP-JSON error codeSimon Rettberg2017-11-023-29/+65
| | | | | This could have been an external tool, but this didn't add much code and has the benefit of honoring the config file for port and bind address.
* [SERVER] Ignore invalid basePath in globals.c, do bailout in server.cSimon Rettberg2017-11-021-9/+12
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* [SERVER] Clean up arguments, show version on startupSimon Rettberg2017-11-021-13/+8Star
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* [SERVER] rpc: Keep track of and cap number of active http sessionsSimon Rettberg2017-11-011-11/+57
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* [SERVER] rpc: Remove old TODO, set thread name for persistent connectionsSimon Rettberg2017-11-011-1/+5
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* [SERVER] Since fuse client assumed no backwards compat before v3, lie to clientsSimon Rettberg2017-11-011-1/+1
| | | | | | If client reports protocol version < 3 on connect, just pretend we're at the same version. This sucks but we can't update servers before clients otherwise. :(
* [FUSE] Improve log messages a bitSimon Rettberg2017-11-011-2/+5
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* [*] Mark logadd() as printf-style function, fix errors that it revealedSimon Rettberg2017-10-317-11/+13
| | | | ...there were quite a few format string errors as it turns out :/
* [SERVER] net.c: Refactoring and renamingSimon Rettberg2017-10-311-58/+33Star
| | | | | | Less copy & paste for sendfile alternatives, changed naming of old dnbd3_* functions moved over from server.c a while ago.
* [SERVER] Image list private to image.cSimon Rettberg2017-10-312-5/+2Star
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* [SERVER] rpc: encoding of our reply is utf-8, add to reply headerSimon Rettberg2017-10-301-1/+1
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