Distributed Network Block Device 3 --rewrite for Kernel 3.x https://git.openslx.org/dnbd3.git/atom/src/server/globals.c?h=isfant 2021-05-11T07:43:37+00:00 2021-05-11T07:43:37+00:00 Simon Rettberg 2021-05-11T07:43:37+00:00 urn:sha1:609ca9001343b90338d9e61d63ffc78b5b99a63c Any request from a client being relayed to an uplink server will have its size extended to this value. It will also be applied to background replication requests, if the BGR mode is FULL. As request coalescing is currently very primitive, this setting should usually be left diabled, and bgrWindowSize used instead, if appropriate. If you enable this, set it to something large (1M+), or it might have adverse effects. 2021-04-14T11:17:59+00:00 Simon Rettberg 2021-04-13T14:41:26+00:00 urn:sha1:0be00336f97a7ef3590ee803d4ad19e305aa1583 There is a race condition where we process the next request from the same client faster than the OS will schedule the async prefetch job, rendering it a NOOP in the best case (request ranges match) or fetching redundant data from the upstream server (prefetch range is larger than actual request by client). Make prefetching synchronous to prevent this race condition. 2020-10-16T15:15:49+00:00 Manuel Bentele 2020-10-16T15:15:49+00:00 urn:sha1:969496f15e1e0359e26c2c6e995ad4ef82720f86 This change restructures the source code directories, separates shared form non-shared application code and adds CMake dependencies. These dependencies allow the tracking of changes and trigger a rebuild of those build targets where changed files are involved. WARNING: Note that the support of the DNBD3_SERVER_AFL build option is not supported yet. Thus, the option should be never turned on. 2020-03-17T12:26:06+00:00 Simon Rettberg 2020-03-17T12:26:06+00:00 urn:sha1:79d36aa260f49716ede72cd6bea5cf10aa688651 2020-03-13T15:03:29+00:00 Simon Rettberg 2020-03-13T15:03:29+00:00 urn:sha1:290d3478f245bb7d2112bb781286a9fbae42b983 - Now uses linked lists instead of huge array - Does prefetch data on client requests - Can have multiple replication requests in-flight 2020-03-06T14:00:46+00:00 Simon Rettberg 2020-03-06T14:00:46+00:00 urn:sha1:ff4e770e645c05da48baddb30a77b9dc15ca76fd 2020-02-24T13:13:01+00:00 Simon Rettberg 2020-02-24T13:13:01+00:00 urn:sha1:dd0880b8ee67f9a69802a2a3ef26cd5df6881129 If enabled, a failed fallocate will not abort image replication, but retry with sparse mode. 2019-09-05T16:15:52+00:00 Simon Rettberg 2019-09-05T16:15:52+00:00 urn:sha1:bf665f59411840c60b6e3c9ac33f28a818233c0a This setting allows you to control the formerly hard-coded timeout of 10 hours before a proxy would start deleting old images in order to free up space for new images. Setting it to -1 entirely disables automatic deletion, in case you have an external process for freeing up disk space. 2019-08-07T15:11:51+00:00 Simon Rettberg 2019-08-07T15:11:51+00:00 urn:sha1:be7d7d95850c30a154aaa56e95d6a7f36793409d Lock order is predefined in locks.h. Immediately bail out if a lock with lower priority is obtained while the same thread already holds one with higher priority. 2019-08-02T13:16:09+00:00 Simon Rettberg 2019-08-02T13:16:09+00:00 urn:sha1:de51181f0fb4c5b70bb893588a3d7d26e1a5c233