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* glusterd: restart the brick if qorum status is NOT_APPLICABLE_QUORUMAtin Mukherjee2017-11-141-1/+2
| | | | | | | | | | | | | | If a volume is not having server quorum enabled and in a trusted storage pool all the glusterd instances from other peers are down, on restarting glusterd the brick start trigger doesn't happen resulting into the brick not coming up. > mainline patch : https://review.gluster.org/#/c/18669/ Change-Id: If1458e03b50a113f1653db553bb2350d11577539 BUG: 1511293 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> (cherry picked from commit 635c1c3691a102aa658cf1219fa41ca30dd134ba)
* glusterd: fix brick restart parallelismAtin Mukherjee2017-11-011-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | glusterd's brick restart logic is not always sequential as there is atleast three different ways how the bricks are restarted. 1. through friend-sm and glusterd_spawn_daemons () 2. through friend-sm and handling volume quorum action 3. through friend handshaking when there is a mimatch on quorum on friend import. In a brick multiplexing setup, glusterd ended up trying to spawn the same brick process couple of times as almost in fraction of milliseconds two threads hit glusterd_brick_start () because of which glusterd didn't have any choice of rejecting any one of them as for both the case brick start criteria met. As a solution, it'd be better to control this madness by two different flags, one is a boolean called start_triggered which indicates a brick start has been triggered and it continues to be true till a brick dies or killed, the second is a mutex lock to ensure for a particular brick we don't end up getting into glusterd_brick_start () more than once at same point of time. Change-Id: I292f1e58d6971e111725e1baea1fe98b890b43e2 BUG: 1506513 Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
* glusterd: persist brickinfo's port change into glusterd's storeGaurav Yadav2017-10-311-0/+16
| | | | | | | | | | | | | | | | | | Problem: Consider a case where node reboot is performed and prior to reboot brick was listening to 49153. Post reboot glusterd assigned 49152 to brick and started the brick process but the new port was never persisted. Now when glusterd restarts glusterd always read the port from its persisted store i.e 49153 however pmap signin happens with the correct port i.e 49152. Fix: Make sure when glusterd_brick_start is called, glusterd_store_volinfo is eventually invoked. Change-Id: Ic0efbd48c51d39729ed951a42922d0e59f7115a1 BUG: 1506589 Signed-off-by: Gaurav Yadav <gyadav@redhat.com>
* glusterd: streamline logic flow in glusterd_validate_quorum()Michael Adam2017-08-011-5/+7
| | | | | | | | | | | | | | | | | | | Make an earlier exit when the volume is not of server quorum. Thereby it spares the actual quorum calculation in this case. This also increases the overall readability of the function. The patch is best seen with the --patience diff option to understand what it does (e.g. "git show --patience"). Change-Id: Ifce50bc3f73d79d3d6226473661a83696d65149a BUG: 1476719 Signed-off-by: Michael Adam <obnox@samba.org> Reviewed-on: https://review.gluster.org/17924 Smoke: Gluster Build System <jenkins@build.gluster.org> Tested-by: Atin Mukherjee <amukherj@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* glusterd: improve intuitivity of check in glusterd_get_quorum_cluster_countsMichael Adam2017-07-311-1/+1
| | | | | | | | | | | | | More intuitive to check for ret == 0 than !ret here... Change-Id: I8177a0bc8f266331187f5f2eeefea8a25cfcb30a Signed-off-by: Michael Adam <obnox@samba.org> BUG: 1476410 Reviewed-on: https://review.gluster.org/17912 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Atin Mukherjee <amukherj@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
* glusterd: fix quorum calculation if percentage is not specified correctlyMichael Adam2017-06-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | There was an extra "ratio = _gf_true". - In case the ratio was specified correctly in the volfile, this is redundant. - In case the ratio was specified, but not parseable into a precentage, this is wrong and would lead to a quorum count of 0 instead of falling back to the default of 50% + 1. This patch removes the extra setting of "ratio". Change-Id: I2bd57ebf1b8989e905481a2b6285a1f422942f72 BUG: 1461129 Signed-off-by: Michael Adam <obnox@samba.org> Reviewed-on: https://review.gluster.org/17538 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Atin Mukherjee <amukherj@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org>
* glusterd (server-quorum): fix unused variable warnings/errorsKaleb S. KEITHLEY2016-09-051-4/+13
| | | | | | | | | | | | | | | | | http://review.gluster.org/14085 fixes a/the "leak" - via the generated rpc/xdr headers - of pragmas that mask these warnings. However 14085 won't pass the smoke test until all the warnings are fixed. Change-Id: I53961a9ddbba824ea3cfa00abbba20109da5de89 BUG: 1369124 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/15276 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* glusterd: add async events (part 2)Atin Mukherjee2016-08-231-0/+2
| | | | | | | | | | | Change-Id: I7a5687143713c283f0051aac2383f780e3e43646 BUG: 1360809 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/15153 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Samikshan Bairagya <samikshan@gmail.com>
* glusterd: Don't start bricks if server quorum is not metSamikshan Bairagya2016-07-051-4/+6
| | | | | | | | | | | | | | | | | | | | | Upon glusterd restart if it is observered that the server quorum isn't met anymore due to changes to the "server-quorum-ratio" global option, the bricks should be stopped if they are running. Also if glusterd has been restarted, and if server quorum is not applicable for a volume, do not restart the bricks corresponding to the volume to make sure that bricks that have been brought down purposely, say for maintenance, are not brought up. This commit moves this check that was previously inside "glusterd_spawn_daemons" to "glusterd_restart_bricks" instead. Change-Id: I0a44a2e7cad0739ed7d56d2d67ab58058716de6b BUG: 1345727 Signed-off-by: Samikshan Bairagya <samikshan@gmail.com> Reviewed-on: http://review.gluster.org/14758 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* glusterd: check quorum on restart bricksAtin Mukherjee2016-02-051-4/+25
| | | | | | | | | | | | | | While spawning bricks on a glusterd restart the quorum should be checked and brick shouldn't be started if the volume doesn't meet quorum. Change-Id: I21bf9055bdf38c53c81138cc204ba05a9ff6444f BUG: 1298439 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/13236 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* all: reduce "inline" usageJeff Darcy2015-09-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | There are three kinds of inline functions: plain inline, extern inline, and static inline. All three have been removed from .c files, except those in "contrib" which aren't our problem. Inlines in .h files, which are overwhelmingly "static inline" already, have generally been left alone. Over time we should be able to "lower" these into .c files, but that has to be done in a case-by-case fashion requiring more manual effort. This part was easy to do automatically without (as far as I can tell) any ill effect. In the process, several pieces of dead code were flagged by the compiler, and were removed. Change-Id: I56a5e614735c9e0a6ee420dab949eac22e25c155 BUG: 1245331 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/11769 Tested-by: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com>
* glusterd: fix quorum calculation logicAtin Mukherjee2015-06-241-6/+1
| | | | | | | | | | | | | | | glusterd_get_quorum_cluster_counts () skips quorum calculation if it finds any of its peer in QUORUM_WAITING state. This means if any peer probe has been triggered and at the same point of time a transaction has been initiated, it might pass through the server quorum check which it should not. Change-Id: I44eda8905eab3349c9ebf2842e7131d4e758a528 BUG: 1232686 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/11275 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Anand Nekkunti <anekkunt@redhat.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org>
* build: do not #include "config.h" in each fileNiels de Vos2015-05-291-5/+0
| | | | | | | | | | | | | | | | | | Instead of including config.h in each file, and have the additional config.h included from the compiler commandline (-include option). When a .c file tests for a certain #define, and config.h was not included, incorrect assumtions were made. With this change, it can not happen again. BUG: 1222319 Change-Id: I4f9097b8740b81ecfe8b218d52ca50361f74cb64 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/10808 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* glusterd: compute quorum on peers in clusterKrishnan Parthasarathi2015-04-021-36/+19
| | | | | | | | | | | | ... and not on peers participating in an ongoing transaction. Change-Id: I6bdb80fd3bf3e7593fdf37e45a441d4a490469b8 BUG: 1205592 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/9493 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd: Fix rebase errors introduced by 4b18fbaVijay Bellur2015-04-021-11/+13
| | | | | | | | | | | | | | | | | | | | | | | | 4b18fba 'glusterd: group server-quorum related code together' a refactoring change, introduced some errors related to usage of userspace-rcu lists when rebasing. This patch fixes it. Changes done include, - Redo changes done by 673ba26 glusterd: Replace libglusterfs lists with liburcu lists - Redo changes done by c7785f7 glusterd: Protect the peer list and peerinfos with RCU. - Redo changes done by 891c7d0 glusterd: Prevent possible deadlock due to glusterd_quorum_count Change-Id: I789e5bc8b209d9ed6dd951d609baa90e89817639 BUG: 1205592 Signed-off-by: Vijay Bellur <vbellur@redhat.com> Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/10105 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd: group server-quorum related code togetherKrishnan Parthasarathi2015-04-011-0/+423
Server-quorum implementation was spread in many files. This patch brings them all together into a single file, namely glusterd-server-quorum.c. All exported functions are available via glusterd-server-quorum.h Change-Id: I8fd77114b5bc6b05127cb8a6a641e0295f0be7bb BUG: 1205592 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/9492 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
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