summaryrefslogtreecommitdiffstats
path: root/tests/volume.rc
diff options
context:
space:
mode:
authorMohammed Rafi KC <rkavunga@redhat.com>2019-02-25 10:05:32 +0530
committerAmar Tumballi <amarts@redhat.com>2019-04-01 03:44:23 +0000
commitbc3694d7cfc868a2ed6344ea123faf19fce28d13 (patch)
tree51764aa4445462081273444d5ff2499b1e5375f7 /tests/volume.rc
parent92ae26ae8039847e38c738ef98835a14be9d4296 (diff)
mgmt/shd: Implement multiplexing in self heal daemon
Problem: Shd daemon is per node, which means they create a graph with all volumes on it. While this is a great for utilizing resources, it is so good in terms of performance and managebility. Because self-heal daemons doesn't have capability to automatically reconfigure their graphs. So each time when any configurations changes happens to the volumes(replicate/disperse), we need to restart shd to bring the changes into the graph. Because of this all on going heal for all other volumes has to be stopped in the middle, and need to restart all over again. Solution: This changes makes shd as a per volume daemon, so that the graph will be generated for each volumes. When we want to start/reconfigure shd for a volume, we first search for an existing shd running on the node, if there is none, we will start a new process. If already a daemon is running for shd, then we will simply detach a graph for a volume and reatach the updated graph for the volume. This won't touch any of the on going operations for any other volumes on the shd daemon. Example of an shd graph when it is per volume graph ----------------------- | debug-iostat | ----------------------- / | \ / | \ --------- --------- ---------- | AFR-1 | | AFR-2 | | AFR-3 | -------- --------- ---------- A running shd daemon with 3 volumes will be like--> graph ----------------------- | debug-iostat | ----------------------- / | \ / | \ ------------ ------------ ------------ | volume-1 | | volume-2 | | volume-3 | ------------ ------------ ------------ Change-Id: Idcb2698be3eeb95beaac47125565c93370afbd99 fixes: bz#1659708 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Diffstat (limited to 'tests/volume.rc')
-rw-r--r--tests/volume.rc6
1 files changed, 4 insertions, 2 deletions
diff --git a/tests/volume.rc b/tests/volume.rc
index fe6074b..1adc5b1 100644
--- a/tests/volume.rc
+++ b/tests/volume.rc
@@ -237,11 +237,13 @@ function ec_child_up_count_shd {
}
function get_shd_process_pid {
- ps auxww | grep glusterfs | grep -E "glustershd/glustershd.pid" | awk '{print $2}' | head -1
+ local vol=$1
+ ps auxww | grep "process-name\ glustershd" | awk '{print $2}' | head -1
}
function generate_shd_statedump {
- generate_statedump $(get_shd_process_pid)
+ local vol=$1
+ generate_statedump $(get_shd_process_pid $vol)
}
function generate_nfs_statedump {