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pacemaker.13547
pacemaker-pengine-functionize-common-ordering-t...
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File pacemaker-pengine-functionize-common-ordering-tasks.patch of Package pacemaker.13547
commit e57cbc5b85d3459d7a6f004f6252ffd1e60a51d5 Author: Ken Gaillot <kgaillot@redhat.com> Date: Tue Aug 22 16:40:15 2017 -0500 Refactor: pengine: functionize common ordering tasks Enhances readability The only functional difference is that demotes of resources on guest nodes will now get pe_order_runnable_left when ordered relative to the guest node connection start (and the container is not failed). It was already used in comparable situations, and makes sense. Index: pacemaker-1.1.16+20170320.77ea74d/pengine/allocate.c =================================================================== --- pacemaker-1.1.16+20170320.77ea74d.orig/pengine/allocate.c +++ pacemaker-1.1.16+20170320.77ea74d/pengine/allocate.c @@ -1192,6 +1192,37 @@ allocate_resources(pe_working_set_t * da } } +/* We always use pe_order_preserve with these convenience functions to exempt + * internally generated constraints from the prohibition of user constraints + * involving remote connection resources. + * + * The start ordering additionally uses pe_order_runnable_left so that the + * specified action is not runnable if the start is not runnable. + */ + +static inline void +order_start_then_action(resource_t *lh_rsc, action_t *rh_action, + enum pe_ordering extra, pe_working_set_t *data_set) +{ + if (lh_rsc && rh_action && data_set) { + custom_action_order(lh_rsc, start_key(lh_rsc), NULL, + rh_action->rsc, NULL, rh_action, + pe_order_preserve | pe_order_runnable_left | extra, + data_set); + } +} + +static inline void +order_action_then_stop(action_t *lh_action, resource_t *rh_rsc, + enum pe_ordering extra, pe_working_set_t *data_set) +{ + if (lh_action && rh_rsc && data_set) { + custom_action_order(lh_action->rsc, NULL, lh_action, + rh_rsc, stop_key(rh_rsc), NULL, + pe_order_preserve | extra, data_set); + } +} + static void cleanup_orphans(resource_t * rsc, pe_working_set_t * data_set) { @@ -1221,9 +1252,12 @@ cleanup_orphans(resource_t * rsc, pe_wor CRM_XS " %s", rsc->id, node->details->uname, clear_op->uuid); - custom_action_order(rsc, NULL, clear_op, - rsc, generate_op_key(rsc->id, RSC_STOP, 0), NULL, - pe_order_optional, data_set); + /* We can't use order_action_then_stop() here because its + * pe_order_preserve breaks things + */ + custom_action_order(clear_op->rsc, NULL, clear_op, + rsc, stop_key(rsc), NULL, + pe_order_optional, data_set); } } } @@ -1804,14 +1838,12 @@ apply_container_ordering(action_t *actio case start_rsc: case action_promote: /* Force resource recovery if the container is recovered */ - custom_action_order(container, generate_op_key(container->id, RSC_START, 0), NULL, - action->rsc, NULL, action, - pe_order_preserve | pe_order_implies_then | pe_order_runnable_left, data_set); + order_start_then_action(container, action, pe_order_implies_then, + data_set); /* Wait for the connection resource to be up too */ - custom_action_order(remote_rsc, generate_op_key(remote_rsc->id, RSC_START, 0), NULL, - action->rsc, NULL, action, - pe_order_preserve | pe_order_runnable_left, data_set); + order_start_then_action(remote_rsc, action, pe_order_none, + data_set); break; case stop_rsc: if(is_set(container->flags, pe_rsc_failed)) { @@ -1823,9 +1855,8 @@ apply_container_ordering(action_t *actio */ } else { /* Otherwise, ensure the operation happens before the connection is brought down */ - custom_action_order(action->rsc, NULL, action, - remote_rsc, generate_op_key(remote_rsc->id, RSC_STOP, 0), NULL, - pe_order_preserve, data_set); + order_action_then_stop(action, remote_rsc, pe_order_none, + data_set); } break; case action_demote: @@ -1841,9 +1872,8 @@ apply_container_ordering(action_t *actio } else { /* Otherwise, ensure the operation happens before the connection is brought down */ - custom_action_order(action->rsc, NULL, action, - remote_rsc, generate_op_key(remote_rsc->id, RSC_STOP, 0), NULL, - pe_order_preserve, data_set); + order_action_then_stop(action, remote_rsc, pe_order_none, + data_set); } break; default: @@ -1853,13 +1883,13 @@ apply_container_ordering(action_t *actio * recurring monitors to be restarted, even if just * the connection was re-established */ - custom_action_order(remote_rsc, generate_op_key(remote_rsc->id, RSC_START, 0), NULL, - action->rsc, NULL, action, - pe_order_preserve | pe_order_runnable_left | pe_order_implies_then, data_set); + if(task != no_action) { + order_start_then_action(remote_rsc, action, + pe_order_implies_then, data_set); + } } else { - custom_action_order(remote_rsc, generate_op_key(remote_rsc->id, RSC_START, 0), NULL, - action->rsc, NULL, action, - pe_order_preserve | pe_order_runnable_left, data_set); + order_start_then_action(remote_rsc, action, pe_order_none, + data_set); } break; } @@ -1973,11 +2003,7 @@ apply_remote_ordering(action_t *action, switch (task) { case start_rsc: case action_promote: - /* This as an internally generated constraint exempt from - * user constraint prohibitions, and this action isn't runnable - * if the connection start isn't runnable. - */ - order_opts = pe_order_preserve | pe_order_runnable_left; + order_opts = pe_order_none; if (state == remote_state_failed) { /* Force recovery, by making this action required */ @@ -1985,10 +2011,7 @@ apply_remote_ordering(action_t *action, } /* Ensure connection is up before running this action */ - custom_action_order(remote_rsc, - generate_op_key(remote_rsc->id, RSC_START, 0), - NULL, action->rsc, NULL, action, order_opts, - data_set); + order_start_then_action(remote_rsc, action, order_opts, data_set); break; case stop_rsc: @@ -1997,9 +2020,8 @@ apply_remote_ordering(action_t *action, */ if(state == remote_state_resting) { /* Wait for the connection resource to be up and assume everything is as we left it */ - custom_action_order(remote_rsc, generate_op_key(remote_rsc->id, RSC_START, 0), NULL, - action->rsc, NULL, action, - pe_order_preserve | pe_order_runnable_left, data_set); + order_start_then_action(remote_rsc, action, pe_order_none, + data_set); } else { if(state == remote_state_failed) { @@ -2011,9 +2033,8 @@ apply_remote_ordering(action_t *action, pe_fence_node(data_set, action->node, "resources are active and the connection is unrecoverable"); } - custom_action_order(action->rsc, NULL, action, - remote_rsc, generate_op_key(remote_rsc->id, RSC_STOP, 0), NULL, - pe_order_preserve | pe_order_implies_first, data_set); + order_action_then_stop(action, remote_rsc, + pe_order_implies_first, data_set); } break; @@ -2023,9 +2044,8 @@ apply_remote_ordering(action_t *action, * blocked because the connection start would not be allowed. */ if(state == remote_state_resting || state == remote_state_unknown) { - custom_action_order(remote_rsc, generate_op_key(remote_rsc->id, RSC_START, 0), NULL, - action->rsc, NULL, action, - pe_order_preserve, data_set); + order_start_then_action(remote_rsc, action, pe_order_none, + data_set); } /* Otherwise we can rely on the stop ordering */ break; @@ -2036,9 +2056,8 @@ apply_remote_ordering(action_t *action, * recurring monitors to be restarted, even if just * the connection was re-established */ - custom_action_order(remote_rsc, generate_op_key(remote_rsc->id, RSC_START, 0), NULL, - action->rsc, NULL, action, - pe_order_preserve | pe_order_runnable_left | pe_order_implies_then, data_set); + order_start_then_action(remote_rsc, action, + pe_order_implies_then, data_set); } else { if(task == monitor_rsc && state == remote_state_failed) { @@ -2058,14 +2077,12 @@ apply_remote_ordering(action_t *action, * stopped _before_ we let the connection get * closed */ - custom_action_order(action->rsc, NULL, action, - remote_rsc, generate_op_key(remote_rsc->id, RSC_STOP, 0), NULL, - pe_order_preserve | pe_order_runnable_left, data_set); + order_action_then_stop(action, remote_rsc, + pe_order_runnable_left, data_set); } else { - custom_action_order(remote_rsc, generate_op_key(remote_rsc->id, RSC_START, 0), NULL, - action->rsc, NULL, action, - pe_order_preserve | pe_order_runnable_left, data_set); + order_start_then_action(remote_rsc, action, pe_order_none, + data_set); } } break;
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