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Red Hat Bugzilla – Attachment 627416 Details for
Bug 831648
rgmanager prefers 2 nodes in 3 nodes cluster
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[patch]
Proposed patch
bz83164.patch (text/plain), 2.11 KB, created by
Ryan McCabe
on 2012-10-15 13:25:02 UTC
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Description:
Proposed patch
Filename:
MIME Type:
Creator:
Ryan McCabe
Created:
2012-10-15 13:25:02 UTC
Size:
2.11 KB
patch
obsolete
>diff --git a/rgmanager/include/members.h b/rgmanager/include/members.h >index 7e99e17..09f7a9a 100644 >--- a/rgmanager/include/members.h >+++ b/rgmanager/include/members.h >@@ -27,6 +27,7 @@ char * memb_id_to_name(cluster_member_list_t *ml, int nodeid); > cman_node_t * memb_id_to_p(cluster_member_list_t *ml, int nodeid); > cman_node_t * memb_name_to_p(cluster_member_list_t *ml, char *name); > void free_member_list(cluster_member_list_t *ml); >+void member_list_shuffle(cluster_member_list_t *ml); > cluster_member_list_t *memb_gained(cluster_member_list_t *old, > cluster_member_list_t *new); > cluster_member_list_t *memb_lost(cluster_member_list_t *old, >diff --git a/rgmanager/src/clulib/members.c b/rgmanager/src/clulib/members.c >index 5f98708..715fe39 100644 >--- a/rgmanager/src/clulib/members.c >+++ b/rgmanager/src/clulib/members.c >@@ -11,6 +11,7 @@ > #include <signal.h> > #include <string.h> > #include <sys/socket.h> >+#include <sys/time.h> > #include <rg_types.h> > #include <pthread.h> > #include <errno.h> >@@ -501,3 +502,22 @@ member_list_dup(cluster_member_list_t *orig) > return ret; > } > >+void member_list_shuffle(cluster_member_list_t *ml) { >+ int i; >+ unsigned st; >+ struct timeval tv; >+ >+ gettimeofday(&tv, NULL); >+ st = (int)(tv.tv_usec); >+ >+ >+ for (i = 0 ; i < ml->cml_count ; i++) { >+ cman_node_t temp; >+ int newidx = rand_r(&st) % ml->cml_count; >+ if (newidx == i) >+ continue; >+ memcpy(&temp, &ml->cml_members[i], sizeof(cman_node_t)); >+ memcpy(&ml->cml_members[i], &ml->cml_members[newidx], sizeof(cman_node_t)); >+ memcpy(&ml->cml_members[newidx], &temp, sizeof(cman_node_t)); >+ } >+} >diff --git a/rgmanager/src/daemons/rg_state.c b/rgmanager/src/daemons/rg_state.c >index 80e8667..59454bf 100644 >--- a/rgmanager/src/daemons/rg_state.c >+++ b/rgmanager/src/daemons/rg_state.c >@@ -1924,6 +1924,7 @@ handle_relocate_req(char *svcName, int orig_request, int preferred_target, > allowed_nodes = member_list(); > //count_resource_groups(allowed_nodes); > } >+ member_list_shuffle(allowed_nodes); > > if (preferred_target > 0) > memb_mark_down(allowed_nodes, preferred_target);
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bug 831648
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