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DAOS-19226 cart: primary group incorrectly initialized on clients #18534

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DAOS-19226 cart: primary group incorrectly initialized on clients #18534

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62b7e1c
DAOS-19226 cart: primary group incorrectly initialized on clients
frostedcmos Jun 24, 2026
5a93a9c
- Some clients were incorrectly calling crt_group_rank() which
frostedcmos Jun 24, 2026
c0f80b4
- only call crt_group_rank() on server side
frostedcmos Jun 24, 2026
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13 changes: 3 additions & 10 deletions src/cart/crt_group.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1471,14 +1471,12 @@ crt_primary_grp_init(crt_group_id_t grpid)
{
struct crt_grp_gdata *grp_gdata;
struct crt_grp_priv *grp_priv = NULL;
crt_group_id_t pri_grpid;
bool is_service;
crt_group_id_t pri_grpid;
int rc = 0;

grp_gdata = crt_gdata.cg_grp;
D_ASSERT(grp_gdata != NULL);

is_service = crt_is_service();
pri_grpid = (grpid != NULL) ? grpid : CRT_DEFAULT_GRPID;

rc = crt_grp_priv_create(&grp_priv, pri_grpid, true);
Expand All @@ -1488,13 +1486,8 @@ crt_primary_grp_init(crt_group_id_t grpid)
}
D_ASSERT(grp_priv != NULL);

if (is_service) {
grp_priv->gp_self = CRT_NO_RANK;
grp_priv->gp_size = 0;
} else {
grp_priv->gp_size = 1;
grp_priv->gp_self = 0;
}
grp_priv->gp_self = CRT_NO_RANK;
grp_priv->gp_size = 0;

rc = grp_priv_init_membs(grp_priv, grp_priv->gp_size);
if (rc != 0) {
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4 changes: 4 additions & 0 deletions src/cart/crt_rpc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1180,6 +1180,10 @@ crt_req_is_self(struct crt_rpc_priv *rpc_priv)
bool same_rank;

D_ASSERT(rpc_priv != NULL);

if (!crt_is_service())
return false;

grp_priv_self = crt_grp_pub2priv(NULL);
tgt_ep = &rpc_priv->crp_pub.cr_ep;
same_group = (tgt_ep->ep_grp == NULL) ||
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