Fix alloc_node validation when updating a job.

Bug 8047

NEWS

@@ -13,6 +13,7 @@ documents those changes that are of interest to users and administrators.
  -- Fix --ntasks-per-node in cons_tres.
  -- Fix array tasks getting same reject reason.
  -- Ignore DOWN/DRAIN partitions in reduce_completing_frag logic.
+ -- Fix alloc_node validation when updating a job.
 * Changes in Slurm 19.05.4
 ==========================

src/slurmctld/job_mgr.c

@@ -72,6 +72,7 @@
 #include "src/common/parse_time.h"
 #include "src/common/power.h"
 #include "src/common/slurm_accounting_storage.h"
+#include "src/common/slurm_auth.h"
 #include "src/common/slurm_jobcomp.h"
 #include "src/common/slurm_mcs.h"
 #include "src/common/slurm_priority.h"
@@ -13896,12 +13897,18 @@ fini:
 extern int update_job(slurm_msg_t *msg, uid_t uid, bool send_msg)
 {
 	job_desc_msg_t *job_specs = (job_desc_msg_t *) msg->data;
+	char *hostname = g_slurm_auth_get_host(msg->auth_cred);
 	struct job_record *job_ptr;
 	int rc;
 	xfree(job_specs->job_id_str);
 	xstrfmtcat(job_specs->job_id_str, "%u", job_specs->job_id);
+	if (hostname) {
+		xfree(job_specs->alloc_node);
+		job_specs->alloc_node = hostname;
+	}
+
 	job_ptr = find_job_record(job_specs->job_id);
 	if (job_ptr == NULL) {
 		info("%s: JobId=%u does not exist",
@@ -13930,6 +13937,7 @@ extern int update_job_str(slurm_msg_t *msg, uid_t uid)
 	slurm_msg_t resp_msg;
 	job_desc_msg_t *job_specs = (job_desc_msg_t *) msg->data;
+	char *hostname = g_slurm_auth_get_host(msg->auth_cred);
 	struct job_record *job_ptr, *new_job_ptr, *pack_job;
 	ListIterator iter;
 	long int long_id;
@@ -13946,6 +13954,12 @@ extern int update_job_str(slurm_msg_t *msg, uid_t uid)
 	job_id_str = job_specs->job_id_str;
+	if (hostname) {
+		xfree(job_specs->alloc_node);
+		job_specs->alloc_node = hostname;
+
+	}
+
 	if (max_array_size == NO_VAL)
 		max_array_size = slurmctld_conf.max_array_sz;