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DAOS-18326 rebuild: indefinitely retry for NOMEM error #17435

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DAOS-18326 rebuild: indefinitely retry for NOMEM error #17435

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71c270c
DAOS-18326 rebuild: indefinitely retry for NOMEM error
gnailzenh Jan 21, 2026
aab47fe
re-trigger test with unstable
daltonbohning Jan 25, 2026
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17 changes: 14 additions & 3 deletions src/object/srv_obj_migrate.c
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
/**
* (C) Copyright 2019-2024 Intel Corporation.
* (C) Copyright 2025 Hewlett Packard Enterprise Development LP
* (C) Copyright 2025-2026 Hewlett Packard Enterprise Development LP
*
* SPDX-License-Identifier: BSD-2-Clause-Patent
*/
Expand Down Expand Up @@ -752,6 +752,7 @@ mrone_obj_fetch_internal(struct migrate_one *mrone, daos_handle_t oh, d_sg_list_
d_iov_t *csum_iov_fetch, struct migrate_pool_tls *tls)
{
uint32_t *extra_arg = NULL;
int waited = 0;
int rc;

/* pass rebuild epoch by extra_arg */
Expand All @@ -760,11 +761,10 @@ mrone_obj_fetch_internal(struct migrate_one *mrone, daos_handle_t oh, d_sg_list_
mrone->mo_epoch);
extra_arg = (uint32_t *)mrone->mo_epoch;
}

retry:
rc = dsc_obj_fetch(oh, eph, &mrone->mo_dkey, iod_num, iods, sgls, NULL, flags, extra_arg,
csum_iov_fetch);
if ((rc == -DER_TIMEDOUT || rc == -DER_FETCH_AGAIN) &&
if ((rc == -DER_TIMEDOUT || rc == -DER_FETCH_AGAIN || rc == -DER_NOMEM) &&
tls->mpt_version + 1 >= tls->mpt_pool->spc_map_version) {
if (tls->mpt_fini) {
DL_ERROR(rc, DF_RB ": dsc_obj_fetch " DF_UOID "failed when mpt_fini",
Expand All @@ -776,6 +776,17 @@ mrone_obj_fetch_internal(struct migrate_one *mrone, daos_handle_t oh, d_sg_list_
*/
D_WARN(DF_UUID" retry "DF_UOID" "DF_RC"\n",
DP_UUID(tls->mpt_pool_uuid), DP_UOID(mrone->mo_oid), DP_RC(rc));
if (rc == -DER_NOMEM) {
/* sleep 10 seconds before retry, give other layers a chance to
* release resources.
*/
dss_sleep(10 * 1000);
if (waited != 0 && waited % 3600 == 0) {
DL_ERROR(rc, DF_RB ": waited for memory for %d hour(s)",
DP_RB_MPT(tls), waited / 3600);
}
}
waited += 10;
D_GOTO(retry, rc);
}

Expand Down
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