Panne du site
Suggérer des modifications
PDF
Le résultat d'une défaillance du site ou du système de stockage est presque identique au résultat de la perte du lien de réplication. Le site survivant doit subir une pause d'E/S d'environ 15 secondes sur les écritures. Une fois cette période de 15 secondes écoulée, l'E/S reprend sur ce site comme d'habitude.
Si seul le système de stockage a été affecté, le nœud Oracle RAC sur le site en panne perdra les services de stockage et entrera le même compte à rebours de 200 secondes avant la suppression et le redémarrage suivant.
2024-09-11 13:44:38.613 [ONMD(3629)]CRS-1615: No I/O has completed after 50% of the maximum interval. If this persists, voting file /dev/mapper/grid2 will be considered not functional in 99750 milliseconds. 2024-09-11 13:44:51.202 [ORAAGENT(5437)]CRS-5011: Check of resource "NTAP" failed: details at "(:CLSN00007:)" in "/gridbase/diag/crs/jfs13/crs/trace/crsd_oraagent_oracle.trc" 2024-09-11 13:44:51.798 [ORAAGENT(75914)]CRS-8500: Oracle Clusterware ORAAGENT process is starting with operating system process ID 75914 2024-09-11 13:45:28.626 [ONMD(3629)]CRS-1614: No I/O has completed after 75% of the maximum interval. If this persists, voting file /dev/mapper/grid2 will be considered not functional in 49730 milliseconds. 2024-09-11 13:45:33.339 [ORAAGENT(76328)]CRS-8500: Oracle Clusterware ORAAGENT process is starting with operating system process ID 76328 2024-09-11 13:45:58.629 [ONMD(3629)]CRS-1613: No I/O has completed after 90% of the maximum interval. If this persists, voting file /dev/mapper/grid2 will be considered not functional in 19730 milliseconds. 2024-09-11 13:46:18.630 [ONMD(3629)]CRS-1604: CSSD voting file is offline: /dev/mapper/grid2; details at (:CSSNM00058:) in /gridbase/diag/crs/jfs13/crs/trace/onmd.trc. 2024-09-11 13:46:18.631 [ONMD(3629)]CRS-1606: The number of voting files available, 0, is less than the minimum number of voting files required, 1, resulting in CSSD termination to ensure data integrity; details at (:CSSNM00018:) in /gridbase/diag/crs/jfs13/crs/trace/onmd.trc 2024-09-11 13:46:18.638 [ONMD(3629)]CRS-1699: The CSS daemon is terminating due to a fatal error from thread: clssnmvDiskPingMonitorThread; Details at (:CSSSC00012:) in /gridbase/diag/crs/jfs13/crs/trace/onmd.trc 2024-09-11 13:46:18.651 [OCSSD(3631)]CRS-1652: Starting clean up of CRSD resources.
L'état du chemin SAN sur le nœud RAC qui a perdu des services de stockage se présente comme suit :
oradata7 (3600a0980383041334a3f55676c697347) dm-20 NETAPP,LUN C-Mode size=128G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 alua' wp=rw |-+- policy='service-time 0' prio=0 status=enabled | `- 34:0:0:18 sdam 66:96 failed faulty running `-+- policy='service-time 0' prio=0 status=enabled `- 33:0:0:18 sdaj 66:48 failed faulty running
L'hôte linux a détecté la perte des chemins beaucoup plus rapidement que 200 secondes, mais du point de vue de la base de données, les connexions client à l'hôte sur le site défaillant seront toujours bloquées pendant 200 secondes sous les paramètres Oracle RAC par défaut. Les opérations complètes de la base de données ne reprendront qu'une fois la suppression terminée.
Pendant ce temps, le nœud Oracle RAC sur le site opposé enregistre la perte de l'autre nœud RAC. Dans le cas contraire, le système continue de fonctionner normalement.
2024-09-11 13:46:34.152 [ONMD(3547)]CRS-1612: Network communication with node jfs13 (2) has been missing for 50% of the timeout interval. If this persists, removal of this node from cluster will occur in 14.020 seconds 2024-09-11 13:46:41.154 [ONMD(3547)]CRS-1611: Network communication with node jfs13 (2) has been missing for 75% of the timeout interval. If this persists, removal of this node from cluster will occur in 7.010 seconds 2024-09-11 13:46:46.155 [ONMD(3547)]CRS-1610: Network communication with node jfs13 (2) has been missing for 90% of the timeout interval. If this persists, removal of this node from cluster will occur in 2.010 seconds 2024-09-11 13:46:46.470 [OHASD(1705)]CRS-8011: reboot advisory message from host: jfs13, component: cssmonit, with time stamp: L-2024-09-11-13:46:46.404 2024-09-11 13:46:46.471 [OHASD(1705)]CRS-8013: reboot advisory message text: At this point node has lost voting file majority access and oracssdmonitor is rebooting the node due to unknown reason as it did not receive local hearbeats for 28180 ms amount of time 2024-09-11 13:46:48.173 [ONMD(3547)]CRS-1632: Node jfs13 is being removed from the cluster in cluster incarnation 621516934