1.2.12.1 Quarantine Manager Support for Cell-to-Cell Offload Operations
Commencing with Oracle Exadata System Software 12.2.1.1.0, quarantine manager support is provided for cell-to-cell offload operations that support ASM rebalance and high throughput writes. If Exadata detects a crash during these operations, the offending operation is quarantined, and Exadata falls back to using non-offloaded operations.
These types of quarantines are most likely caused by incompatible versions of CELLSRV. If such quarantines occur on your system, contact Oracle Support Services.
To identify these types of quarantine, run the LIST QUARANTINE
DETAIL
command and check the value of the quarantineType
attribute.
Values associated with these quarantines are ASM_OFFLOAD_REBALANCE
and
HIGH_THROUGHPUT_WRITE
.
Following are some examples of the output produced by the LIST
QUARANTINE
command.
For ASM rebalance:
CellCLI> list quarantine detail
name: 2
asmClusterId: b6063030c0ffef8dffcc99bd18b91a62
cellsrvChecksum: 9f98483ef351a1352d567ebb1ca8aeab
clientPID: 10308
comment: None
crashReason: ORA-600[CacheGet::process:C2C_OFFLOAD_CACHEGET_CRASH]
creationTime: 2016-06-23T22:33:30-07:00
dbUniqueID: 0
dbUniqueName: UnknownDBName
incidentID: 1
quarantineMode: "FULL Quarantine"
quarantinePlan: SYSTEM
quarantineReason: Crash
quarantineType: ASM_OFFLOAD_REBALANCE
remoteHostName: slc10vwt
rpmVersion: OSS_MAIN_LINUX.X64_160623
For high throughput writes originating from a non-container database:
CellCLI> list quarantine detail
name: 10
asmClusterId: b6063030c0ffef8dffcc99bd18b91a62
cellsrvChecksum: 9f98483ef351a1352d567ebb1ca8aeab
clientPID: 8377
comment: None
crashReason: ORA-600[CacheGet::process:C2C_OFFLOAD_CACHEGET_CRASH]
creationTime: 2016-06-23T23:47:01-07:00
conDbUniqueID: 0
conDbUniqueName: UnknownDBName
dbUniqueID: 4263312973
dbUniqueName: WRITES
incidentID: 25
quarantineMode: "FULL Quarantine"
quarantinePlan: SYSTEM
quarantineReason: Crash
quarantineType: HIGH_THROUGHPUT_WRITE
remoteHostName: slc10vwt
rpmVersion: OSS_MAIN_LINUX.X64_160623
For high throughput writes originating from a container database (CDB):
CellCLI> list quarantine detail
name: 10
asmClusterId: eff096e82317ff87bfb2ee163731f7f7
cellsrvChecksum: 9f98483ef351a1352d567ebb1ca8aeab
clientPID: 17206
comment: None
crashReason: ORA-600[CacheGet::process:C2C_OFFLOAD_CACHEGET_CRASH]
creationTime: 2016-06-24T12:59:06-07:00
conDbUniqueID: 4263312973
conDbUniqueName: WRITES
dbUniqueID: 0
dbUniqueName: UnknownDBName
incidentID: 25
quarantineMode: "FULL Quarantine"
quarantinePlan: SYSTEM
quarantineReason: Crash
quarantineType: HIGH_THROUGHPUT_WRITE
remoteHostName: slc10vwt
rpmVersion: OSS_MAIN_LINUX.X64_160623
Parent topic: Fault Isolation with Quarantine