Event Logs in Redfish

[Jiaqing Zhao]

There are 2 kinds of logging backend implemented in bmcweb, DBus-based and
journal-based. By default the journal-based one is used. To switch to the
DBus-based logging backend, add `EXTRA_OEMESON += "-Dredfish-dbus-log='enabled'"`
to your bmcweb bbappend file.

On 2022-08-17 17:34, zehra.ozdemir at inventron.com.tr wrote:
> Hello,
> 
>  
> 
> I am trying to get an event log and I created a sample log by calling
> logging create dbus interface as down below:
> 
>  
> 
> busctl call xyz.openbmc_project.Logging /xyz/openbmc_project/logging
> xyz.openbmc_project.Logging.Create Create ssa{ss} "Hata olustu"
> "xyz.openbmc_project.Logging.Entry.Level.Critical" 1 "CALLOUT_GPIO_NUM" "5"
> 
>  
> 
> It seems to created successfully when I viewed "GetManagedObjects" object of
> the interface :
> 
>  
> 
> busctl call xyz.openbmc_project.Logging /xyz/openbmc_project/logging
> org.freedesktop.DBus.ObjectManager GetManagedObjects
> 
>  
> 
> output:
> 
>  
> 
> a{oa{sa{sv}}} 2 "/xyz/openbmc_project/logging/entry/1" 8
> "org.freedesktop.DBus.Peer" 0 "org.freedesktop.DBus.Introspectable" 0
> "org.freedesktop.DBus.Properties" 0 "xyz.openbmc_project.Common.FilePath" 1
> "Path" s "/var/lib/phosphor-logging/errors/1"
> "xyz.openbmc_project.Software.Version" 2 "Version" s "0.1.0" "Purpose" s
> "xyz.openbmc_project.Software.Version.VersionPurpose.BMC"
> "xyz.openbmc_project.Association.Definitions" 1 "Associations" a(sss) 0
> "xyz.openbmc_project.Object.Delete" 0 "xyz.openbmc_project.Logging.Entry" 10
> "Id" u 1 "Timestamp" t 1660660714372 "Severity" s
> "xyz.openbmc_project.Logging.Entry.Level.Critical" "Message" s "Hata olustu"
> "EventId" s "" "AdditionalData" as 1 "CALLOUT_GPIO_NUM=5" "Resolution" s ""
> "Resolved" b false "ServiceProviderNotify" b false "UpdateTimestamp" t
> 1660660714372 "/xyz/openbmc_project/logging/internal/manager" 4
> "org.freedesktop.DBus.Peer" 0 "org.freedesktop.DBus.Introspectable" 0
> "org.freedesktop.DBus.Properties" 0
> "xyz.openbmc_project.Logging.Internal.Manager" 0
> 
>  
> 
> However, no data is displayed in the web-ui.  So, I examined the bmcweb
> method which deals with getting event log requests from dbus and nothing
> seems wrong. When I call this bmcweb method with redfish api, count returns
> zero.:
> 
>  
> 
> curl -c cjar -b cjar -k
> https://{$bmc}/redfish/v1/Systems/system/LogServices/EventLog/Entries
> <https://%7b$bmc%7d/redfish/v1/Systems/system/LogServices/EventLog/Entries/>
> 
> {
>   "@odata.id": "/redfish/v1/Systems/system/LogServices/EventLog/Entries",
>   "@odata.type": "#LogEntryCollection.LogEntryCollection",
>   "Description": "Collection of System Event Log Entries",
>   "Members": [],
>   "Members at odata.count": 0,
>   "Name": "System Event Log Entries"
> 
>  
> 
> In short, what exactly do I need to do to view these event logs in the web
> ui?
> 
>  
> 
> Thank you.
>