Re: [ClusterLabs] Antw: [EXT] Re: Parsing the output of crm_mon
Also xmllint has '--xpath' (unless you are running something as old as RHEL6) and is available on every linux distro. Best Regards,Strahil Nikolov On Mon, Mar 21, 2022 at 15:41, Ken Gaillot wrote: On Mon, 2022-03-21 at 08:27 +0100, Ulrich Windl wrote: > > > > Ken Gaillot schrieb am 18.03.2022 um > > > > 13:39 in > Nachricht > : > > On Fri, 2022‑03‑18 at 08:46 +0100, Ulrich Windl wrote: > > > Hi! > > > > > > Parsing the output of crm_mon I wonder: > > > Is there a collection of sample outputs for pacemaker 1 and 2 > > > formats > > > showing all types of resources? > > > > Ideally, any parsing should be done of the XML output generated by > > ‑‑ > > output‑as=xml since 2.0.3 and ‑‑as‑xml before then (the output is > > identical other than the outermost tag). > > Agreed, but it's much trickier to parse XML with awk ;-) > Maybe it' even less efficient (unless crm_mon itself is much more > efficient > when out putting XML) > With XPath support, I might be able to create the output I need using > xrm_mon > only, but that's not implemented. > > Regards, > Ulrich xmlstarlet can search xpaths, e.g. crm_mon -1 --output-as=xml | xmlstarlet sel -t -v "//element/@attribute" > > > > The XML output is stable and only gets backward‑compatible > > additions > > once in a long while, but the text output changes more frequently > > and > > significantly. > > > > There's an RNG schema for it, api‑result.rng (where it's installed > > depends on your build; in the source repository, make generates it > > under xml/api). > > > > > Also I realized that the coutput for clone sets in unfortunate: > > > Consider a normal primitive like this: > > > * primitive_name (ocf::heartbeat:agent_name): Started > > > host‑name > > > And a clone set: > > > * Clone Set: clone_name [primitive_name]: > > > > > > If you want to filter clone sets by resource agent you're lost > > > there. > > > It would have been nicht if the format of clone sets were: > > > * Clone Set: clone_name [primitive_name] > > > (ocf::heartbeat:agent_name): > > > > > > I see that there's the "‑R" option that "expands" the clones > > > similar > > > as resource groups like this: > > > * primitive_name (ocf::heartbeat:agent): Started > > > host‑name > > > > > > Regards, > > > Ulrich > > > > > > > > > > > > > > > > > > > > > ___ > > > Manage your subscription: > > > https://lists.clusterlabs.org/mailman/listinfo/users > > > > > > ClusterLabs home: https://www.clusterlabs.org/ > > > > > ‑‑ > > Ken Gaillot > > > > ___ > > Manage your subscription: > > https://lists.clusterlabs.org/mailman/listinfo/users > > > > ClusterLabs home: https://www.clusterlabs.org/ > > > ___ > Manage your subscription: > https://lists.clusterlabs.org/mailman/listinfo/users > > ClusterLabs home: https://www.clusterlabs.org/ -- Ken Gaillot ___ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/ ___ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
Re: [ClusterLabs] Antw: [EXT] Re: Parsing the output of crm_mon
On Mon, 2022-03-21 at 08:27 +0100, Ulrich Windl wrote: > > > > Ken Gaillot schrieb am 18.03.2022 um > > > > 13:39 in > Nachricht > : > > On Fri, 2022‑03‑18 at 08:46 +0100, Ulrich Windl wrote: > > > Hi! > > > > > > Parsing the output of crm_mon I wonder: > > > Is there a collection of sample outputs for pacemaker 1 and 2 > > > formats > > > showing all types of resources? > > > > Ideally, any parsing should be done of the XML output generated by > > ‑‑ > > output‑as=xml since 2.0.3 and ‑‑as‑xml before then (the output is > > identical other than the outermost tag). > > Agreed, but it's much trickier to parse XML with awk ;-) > Maybe it' even less efficient (unless crm_mon itself is much more > efficient > when out putting XML) > With XPath support, I might be able to create the output I need using > xrm_mon > only, but that's not implemented. > > Regards, > Ulrich xmlstarlet can search xpaths, e.g. crm_mon -1 --output-as=xml | xmlstarlet sel -t -v "//element/@attribute" > > > > The XML output is stable and only gets backward‑compatible > > additions > > once in a long while, but the text output changes more frequently > > and > > significantly. > > > > There's an RNG schema for it, api‑result.rng (where it's installed > > depends on your build; in the source repository, make generates it > > under xml/api). > > > > > Also I realized that the coutput for clone sets in unfortunate: > > > Consider a normal primitive like this: > > > * primitive_name(ocf::heartbeat:agent_name): Started > > > host‑name > > > And a clone set: > > > * Clone Set: clone_name [primitive_name]: > > > > > > If you want to filter clone sets by resource agent you're lost > > > there. > > > It would have been nicht if the format of clone sets were: > > > * Clone Set: clone_name [primitive_name] > > > (ocf::heartbeat:agent_name): > > > > > > I see that there's the "‑R" option that "expands" the clones > > > similar > > > as resource groups like this: > > > * primitive_name (ocf::heartbeat:agent):Started > > > host‑name > > > > > > Regards, > > > Ulrich > > > > > > > > > > > > > > > > > > > > > ___ > > > Manage your subscription: > > > https://lists.clusterlabs.org/mailman/listinfo/users > > > > > > ClusterLabs home: https://www.clusterlabs.org/ > > > > > ‑‑ > > Ken Gaillot > > > > ___ > > Manage your subscription: > > https://lists.clusterlabs.org/mailman/listinfo/users > > > > ClusterLabs home: https://www.clusterlabs.org/ > > > ___ > Manage your subscription: > https://lists.clusterlabs.org/mailman/listinfo/users > > ClusterLabs home: https://www.clusterlabs.org/ -- Ken Gaillot ___ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
[ClusterLabs] Antw: [EXT] Re: Parsing the output of crm_mon
>>> Ken Gaillot schrieb am 18.03.2022 um 13:39 in Nachricht : > On Fri, 2022‑03‑18 at 08:46 +0100, Ulrich Windl wrote: >> Hi! >> >> Parsing the output of crm_mon I wonder: >> Is there a collection of sample outputs for pacemaker 1 and 2 formats >> showing all types of resources? > > Ideally, any parsing should be done of the XML output generated by ‑‑ > output‑as=xml since 2.0.3 and ‑‑as‑xml before then (the output is > identical other than the outermost tag). Agreed, but it's much trickier to parse XML with awk ;-) Maybe it' even less efficient (unless crm_mon itself is much more efficient when out putting XML) With XPath support, I might be able to create the output I need using xrm_mon only, but that's not implemented. Regards, Ulrich > > The XML output is stable and only gets backward‑compatible additions > once in a long while, but the text output changes more frequently and > significantly. > > There's an RNG schema for it, api‑result.rng (where it's installed > depends on your build; in the source repository, make generates it > under xml/api). > >> >> Also I realized that the coutput for clone sets in unfortunate: >> Consider a normal primitive like this: >> * primitive_name(ocf::heartbeat:agent_name): Started host‑name >> And a clone set: >> * Clone Set: clone_name [primitive_name]: >> >> If you want to filter clone sets by resource agent you're lost there. >> It would have been nicht if the format of clone sets were: >> * Clone Set: clone_name [primitive_name] >> (ocf::heartbeat:agent_name): >> >> I see that there's the "‑R" option that "expands" the clones similar >> as resource groups like this: >> * primitive_name (ocf::heartbeat:agent):Started host‑name >> >> Regards, >> Ulrich >> >> >> >> >> >> >> ___ >> Manage your subscription: >> https://lists.clusterlabs.org/mailman/listinfo/users >> >> ClusterLabs home: https://www.clusterlabs.org/ >> > ‑‑ > Ken Gaillot > > ___ > Manage your subscription: > https://lists.clusterlabs.org/mailman/listinfo/users > > ClusterLabs home: https://www.clusterlabs.org/ ___ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
[ClusterLabs] Antw: [EXT] Re: Parsing the output of crm_mon
>>> Reid Wahl schrieb am 18.03.2022 um 10:02 in Nachricht
:
> On Fri, Mar 18, 2022 at 12:47 AM Ulrich Windl
> wrote:
>>
>> Hi!
>>
>> Parsing the output of crm_mon I wonder:
>> Is there a collection of sample outputs for pacemaker 1 and 2 formats
> showing all types of resources?
>>
>> Also I realized that the coutput for clone sets in unfortunate:
>> Consider a normal primitive like this:
>> * primitive_name(ocf::heartbeat:agent_name): Started host‑name
>> And a clone set:
>> * Clone Set: clone_name [primitive_name]:
>>
>> If you want to filter clone sets by resource agent you're lost there.
>> It would have been nicht if the format of clone sets were:
>> * Clone Set: clone_name [primitive_name] (ocf::heartbeat:agent_name):
>>
>> I see that there's the "‑R" option that "expands" the clones similar as
> resource groups like this:
>> * primitive_name (ocf::heartbeat:agent):Started host‑name
>
> What exactly are you asking for that "‑R" ("‑‑show‑detail") doesn't
provide?
Actually I found it out, but still it's a bit tricky to parse as clone
instance.
(The only difference from plain resources is the indent)
Regards,
Ulrich
>
>> Regards,
>> Ulrich
>>
>>
>>
>>
>>
>>
>> ___
>> Manage your subscription:
>> https://lists.clusterlabs.org/mailman/listinfo/users
>>
>> ClusterLabs home: https://www.clusterlabs.org/
>>
>
>
> ‑‑
> Regards,
>
> Reid Wahl (He/Him), RHCA
> Senior Software Maintenance Engineer, Red Hat
> CEE ‑ Platform Support Delivery ‑ ClusterHA
>
> ___
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