On 6/12/19 9:22 AM, Ludwig Krispenz wrote:
Hi Mark,
On 06/11/2019 08:15 PM, Mark Reynolds wrote:
I am currently working on a revision of replication agreement status
messages. Previously we logged the status like so:
Error (%d) - message (sub-message) ...
just to get it clear what you suggest, I was a bit confused about first.
Do you talk about logging (as in the error log) or about the value of
the replicaLastUpdateStatus attribute ?
The BZ mention replicaLastUpdateStatus (like "last update status: Error
(18) Replication error acquiring replica: Incremental update transient
error. Backing off, will retry update later. (transient error)")
I agree it is good idea to provide a json status. Should it replaces the
"human readable" format with a json format I would prefer to be
compatible with a new status attribute replicaLastUpdateStatusJson.
theirry
For logging into the error log I prefer to keep the current,
"readable" format - until we do a real rework of logging.
For the storage of a state in the agreement I think switching to the
json object is ok
If Error was set to 0 it meant success, but this caused confusion
because of the word "Error". So I am working on changing this.
There are two options here: change the static "Error" text to be
dynamic: "Info", "Warning", or "Error" depending on the state. Or,
move away from a human friendly text string to a machine friendly
simple JSON object. There are pro's and con's to both. I think
moving towards a JSON object is the correct way - easier to maintain,
and easier to be consumed by other applications. The cons are that it
is a disruptive change to the previous behavior, and it could be
confusing to an Admin who might not understand JSON.
This is the basic JSON object I was thinking of
{"status": "Good|Warning|Bad", "status code": NUMBER(aka error
code), "date": "2019117485748745Z", "message": "Message text"}
or maybe multiple messages (list):
{"status": "Good|Warning|Bad", "status code": NUMBER(aka error
code), "date": "2019117485748745Z", "message": ["the replication
status is...", "Connection error 91", "Server Down"]}
The JSON object can easily be extended without breaking clients, but
it's not easy to read for a human.
Thoughts?
Thanks,
Mark
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