Node Logs on a 24 nodes instance

[Carsten Schnor1]

Community Members,

I try to get clarity about the folowing. We have a feeding system sending data to the identify_reconcile API. Payloads are visible in localhost logs. But from the information available it is not clear to me what is listed in Node logs (v_logfiles_list.do).

I see for a single day multiple localhost logs. Each with identical Size (for past days).

I cross checked entries on a different node. Similar, but not identical lists are shown (some nodes show more records, but still identical size for past days)

I made a diff on downloaded files from these records and they appear to be binary identical. 

So I'm puzzled whether each of the records represents a complete set of localhost log, holding data from ALL nodes and if so, why do we see these records multiple times?

I am aware I could pull all node logs via "download near node" option, but if any of the above already holds all information it would be more convenient to use the existing records.

Is there anybody who can shed some light on this beahviour of duplicated records in the v_logfile_list module?

Best,

Carsten

[Bert_c1 · Accepted solution]

Each instance application node has log files. Show what occurred on that app node. Seems your instance has 24 application nodes. Most likely a production instance. And it seems load-balancing works well. As far as the two different sizes, some nodes may not handle web traffic, but be use for processing instance jobs.

In addition, you may be exceeding the practical limit on size with log data. Check for a log message near the end of the file indicating 'Excessive logging' 'logging is disabled' or similar indication logging has ceased for that day.

Create a Support Case if needed to review.

[Carsten Schnor1]

Thx. Your hints a much appreciated, especially related to the "Excessive logging" information.

Furthermore I was able to get a better understand that

* OOB download function is using a File Name to select the Node Log for download

* if the same Name is used multiple times it will still download just the one it picks first.

* the listing is different depending on which node I am connected with an active session

So bottomline, for full optics we need to use the Download Near Nodes UI Page to bring in all Node logs and and pull data from Node Log Download History.

Thx once more,

Carsten