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Hi, we are using SEQ a lot, and really like it. We also displaying it on our office dashboard so we can spot new errors. One thing which is a bit inconvenient here is that SEQ doesn't support some generic meta-filters in url. E.g. in our case - we want to run seq panel in auto-refresh mode and displaying only data from Today. Both of these features are impossible without manual intervention, we can't create a single bookmark and put seq url to start in dashboard and enable all features we want. Current url structure support only absolute dates like this : `https://Seq-server:5341/#/events?from=2016-07-27T14:00:00.000Z` Would be nice to allow some kind of meta-values like `?from_relative=Today`, `?from_relative=3.days.ago` or `?from_relative=3.hours.ago` to narrow down the default list that opens ( otherwise in some cases when we have ~7M of log entries already SEQ is very slow to open) Also having something like `?auto_refresh=true` helps a lot for dashboard - one can just put everything in a url : `https://Seq-server:5341/#/events?from_relative=3.days.ago&auto_refresh=true` into start page list and everytime dashboard starts - it has all toggles and filters enabled. Currently to get it properly configured on the dashboard - we need to do 2 manual actions every dashboard starts- enable autorefresh and set From date to absolute value of Today. Cheers, Alexey
Posted by Alexey Shcherbak 3 years ago
I'm using SEQ in a pretty small scale way, or at least I thought it was small scale. I have about a half dozen .net core services on a PC talking to it, and sending a few thousand log messages per hour. I'm seeing RAM usage for the SEQ process reach 6.5 gigs, which is insane. After it reaches some peak around 6.5 gigs, it is doing some kind of Garbage Collection back down to under 1 gig. Is this configurable? I'm evaluating SEQ for commercial usefulness and this kind of behaviour limits its usefulness severely.
Posted by Warren Postma 3 years ago
I have been doing some testing using Serilog and Seq and found that the diagnostics page generates a lot of cpu load (pretty much 100% cpu load) on the Seq VM. While this page is active; Seq gets behind on logging events (in another tab) and queries that previously took 5s to complete are now timing out.
Posted by Tony Thompson 3 years ago
I'm testing out Seq and I ran into a problem where the following exception occurs when we run a specific code path that involves exceptions being thrown. There is nothing special about this code path that I can see but the end result is we don't see our exceptions in Seq. Error has been raised. Exception: System.Net.WebException: The remote server returned an error: (400) Bad Request. at System.Net.HttpWebRequest.GetResponse() at Seq.Client.NLog.SeqTarget.PostBatch(IEnumerable`1 events) in C:\projects\seq-client\src\Seq.Client.NLog\Client\NLog\SeqTarget.cs:line 106 at NLog.Targets.Target.WriteAsyncLogEvents(AsyncLogEventInfo[] logEvents)
Posted by Shane Courtrille 3 years ago
I might be missing something here as I'm new to Seq. How I do add the results of a SQL query to the dashboard or even set it as a signal? (Since the >> is disabled when a query is active) Having to type the query each time to see the graph seems a little extreme/incomplete. So is there a way to bookmark/remember queries? Or show them on the dashboard? Also can I get alerts on query results. ie. error count > 100 in 1 hour?
Posted by Tony Thompson 3 years ago
Hi, We have seen some performance degradation on some of our web app which log to an external seq server. The symptom is on the web server, the w3wp process keeps using full cpu, and memory usage went up close to the limit. We didn't find a reason for this behavior. Then we noticed that our Seq server(version 2.4.2) was having some trouble with caching up logs. And it was very slow to view logs and apply filters. We reinstalled latest Seq 3.2.16, the caching started to work as expected. We also turned on "Allow buffered writes" which we used to keep off. Now the performance issue in our web app seems disappeared. It had happened consistently for the last few days. Restarting works fine, then after few hours the process went crazy. That makes me think whether the slow performance on Seq server could have caused this issue. Because we have set very high log level, so the amount of logs is huge. I checked the code in Serilog.SeqSink, it awaits on this._httpClient.PostAsync in EmitBatchAsync that could clog up the sink in multiple threads. The SeqSink version is 1.5.0. Sorry I don't know whether I should ask the question here or somewhere for the Serilog.SeqSink.
Posted by Jun Zhu 3 years ago
I feel like I'm asking something pretty obvious, but I sincerely can't find it in documentation. Does Seq support automated data export to other data storages? E.g., we'd like to run some analytics over the gathered events, but we'd like to do it in our BI tool, and we'd like the data to be moved from Seq to the BI daily (or hourly). How do we approach this?
Posted by Sergey Rogovtsev 3 years ago
Currently the time displayed for the log entry appears to be the time it was received. This is a problem when you have multiple systems all logging as the logs can be quite out of order even when the machine clocks are perfectly in sync. Is it possible to provide the time that should be used for the log time?
Posted by Shane Courtrille 3 years ago
I just purchased an enterprise license for Seq and I'd like to understand how the restrictions on the number of servers/instances associated with that license. We host multiple instances of Seq on one server, in that scenario do those instances count against our license limit or is it just the physical server itself that counts?
Posted by Mark Perna 3 years ago
For reasons that seemed better at the time, I have some properties with a dot in the name. For example: @Properties["Request.StopWatch"] > 10000 Which works fine. However I do not know the syntax for SQL like queries, e.g.: select @Properties['Request.StopWatch'] from stream limit 1000
Posted by N Armer 3 years ago
I have now dozens of applications logged by Seq and I have created a lot of signals (some for using for apps (for sample e-mail on exception) and some for filter the events quickly.) It should be nice if we can have hierarchy in the signals. Not Something too complicated, but just a 2 levels hierarchy. Folders with inside some signals, and when we must select a signal (in an app instance config), the name of the signal should be "Folder - Signal". I think it's not necessary to have more levels. Regards Valentin
Posted by Valentin Bornand 3 years ago
Hey Nick. It's actually a bug report ;-) I just ran the latest installer (3.2.16) on a machine without Seq, and on the last step I mashed the button to browse to Seq. The installer closed and Explorer opened, but localhost:5341 did not. It's ok though I figured out the port number myself. Cheers Ben
Posted by Ben Scott 3 years ago