Server Stability and Latency
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Server Stability and Latency
sparticvs Thu Nov 10, 2011 6:16 pm
Hello Minecraftians!
This morning (Nov 10th at ~8am US-EST) I resolved a long standing issue you were all experiencing, lag. I discovered that the VM master host had a service that was running at 100% CPU which seems to be the primary cause of the excessive latency. I have disabled the service as I deemed it to not be 75% necessary. It is likely this service will be reactivated in the future, after I work on tuning it better (and I will make sure this happens during the Australian night so you don't experience the latency).
In addition I will begin work on a monitoring system to put into place to notify the proper administration (either the master admin <this guy> or the minecraft admins <panda, and trei> depending on the critical nature of the issue.
In other news, I do apologize about the occasional TCP connection disruptions (where connections are randomly dropped for no reason). I will continue to look into this and diagnose what is causing this. If I can't identify an issue with the master host or with the VM that runs Minecraft, I will be in touch with my data-center people to work on resolving this issue.
Thank you all for your patience!
Charles "Sparticvs" Timko
--- UPDATE ---
After looking at the IPTable rules that my audit scripts have created, the issue with dropped connections might be due to poorly designed rules. I will be working on a new list of rules, but I don't foresee their deployment for atleast a week (I build the rules and then test them against all the traffic I expect to see).
This morning (Nov 10th at ~8am US-EST) I resolved a long standing issue you were all experiencing, lag. I discovered that the VM master host had a service that was running at 100% CPU which seems to be the primary cause of the excessive latency. I have disabled the service as I deemed it to not be 75% necessary. It is likely this service will be reactivated in the future, after I work on tuning it better (and I will make sure this happens during the Australian night so you don't experience the latency).
In addition I will begin work on a monitoring system to put into place to notify the proper administration (either the master admin <this guy> or the minecraft admins <panda, and trei> depending on the critical nature of the issue.
In other news, I do apologize about the occasional TCP connection disruptions (where connections are randomly dropped for no reason). I will continue to look into this and diagnose what is causing this. If I can't identify an issue with the master host or with the VM that runs Minecraft, I will be in touch with my data-center people to work on resolving this issue.
Thank you all for your patience!
Charles "Sparticvs" Timko
--- UPDATE ---
After looking at the IPTable rules that my audit scripts have created, the issue with dropped connections might be due to poorly designed rules. I will be working on a new list of rules, but I don't foresee their deployment for atleast a week (I build the rules and then test them against all the traffic I expect to see).
Last edited by Treijim on Fri Jan 13, 2012 10:03 am; edited 3 times in total (Reason for editing : seriously, I need to learn how to spell)
sparticvs- Posts : 36
Join date : 2011-10-26
Re: Server Stability and Latency
Treijim Thu Nov 10, 2011 8:12 pm
this is why i have you two pro guys run the server. you know your stuff 
btw i think its 'criticality'. thanks heaps for your time and effort!
btw i think its 'criticality'. thanks heaps for your time and effort!
Treijim- Admin
- Posts : 560
Join date : 2011-10-22
Age : 38
Location : Adelaide, South Australia -
Re: Server Stability and Latency
sparticvs Thu Nov 10, 2011 9:42 pm
Treijim wrote:this is why i have you two pro guys run the server. you know your stuff
btw i think its 'criticality'. thanks heaps for your time and effort!
Probably is how that is spelled, but chrome freaked out and it didn't have a suggestion.
sparticvs- Posts : 36
Join date : 2011-10-26
Re: Server Stability and Latency
sparticvs Fri Nov 11, 2011 1:55 am
Fixed latency again...the service managed to restart itself because i forgot to disable it's agent. woops.
sparticvs- Posts : 36
Join date : 2011-10-26
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