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NetFlow Log file Size.

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Answered (Not Verified) This post has 0 verified answers | 19 Replies | 0 Followers | 1,950 Views


44 Posts
Points 346
aliendan posted on Wed, Nov 5 2008 9:07 AM
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I have had to expand our data base log file from 10 GB to 38 GB in the last three weeks. From what I can see NetFlow seems to be the cause. I had to stop our NetFlow process to get Orion running stably.  When I started the NetFlow process up with the additional log file space the app burned through 38 GB of log file space in 30 minutes. Currently NetFlow accounts for 80 GB of our total 101 GB data base. I am in the process of expanding the log file space again, but I am wondering if anyone has seen this issue before. My guess is that NetFlow is wrapping up data all at once and is not committing data until it is done.
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362 Posts
Points 1,094
Thwack MVP
Donald_Francis replied on Mon, Jun 8 2009 7:47 AM
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Mine actually shrunk down and then grew out again.

Donald Francis
Sr. Network Engineer
 The Shaw Group

NPM SLX 3 Pollers 14000 elements
APM SLX 2000 elements
NCM 3000 1300 devices
Netflow SLX 300 interfaces

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6 Posts
Points 14
randhammack replied on Mon, Jun 8 2009 10:09 AM
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According to SolarWinds, this is a known issue that they are working on. They, of course, will update us when a resolution has been found.

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18 Posts
Points 54
Answered (Not Verified) goldberg replied on Mon, Jun 15 2009 10:53 AM
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Suggested by Elisabeth Zakes

Hi Everyone, I've been dealing with this issue for a few weeks and been working with Solarwinds support.  I was comsuming 65GB of disk space in under 1 hour so I too had to turn off Netflow inorder to use Orion.  Last week I worked with one of the developers and what we did was uninstall Netflow, remove all Netflow related database tables, views etc. and end up with a Netflow free database.  Then I installed Netflow 3.1 with SP2 and so far its been working for about 4 days now FLAWLESSLY and the ldf file has been really small less then 100MB.  So something in the database was causing some sort of lock.  I wouldn't mind troubleshooting but I couldn't afford not to use Netflow so I made the recommendation to start from scratch in regards to Netflow.  I am very happy we did the necessary changes because now things are working really good. 

Hope this helps

NPM 9.5 SP5 - APM 3.1 - NTA 3.6 - IPAM 1.6 - NCM 5.5.2

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1,272 Posts
Points 13,397
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SolarWinds Employee
mcbridea replied on Tue, Jun 23 2009 3:14 PM
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Were you running 3.1 SP2 when the problem was happening.

 

 

Andy McBride, Technology Support Specialist - SolarWinds

Follow Me on Twitter

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6 Posts
Points 14
randhammack replied on Wed, Jun 24 2009 6:59 AM
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When it started we were not. It started after we upgraded Solarwinds, which did not include the SP2 for Netflow. Even after upgrading Netflow to SP2 the problem remained. We apparently finally got a hold of the developer that remembered fixing yours. He did the same thing to ours and now we do not have the problem anymore.

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