[TS-1470] 3.2.x - Large cache (> 16TB) not working?

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 3.2.5
• Component/s: Cache

Environment

Centos 6.1

• Backport to Version: 3.2.3
• Assignee: Phil Sorber
• Reporter: Jan van Doorn
• Created: 15/Sep/12 11:29
• Updated: 05/Jun/13 22:42
• Resolved: 14/May/13 17:10

Description

Is there a maximum disk cache size in ATS 3.20? I seem to be getting this WARNING/Error:

–
[TrafficServer] using root directory '/opt/trafficserver'
[Jun 21 21:57:10.038]

{0x7f4d67aa67e0} STATUS: opened /opt/trafficserver/var/log/trafficserver/diags.log
[Jun 21 21:57:10.038] {0x7f4d67aa67e0}

NOTE: updated diags config
[Jun 21 21:57:10.042] Server

{0x7f4d67aa67e0} NOTE: cache clustering disabled
[Jun 21 21:57:10.083] Server {0x7f4d67aa67e0}

NOTE: cache clustering disabled
[Jun 21 21:57:10.182] Server

{0x7f4d67aa67e0} NOTE: logging initialized[11], logging_mode = 3
[Jun 21 21:57:10.183] Server {0x7f4d67aa67e0}

NOTE: loading plugin '/opt/trafficserver/libexec/trafficserver/stats_over_http.so'
[Jun 21 21:57:10.185] Server

{0x7f4d67aa67e0}

NOTE: traffic server running
[Jun 21 21:57:10.189] Server

{0x7f4d63799700} WARNING: not enough space to increase volume: [1] to size: [20585472]
[Jun 21 21:57:10.189] Server {0x7f4d63799700}

NOTE: edit the volume.config file and restart traffic_server
[Jun 21 21:57:10.189] Server

{0x7f4d63799700}

NOTE: cache disabled
–

When I try to use more than a certain amount (16TB?) of cache, and the "cache disabled" message doesn't seem good.

I have a system with 24 600GB drives that works well, but a system with 24 900GB drives will have the above error, unless I disable at least 5 drives in storage.config.

I tried splitting the cache up in to 2 volumes, each 50% in volume.config, but I still get the same error.

Issue Links

• is a clone of: TS-1319 Large cache (> 16TB) not working?