Stefan Matheis (steffkes) created SOLR-5178:
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Summary: Admin UI - Memory Graph on Dashboard shows NaN for unused
Swap
Key: SOLR-5178
URL: https://issues.apache.org/jira/browse/SOLR-5178
Project: Solr
Issue Type: Bug
Components: web gui
Affects Versions: 4.4, 4.3
Reporter: Stefan Matheis (steffkes)
Assignee: Stefan Matheis (steffkes)
Priority: Minor
Fix For: 4.5, 5.0
If the System doesn't use Swap, the displayed memory graph on the dashboard
shows {{NaN}} (not a number) because it tries to divide by zero.
{code}"system":{
"name":"Linux",
"version":"3.2.0-39-virtual",
"arch":"amd64",
"systemLoadAverage":3.38,
"committedVirtualMemorySize":32454287360,
"freePhysicalMemorySize":912945152,
"freeSwapSpaceSize":0,
"processCpuTime":56274650000000,
"totalPhysicalMemorySize":71881908224,
"totalSwapSpaceSize":0,
"openFileDescriptorCount":350,
"maxFileDescriptorCount":4096,
"uname": "Linux ip-xxx-xxx-xxx-xxx 3.2.0-39-virtual #62-Ubuntu SMP Thu
Feb 28 00:48:27 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux\n",
"uptime":" 11:24:39 up 4 days, 23:03, 1 user, load average: 3.38, 3.10,
2.95\n"
}{code}
We should add an additional check for that.
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