[jira] [Commented] (SOLR-15251) Metrics changes in Solr 8 cause admin dashboard to render incorrectly

["Dwane Hall (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-15251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17301013#comment-17301013 ] 

Dwane Hall commented on SOLR-15251:
-----------------------------------

[~epugh] I just spun an instance up on my local dev environment and it is working as expected (Ubuntu 20). I was troubleshooting this at work and we do run the 8.8.1 container host mounted on an older SUSE (12) variant so I'm wondering if the issue is specific to our environment.  I'll troubleshoot when I'm back in the office. 

> Metrics changes in Solr 8 cause admin dashboard to render incorrectly
> ---------------------------------------------------------------------
>
>                 Key: SOLR-15251
>                 URL: https://issues.apache.org/jira/browse/SOLR-15251
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: Admin UI, metrics
>    Affects Versions: 8.8.1
>            Reporter: Dwane Hall
>            Assignee: David Eric Pugh
>            Priority: Minor
>
> The metrics API appears to have changed between Solr 7 and 8. Some of the effected metrics are used on the Admin UI Dashboard view which results in the view not rendering correctly. The main culprits appear to be os.totalPhysicalMemorySize not being calculated in Solr 8 and two missing metrics os.totalSwapSpaceSize and os.freeSwapSpaceSize which are all used in the Admin UI Dashboard view page.   Values memory.heap.committed, memory.heap.init, memory.heap.max also appear to be using the identical value in Solr 8. Below is an extract of the javascrpit used on the Admin Dashboard and a comparison between metrics reported in Solr 7 and 8.  The function "parse_memory_value" is where the JavaScript error appears to be thrown with the missing metrics.
> {code:java}
> Solr 8
> "os.totalPhysicalMemorySize":0, (Not calculated)
> "os.freePhysicalMemorySize":792087998464,
> "os.totalSwapSpaceSize" (Metric not present)
> "os.freeSwapSpaceSize": (Metric not present)
> "memory.heap.committed":8589934592,
> "memory.heap.init":8589934592,
> "memory.heap.max":8589934592,
> "memory.heap.usage":0.006413557566702366,
> "memory.heap.used":55092040,
> "memory.non-heap.committed":97910784,
> "memory.non-heap.init":7667712,
> "memory.non-heap.max":-1,
> "memory.non-heap.usage":-9.2249552E7,
> "memory.non-heap.used":92249712,
>  Solr 7
> "os.totalPhysicalMemorySize":810586099712,
> "os.freePhysicalMemorySize":756665888768,
> "os.totalSwapSpaceSize":0,
> "os.freeSwapSpaceSize":0
> "memory.heap.committed":12348030976,
> "memory.heap.init":12884901888,
> "memory.heap.max":12348030976,
> "memory.heap.usage":0.313836514301922,
> "memory.heap.used":3875263000,
> "memory.non-heap.committed":145039360,
> "memory.non-heap.init":7667712,
> "memory.non-heap.max":-1,
> "memory.non-heap.usage":-1.30145664E8,
> "memory.non-heap.used":130145824, 
> +main.js (Admin Dashboard)+
> // physical memory
> var memoryMax = parse_memory_value(data.system.totalPhysicalMemorySize);
> $scope.memoryTotal = parse_memory_value(data.system.totalPhysicalMemorySize - data.system.freePhysicalMemorySize);
> $scope.memoryPercentage = ($scope.memoryTotal / memoryMax * 100).toFixed(1)+ "%";
> $scope.memoryMax = pretty_print_bytes(memoryMax);
> $scope.memoryTotalDisplay = pretty_print_bytes($scope.memoryTotal);
> // swap space
> var swapMax = parse_memory_value(data.system.totalSwapSpaceSize);
> $scope.swapTotal = parse_memory_value(data.system.totalSwapSpaceSize - data.system.freeSwapSpaceSize);
> $scope.swapPercentage = ($scope.swapTotal / swapMax * 100).toFixed(1)+ "%";
> $scope.swapMax = pretty_print_bytes(swapMax);
> $scope.swapTotalDisplay = pretty_print_bytes($scope.swapTotal); 
> // file handles
> $scope.fileDescriptorPercentage = (data.system.openFileDescriptorCount / data.system.maxFileDescriptorCount *100).toFixed(1) + "%";
> // java memory
> var javaMemoryMax = parse_memory_value(data.jvm.memory.raw.max || data.jvm.memory.max);
> $scope.javaMemoryTotal = parse_memory_value(data.jvm.memory.raw.total || data.jvm.memory.total);
> $scope.javaMemoryUsed = parse_memory_value(data.jvm.memory.raw.used || data.jvm.memory.used);
> $scope.javaMemoryTotalPercentage = ($scope.javaMemoryTotal / javaMemoryMax *100).toFixed(1) + "%";
> $scope.javaMemoryUsedPercentage = ($scope.javaMemoryUsed / $scope.javaMemoryTotal *100).toFixed(1) + "%";
> $scope.javaMemoryPercentage = ($scope.javaMemoryUsed / javaMemoryMax * 100).toFixed(1) + "%";
> $scope.javaMemoryTotalDisplay = pretty_print_bytes($scope.javaMemoryTotal);
> $scope.javaMemoryUsedDisplay = pretty_print_bytes($scope.javaMemoryUsed);  // @todo These should really be an AngularJS Filter: {{ javaMemoryUsed | bytes }}
> $scope.javaMemoryMax = pretty_print_bytes(javaMemoryMax);
> var parse_memory_value = function( value ) {
>   if( value !== Number( value ) )
>   {
>     var units = 'BKMGTPEZY';
>     var match = value.match( /^(\d+([,\.]\d+)?) (\w).*$/ );
>     var value = parseFloat( match[1] ) * Math.pow( 1024, units.indexOf( match[3].toUpperCase() ) );
>   }
>   return value;
> };
> {code}
>  



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