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Balazs Meszaros commented on HBASE-20571: ----------------------------------------- I uploaded a more general solution, where JSONBean class serializes special floating point values as "NaN", "Infinity" or "-Infinity". [~apurtell] yes, it also affects branch-1, patch is there. > JMXJsonServlet generates invalid JSON if it has NaN in metrics > -------------------------------------------------------------- > > Key: HBASE-20571 > URL: https://issues.apache.org/jira/browse/HBASE-20571 > Project: HBase > Issue Type: Bug > Components: UI > Reporter: Balazs Meszaros > Assignee: Balazs Meszaros > Priority: Major > Fix For: 3.0.0, 2.0.1, 1.4.5 > > Attachments: HBASE-20571.branch-1.003.patch, > HBASE-20571.branch-2.0.001.patch, HBASE-20571.branch-2.0.002.patch, > HBASE-20571.branch-2.0.002.patch, HBASE-20571.branch-2.0.003.patch > > > {{/jmx}} servlet responses invalid JSON, if some metrics are NaN: > {code} > "l1CacheHitCount" : 0, > "l1CacheMissCount" : 0, > "l1CacheHitRatio" : NaN, > "l1CacheMissRatio" : NaN, > "l2CacheHitCount" : 0, > "l2CacheMissCount" : 0, > "l2CacheHitRatio" : 0.0, > "l2CacheMissRatio" : 0.0, > {code} > NaN is an invalid character sequence in JSON. We should not response NaN in > metrics. -- This message was sent by Atlassian JIRA (v7.6.3#76005)