[jira] [Updated] (STORM-743) Invalid JSON produced when serializing TaskInfo and DataPoint types

["Rick Kellogg (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STORM-743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rick Kellogg updated STORM-743:
-------------------------------
    Component/s: storm-core

> Invalid JSON produced when serializing TaskInfo and DataPoint types
> -------------------------------------------------------------------
>
>                 Key: STORM-743
>                 URL: https://issues.apache.org/jira/browse/STORM-743
>             Project: Apache Storm
>          Issue Type: Bug
>    Affects Versions: 0.9.3
>            Reporter: Erik Toth
>            Priority: Minor
>
> In experimenting with a pure Node.js topology I attempted to write a simple logging consumer Bolt by merely observing the `__metrics` streams from my other existing components.
> In doing so I observed that the message sent to my tasks is not valid json. For example:
> ```
> {
>     "comp": "changes",
>     "tuple": [backtype.storm.metric.api.IMetricsConsumer$TaskInfo@28b63f13,[[__emit-count = {}],[__process-latency = {}],[__receive = {read_pos=0, write_pos=1, capacity=1024, population=1}],[__ack-count = {}],[__transfer-count = {}],[__execute-latency = {}],[__fail-count = {}],[__sendqueue = {read_pos=-1, write_pos=-1, capacity=1024, population=0}],[__execute-count = {}]]],
>     "task":4,
>     "stream":"__metrics",
>     "id":"1702055549821416448"
> }
> ```
> This seems to be able to be tracked directly to bad JSON serialization of TaskInfo and the collection of Datapoint [1].
> (Thanks!)
> [1] https://github.com/nathanmarz/storm/blob/cdb116e942666973bc4eaa0df098d5bab82739e7/storm-core/src/jvm/backtype/storm/metric/api/IMetricsConsumer.java



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