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https://issues.apache.org/jira/browse/STORM-4148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Zowalla closed STORM-4148.
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Fix Version/s: 2.8.0
Assignee: Richard Zowalla
Resolution: Fixed
> Storm UI throwing error on Component page
> -----------------------------------------
>
> Key: STORM-4148
> URL: https://issues.apache.org/jira/browse/STORM-4148
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-server
> Affects Versions: 2.7.0
> Reporter: Pedro Azevedo
> Assignee: Richard Zowalla
> Priority: Minor
> Fix For: 2.8.0
>
>
> After bumping our Storm services from Storm 1 to Storm 2, we faced an issue
> where some components fail to load through the UI.
> {code:java}
> 500 Server Error
> org.apache.storm.thrift.TApplicationException: Internal error processing
> getComponentPageInfo
> {code}
> h3. Findings:
> * We verified that the {{getComponentPageInfo}} method works correctly for
> Spouts and Bolts with names that do not contain spaces.
> * However, it fails for components with names that contain spaces.
> h3. Root Cause:
> The issue lies on how the parameter componentId is being passed. For example,
> in the {{StatsUtils.componentType}} method:
> {code:java}
> public static String componentType(StormTopology topology, String compId) {
> if (compId == null) {
> return null;
> }
> Map<String, Bolt> bolts = topology.get_bolts();
> if (Utils.isSystemId(compId) || bolts.containsKey(compId)) {
> return ClientStatsUtil.BOLT;
> }
> return ClientStatsUtil.SPOUT;
> }{code}
>
> *Error Scenario:*
> * When accessing the component page of a Bolt named {{{}Test Error{}}}, the
> {{compId}} value is {{{}"Test+Error"{}}}.
> * However, in the {{bolts}} map, the component key is stored as {{{}"Test
> Error"{}}}.
> * This mismatch prevents the {{bolts}} map from finding the component,
> leading the method to incorrectly return the {{SPOUT}} value for a Bolt.
>
>
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