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Posted to issues@trafficserver.apache.org by "John Rushford (JIRA)" <ji...@apache.org> on 2016/08/31 14:29:20 UTC
[jira] [Resolved] (TS-4744) ParentConsistentHash::selectParent may
select the unavailable parent
[ https://issues.apache.org/jira/browse/TS-4744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
John Rushford resolved TS-4744.
-------------------------------
Resolution: Fixed
patch was merged.
> ParentConsistentHash::selectParent may select the unavailable parent
> --------------------------------------------------------------------
>
> Key: TS-4744
> URL: https://issues.apache.org/jira/browse/TS-4744
> Project: Traffic Server
> Issue Type: Bug
> Components: Parent Proxy
> Reporter: xiangdong chen
> Assignee: John Rushford
> Fix For: 7.0.0
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> code :ParentConsistentHash.cc,begin at line 141
> do { // search until we've selected a different parent.
> prtmp = (pRecord *)fhash->lookup(NULL, &result->chashIter[last_lookup], &wrap_around[last_lookup], &hash);
> if (prtmp) {
> pRec = (parents[last_lookup] + prtmp->idx);
> }
> } while (prtmp && strcmp(prtmp->hostname, result->hostname) == 0);
> fix it like this:
> if (prtmp)
> pRec = (parents[last_lookup] + prtmp->idx);
> else //begin of added xdchen, line:143
> pRec = NULL; //endof of added by xdchen
> if (prtmp) {
> pRec = (parents[last_lookup] + prtmp->idx);
> Debug("parent_select", "Selected a new parent: %s.", pRec->hostname);
> }
> else //begin of added xdchen, line:188
> pRec = NULL; ////end of added xdchen
>
> }
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