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https://issues.apache.org/jira/browse/TS-4471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15298285#comment-15298285
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Thomas Jackson commented on TS-4471:
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Its actually an issue period. In 6.x the hostname was added to the hostdbinfo
record always-- and the size of multicache wasn't increased accordingly-- so
without the workaround you'll see (and [~zwoop] and I have both seen) crashes
in hostdb-- specifically that RR records etc start going missing as the
half-spaces in multicache get flipped too quickly. AFAIK this issue has existed
always on the 6.x branch-- and is one of the reasons its been fairly slow to
adopt-- hence the workaround.
> Old hostdb configuration settings cause traffic_server not to start
> -------------------------------------------------------------------
>
> Key: TS-4471
> URL: https://issues.apache.org/jira/browse/TS-4471
> Project: Traffic Server
> Issue Type: Bug
> Components: HostDB
> Affects Versions: 6.2.0
> Reporter: Bryan Call
> Assignee: Thomas Jackson
> Fix For: 7.0.0
>
>
> Errors in the logs:
> {code}
> [May 18 20:42:55.266] Server {0x2b6cb3ed3340} WARNING: configuration changed:
> [hostdb.config] : reinitializing database
> [May 18 20:42:55.266] Server {0x2b6cb3ed3340} NOTE: reconfiguring host
> database
> [May 18 20:42:55.266] Server {0x2b6cb3ed3340} WARNING: Configured store too
> small (actual=50331648 required=75612160), unable to reconfigure
> [May 18 20:42:55.266] Server {0x2b6cb3ed3340} WARNING: unable to initialize
> database (too little storage)
> : [hostdb.config] : disabling database
> {code}
> After removing the hostdb config settings on the size, traffic_server was
> able to start and recreated the hostdb file.
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