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Posted to issues@kudu.apache.org by "Adar Dembo (JIRA)" <ji...@apache.org> on 2017/03/12 20:38:04 UTC

[jira] [Updated] (KUDU-1931) Servers using the FBM may crash after a Flush

     [ https://issues.apache.org/jira/browse/KUDU-1931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adar Dembo updated KUDU-1931:
-----------------------------
    Status: In Review  (was: In Progress)

> Servers using the FBM may crash after a Flush
> ---------------------------------------------
>
>                 Key: KUDU-1931
>                 URL: https://issues.apache.org/jira/browse/KUDU-1931
>             Project: Kudu
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 1.2.0
>            Reporter: Adar Dembo
>            Assignee: Adar Dembo
>             Fix For: 1.4.0
>
>
> The file block manager interacts with RandomAccessFiles via the file cache, and the file cache RandomAccessFile descriptor's implementation of memory_footprint() can lead to a crash, due to its use of std::make_shared() to allocate the underlying memory.
> Just how likely the crash is to occur is unclear: it happens with near certainty using glibc's malloc, but I haven't seen it happen with tcmalloc. Because of that, I'm inclined to restrict the fix to 1.4 rather than get it into 1.3 (or even 1.2.1).



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