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https://issues.apache.org/jira/browse/CASSANDRA-5535?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcus Eriksson reassigned CASSANDRA-5535:
------------------------------------------

    Assignee: Marcus Eriksson
    
> Manifest file not fsynced
> -------------------------
>
>                 Key: CASSANDRA-5535
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5535
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>         Environment: RHEL 6.4
> java -version
> java version "1.6.0_31"
> Java(TM) SE Runtime Environment (build 1.6.0_31-b04)
> Java HotSpot(TM) 64-Bit Server VM (build 20.6-b01, mixed mode)
>            Reporter: Terry Cumaranatunge
>            Assignee: Marcus Eriksson
>            Priority: Minor
>
> We had several cases where the the manifest file would get corrupted when 
> doing power reset tests or iLO resets to mimic power failure scenarios, 
> ungraceful resets, kernel panics etc. It wasn't clear at the time where the 
> problem was, but I think the data below shows that Cassandra is missing an 
> fsync call to the manifest file prior to closing it. This particular stack 
> trace from below is on Cassandra 1.2.4.
> The trace was captured using strace options:
> strace -f -p 2200 -e trace=open,close,write,fsync,fdatasync,rename
> [pid 9710] 
> open("/opt/mp/storage/persistent/cassandra/cassandra-lib/data/MSA/subinfo/subinfo-tmp.json",
>  O_WRONLY|O_CREAT|O_TRUNC, 0666) = 238
> [pid 9710] write(238, "{\n \"generations\" : [ {\n \"gen"..., 3996) = 3996
> [pid 9710] write(238, "14, 263161, 263484, 270816, 2593"..., 3996) = 3996
> [pid 9710] write(238, "275136, 275137, 275138, 275139, "..., 1173) = 1173
> [pid 9710] close(238) = 0
> [pid 9710] 
> rename("/opt/mp/storage/persistent/cassandra/cassandra-lib/data/MSA/subinfo/subinfo.json"
> , 
> "/opt/mp/storage/persistent/cassandra/cassandra-lib/data/MSA/subinfo/subinfo-old.json")
>  = 0
> [pid 9710] 
> rename("/opt/mp/storage/persistent/cassandra/cassandra-lib/data/MSA/subinfo/subinfo-tmp.j
> son", 
> "/opt/mp/storage/persistent/cassandra/cassandra-lib/data/MSA/subinfo/subinfo.json")
>  = 0

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