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ENH: fileModificationSkew: add polling. Fixes #1472.

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This commit is contained in:
mattijs
2019-11-27 14:13:01 +00:00
committed by Andrew Heather
parent 1310e85225
commit 76de104daa
6 changed files with 149 additions and 55 deletions
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85
src/OpenFOAM/db/dynamicLibrary/codedBase/codedBase.C
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@ -250,54 +250,79 @@ void Foam::codedBase::createLibrary
off_t masterSize = mySize;
Pstream::scatter(masterSize);
if (debug)
for
(
label iter = 0;
iter < regIOobject::maxFileModificationPolls;
iter++
)
{
Pout<< endl<< "on processor " << Pstream::myProcNo()
DebugPout
<< "on processor " << Pstream::myProcNo()
<< " have masterSize:" << masterSize
<< " and localSize:" << mySize
<< endl;
}
if (mySize < masterSize)
{
if (debug)
if (mySize == masterSize)
{
Pout<< "Local file " << libPath
break;
}
else if (mySize > masterSize)
{
FatalIOErrorInFunction(context.dict())
<< "Excessive size when reading (NFS mounted) library "
<< nl << libPath << nl
<< "on processor " << Pstream::myProcNo()
<< " detected size " << mySize
<< " whereas master size is " << masterSize
<< " bytes." << nl
<< "If your case is NFS mounted increase"
<< " fileModificationSkew or maxFileModificationPolls;"
<< nl << "If your case is not NFS mounted"
<< " (so distributed) set fileModificationSkew"
<< " to 0"
<< exit(FatalIOError);
}
else
{
DebugPout
<< "Local file " << libPath
<< " not of same size (" << mySize
<< ") as master ("
<< masterSize << "). Waiting for "
<< regIOobject::fileModificationSkew
<< " seconds." << endl;
}
Foam::sleep(regIOobject::fileModificationSkew);
// Recheck local size
mySize = Foam::fileSize(libPath);
Foam::sleep(regIOobject::fileModificationSkew);
if (mySize < masterSize)
{
FatalIOErrorInFunction(context.dict())
<< "Cannot read (NFS mounted) library " << nl
<< libPath << nl
<< "on processor " << Pstream::myProcNo()
<< " detected size " << mySize
<< " whereas master size is " << masterSize
<< " bytes." << nl
<< "If your case is not NFS mounted"
<< " (so distributed) set fileModificationSkew"
<< " to 0"
<< exit(FatalIOError);
// Recheck local size
mySize = Foam::fileSize(libPath);
}
}
if (debug)
// Finished doing iterations. Do final check
if (mySize != masterSize)
{
Pout<< endl<< "on processor " << Pstream::myProcNo()
<< " after waiting: have masterSize:" << masterSize
<< " and localSize:" << mySize
<< endl;
FatalIOErrorInFunction(context.dict())
<< "Cannot read (NFS mounted) library " << nl
<< libPath << nl
<< "on processor " << Pstream::myProcNo()
<< " detected size " << mySize
<< " whereas master size is " << masterSize
<< " bytes." << nl
<< "If your case is NFS mounted increase"
<< " fileModificationSkew or maxFileModificationPolls;"
<< nl << "If your case is not NFS mounted"
<< " (so distributed) set fileModificationSkew"
<< " to 0"
<< exit(FatalIOError);
}
DebugPout
<< "on processor " << Pstream::myProcNo()
<< " after waiting: have masterSize:" << masterSize
<< " and localSize:" << mySize << endl;
}
reduce(create, orOp<bool>());
}