Exemple #1
0
    virtual void init()
    {
        CSortBaseActivityMaster::init();
        IHThorSortArg *helper = (IHThorSortArg *)queryHelper();
        IHThorAlgorithm *algo = static_cast<IHThorAlgorithm *>(helper->selectInterface(TAIalgorithm_1));
        OwnedRoxieString algoname(algo->getAlgorithm());
        unsigned flags = algo->getAlgorithmFlags();
        if (algoname && (0 != stricmp(algoname, "quicksort")))
        {
            Owned<IException> e = MakeActivityException(this, 0, "Ignoring, unsupported sort order algorithm '%s'", algoname.get());
            reportExceptionToWorkunit(container.queryJob().queryWorkUnit(), e);
        }
        OwnedRoxieString cosortlogname(helper->getSortedFilename());
        if (cosortlogname&&*cosortlogname)
        {
            Owned<IDistributedFile> coSortFile = queryThorFileManager().lookup(container.queryJob(), cosortlogname);
            addReadFile(coSortFile);
            Owned<IFileDescriptor> fileDesc = coSortFile->getFileDescriptor();
            unsigned o;
            for (o=0; o<fileDesc->numParts(); o++)
            {
                Owned<IPartDescriptor> partDesc = fileDesc->getPart(o);
                if (cosortfilenames.length())
                    cosortfilenames.append("|");

                // JCSMORE - picking the primary here, means no automatic use of backup copy, could use RMF's possibly.
                getPartFilename(*partDesc, 0, cosortfilenames);
            }
        }
    }
Exemple #2
0
    virtual void process()
    {
        ActPrintLog("process");

        CMasterActivity::process();

        IHThorSortArg *helper = (IHThorSortArg *)queryHelper();
        StringBuffer skewV;
        double skewError;
        container.queryJob().getWorkUnitValue("overrideSkewError", skewV);
        if (skewV.length())
            skewError = atof(skewV.str());
        else
        {
            skewError = helper->getSkew();
            if (!skewError)
            {
                container.queryJob().getWorkUnitValue("defaultSkewError", skewV.clear());
                if (skewV.length())
                    skewError = atof(skewV.str());
            }
        }
        container.queryJob().getWorkUnitValue("defaultSkewWarning", skewV.clear());
        double defaultSkewWarning = skewV.length() ? atof(skewV.str()) : 0;
        double skewWarning = defaultSkewWarning;
        unsigned __int64 skewThreshold = container.queryJob().getWorkUnitValueInt("overrideSkewThreshold", 0);
        if (!skewThreshold)
        {
            skewThreshold = helper->getThreshold();         
            if (!skewThreshold)
                skewThreshold = container.queryJob().getWorkUnitValueInt("defaultSkewThreshold", 0);
        }
        StringBuffer cosortfilenames;
        const char *cosortlogname = helper->getSortedFilename();
        if (cosortlogname&&*cosortlogname) {

            Owned<IDistributedFile> file = queryThorFileManager().lookup(container.queryJob(), cosortlogname);
            Owned<IFileDescriptor> fileDesc = file->getFileDescriptor();
            queryThorFileManager().noteFileRead(container.queryJob(), file);
            unsigned o;
            for (o=0; o<fileDesc->numParts(); o++)
            {
                Owned<IPartDescriptor> partDesc = fileDesc->getPart(o);
                if (cosortfilenames.length())
                    cosortfilenames.append("|");

                // JCSMORE - picking the primary here, means no automatic use of backup copy, could use RMF's possibly.
                getPartFilename(*partDesc, 0, cosortfilenames);
            }
        }

        Owned<IRowInterfaces> rowif = createRowInterfaces(container.queryInput(0)->queryHelper()->queryOutputMeta(),queryActivityId(),queryCodeContext());
        Owned<IRowInterfaces> auxrowif = createRowInterfaces(helper->querySortedRecordSize(),queryActivityId(),queryCodeContext());
        try {   
            imaster->SortSetup(rowif,helper->queryCompare(),helper->querySerialize(),cosortfilenames.length()!=0,true,cosortfilenames.toCharArray(),auxrowif);
            if (barrier->wait(false)) { // local sort complete
                size32_t maxdeviance=globals->getPropInt("@sort_max_deviance", 10*1024*1024);
                if (!imaster->Sort(skewThreshold,skewWarning,skewError,maxdeviance,true,false,false,(unsigned)globals->getPropInt("@smallSortThreshold"))) {
                    Owned<IThorException> e = MakeActivityException(this, TE_SortFailedSkewExceeded,"SORT failed, skew exceeded");
                    fireException(e);
                }
                barrier->wait(false); // merge complete
            }
            imaster->SortDone();
        }
        catch (IException *e)
        {
            ActPrintLog(e, "WARNING: exception during sort");
            throw;
        }
        ::Release(imaster);
        ActPrintLog("process exit");
    }