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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">We are using the NAS Indexserver and there is
<b>no database</b> – only a cached filesystem with generated lucene gz indexes.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Every time a new harvest is generated a new index-server job is generated by the Indexserver to collect only the
<b>previous harvest job crawllogs</b> files and cdxfiles included in the metadata warc files for each harvest. Out of that is a lucene gz index generated in the cache directory. The next step is that the jobs in the harvest are generated by the job database
and picked up by the active e.g. broad crawl harvesters. They request the index in the Index server cache and it is copied to the actual harvester server cache and used by all harvesters on that server. So here it is very important to only have 1 broad crawl
harvester active in the beginning – otherwise it will bomb your ftp server on that server. Remember to do the same for each broad crawl server. So when the harvester have the cached index on the local harvester server it starts running and each harvested
url is compared with by url and checkum in the cached lucene index. If it is already there it is removed and the duplicate is annotated in the crawllog and a revisit is made.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">After the job is finished we have a NAS Waybackindexer and Aggregater which runs every day. It uses a local derby database to manage which files are CDX indexed. The Waybackindexer runs a complete
archive file list and compare it with the derby database and all new files are indexet using the job metadata warc file included cdx files and the crawllog dublicate annotations to generate a complete CDX for all harvested object also the duplicates in the
job warcfiles. We are not using the revisits and the OpenWayback cdx indexserver.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Tue <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:DA">From:</span></b><span lang="EN-US" style="mso-fareast-language:DA"> NetarchiveSuite-users <netarchivesuite-users-bounces@ml.sbforge.org>
<b>On Behalf Of </b>Peter Svanberg<br>
<b>Sent:</b> Wedne</span><span style="mso-fareast-language:DA">sday, June 26, 2019 7:10 PM<br>
<b>To:</b> netarchivesuite-users@ml.sbforge.org<br>
<b>Subject:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?; Deduplication<o:p></o:p></span></p>
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</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Deduplication: You use is.hi.bok.deduplicator.DeDuplicator, which (if I understand correct):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-GB" style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB" style="color:#1F497D">Saves visited 2xx-URL:s with its checksum value in a Lucine index database.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-GB" style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB" style="color:#1F497D">Decides equality via checksum and can treat any two fetched
<a href="URL:s">URL:s</a> as equal.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-GB" style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB" style="color:#1F497D">The index database can contain data from several earlier crawls, not only the current.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">You limit the use (perhaps via default parameter values) to<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-GB" style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB" style="color:#1F497D">Just consider same URLs, or “equivalent” URL (same domain and path but different www[0-9] hostname prefix)
<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-GB" style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB" style="color:#1F497D">Don’t apply to mime-type text/*.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Do you use this on a broad crawl? With one index database for the whole process, being updated from all harvesters?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Do you get 40–50 % data reduction on a broad crawl with this limits? Okay, many large
<a href="URL:s">URL:s</a> have links from many other <a href="URL:s">URL:s</a>, I suppose.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Have you considered not using those limits? Are there performance losses in having to many revisit records?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">I suppose there is an equivalent module for OpenWayback which use the same index database to find the warc file for the record pointed out by a revisit record? And also for pyweb?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Regards!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Peter Svanberg<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-GB" style="mso-fareast-language:SV">Från:</span></b><span lang="EN-GB" style="mso-fareast-language:SV"> NetarchiveSuite-users <<a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org">netarchivesuite-users-bounces@ml.sbforge.org</a>>
<b>För </b>Tue Hejlskov Larsen<br>
<b>Skickat:</b> den 24 juni 2019 21:26<br>
<b>Till:</b> <a href="mailto:netarchivesuite-users@ml.sbforge.org">netarchivesuite-users@ml.sbforge.org</a><br>
<b>Ämne:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">See my TLR comments below<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="mso-fareast-language:DA">From:</span></b><span style="mso-fareast-language:DA"> NetarchiveSuite-users <</span><span lang="SV"><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org"><span lang="DA" style="mso-fareast-language:DA">netarchivesuite-users-bounces@ml.sbforge.org</span></a></span><span style="mso-fareast-language:DA">>
<b>On Behalf Of </b>Peter Svanberg<br>
<b>Sent:</b> Monday, June 24, 2019 5:05 PM<br>
<b>To:</b> </span><span lang="SV"><a href="mailto:netarchivesuite-users@ml.sbforge.org"><span lang="DA" style="mso-fareast-language:DA">netarchivesuite-users@ml.sbforge.org</span></a></span><span style="mso-fareast-language:DA"><br>
<b>Subject:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">I continue with my curiosity, I hope it’s OK.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">You mean about 70 TByte fetched in about 100–120 days? (Or was the selective “mega” included in 70?)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">TLR>>> yes we run both broadcrawl step 1 and step 2 and selective broad crawl jobs in parallel, because we have 2 dedicated harvester farms in AAR and CPH.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">And 20 TByte is what ends up being to stored in the archive?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">TLR>>> yes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Approximately how many URI:s does this correspond to – before and after deduplication?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">TLR >>> We are talking million/billion urls, - just to mention - we have 1.1 billion 5003 “byte limit reached” in step 2. All urls are recorded in the crawllogs also the deduplicated are annotated
there. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">So you need to specify which type of return code urls you want numbers for
</span><span lang="EN-GB" style="font-family:Wingdings;color:#1F497D">J</span><span lang="EN-GB" style="color:#1F497D">. We do some daily statistics for some of the return codes. It is really huge numbers!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">TLR>>>Deduplication gives appr. 40-50 % and gz 40-50 %. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">We have been advised to do the broad crawl in several steps with increasing max thresholds, is that what you do in 2 steps? With what thresholds different (and what levels)?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">TLR>>> yes we have following steps:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:32.2pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span lang="EN-GB" style="color:#1F497D"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB" style="color:#1F497D">Step 1: 50 MB byte limit : all domains in the jobs database : duration 1-2 weeks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">We do some sqlextraction from the jobdatabase and increase the max bytelimit per domain for some 10- 20.000 domains before each new step 2 broad crawl.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:32.2pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span lang="EN-GB" style="color:#1F497D"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB" style="color:#1F497D">Step 2: 16 GB byte limit: all domains which have hit 50 MB limit: duration 1-2 months.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:32.2pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span lang="EN-GB" style="color:#1F497D"><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB" style="color:#1F497D">And we run about 3-4 big selective broad crawl harvests in parallel - with different (huge) domains - taken out of the step 2 broad crawl. They run 3 – 6 weeks each and each harvest
creates about 10 -20 jobs running in parallel in AAR together with the normal daily selective harvests.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">So we are using the most of our harvester capacity in long periods during the “broad crawl”.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">And with reference to the subject line … what is your typical URI/sec and KB/sec figures in a single job?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">TLR>>> I have not looked into that ( we have between 50-90 different jobs /day) , because we are using the NAS std. setup ( you have got a copy of that earlier).
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">The main problem was earlier - domains which blocked/throttled us and next that our capacity agreements with the biggest webhotels where too low. The biggest one ( a .be company) have about 50-75
% of all .dk domains.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">After we have increased our max concurrent requests agreements with them to 40MB/sec for our harvester ip ranges in AAR and CPH and upgraded to NAS 5.5 we have no big performance issues anymore.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-GB" style="color:#1F497D">Med venlig hilsen</span><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:SV"><br>
<br>
</span><span lang="EN-GB" style="font-family:"Arial",sans-serif;color:black;mso-fareast-language:SV">Peter Svanberg</span><span lang="EN-GB" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-GB" style="mso-fareast-language:SV">Från:</span></b><span lang="EN-GB" style="mso-fareast-language:SV"> NetarchiveSuite-users <</span><span lang="SV"><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org"><span lang="EN-GB" style="mso-fareast-language:SV">netarchivesuite-users-bounces@ml.sbforge.org</span></a></span><span lang="EN-GB" style="mso-fareast-language:SV">>
<b>För </b>Tue Hejlskov Larsen<br>
<b>Skickat:</b> den 24 juni 2019 15:16<br>
<b>Till:</b> </span><span lang="SV"><a href="mailto:netarchivesuite-users@ml.sbforge.org"><span lang="EN-GB" style="mso-fareast-language:SV">netarchivesuite-users@ml.sbforge.org</span></a></span><span lang="EN-GB" style="mso-fareast-language:SV"><br>
<b>Ämne:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The 70 TB is based on NAS GUI/crawllog numbers – and before deduplication and gz – about 20 TB gz uploaded.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">“A broadcrawl” runs about 2 - 2 1/2 months - and we do some job follow up during step 2 ( this part takes about 1 ½ month) and the selective broad crawl job “mega big sites” (runs for a month or
more and here we use another queue assign policy and much lower delays and harvest only domains which can take a huge number of crawling requests!) <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Tue<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="mso-fareast-language:DA">From:</span></b><span style="mso-fareast-language:DA"> NetarchiveSuite-users <</span><span lang="SV"><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org"><span lang="DA" style="mso-fareast-language:DA">netarchivesuite-users-bounces@ml.sbforge.org</span></a></span><span style="mso-fareast-language:DA">>
<b>On Behalf Of </b>Peter Svanberg<br>
<b>Sent:</b> Monday, June 24, 2019 2:54 PM<br>
<b>To:</b> </span><span lang="SV"><a href="mailto:netarchivesuite-users@ml.sbforge.org"><span lang="DA" style="mso-fareast-language:DA">netarchivesuite-users@ml.sbforge.org</span></a></span><span style="mso-fareast-language:DA"><br>
<b>Subject:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Thank you Tue, this is very interesting information!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">About 70 TB in how many days?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">You emphasize “harvested” – do you aim at that more data is downloaded but not archived (sorted out duplicates/irrelevant?)?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">I’ll return when I have gathered corresponding info on our environment.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:SV">-----<br>
<br>
</span><span lang="EN-GB" style="font-family:"Arial",sans-serif;color:black;mso-fareast-language:SV">Peter Svanberg</span><span lang="EN-GB" style="color:#1F497D;mso-fareast-language:SV"><br>
</span><span lang="EN-GB" style="font-size:9.0pt;color:#1F497D;mso-fareast-language:SV"><br>
</span><span lang="EN-GB" style="font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:SV">National Library of Sweden</span><span lang="EN-GB" style="color:#1F497D;mso-fareast-language:SV"><br>
</span><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:SV">Phone: +46 10 709
</span><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:SV">32 78</span><span lang="EN-GB" style="font-size:9.0pt;color:#1F497D;mso-fareast-language:SV"><br>
<br>
</span><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:SV">E-mail</span><span lang="EN-GB" style="font-size:9.0pt;color:#1F497D;mso-fareast-language:SV">:
</span><span lang="SV"><a href="mailto:peter.svanberg@kb.se"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;mso-fareast-language:SV">peter.svanberg@kb.se</span></a></span><span lang="EN-GB" style="font-size:9.0pt;color:black;mso-fareast-language:SV"><br>
</span><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:SV">Web</span><span lang="EN-GB" style="font-size:9.0pt;color:#1F497D;mso-fareast-language:SV">:
</span><span lang="SV"><a href="http://www.kb.se"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;mso-fareast-language:SV">www.kb.se</span></a></span><span lang="EN-GB" style="color:#1F497D;mso-fareast-language:SV"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-GB" style="mso-fareast-language:SV">Från:</span></b><span lang="EN-GB" style="mso-fareast-language:SV"> NetarchiveSuite-users <</span><span lang="SV"><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org"><span lang="EN-GB" style="mso-fareast-language:SV">netarchivesuite-users-bounces@ml.sbforge.org</span></a></span><span lang="EN-GB" style="mso-fareast-language:SV">>
<b>För </b>Tue Hejlskov Larsen<br>
<b>Skickat:</b> den 24 juni 2019 12:22<br>
<b>Till:</b> </span><span lang="SV"><a href="mailto:netarchivesuite-users@ml.sbforge.org"><span lang="EN-GB" style="mso-fareast-language:SV">netarchivesuite-users@ml.sbforge.org</span></a></span><span lang="EN-GB" style="mso-fareast-language:SV"><br>
<b>Ämne:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Hi Peter<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">We have currently only minor performance issues during harvesting. We have almost finished with our 2. broadcrawl this year – it will end up between 60-70 TB
<i>harvested</i> pages.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Our harvesting capacity is 90-100 Heritrix harvesters including some virtual Umbra harvesters…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">We are using physical servers for the broadcrawl harvesters and virtual servers for selective harvesters.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The 5 physical servers have each:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">32 G MEM, 24 CPU’s, 4 TB local storage<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The 5 Virtual servers using NFS:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">20 G RAM, 8 CPU’s and 3 TB NFS storage<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">On each server we have between 8-10 Heritrix instances running – withdrawn the Umbra harvesters which only have one per server.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Between the harvester and the www we have a firewall and throttling firewall agreements with about 5 webhotels, because they blocked/throttled our harvesters.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Tue<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="mso-fareast-language:DA">From:</span></b><span style="mso-fareast-language:DA"> NetarchiveSuite-users <</span><span lang="SV"><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org"><span lang="DA" style="mso-fareast-language:DA">netarchivesuite-users-bounces@ml.sbforge.org</span></a></span><span style="mso-fareast-language:DA">>
<b>On Behalf Of </b>Peter Svanberg<br>
<b>Sent:</b> Monday, June 24, 2019 11:39 AM<br>
<b>To:</b> </span><span lang="SV"><a href="mailto:netarchivesuite-users@ml.sbforge.org"><span lang="DA" style="mso-fareast-language:DA">netarchivesuite-users@ml.sbforge.org</span></a></span><span style="mso-fareast-language:DA"><br>
<b>Subject:</b> [Netarchivesuite-users] Your URI/sec and KB/sec figures?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Hello!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I discovered a Heritrix mailinglist(*). Amongst some interesting tips on making the crawl faster, I also read some speed figures far from what we ever get. So I ask you: what do you get as speed values?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Our latest 19 selective harvests have the following figures (from crawl-report.txt in the jobs metadata WARC file):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">URIs/sec: slowest job 0,83; fastest job 9,8; average 5,11<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">KB/sec: slowest 34; fastest 863; average 313<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(I realize that this besides NAS/Heritrix configuration depends much on hardware, memory, disk I/O, network capacity etc. but don’t know which such figures that are most relevant to add to this comparison. Suggestions?)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">* </span><span lang="SV"><a href="https://groups.yahoo.com/neo/groups/archive-crawler/conversations/messages"><span lang="EN-GB">https://groups.yahoo.com/neo/groups/archive-crawler/conversations/messages</span></a></span><span lang="EN-GB"><o:p></o:p></span></p>
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