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<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style="color:#1F497D">Hello!</span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style="color:#1F497D"> </span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color:#1F497D">I return to this subject. Have I understood right?</span></p>
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<span lang="EN-GB" style="color:#1F497D"><br>
</span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color:#1F497D"> </span><span style="text-indent: -18pt; font-family: Calibri, Helvetica, sans-serif, Helvetica, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 12pt;">Deduplication
requires:</span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
</p>
<ul style="margin-bottom: 0px; margin-top: 0px;">
<li><span style="font-size: 11pt; color: rgb(31, 73, 125); text-indent: -18pt;">Settings for harvester.indexserver.* and
</span><span style="font-size: 11pt; color: rgb(31, 73, 125); text-indent: -18pt;">harvester.harvesting.deduplication.enabled</span><span style="font-size: 11pt; color: rgb(31, 73, 125); text-indent: -18pt;"> = true in settings for
</span><span style="font-size: 11pt; color: rgb(31, 73, 125); text-indent: -18pt;">HarvestJobManagerApplication</span><span style="font-size: 11pt; color: rgb(31, 73, 125); text-indent: -18pt;"> on the admin host.</span></li><li><span style="font-size: 11pt; color: rgb(31, 73, 125); text-indent: -18pt;"><ref bean…> and <bean id=”</span><span style="font-size: 11pt; color: rgb(31, 73, 125); text-indent: -18pt;">DeDuplicator</span><span style="font-size: 11pt; color: rgb(31, 73, 125); text-indent: -18pt;">
…> elements in the template, containing </span><span style="color: rgb(31, 73, 125); font-size: 11pt; text-indent: -18pt;">%{DEDUPLICATION_INDEX_LOCATION_PLACEHOLDER}:</span></li></ul>
<p></p>
<p style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color:#1F497D"></p>
<div><br>
</div>
<div><bean id="DeDuplicator" class="is.hi.bok.deduplicator.DeDuplicator"></div>
<div> <property name="indexLocation" value="%{DEDUPLICATION_INDEX_LOCATION_PLACEHOLDER}"/> </div>
<div> <property name="matchingMethod" value="URL"/> </div>
<div> <property name="tryEquivalent" value="TRUE"/> </div>
<div> <property name="changeContentSize" value="false"/></div>
<div> <property name="mimeFilter" value="^text/.*"/></div>
<div> <property name="filterMode" value="BLACKLIST"/></div>
<div><!-- <property name="analyze-modes" value="TIMESTAMP"/> Does not work? --> </div>
<div> <property name="origin" value=""/></div>
<div> <property name="originHandling" value="INDEX"/></div>
<div> <property name="statsPerHost" value="true"/></div>
<div> <property name="revisitInWarcs" value="true"/></div>
<div> <property name="enabled" value="%{DEDUPLICATION_ENABLED_PLACEHOLDER}" /></div>
<div></bean> </div>
</span>
<p></p>
<p style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color:#1F497D"></span></p>
<div><br>
</div>
<div></div>
<p></p>
<p style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color:#1F497D"></span></p>
<p style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color:#1F497D"></span></p>
<p style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color:#1F497D"><b>NOTE</b>: The source code and the wiki documentation shows </span><span style="color: rgb(31, 73, 125); font-size: 11pt;">dash-delimited names but it seems it should </span><span style="color: rgb(31, 73, 125); font-size: 11pt;">be
these camel case type names. Strange! Is the source code (for DeDuplicator.java) on Github older than the binaries?</span></p>
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<span style="color: rgb(31, 73, 125); font-size: 11pt;"><br>
</span></p>
<p style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style="color: rgb(31, 73, 125); font-size: 11pt;"></span></p>
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</p>
<ul style="margin-bottom: 0px; margin-top: 0px;">
<li><span lang="EN-GB" style="color:#1F497D"> </span><span style="color: rgb(31, 73, 125); font-size: 11pt; text-indent: -18pt;">If you haven’t run with deduplication enabled in previous harvests, the
</span><span style="color: rgb(31, 73, 125); font-size: 11pt; text-indent: -18pt;">luzene</span><span style="color: rgb(31, 73, 125); font-size: 11pt; text-indent: -18pt;"> indexes are generated at the start of the first snapshot harvest where it is enabled.
True?</span></li></ul>
<p></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color:#1F497D"> </span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color:#1F497D">And a question:</span></p>
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</p>
<ul style="margin-bottom: 0px; margin-top: 0px;">
<li><span style="color: rgb(31, 73, 125); font-size: 11pt; text-indent: -18pt;">You said you move the index files manually. Do you let the files be distributed to the first harvest host and then copy a whole directory to the other hosts? Or what</span><span style="color: rgb(31, 73, 125); font-size: 11pt; text-indent: -18pt;">?</span></li></ul>
<p></p>
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<span lang="EN-GB" style="color:#1F497D"> </span></p>
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<span lang="EN-GB" style="color:#1F497D"></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color: rgb(31, 73, 125);">Regards!</span></p>
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<span lang="EN-GB" style="color: rgb(31, 73, 125);"> </span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span lang="EN-GB" style="color: rgb(31, 73, 125);">Peter Svanberg, Sweden</span></p>
</span>
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<span lang="EN-GB" style="color:#1F497D"> </span></p>
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<span lang="EN-GB" style="color:#1F497D"> </span></p>
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<a name="_MailOriginal"></a><span style=""><span style=""><b><span lang="EN-GB" style="">Från</span></b></span></span><span style=""><b><span lang="EN-GB" style="">:</span></b></span><span style=""><span lang="EN-GB" style="">
<span style="">NetarchiveSuite</span>-users <netarchivesuite-users-bounces@ml.sbforge.org>
<span style=""><b>För</b></span><b> </b>Tue Hejlskov Larsen<br>
<span style=""><b>Skickat</b></span><b>:</b> den 26 <span style="">juni</span> 20</span></span><span style=""><span style="">19 21:28<br>
<b>Till:</b> netarchivesuite-users@ml.sbforge.org<br>
<b>Ämne:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?; Deduplication</span></span></p>
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<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""> </span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">Best regards</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">Tue </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
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<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><b><span lang="EN-US" style="">From:</span></b></span><span style=""><span lang="EN-US" style=""> NetarchiveSuite-users <</span></span><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-US" style="">netarchivesuite-users-bounces@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="EN-US" style="">>
<b>On Behalf Of </b>Peter Svanberg<br>
<b>Sent:</b> Wedne</span></span><span style=""><span lang="DA" style="">sday, June 26, 2019 7:10 PM<br>
<b>To:</b> </span></span><a href="mailto:netarchivesuite-users@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="DA" style="">netarchivesuite-users@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="DA" style=""><br>
<b>Subject:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?; Deduplication</span></span></p>
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<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="DA" style=""> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">Deduplication: You use is.hi.bok.deduplicator.DeDuplicator, which (if I understand correct):</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="text-indent: -18pt; margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="font-family:Symbol; color:#1F497D"><span style="">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-GB" style="color:#1F497D">Saves visited 2xx-URL:s with its checksum value in a Lucine index database.</span></span></p>
<p style="text-indent: -18pt; margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="font-family:Symbol; color:#1F497D"><span style="">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-GB" style="color:#1F497D">Decides equality via checksum and can treat any two fetched
</span></span><a href="" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">URL:s</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style="color:#1F497D"> as equal.</span></span></p>
<p style="text-indent: -18pt; margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="font-family:Symbol; color:#1F497D"><span style="">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-GB" style="color:#1F497D">The index database can contain data from several earlier crawls, not only the current.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">You limit the use (perhaps via default parameter values) to</span></span></p>
<p style="text-indent: -18pt; margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="font-family:Symbol; color:#1F497D"><span style="">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><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)
</span></span></p>
<p style="text-indent: -18pt; margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="font-family:Symbol; color:#1F497D"><span style="">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-GB" style="color:#1F497D">Don’t apply to mime-type text/*.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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?</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">Do you get 40–50 % data reduction on a broad crawl with this limits? Okay, many large
</span></span><a href="" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">URL:s</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style="color:#1F497D"> have links from many other
</span></span><a href="" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">URL:s</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style="color:#1F497D">, I suppose.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">Have you considered not using those limits? Are there performance losses in having to many revisit records?</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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?</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">Regards!</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">Peter Svanberg</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
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<span style=""><b><span lang="EN-GB" style="">Från:</span></b></span><span style=""><span lang="EN-GB" style=""> NetarchiveSuite-users <</span></span><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">netarchivesuite-users-bounces@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style="">>
<b>För </b>Tue Hejlskov Larsen<br>
<b>Skickat:</b> den 24 juni 2019 21:26<br>
<b>Till:</b> </span></span><a href="mailto:netarchivesuite-users@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">netarchivesuite-users@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style=""><br>
<b>Ämne:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?</span></span></p>
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<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style=""> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">See my TLR comments below</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
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<span style=""><b><span lang="DA" style="">From:</span></b></span><span style=""><span lang="DA" style=""> NetarchiveSuite-users <</span></span><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="DA" style="">netarchivesuite-users-bounces@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="DA" style="">>
<b>On Behalf Of </b>Peter Svanberg<br>
<b>Sent:</b> Monday, June 24, 2019 5:05 PM<br>
<b>To:</b> </span></span><a href="mailto:netarchivesuite-users@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="DA" style="">netarchivesuite-users@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="DA" style=""><br>
<b>Subject:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?</span></span></p>
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<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="DA" style=""> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">I continue with my curiosity, I hope it’s OK.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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?)</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">And 20 TByte is what ends up being to stored in the archive?
</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">TLR>>> yes</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">Approximately how many URI:s does this correspond to – before and after deduplication?</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.
</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">So you need to specify which type of return code urls you want numbers for
</span></span><span style=""><span lang="EN-GB" style="font-family:Wingdings; color:#1F497D">J</span></span><span style=""><span lang="EN-GB" style="color:#1F497D">. We do some daily statistics for some of the return codes. It is really huge numbers!</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">TLR>>>Deduplication gives appr. 40-50 % and gz 40-50 %. </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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)?</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">TLR>>> yes we have following steps:</span></span></p>
<p style="text-indent: -18pt; margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"><span style="">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-GB" style="color:#1F497D">Step 1: 50 MB byte limit : all domains in the jobs database : duration 1-2 weeks</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="text-indent: -18pt; margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"><span style="">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><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.</span></span></p>
<p style="text-indent: -18pt; margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"><span style="">3)<span style="font:7.0pt "Times New Roman"">
</span></span></span><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.
</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">So we are using the most of our harvester capacity in long periods during the “broad crawl”.
</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">
</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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?</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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).
</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
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<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">Med venlig hilsen</span></span><span style=""><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial",sans-serif; color:black"><br>
<br>
</span></span><span style=""><span lang="EN-GB" style="font-family:"Arial",sans-serif; color:black">Peter Svanberg</span></span><span style=""><span lang="EN-GB" style="color:#1F497D"></span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
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<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><b><span lang="EN-GB" style="">Från:</span></b></span><span style=""><span lang="EN-GB" style=""> NetarchiveSuite-users <</span></span><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">netarchivesuite-users-bounces@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style="">>
<b>För </b>Tue Hejlskov Larsen<br>
<b>Skickat:</b> den 24 juni 2019 15:16<br>
<b>Till:</b> </span></span><a href="mailto:netarchivesuite-users@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">netarchivesuite-users@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style=""><br>
<b>Ämne:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?</span></span></p>
</div>
</div>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style=""> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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!) </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">Best regards</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">Tue</span></span></p>
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<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
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<span style=""><b><span lang="DA" style="">From:</span></b></span><span style=""><span lang="DA" style=""> NetarchiveSuite-users <</span></span><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="DA" style="">netarchivesuite-users-bounces@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="DA" style="">>
<b>On Behalf Of </b>Peter Svanberg<br>
<b>Sent:</b> Monday, June 24, 2019 2:54 PM<br>
<b>To:</b> </span></span><a href="mailto:netarchivesuite-users@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="DA" style="">netarchivesuite-users@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="DA" style=""><br>
<b>Subject:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?</span></span></p>
</div>
</div>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="DA" style=""> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">Thank you Tue, this is very interesting information!</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">About 70 TB in how many days?</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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?)?</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">I’ll return when I have gathered corresponding info on our environment.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D">Regards,</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial",sans-serif; color:black">-----<br>
<br>
</span></span><span style=""><span lang="EN-GB" style="font-family:"Arial",sans-serif; color:black">Peter Svanberg</span></span><span style=""><span lang="EN-GB" style="color:#1F497D"><br>
</span></span><span style=""><span lang="EN-GB" style="font-size:9.0pt; color:#1F497D"><br>
</span></span><span style=""><span lang="EN-GB" style="font-family:"Arial",sans-serif; color:#1F497D">National Library of Sweden</span></span><span style=""><span lang="EN-GB" style="color:#1F497D"><br>
</span></span><span style=""><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial",sans-serif; color:#1F497D">Phone: +46 10 709
</span></span><span style=""><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial",sans-serif; color:black">32 78</span></span><span style=""><span lang="EN-GB" style="font-size:9.0pt; color:#1F497D"><br>
<br>
</span></span><span style=""><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial",sans-serif; color:#1F497D">E-mail</span></span><span style=""><span lang="EN-GB" style="font-size:9.0pt; color:#1F497D">:
</span></span><a href="mailto:peter.svanberg@kb.se" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial",sans-serif">peter.svanberg@kb.se</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style="font-size:9.0pt; color:black"><br>
</span></span><span style=""><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial",sans-serif; color:#1F497D">Web</span></span><span style=""><span lang="EN-GB" style="font-size:9.0pt; color:#1F497D">:
</span></span><a href="http://www.kb.se" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="font-size:9.0pt; font-family:"Arial",sans-serif">www.kb.se</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style="color:#1F497D"></span></span></p>
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<span style=""><span lang="EN-GB" style="color:#1F497D"> </span></span></p>
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<span style=""><b><span lang="EN-GB" style="">Från:</span></b></span><span style=""><span lang="EN-GB" style=""> NetarchiveSuite-users <</span></span><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">netarchivesuite-users-bounces@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style="">>
<b>För </b>Tue Hejlskov Larsen<br>
<b>Skickat:</b> den 24 juni 2019 12:22<br>
<b>Till:</b> </span></span><a href="mailto:netarchivesuite-users@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">netarchivesuite-users@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="EN-GB" style=""><br>
<b>Ämne:</b> Re: [Netarchivesuite-users] Your URI/sec and KB/sec figures?</span></span></p>
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<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-GB" style=""> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">Hi Peter</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">Our harvesting capacity is 90-100 Heritrix harvesters including some virtual Umbra harvesters…</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">We are using physical servers for the broadcrawl harvesters and virtual servers for selective harvesters.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">The 5 physical servers have each:</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">32 G MEM, 24 CPU’s, 4 TB local storage</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">The 5 Virtual servers using NFS:</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">20 G RAM, 8 CPU’s and 3 TB NFS storage</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><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.</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">Best regards</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D">Tue</span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
<p style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style=""><span lang="EN-US" style="color:#1F497D"> </span></span></p>
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<span style=""><b><span lang="DA" style="">From:</span></b></span><span style=""><span lang="DA" style=""> NetarchiveSuite-users <</span></span><a href="mailto:netarchivesuite-users-bounces@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="DA" style="">netarchivesuite-users-bounces@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="DA" style="">>
<b>On Behalf Of </b>Peter Svanberg<br>
<b>Sent:</b> Monday, June 24, 2019 11:39 AM<br>
<b>To:</b> </span></span><a href="mailto:netarchivesuite-users@ml.sbforge.org" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="DA" style="">netarchivesuite-users@ml.sbforge.org</span></span><span style=""></span></a><span style=""><span lang="DA" style=""><br>
<b>Subject:</b> [Netarchivesuite-users] Your URI/sec and KB/sec figures?</span></span></p>
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<span style=""><span lang="DA" style=""> </span></span></p>
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<span style=""><span lang="EN-GB" style="">Hello!</span></span></p>
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<span style=""><span lang="EN-GB" style="">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?</span></span></p>
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<span style=""><span lang="EN-GB" style="">Our latest 19 selective harvests have the following figures (from crawl-report.txt in the jobs metadata WARC file):</span></span></p>
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<span style=""><span lang="EN-GB" style="">URIs/sec: slowest job 0,83; fastest job 9,8; average 5,11</span></span></p>
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<span style=""><span lang="EN-GB" style="">KB/sec: slowest 34; fastest 863; average 313</span></span></p>
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<span style=""><span lang="EN-GB" style="">(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?)</span></span></p>
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<span style=""><span lang="EN-GB" style="">* </span></span><a href="https://groups.yahoo.com/neo/groups/archive-crawler/conversations/messages" style="color: rgb(5, 99, 193); text-decoration: underline;"><span style=""><span lang="EN-GB" style="">https://groups.yahoo.com/neo/groups/archive-crawler/conversations/messages</span></span><span style=""></span></a><span style=""></span><span lang="EN-GB" style=""></span></p>
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