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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Sounds good to me<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:13.0pt;font-family:"Arial",sans-serif">Alessandro Luccaroni</span></b>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Platform Manager @ Diennea - MagNews<br>
</span><span style="font-size:8.5pt;font-family:"Arial",sans-serif">Tel.: (+39) 0546 066100 Int. 924 - Mob.: (+39) 393 7273519</span><br>
<span style="font-size:8.5pt;font-family:"Arial",sans-serif">Viale G.Marconi 30/14 - 48018 Faenza (RA) - Italy</span><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>Da:</b> herddb-dev-bounces@mail4.mag-news.it <herddb-dev-bounces@mail4.mag-news.it>
<b>Per conto di </b>Enrico Olivelli<br>
<b>Inviato:</b> martedì 1 settembre 2020 17:30<br>
<b>A:</b> Herddb developers <herddb-dev@lists.herddb.org><br>
<b>Oggetto:</b> Re: [Herddb-dev] New Diskless Cluster Mode v2<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I will cut 0.19.0 tomorrow if no one objects.<o:p></o:p></p>
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<p class="MsoNormal">Tests are passing, release early, release often !!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">cheers<o:p></o:p></p>
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<p class="MsoNormal">Enrico<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Il giorno mar 1 set 2020 alle ore 17:24 Diego Salvi - Diennea <<a href="mailto:diego.salvi@diennea.com">diego.salvi@diennea.com</a>> ha scritto:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I think this is the right time to a new release.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">The official docker image can wait a next minor, it shouldn’t block the main release.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Diego</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:12.0pt;color:black">Da:
</span></b><span style="font-size:12.0pt;color:black"><<a href="mailto:herddb-dev-bounces@mail4.mag-news.it" target="_blank">herddb-dev-bounces@mail4.mag-news.it</a>> per conto di Enrico Olivelli <<a href="mailto:eolivelli@gmail.com" target="_blank">eolivelli@gmail.com</a>><br>
<b>Risposta: </b>Herddb developers <<a href="mailto:herddb-dev@mail4.mag-news.it" target="_blank">herddb-dev@mail4.mag-news.it</a>><br>
<b>Data: </b>martedì 1 settembre 2020 13:30<br>
<b>A: </b>Herddb developers <<a href="mailto:herddb-dev@lists.herddb.org" target="_blank">herddb-dev@lists.herddb.org</a>><br>
<b>Oggetto: </b>Re: [Herddb-dev] New Diskless Cluster Mode v2</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi all,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">we have committed option 2: "create default tablespace 'herd' with replica = '*', storageMode: bookkeeper and maxleaderinactivitytimeout=30 seconds" (but with 1 minute of timeout)<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I feel we are ready for cutting 0.19.0,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I would like to see an official docker image, but we can make it for 0.19.1<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">thoughts ?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Enrico<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Il giorno lun 10 ago 2020 alle ore 15:28 Enrico Olivelli <<a href="mailto:eolivelli@gmail.com" target="_blank">eolivelli@gmail.com</a>> ha scritto:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi all,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I have created a PR for Diskless Cluster Mode v2<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="https://github.com/diennea/herddb/pull/676" target="_blank">https://github.com/diennea/herddb/pull/676</a><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">See the description for the details.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">This change introduces the ability to set '*' as 'replicas' for a tablespace, meaning that every node is automatically a good replica for the tablespace.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">This makes sense in Diskless Cluster Mode v2 because in that mode only one node works, the leader, and followers are stand-by only and do not store additional data.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">As a follow up I would like to work in two directions:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">- make the cluster mode: 'traditional' vs 'diskless' configurable per-tablespace and not per cluster, I would call it 'storageMode: file vs bookkeeper'<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">- create default tablespace 'herd' with replica = '*', storageMode: bookkeeper and maxleaderinactivitytimeout=30 seconds<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">with these two features the tablespace 'herd' will be always available, and this will ease working in an HerdDB cluster, because by default all of the queries, event the ones about
metadata (systablespaces, sysnodes.....) are by default routed to the server for 'herd' tablespace.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">An alternative would be to add a new virtualtablespace, like 'metadata' that cannot contain tables and that it is assigned to every node (replica=*, maxleaderinactivitytimeout=30
seconds)<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I would like to get this stuff in for 0.19.0, as I am preparing for the ApacheCon talk, and we need to be more userfriendly<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thoughts ?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Enrico<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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