# Upgrade introducing new nodes **URL:** \ **Category:** Elasticsearch\ **Created:** [January 12, 2015, 1:58am UTC](https://discuss.elastic.co/t/upgrade-introducing-new-nodes/21576 "2015-01-12T01:58:09Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Krzysztof\_Madejski](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/krzysztof_madejski/32/998_2.png) [@Krzysztof\_Madejski](https://discuss.elastic.co/u/Krzysztof_Madejski)\ **Post date:** [January 12, 2015, 1:58am UTC](https://discuss.elastic.co/t/upgrade-introducing-new-nodes/21576/1 "2015-01-12T01:58:09Z")
Hi, Could you please check if my upgrade scenario given below will work properly? I have three nodes in cluster (ES 1.3, no replication) and I want to upgrade it to ES 1.4. I wonder can I do the following: 1. Create three new nodes running ES 1.4 2. Add them to cluster 3. Configure replication "number\_of\_replicas": 1 4)Make sure replicas goes to new nodes by invoking curl -XPOST -d '{ "commands" : [ { "allocate" ... etc. 4. When all repicas are moved, enable one of new servers as master 5. Disable the old master 6. Stop old servers Will this scenario work? Would it be the same to create snapshot and restore it on new servers as new cluster? The main point of why I'm not following official guide is: I want to be able to come back quickly to previous configuration. Chris -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [January 12, 2015, 2:51am UTC](https://discuss.elastic.co/t/upgrade-introducing-new-nodes/21576/2 "2015-01-12T02:51:45Z")
Yes but once you move a shard to a newer node then (usually) you can't shift it back. This is due to changes in the underlying lucene segment. You'll also need to make sure you have the same Java versions on all nodes it you'll see problems. But yes, snapshot and restore would be a better way to do this as you maintain your previous state completely segregated. On 12/01/2015 2:58 pm, "Krzysztof Madejski" [krzysztof.madejski@epf.org.pl](mailto:krzysztof.madejski@epf.org.pl) wrote: > Hi, > > Could you please check if my upgrade scenario given below will work > properly? I have three nodes in cluster (ES 1.3, no replication) and I want > to upgrade it to ES 1.4. > > I wonder can I do the following: > > 1. Create three new nodes running ES 1.4 > 2. Add them to cluster > 3. Configure replication "number\_of\_replicas": 1 > 4)Make sure replicas goes to new nodes by invoking curl -XPOST -d '{ > "commands" : [ { "allocate" ... etc. > 4. When all repicas are moved, enable one of new servers as master > 5. Disable the old master > 6. Stop old servers > > Will this scenario work? Would it be the same to create snapshot and > restore it on new servers as new cluster? > > The main point of why I'm not following official guide is: I want to be > able to come back quickly to previous configuration. > > Chris > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9yqCgJueGOTi3KfZT5U00PuLMJHn-c\_7DNuGAfNtfSFg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9yqCgJueGOTi3KfZT5U00PuLMJHn-c_7DNuGAfNtfSFg%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Krzysztof\_Madejski](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/krzysztof_madejski/32/998_2.png) [@Krzysztof\_Madejski](https://discuss.elastic.co/u/Krzysztof_Madejski)\ **Post date:** [January 12, 2015, 11:14am UTC](https://discuss.elastic.co/t/upgrade-introducing-new-nodes/21576/3 "2015-01-12T11:14:40Z")
Thank you Mark for help! I guess I'll go with replication as it doesn't require to stop indexing new documents (and while my index is quite big it can take some time). Chris On Mon, Jan 12, 2015 at 3:51 AM, Mark Walkom [markwalkom@gmail.com](mailto:markwalkom@gmail.com) wrote: > Yes but once you move a shard to a newer node then (usually) you can't > shift it back. This is due to changes in the underlying lucene segment. > > You'll also need to make sure you have the same Java versions on all nodes > it you'll see problems. > > But yes, snapshot and restore would be a better way to do this as you > maintain your previous state completely segregated. > On 12/01/2015 2:58 pm, "Krzysztof Madejski" \< > krzysztof.madejski@epf.org.pl\> wrote: > > > Hi, > > > > Could you please check if my upgrade scenario given below will work > > properly? I have three nodes in cluster (ES 1.3, no replication) and I want > > to upgrade it to ES 1.4. > > > > I wonder can I do the following: > > > > 1. Create three new nodes running ES 1.4 > > 2. Add them to cluster > > 3. Configure replication "number\_of\_replicas": 1 > > 4)Make sure replicas goes to new nodes by invoking curl -XPOST -d '{ > > "commands" : [ { "allocate" ... etc. > > 4. When all repicas are moved, enable one of new servers as master > > 5. Disable the old master > > 6. Stop old servers > > > > Will this scenario work? Would it be the same to create snapshot and > > restore it on new servers as new cluster? > > > > The main point of why I'm not following official guide is: I want to be > > able to come back quickly to previous configuration. > > > > Chris > > > > -- > > You received this message because you are subscribed to the Google Groups > > "elasticsearch" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com) > > [https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/ee26c9da-187f-402c-b5b6-b2e8bdbc2699%40googlegroups.com?utm_medium=email&utm_source=footer) > > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). > > -- > You received this message because you are subscribed to a topic in the > Google Groups "elasticsearch" group. > To unsubscribe from this topic, visit > [https://groups.google.com/d/topic/elasticsearch/\_hHPmrqNXEo/unsubscribe](https://groups.google.com/d/topic/elasticsearch/_hHPmrqNXEo/unsubscribe). > To unsubscribe from this group and all its topics, send an email to > [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9yqCgJueGOTi3KfZT5U00PuLMJHn-c\_7DNuGAfNtfSFg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9yqCgJueGOTi3KfZT5U00PuLMJHn-c_7DNuGAfNtfSFg%40mail.gmail.com) > [https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9yqCgJueGOTi3KfZT5U00PuLMJHn-c\_7DNuGAfNtfSFg%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9yqCgJueGOTi3KfZT5U00PuLMJHn-c_7DNuGAfNtfSFg%40mail.gmail.com?utm_medium=email&utm_source=footer) > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- Krzysztof Madejski Koordynator Koduj Dla Polski, Fundacja ePaństwo Code for Poland program manager, ePF Foundation > **[premium.pl - międzynarodowa giełda domen](http://forum.kodujdlapolski.pl)** > > Największa polska giełda domen internetowych. Najniższe ceny przedłużenia. Nie zastanawiaj się - przenieś do nas domeny już dziś! krzysztof.madejski@epf.org.pl +48 664 082 823 -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAHd0-5eDvL%3DRoEfhoiuxMq0ovc4Z-eNVq9dLmAtdnJF%3DBYp\_nw%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAHd0-5eDvL%3DRoEfhoiuxMq0ovc4Z-eNVq9dLmAtdnJF%3DBYp_nw%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 12:39am UTC](https://discuss.elastic.co/t/upgrade-introducing-new-nodes/21576/4 "2017-07-06T00:39:34Z")
Closed on July 6, 2017, 12:39am UTC