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authorMicah Anderson <micah@riseup.net>2016-05-03 10:47:31 -0400
committerMicah Anderson <micah@riseup.net>2016-05-03 10:47:31 -0400
commitd7e66ae46aac640a6699e6849a32053effcd0dd0 (patch)
treeba62f7bc1c3c6969ba07e3c92f8e1f665db5c1f5 /pages/docs/platform/common
parent3735362d0b55d124a793f7aa63c2966ca456b5cc (diff)
Fix upgrading docs by splitting up the included partials
Diffstat (limited to 'pages/docs/platform/common')
-rw-r--r--pages/docs/platform/common/bigcouch_migration_begin.md67
-rw-r--r--pages/docs/platform/common/bigcouch_migration_end.md26
-rw-r--r--pages/docs/platform/common/bigcouch_migration_finish.md10
3 files changed, 103 insertions, 0 deletions
diff --git a/pages/docs/platform/common/bigcouch_migration_begin.md b/pages/docs/platform/common/bigcouch_migration_begin.md
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+@title = "Migrating from BigCouch to plain CouchDB"
+
+At the end of this process, you will have just *one* node with `services` property equal to `couchdb`. If you had a BigCouch cluster before, you will be removing all but one of those machines to consolidate them into one CouchDB machine.
+
+1. if you have multiple nodes with the `couchdb` service on them, pick one of them to be your CouchDB server, and remove the service from the others. If these machines were only doing BigCouch before, you can remove the nodes completely with `leap node rm <nodename>` and then you can decommission the servers
+
+1. put the webapp into [[maintenance mode => webapp#maintenance-mode]]
+
+1. turn off daemons that access the database. For example:
+
+ ```
+ workstation$ leap ssh <each soledad-node>
+ server# /etc/init.d/soledad-server stop
+
+ workstation$ leap ssh <mx-node>
+ server# /etc/init.d/postfix stop
+ server# /etc/init.d/leap-mx stop
+
+ workstation$ leap ssh <webapp-node>
+ server# /etc/init.d/nickserver stop
+ ```
+
+ Alternately, you can create a temporary firewall rule to block access (run on couchdb server):
+
+ ```
+ server# iptables -A INPUT -p tcp --dport 5984 --jump REJECT
+ ```
+
+1. remove orphaned databases and do a backup of all remaining, active databases. This can take some time and will place several hundred megabytes of data into /var/backups/couchdb. The size and time depends on how many users there are on your system. For example, 15k users took approximately 25 minutes and 308M of space:
+
+ ```
+ workstation$ leap ssh <couchdb-node>
+ server# cd /srv/leap/couchdb/scripts
+ server# ./cleanup-user-dbs
+ server# time ./couchdb_dumpall.sh
+ ```
+
+1. stop bigcouch:
+
+ ```
+ server# /etc/init.d/bigcouch stop
+ server# pkill epmd
+ ```
+
+1. remove bigcouch:
+
+ ```
+ server# apt-get remove bigcouch
+ ```
+
+1. configure your couch node to use plain couchdb instead of bigcouch, you can do this by editing nodes/<couch-node>.json, look for this section:
+
+ ```
+ "couch": {
+ "mode": "plain"
+ }
+ ```
+
+ change it, so it looks like this instead:
+
+ ```
+ "couch": {
+ "mode": "plain",
+ "pwhash_alg": "pbkdf2"
+ }
+ ```
+
diff --git a/pages/docs/platform/common/bigcouch_migration_end.md b/pages/docs/platform/common/bigcouch_migration_end.md
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+1. restore the backup, this will take approximately the same amount of time as the backup took above:
+
+ ```
+ server# cd /srv/leap/couchdb/scripts
+ server# time ./couchdb_restoreall.sh
+ ```
+
+1. start services again that were stopped in the beginning:
+
+ ```
+ workstation$ leap ssh soledad-nodes
+ server# /etc/init.d/soledad-server start
+
+ workstation$ leap ssh mx-node
+ server# /etc/init.d/postfix start
+ server# /etc/init.d/leap-mx start
+
+ workstation$ leap ssh webapp
+ server# /etc/init.d/nickserver start
+ ```
+
+ Or, alternately, if you set up the firewall rule instead, now remove it:
+
+ ```
+ server# iptables -D INPUT -p tcp --dport 5984 --jump REJECT
+ ```
diff --git a/pages/docs/platform/common/bigcouch_migration_finish.md b/pages/docs/platform/common/bigcouch_migration_finish.md
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+
+1. check if everything is working, including running the test on your deployment machine:
+
+ ```
+ workstation$ leap test
+ ```
+
+1. Remove old bigcouch data dir `/opt` after you double checked everything is in place
+
+1. Relax, enjoy a refreshing beverage.