[GitHub] nickva commented on issue #1619: Implement replicator forced session refresh

[GitBox <gi...@apache.org>]

nickva commented on issue #1619: Implement replicator forced session refresh
URL: https://github.com/apache/couchdb/pull/1619#issuecomment-423612552
 
 
   For another test besides the unit test can try this script
   
   ```
   #!/bin/bash
   
   S=localhost:15984
   SA=adm:pass@${S}
   JSON="Content-Type: application/json"
   
   curl -s -XDELETE $SA/db > /dev/null
   curl -s -XDELETE $SA/srcdb > /dev/null
   curl -s -XDELETE $SA/_replicator > /dev/null
   curl -s -XPUT $SA/db > /dev/null
   curl -s -XPUT $SA/srcdb > /dev/null
   
   echo "Setting [couch_httpd_auth] timeout = 5"
   curl -s -XPUT adm:pass@localhost:15986/_config/couch_httpd_auth/timeout -d '"5"' > /dev/null
   curl -s -XPUT adm:pass@localhost:25986/_config/couch_httpd_auth/timeout -d '"5"' > /dev/null
   curl -s -XPUT adm:pass@localhost:35986/_config/couch_httpd_auth/timeout -d '"5"' > /dev/null
   
   echo "Set session force refresh = 4"
   curl -s -XPUT adm:pass@localhost:15986/_config/replicator/session_force_refresh_interval_sec -d '"4"' > /dev/null
   curl -s -XPUT adm:pass@localhost:25986/_config/replicator/session_force_refresh_interval_sec -d '"4"' > /dev/null
   curl -s -XPUT adm:pass@localhost:35986/_config/replicator/session_force_refresh_interval_sec -d '"4"' > /dev/null
   
   echo "Adding VDU to target"
   cat <<EOF > /tmp/vdu.json
     {
       "_id": "_design/vdu",
       "validate_doc_update":"function(newDoc, oldDoc, userCtx) { log(userCtx); if (newDoc.name != userCtx.name) { throw({'forbidden': 'VDU failed'}); } }"
     }
   EOF
   curl -s -XPUT $SA/db/_design/vdu -H "$JSON" -T /tmp/vdu.json > /dev/null
   
   echo "Replicating from srcdb to db"
   curl -s XDELETE $SA/_replicate -H "$JSON" -d '{"source":"http://adm:pass@localhost:15984/srcdb", "target":"http://adm:pass@localhost:15984/db", "worker_proceses":1, "continuous":true}' > /dev/null
   curl -s XPOST   $SA/_replicate -H "$JSON" -d '{"source":"http://adm:pass@localhost:15984/srcdb", "target":"http://adm:pass@localhost:15984/db", "worker_proceses":1, "continuous":true}' > /dev/null
   
   sleep 3
   
   DOCID=0
   
   echo "With frequent enough updates, session is getting refreshed"
   while [ $DOCID -lt 2 ]; do
       let DOCID++
       echo ""
       echo "DocID: $DOCID"
       curl -s -XPUT $SA/srcdb/$DOCID -H "$JSON" -d '{"name":"adm"}' > /dev/null
       echo "Doc added to source, sleeping 2 seconds"
       sleep 2
       echo "Getting doc from target:"
       curl $SA/db/$DOCID
   done
   
   echo "Now trying with longer sleeps"
   sleep 10
   
   while [ $DOCID -lt 10 ]; do
       let DOCID++
       echo ""
       echo "DocID: $DOCID"
       curl -s -XPUT $SA/srcdb/$DOCID -H "$JSON" -d '{"name":"adm"}' > /dev/null
       echo "Doc added to source, sleeping 7 seconds"
       sleep 7
       echo "Getting doc from target:"
       curl $SA/db/$DOCID
   done
   ```
   
   Comment the part where the force refresh setting is set to 4 seconds and docs 5,6,7... etc should fail with 
   ```
   DocID: 5
   Doc added to source, sleeping 7 seconds
   Getting doc from target:
   {"error":"not_found","reason":"missing"}
   
   DocID: 6
   Doc added to source, sleeping 7 seconds
   Getting doc from target:
   {"error":"not_found","reason":"missing"}
   ```
   
   Uncomment the setting and they should be replicating
   
   ```
   
   DocID: 5
   Doc added to source, sleeping 7 seconds
   Getting doc from target:
   {"_id":"5","_rev":"1-66e95cbbe626e928747ecc225341b2d6","name":"adm"}
   
   DocID: 6
   Doc added to source, sleeping 7 seconds
   Getting doc from target:
   {"_id":"6","_rev":"1-66e95cbbe626e928747ecc225341b2d6","name":"adm"}
   
   DocID: 7
   Doc added to source, sleeping 7 seconds
   Getting doc from target:
   {"_id":"7","_rev":"1-66e95cbbe626e928747ecc225341b2d6","name":"adm"}
   ```
   

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