Delayed commit patch. Allows documents to be saved immediately but fully committed asynchronously. On by default, to fully commit documents synchronously, use X-Couch-Full-Commit=true in the http header. We still needs to prevent committing view indexes ahead of data and to detect when a server has crashed causing potentially lost updates during remote replication (fixed by retrying the incremental replication).

git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@731452 13f79535-47bb-0310-9956-ffa450edef68

2 files changed, 14 insertions, 1 deletions

diff --git a/share/www/script/couch.js b/share/www/script/couch.js
index 505d653f..e1806d6f 100644
--- a/share/www/script/couch.js
+++ b/share/www/script/couch.js
@@ -108,6 +108,12 @@ function CouchDB(name, httpHeaders) {
     }
     return result;
   }
+  
+  this.ensureFullCommit = function() {
+    this.last_req = this.request("POST", this.uri + "_ensure_full_commit");
+    CouchDB.maybeThrowError(this.last_req);
+    return JSON.parse(this.last_req.responseText);
+  }
 
   // Applies the map function to the contents of database and returns the results.
   this.query = function(mapFun, reduceFun, options, keys) {
diff --git a/share/www/script/couch_tests.js b/share/www/script/couch_tests.js
index f553435e..dbc70325 100644
--- a/share/www/script/couch_tests.js
+++ b/share/www/script/couch_tests.js
@@ -130,7 +130,11 @@ var tests = {
     T(db.open(existingDoc._id, {rev: existingDoc._rev}) != null);
     
     // make sure restart works
+    T(db.ensureFullCommit().ok);
     restartServer();
+    
+    // make sure we can still open
+    T(db.open(existingDoc._id, {rev: existingDoc._rev}) != null);
   },
   all_docs: function(debug) {
     var db = new CouchDB("test_suite_db");
@@ -1173,6 +1177,7 @@ var tests = {
       }
       T(db.view("test/no_docs").total_rows == 0)
       T(db.view("test/single_doc").total_rows == 1)
+      T(db.ensureFullCommit().ok);
       restartServer();
     };
     
@@ -1214,7 +1219,8 @@ var tests = {
     T(db.deleteDoc(designDoc).ok);
     T(db.open(designDoc._id) == null);
     T(db.view("test/no_docs") == null);
-
+    
+    T(db.ensureFullCommit().ok);
     restartServer();
     T(db.open(designDoc._id) == null);
     T(db.view("test/no_docs") == null);
@@ -2327,6 +2333,7 @@ var tests = {
     // compaction isn't instantaneous, loop until done
     while (db.info().compact_running) {};
     
+    T(db.ensureFullCommit().ok);
     restartServer();
     var xhr = CouchDB.request("GET", "/test_suite_db/bin_doc/foo.txt");
     T(xhr.responseText == "This is a base64 encoded text")