Write command error field errmsg concatenation broken

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    • Type: Bug
    • Resolution: Won't Fix
    • Priority: Major - P3
    • None
    • Affects Version/s: 2.5.4
    • Component/s: Sharding
    • ALL
    • Hide 
      //
// Start a shard
var s = new ShardingTest("count1", 2, 1);
var db = s.getDB("test");
var collectionName = "batch_write_protocol";
var coll = db.getCollection(collectionName);

jsTest.log("Starting sharded write command tests...");

var request;
var result;

// Create unique index
coll.remove();
coll.dropIndexes();
coll.ensureIndex({a : 1}, {unique : true});

//
// Multiple docurments insert with errors, w:1 write concern specified, ordered:false
request = {insert : collectionName
	, documents: [{a:1}, {a:1}, {a:2}, {a:1}, {a:1}]
	, writeConcern:{w:1}
	, ordered:false};
result = coll.runCommand(request)
jsTest.log(JSON.stringify(result, null, 2))
      Show
      // // Start a shard var s = new ShardingTest( "count1" , 2, 1); var db = s.getDB( "test" ); var collectionName = "batch_write_protocol" ; var coll = db.getCollection(collectionName); jsTest.log( "Starting sharded write command tests..." ); var request; var result; // Create unique index coll.remove(); coll.dropIndexes(); coll.ensureIndex({a : 1}, {unique : true }); // // Multiple docurments insert with errors, w:1 write concern specified, ordered: false request = {insert : collectionName , documents: [{a:1}, {a:1}, {a:2}, {a:1}, {a:1}] , writeConcern:{w:1} , ordered: false }; result = coll.runCommand(request) jsTest.log(JSON.stringify(result, null , 2))
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    • 3
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      All the errmsg's in the errDetails arrays are concatenated together into the top level errmsg. This will cause a quicker return message overflow size in the case where a write command overflows the 16MB return message.

      {
  "ok": 0,
  "errCode": 65,
  "errmsg": "multiple errors in batch : E11000 duplicate key error index: test.batch_write_protocol.$a_1  dup key: { : 1.0 } :: and :: E11000 duplicate key error index: test.batch_write_protocol.$a_1  dup key: { : 1.0 } :: and :: E11000 duplicate key error index: test.batch_write_protocol.$a_1  dup key: { : 1.0 }",
  "n": 2,
  "errDetails": [
    {
      "index": 1,
      "errCode": 11000,
      "errmsg": "E11000 duplicate key error index: test.batch_write_protocol.$a_1  dup key: { : 1.0 }"
    },
    {
      "index": 3,
      "errCode": 11000,
      "errmsg": "E11000 duplicate key error index: test.batch_write_protocol.$a_1  dup key: { : 1.0 }"
    },
    {
      "index": 4,
      "errCode": 11000,
      "errmsg": "E11000 duplicate key error index: test.batch_write_protocol.$a_1  dup key: { : 1.0 }"
    }
  ]
}

            Assignee:
            Greg Studer (Inactive)
            Reporter:
            Christian Amor Kvalheim
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            Watchers:
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              Created:
              Updated:
              Resolved: