UnknownError can be returned on PlanExecutor::DEAD in find/getMore

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    • Type: Bug
    • Resolution: Won't Fix
    • Priority: Major - P3
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    • Affects Version/s: 3.0.8
    • Component/s: Querying
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      db.capped.drop();
assert.commandWorked(db.runCommand({create: "capped", capped: true, size: 4096}));

var smallPadding = new Array(500).join("x");
assert.writeOK(db.capped.insert({x: smallPadding}));
assert.writeOK(db.capped.insert({x: smallPadding}));
assert.writeOK(db.capped.insert({x: smallPadding}));
var cursor = db.capped.find().batchSize(2);
cursor.next();
cursor.next();

var largePadding = new Array(2000).join("y");
assert.writeOK(db.capped.insert({x: largePadding}));
assert.writeOK(db.capped.insert({x: largePadding}));
cursor.next();
      Output
      2016-06-14T11:12:37.810-0400 E QUERY    Error: error: {
  "$err" : "getMore executor error: UnknownError no details available",
  "code" : 17406
}
    at Error (<anonymous>)
    at DBQuery.next (src/mongo/shell/query.js:259:15)
    at (shell):1:8 at src/mongo/shell/query.js:259
      Show
      db.capped.drop(); assert.commandWorked(db.runCommand({create: "capped" , capped: true , size: 4096})); var smallPadding = new Array(500).join( "x" ); assert.writeOK(db.capped.insert({x: smallPadding})); assert.writeOK(db.capped.insert({x: smallPadding})); assert.writeOK(db.capped.insert({x: smallPadding})); var cursor = db.capped.find().batchSize(2); cursor.next(); cursor.next(); var largePadding = new Array(2000).join( "y" ); assert.writeOK(db.capped.insert({x: largePadding})); assert.writeOK(db.capped.insert({x: largePadding})); cursor.next(); Output 2016-06-14T11:12:37.810-0400 E QUERY Error: error: { "$err" : "getMore executor error: UnknownError no details available", "code" : 17406 } at Error (<anonymous>) at DBQuery.next (src/mongo/shell/query.js:259:15) at (shell):1:8 at src/mongo/shell/query.js:259
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      We backported part of the PlanExecutor::DEAD changes to the 3.0 branch in order to address SERVER-20973. However, the backport missed the changes to plan_executor.cpp to set objOut as the status member object.

              Assignee:
              Unassigned
              Reporter:
              Max Hirschhorn
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                Created:
                Updated:
                Resolved: