Find and (safely) kill long running MongoDB ops

findLongRunningOp.js

db.currentOp().inprog.forEach(
  function(op) {
    if(op.secs_running > 5) printjson(op);
  }
)

killLongRunningOps.js

// kills long running ops in MongoDB (taking seconds as an arg to define "long")
// attempts to be a bit safer than killing all by excluding replication related operations
// and only targeting queries as opposed to commands etc.
 
killLongRunningOps = function(maxSecsRunning) {
    currOp = db.currentOp();
    for (oper in currOp.inprog) {
        op = currOp.inprog[oper-0];
        if (op.secs_running > maxSecsRunning && op.op == "query" && !op.ns.startsWith("local")) {
            print("Killing opId: " + op.opid
                    + " running for over secs: "
                    + op.secs_running);
            db.killOp(op.opid);
        }
    }
};

//example: killLongRunningOps(5)

Thanks for this, i ended up using a modified version:

db.currentOp().inprog.forEach(                                                                                         
  function(op) {                                                                                                       
      if(op.secs_running > 5 )                                                                                        
                  print("host: " + op.host                                                                             
                    + " secs_running: " + op.secs_running                                                              
                    + " op: " + op.op                                                                                  
                    + " ns: " + op.ns                                                                                  
                    + " command: " + JSON.stringify(op.command)                                                        
                 );                                                                                                    
  }                                                                                                                    
);