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  1. Java Driver
  2. JAVA-848

"can't find a master" exception even with secondary readPref on a command

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    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 2.10.1
    • Component/s: Cluster Management
    • Labels:
      None

      I have 1 secondary up and running.
      Running following code:

                  try {
                CommandResult res = db.command(new BasicDBObject("isMaster", 1), 0, ReadPreference.secondaryPreferred());
            } catch (Exception e) {
                getLogger().log(Level.INFO, e.getMessage(), e);
            }

      This errors with following:

      INFO: can't find a master
com.mongodb.MongoException: can't find a master
	at com.mongodb.DBTCPConnector.checkMaster(DBTCPConnector.java:503)
	at com.mongodb.DBTCPConnector.innerCall(DBTCPConnector.java:236)
	at com.mongodb.DBTCPConnector.call(DBTCPConnector.java:216)
	at com.mongodb.DBApiLayer$MyCollection.__find(DBApiLayer.java:288)
	at com.mongodb.DB.command(DB.java:261)
	at com.mongodb.DB.command(DB.java:243)

      It also fails with:

      • ReadPreference.primaryPreferred()
      • ReadPreference.secondaryPreferred()

      But it works fine using slaveOk:

      CommandResult res = node.getServerDB().command(new BasicDBObject("isMaster", 1), Bytes.QUERYOPTION_SLAVEOK);

            Assignee:
            Unassigned Unassigned
            Reporter:
            antoine Antoine Girbal
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              Created:
              Updated:
              Resolved: