| Index: src/Status.h |
| diff --git a/src/Status.h b/src/Status.h |
| index 45c22cb8fd09a47ca85d3da19de001535892dbdb..4d60e0e48188966615660536c7d483ba8912566c 100644 |
| --- a/src/Status.h |
| +++ b/src/Status.h |
| @@ -72,15 +72,22 @@ typedef enum Status { |
| STATUS_BACKUP_SEGMENT_OVERFLOW = 14, |
| STATUS_BACKUP_MALFORMED_SEGMENT = 15, |
| STATUS_SEGMENT_RECOVERY_FAILED = 16, |
| + |
| + /// Indicates that a server is not prepared to handle a request at |
| + /// the present time; the caller should retry at a later time. This |
| + /// status can be returned under many different situations, such as |
| + /// (a) the server is out of resources to execute the request, or |
| + /// (b) the server is not sure it actually has authority to execute |
| + /// the request, and is checking with the coordinator. |
| STATUS_RETRY = 17, |
| STATUS_SERVICE_NOT_AVAILABLE = 18, |
| STATUS_TIMEOUT = 19, |
| - // Indicates that a particular server either never existed, has come |
| - // and gone, or is currently in crashed state. The server is not in a |
| - // position to respond to RPCs and probably never will be again (unless |
| - // the id hasn't yet existed; once a server crashes its id will never |
| - // be reused). |
| + /// Indicates that server to which an RPC is directed either never existed, |
| + /// has come and gone, or is currently in crashed state. The server is not |
| + /// in a position to respond to RPCs and probably never will be again |
| + /// (unless the id hasn't yet existed; once a server crashes its id will |
| + /// never be reused). |
| STATUS_SERVER_NOT_UP = 20, |
| STATUS_INTERNAL_ERROR = 21, |
| @@ -96,7 +103,15 @@ typedef enum Status { |
| /// Indicates that an RPC was intended for a particular server id, but |
| /// was actually sent to a different server id. |
| STATUS_WRONG_SERVER = 25, |
| - STATUS_MAX_VALUE = 25, |
| + /// Indicates that the server sending an RPC is not present in the |
| + /// server list of the RPC recipient. Used to help servers discover |
| + /// that they are zombies (the rest of the cluster thinks a zombie |
| + /// is dead, but the zombie thinks it's still alive), so they don't |
| + /// continue servicing requests when other servers have already |
| + /// taken over their tablets. |
| + STATUS_CALLER_NOT_IN_CLUSTER = 26, |
| + |
| + STATUS_MAX_VALUE = 26, |
| // Note: if you add a new status value you must make the following |
| // additional updates: |
| // * Modify STATUS_MAX_VALUE to have a value equal to the largest |
