| // Copyright 2014 Cloudera, Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package kudu.server; |
| |
| option java_package = "org.kududb.server"; |
| |
| import "kudu/common/common.proto"; |
| import "kudu/common/wire_protocol.proto"; |
| import "kudu/util/version_info.proto"; |
| |
| // The status information dumped by a server after it starts. |
| // |
| // This is optionally exposed on the local host in a text file which the server writes out |
| // at startup. |
| // |
| // Additionally, it is exposed via RPC through the GenericService interface. |
| message ServerStatusPB { |
| required NodeInstancePB node_instance = 1; |
| repeated HostPortPB bound_rpc_addresses = 2; |
| repeated HostPortPB bound_http_addresses = 3; |
| optional VersionInfoPB version_info = 4; |
| } |
| |
| // Attempt to set a command line flag. |
| // Note that many command line flags do not take effect if changed |
| // at runtime. |
| // |
| // TODO: We plan to add tags indicating which flags can be modified at |
| // runtime. For now, this is an advanced option. |
| message SetFlagRequestPB { |
| required string flag = 1; |
| required string value = 2; |
| |
| // Force the change, even if the flag is not marked as safe to change |
| // at runtime. This can cause crashes or other bad behavior, so should |
| // only be used as a last resort. |
| optional bool force = 3 [default = false]; |
| } |
| |
| message SetFlagResponsePB { |
| enum Code { |
| UNKNOWN = 0; |
| SUCCESS = 1; |
| NO_SUCH_FLAG = 2; |
| BAD_VALUE = 3; |
| |
| // The flag is not safe to change at runtime without the 'force' flag. |
| NOT_SAFE = 4; |
| } |
| |
| required Code result = 1; |
| |
| // A string describing the new value that the option has been set to. |
| // This passes through the return value of SetCommandLineOption() from |
| // gflags, which doesn't specify anything about the format of this message. |
| // |
| // Using 'result' above is more reliable. |
| optional string msg = 2; |
| |
| // If the flag exists, the prior value of the flag. This is set even in the |
| // case of BAD_VALUE. |
| optional string old_value = 3; |
| } |
| |
| // Attempt to flush coverage information to disk, if running a coverage build. |
| message FlushCoverageRequestPB { |
| } |
| message FlushCoverageResponsePB { |
| // If the current build is not a coverage build, returns false. |
| optional bool success = 1; |
| } |
| |
| // Requests the server's current timestamp. |
| message ServerClockRequestPB { |
| } |
| message ServerClockResponsePB { |
| // The current timestamp of the server. |
| optional fixed64 timestamp = 1; |
| } |
| |
| // Requests the server's status and version info |
| message GetStatusRequestPB { |
| } |
| message GetStatusResponsePB { |
| required ServerStatusPB status = 1; |
| } |
| |
| service GenericService { |
| rpc SetFlag(SetFlagRequestPB) |
| returns (SetFlagResponsePB); |
| |
| rpc FlushCoverage(FlushCoverageRequestPB) |
| returns (FlushCoverageResponsePB); |
| |
| rpc ServerClock(ServerClockRequestPB) |
| returns (ServerClockResponsePB); |
| |
| rpc GetStatus(GetStatusRequestPB) |
| returns (GetStatusResponsePB); |
| } |