mariadb/storage/ndb/include/mgmapi/mgmapi_debug.h

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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef MGMAPI_DEBUG_H
#define MGMAPI_DEBUG_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* Start signal logging.
*
* @param handle the NDB management handle.
* @param nodeId the node Id.
* @param reply the reply message.
* @return 0 if successful.
*/
int ndb_mgm_start_signallog(NdbMgmHandle handle,
int nodeId,
struct ndb_mgm_reply* reply);
/**
* Stop signal logging.
*
* @param handle the NDB management handle.
* @param nodeId the node Id.
* @param reply the reply message.
* @return 0 if successful.
*/
int ndb_mgm_stop_signallog(NdbMgmHandle handle,
int nodeId,
struct ndb_mgm_reply* reply);
/**
* Set the signals to log.
*
* @param handle the NDB management handle.
* @param nodeId the node id.
* @param mode the signal log mode.
* @param blockNames the block names (space separated).
* @param reply the reply message.
* @return 0 if successful or an error code.
*/
int ndb_mgm_log_signals(NdbMgmHandle handle,
int nodeId,
enum ndb_mgm_signal_log_mode mode,
const char* blockNames,
struct ndb_mgm_reply* reply);
/**
* Set trace.
*
* @param handle the NDB management handle.
* @param nodeId the node id.
* @param traceNumber the trace number.
* @param reply the reply message.
* @return 0 if successful or an error code.
*/
int ndb_mgm_set_trace(NdbMgmHandle handle,
int nodeId,
int traceNumber,
struct ndb_mgm_reply* reply);
/**
* Provoke an error.
*
* @param handle the NDB management handle.
* @param nodeId the node id.
* @param errrorCode the errorCode.
* @param reply the reply message.
* @return 0 if successful or an error code.
*/
int ndb_mgm_insert_error(NdbMgmHandle handle,
int nodeId,
int errorCode,
struct ndb_mgm_reply* reply);
/**
* Dump state
*
* @param handle the NDB management handle.
* @param nodeId the node id.
* @param args integer array
* @param number of args in int array
* @param reply the reply message.
* @return 0 if successful or an error code.
*/
int ndb_mgm_dump_state(NdbMgmHandle handle,
int nodeId,
const int * args,
int num_args,
struct ndb_mgm_reply* reply);
/**
*
* @param handle the NDB management handle.
* @param nodeId the node id. 0 = all db nodes
* @param errrorCode the errorCode.
* @param reply the reply message.
* @return 0 if successful or an error code.
*/
int ndb_mgm_set_int_parameter(NdbMgmHandle handle,
int node,
int param,
unsigned value,
struct ndb_mgm_reply* reply);
int ndb_mgm_set_int64_parameter(NdbMgmHandle handle,
int node,
int param,
unsigned long long value,
struct ndb_mgm_reply* reply);
int ndb_mgm_set_string_parameter(NdbMgmHandle handle,
int node,
int param,
const char * value,
struct ndb_mgm_reply* reply);
BUG#21154 The management server consumes too much CPU BUG#13987 Cluster: Loss of data nodes can cause high CPU usage from ndb_mgmd fix the actual problem (getting incomplete line of data), introduced with previous improvement. also add list sessions, get session and get session id to mgmapi to allow the implementation of a test case for this exact problem. ndb/include/mgmapi/mgmapi.h: Add internal ndb_mgm_get_fd for use in test case ndb/include/mgmapi/mgmapi_debug.h: Add internal get_session_id and get_session ndb/include/util/InputStream.hpp: - fix warning when building with gcc 4 - add mutex to be UNLOCKED when blocking (e.g. select(2)) - this means we can list sessions in a threadsafe way - add this weird startover member to SocketInputStream - this helps work out if we've read a newline yet and should start inserting into buffer from the start ndb/include/util/Parser.hpp: add mutex to context to pass down to SocketInputStream ndb/include/util/socket_io.h: readln_socket accepts mutex to UNLOCK around select(2) ndb/src/common/util/InputStream.cpp: remove evil, add more. As ndb/src/common/util/Parser.cpp: set mutex for passing down to InputStream to unlock on select(2). change way detecting of NoLine ndb/src/common/util/socket_io.cpp: unlock a mutex around select so that we can nicely do thread safe listing of sessions. Always retrieve data from the OS so that we instantly get EOF on disconnect and don't end up spinning looking for a newline. ndb/src/mgmapi/mgmapi.cpp: add internal ndb_mgm_get_fd() for internal testing internal/debug: ndb_mgm_get_session_id ndb_mgm_get_session ndb/src/mgmsrv/Services.cpp: Add list sessions, get session id and get session. introduce a session mutex ndb/src/mgmsrv/Services.hpp: Add list and get session. Add session_id to MgmApiSession. ndb/test/ndbapi/testMgm.cpp: Add test for MgmApiSession disconnection (mgmd at 100%)
2006-10-04 02:38:31 +10:00
Uint64 ndb_mgm_get_session_id(NdbMgmHandle handle);
struct NdbMgmSession {
Uint64 id;
Uint32 m_stopSelf;
Uint32 m_stop;
Uint32 nodeid;
Uint32 parser_buffer_len;
Uint32 parser_status;
};
int ndb_mgm_get_session(NdbMgmHandle handle, Uint64 id,
struct NdbMgmSession *s, int *len);
#ifdef __cplusplus
}
#endif
#endif