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Viewing changes to plugin/logging_query/logging_query.cc

  • Committer: Lee Bieber
  • Date: 2010-12-03 01:16:19 UTC
  • mfrom: (1819.9.81 update-innobase)
  • Revision ID: kalebral@gmail.com-20101203011619-n6v584rijwdet05b
Merge Stewart - update Innobase plugin based on InnoDB 1.1.2

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plugin/logging_query/logging_query.cc
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2008, 2009 Sun Microsystems, Inc.
 
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 *  Copyright (C) 2008,2009 Sun Microsystems
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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#define ESCAPE_CHAR      '\\'
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#define SEPARATOR_CHAR   ','
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44
 
namespace drizzle_plugin
45
 
{
46
 
 
47
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static bool sysvar_logging_query_enable= false;
 
45
static char* sysvar_logging_query_filename= NULL;
 
46
static char* sysvar_logging_query_pcre= NULL;
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/* TODO fix these to not be unsigned long once we have sensible sys_var system */
49
 
static uint32_constraint sysvar_logging_query_threshold_slow;
50
 
static uint32_constraint sysvar_logging_query_threshold_big_resultset;
51
 
static uint32_constraint sysvar_logging_query_threshold_big_examined;
 
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static unsigned long sysvar_logging_query_threshold_slow= 0;
 
49
static unsigned long sysvar_logging_query_threshold_big_resultset= 0;
 
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static unsigned long sysvar_logging_query_threshold_big_examined= 0;
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51
 
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/* quote a string to be safe to include in a CSV line
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   that means backslash quoting all commas, doublequotes, backslashes,
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class Logging_query: public drizzled::plugin::Logging
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{
146
 
  const std::string _filename;
147
 
  const std::string _query_pcre;
148
145
  int fd;
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  pcre *re;
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  pcre_extra *pe;
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public:
156
153
 
157
 
  Logging_query(const std::string &filename,
158
 
                const std::string &query_pcre) :
159
 
    drizzled::plugin::Logging("Logging_query"),
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    _filename(filename),
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    _query_pcre(query_pcre),
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    fd(-1), re(NULL), pe(NULL),
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    formatter("%1%,%2%,%3%,\"%4%\",\"%5%\",\"%6%\",%7%,%8%,"
164
 
              "%9%,%10%,%11%,%12%,%13%,%14%,\"%15%\"\n")
 
154
  Logging_query()
 
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    : drizzled::plugin::Logging("Logging_query"),
 
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      fd(-1), re(NULL), pe(NULL),
 
157
      formatter("%1%,%2%,%3%,\"%4%\",\"%5%\",\"%6%\",%7%,%8%,"
 
158
                "%9%,%10%,%11%,%12%,%13%,%14%,\"%15%\"\n")
165
159
  {
166
160
 
167
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    /* if there is no destination filename, dont bother doing anything */
168
 
    if (_filename.empty())
 
162
    if (sysvar_logging_query_filename == NULL)
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      return;
170
164
 
171
 
    fd= open(_filename.c_str(),
 
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    fd= open(sysvar_logging_query_filename,
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             O_WRONLY | O_APPEND | O_CREAT,
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             S_IRUSR|S_IWUSR);
174
 
 
175
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    if (fd < 0)
176
169
    {
177
 
      sql_perror( _("fail open()"), _filename);
 
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      char errmsg[STRERROR_MAX];
 
171
      strerror_r(errno, errmsg, sizeof(errmsg));
 
172
      errmsg_printf(ERRMSG_LVL_ERROR, _("fail open() fn=%s er=%s\n"),
 
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                    sysvar_logging_query_filename,
 
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                    errmsg);
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      return;
179
176
    }
180
177
 
181
 
    if (not _query_pcre.empty())
 
178
    if (sysvar_logging_query_pcre != NULL)
182
179
    {
183
180
      const char *this_pcre_error;
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181
      int this_pcre_erroffset;
185
 
      re= pcre_compile(_query_pcre.c_str(), 0, &this_pcre_error,
 
182
      re= pcre_compile(sysvar_logging_query_pcre, 0, &this_pcre_error,
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                       &this_pcre_erroffset, NULL);
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      pe= pcre_study(re, 0, &this_pcre_error);
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      /* TODO emit error messages if there is a problem */
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    // return if not enabled or query was too fast or resultset was too small
227
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    if (sysvar_logging_query_enable == false)
228
225
      return false;
229
 
    if (session->sent_row_count < sysvar_logging_query_threshold_big_resultset.get())
230
 
      return false;
231
 
    if (session->examined_row_count < sysvar_logging_query_threshold_big_examined.get())
232
 
      return false;
233
 
 
234
 
    /*
235
 
      TODO, the session object should have a "utime command completed"
236
 
      inside itself, so be more accurate, and so this doesnt have to
237
 
      keep calling current_utime, which can be slow.
238
 
    */
239
 
    uint64_t t_mark= session->getCurrentTimestamp(false);
240
 
 
241
 
    if (session->getElapsedTime() < (sysvar_logging_query_threshold_slow.get()))
 
226
    if (session->sent_row_count < sysvar_logging_query_threshold_big_resultset)
 
227
      return false;
 
228
    if (session->examined_row_count < sysvar_logging_query_threshold_big_examined)
 
229
      return false;
 
230
 
 
231
    /* TODO, the session object should have a "utime command completed"
 
232
       inside itself, so be more accurate, and so this doesnt have to
 
233
       keep calling current_utime, which can be slow */
 
234
  
 
235
    boost::posix_time::ptime mytime(boost::posix_time::microsec_clock::local_time());
 
236
    boost::posix_time::ptime epoch(boost::gregorian::date(1970,1,1));
 
237
    uint64_t t_mark= (mytime-epoch).total_microseconds();
 
238
 
 
239
    if ((t_mark - session->start_utime) < (sysvar_logging_query_threshold_slow))
242
240
      return false;
243
241
 
244
242
    Session::QueryString query_string(session->getQueryString());
260
258
    quotify(*query_string, qs);
261
259
    
262
260
    // to avoid trying to printf %s something that is potentially NULL
263
 
    util::string::const_shared_ptr schema(session->schema());
264
 
    const char *dbs= (schema and not schema->empty()) ? schema->c_str() : "";
 
261
    const char *dbs= session->db.empty() ? "" : session->db.c_str();
265
262
 
266
263
    formatter % t_mark
267
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              % session->thread_id
268
265
              % session->getQueryId()
269
266
              % dbs
270
267
              % qs
271
 
              % getCommandName(session->command)
 
268
              % command_name[session->command].str
272
269
              % (t_mark - session->getConnectMicroseconds())
273
 
              % session->getElapsedTime()
 
270
              % (t_mark - session->start_utime)
274
271
              % (t_mark - session->utime_after_lock)
275
272
              % session->sent_row_count
276
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              % session->examined_row_count
289
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  }
290
287
};
291
288
 
 
289
static Logging_query *handler= NULL;
 
290
 
292
291
static int logging_query_plugin_init(drizzled::module::Context &context)
293
292
{
294
293
 
295
294
  const module::option_map &vm= context.getOptions();
296
 
 
297
 
  if (vm.count("filename") > 0)
298
 
  {
299
 
    context.add(new Logging_query(vm["filename"].as<string>(),
300
 
                                  vm["pcre"].as<string>()));
301
 
    context.registerVariable(new sys_var_bool_ptr("enable", &sysvar_logging_query_enable));
302
 
    context.registerVariable(new sys_var_const_string_val("filename", vm["filename"].as<string>()));
303
 
    context.registerVariable(new sys_var_const_string_val("pcre", vm["pcre"].as<string>()));
304
 
    context.registerVariable(new sys_var_constrained_value<uint32_t>("threshold_slow", sysvar_logging_query_threshold_slow));
305
 
    context.registerVariable(new sys_var_constrained_value<uint32_t>("threshold_big_resultset", sysvar_logging_query_threshold_big_resultset));
306
 
    context.registerVariable(new sys_var_constrained_value<uint32_t>("threshold_big_examined", sysvar_logging_query_threshold_big_examined));
307
 
  }
 
295
  if (vm.count("threshold-slow"))
 
296
  {
 
297
    if (sysvar_logging_query_threshold_slow > UINT32_MAX)
 
298
    {
 
299
      errmsg_printf(ERRMSG_LVL_ERROR, _("Invalid value for threshold-slow"));
 
300
      return 1;
 
301
    }
 
302
  }
 
303
 
 
304
  if (vm.count("threshold-big-resultset"))
 
305
  {
 
306
    if (sysvar_logging_query_threshold_big_resultset > UINT32_MAX)
 
307
    {
 
308
      errmsg_printf(ERRMSG_LVL_ERROR, _("Invalid value for threshold-big-resultset"));
 
309
      return 1;
 
310
    }
 
311
  }
 
312
 
 
313
  if (vm.count("threshold-big-examined"))
 
314
  {
 
315
    if (sysvar_logging_query_threshold_big_examined > UINT32_MAX)
 
316
    {
 
317
      errmsg_printf(ERRMSG_LVL_ERROR, _("Invalid value for threshold-big-examined"));
 
318
      return 1;
 
319
    }
 
320
  }
 
321
  handler= new Logging_query();
 
322
  context.add(handler);
308
323
 
309
324
  return 0;
310
325
}
313
328
{
314
329
  context("enable",
315
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          po::value<bool>(&sysvar_logging_query_enable)->default_value(false)->zero_tokens(),
316
 
          _("Enable logging to CSV file"));
317
 
  context("filename",
318
 
          po::value<string>(),
319
 
          _("File to log to"));
320
 
  context("pcre",
321
 
          po::value<string>()->default_value(""),
322
 
          _("PCRE to match the query against"));
 
331
          N_("Enable logging to CSV file"));
323
332
  context("threshold-slow",
324
 
          po::value<uint32_constraint>(&sysvar_logging_query_threshold_slow)->default_value(0),
325
 
          _("Threshold for logging slow queries, in microseconds"));
 
333
          po::value<unsigned long>(&sysvar_logging_query_threshold_slow)->default_value(0),
 
334
          N_("Threshold for logging slow queries, in microseconds"));
326
335
  context("threshold-big-resultset",
327
 
          po::value<uint32_constraint>(&sysvar_logging_query_threshold_big_resultset)->default_value(0),
328
 
          _("Threshold for logging big queries, for rows returned"));
 
336
          po::value<unsigned long>(&sysvar_logging_query_threshold_big_resultset)->default_value(0),
 
337
          N_("Threshold for logging big queries, for rows returned"));
329
338
  context("threshold-big-examined",
330
 
          po::value<uint32_constraint>(&sysvar_logging_query_threshold_big_examined)->default_value(0),
331
 
          _("Threshold for logging big queries, for rows examined"));
 
339
          po::value<unsigned long>(&sysvar_logging_query_threshold_big_examined)->default_value(0),
 
340
          N_("Threshold for logging big queries, for rows examined"));
332
341
}
333
342
 
334
 
} /* namespace drizzle_plugin */
 
343
static DRIZZLE_SYSVAR_BOOL(
 
344
  enable,
 
345
  sysvar_logging_query_enable,
 
346
  PLUGIN_VAR_NOCMDARG,
 
347
  N_("Enable logging to CSV file"),
 
348
  NULL, /* check func */
 
349
  NULL, /* update func */
 
350
  false /* default */);
 
351
 
 
352
static DRIZZLE_SYSVAR_STR(
 
353
  filename,
 
354
  sysvar_logging_query_filename,
 
355
  PLUGIN_VAR_READONLY,
 
356
  N_("File to log to"),
 
357
  NULL, /* check func */
 
358
  NULL, /* update func*/
 
359
  NULL /* default */);
 
360
 
 
361
static DRIZZLE_SYSVAR_STR(
 
362
  pcre,
 
363
  sysvar_logging_query_pcre,
 
364
  PLUGIN_VAR_READONLY,
 
365
  N_("PCRE to match the query against"),
 
366
  NULL, /* check func */
 
367
  NULL, /* update func*/
 
368
  NULL /* default */);
 
369
 
 
370
static DRIZZLE_SYSVAR_ULONG(
 
371
  threshold_slow,
 
372
  sysvar_logging_query_threshold_slow,
 
373
  PLUGIN_VAR_OPCMDARG,
 
374
  N_("Threshold for logging slow queries, in microseconds"),
 
375
  NULL, /* check func */
 
376
  NULL, /* update func */
 
377
  0, /* default */
 
378
  0, /* min */
 
379
  UINT32_MAX, /* max */
 
380
  0 /* blksiz */);
 
381
 
 
382
static DRIZZLE_SYSVAR_ULONG(
 
383
  threshold_big_resultset,
 
384
  sysvar_logging_query_threshold_big_resultset,
 
385
  PLUGIN_VAR_OPCMDARG,
 
386
  N_("Threshold for logging big queries, for rows returned"),
 
387
  NULL, /* check func */
 
388
  NULL, /* update func */
 
389
  0, /* default */
 
390
  0, /* min */
 
391
  UINT32_MAX, /* max */
 
392
  0 /* blksiz */);
 
393
 
 
394
static DRIZZLE_SYSVAR_ULONG(
 
395
  threshold_big_examined,
 
396
  sysvar_logging_query_threshold_big_examined,
 
397
  PLUGIN_VAR_OPCMDARG,
 
398
  N_("Threshold for logging big queries, for rows examined"),
 
399
  NULL, /* check func */
 
400
  NULL, /* update func */
 
401
  0, /* default */
 
402
  0, /* min */
 
403
  UINT32_MAX, /* max */
 
404
  0 /* blksiz */);
 
405
 
 
406
static drizzle_sys_var* logging_query_system_variables[]= {
 
407
  DRIZZLE_SYSVAR(enable),
 
408
  DRIZZLE_SYSVAR(filename),
 
409
  DRIZZLE_SYSVAR(pcre),
 
410
  DRIZZLE_SYSVAR(threshold_slow),
 
411
  DRIZZLE_SYSVAR(threshold_big_resultset),
 
412
  DRIZZLE_SYSVAR(threshold_big_examined),
 
413
  NULL
 
414
};
335
415
 
336
416
DRIZZLE_DECLARE_PLUGIN
337
417
{
341
421
  "Mark Atwood <mark@fallenpegasus.com>",
342
422
  N_("Log queries to a CSV file"),
343
423
  PLUGIN_LICENSE_GPL,
344
 
  drizzle_plugin::logging_query_plugin_init,
345
 
  NULL,
346
 
  drizzle_plugin::init_options
 
424
  logging_query_plugin_init,
 
425
  logging_query_system_variables,
 
426
  init_options
347
427
}
348
428
DRIZZLE_DECLARE_PLUGIN_END;