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searchd.cpp
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searchd.cpp
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//
// Copyright (c) 2017-2023, Manticore Software LTD (https://manticoresearch.com)
// Copyright (c) 2001-2016, Andrew Aksyonoff
// Copyright (c) 2008-2016, Sphinx Technologies Inc
// All rights reserved
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License. You should have
// received a copy of the GPL license along with this program; if you
// did not, you can find it at http://www.gnu.org/
//
#include "sphinxutils.h"
#include "fileutils.h"
#include "sphinxexcerpt.h"
#include "sphinxrt.h"
#include "sphinxpq.h"
#include "sphinxint.h"
#include "sphinxquery.h"
#include "sphinxsort.h"
#include "sphinxjson.h"
#include "sphinxjsonquery.h"
#include "sphinxplugin.h"
#include "sphinxqcache.h"
#include "accumulator.h"
#include "searchdaemon.h"
#include "searchdha.h"
#include "searchdreplication.h"
#include "threadutils.h"
#include "searchdtask.h"
#include "global_idf.h"
#include "docstore.h"
#include "searchdssl.h"
#include "searchdexpr.h"
#include "indexsettings.h"
#include "searchdddl.h"
#include "networking_daemon.h"
#include "query_status.h"
#include "sphinxql_debug.h"
#include "stackmock.h"
#include "binlog.h"
#include "indexfiles.h"
#include "digest_sha1.h"
#include "tokenizer/charset_definition_parser.h"
#include "client_session.h"
#include "sphinx_alter.h"
#include "docs_collector.h"
#include "index_rotator.h"
#include "config_reloader.h"
#include "secondarylib.h"
#include "task_dispatcher.h"
#include "tracer.h"
#include "netfetch.h"
#include "queryfilter.h"
#include "pseudosharding.h"
// services
#include "taskping.h"
#include "taskmalloctrim.h"
#include "taskoptimize.h"
#include "taskglobalidf.h"
#include "tasksavestate.h"
#include "taskflushbinlog.h"
#include "taskflushattrs.h"
#include "taskflushmutable.h"
#include "taskpreread.h"
#include "coroutine.h"
#include "dynamic_idx.h"
#include "searchdbuddy.h"
#include "detail/indexlink.h"
#include "detail/expmeter.h"
extern "C"
{
#include "sphinxudf.h"
}
#include <csignal>
#include <clocale>
#include <cmath>
#include <ctime>
#define SEARCHD_BACKLOG 5
// don't shutdown on SIGKILL (debug purposes)
// 1 - SIGKILL will shut down the whole daemon; 0 - watchdog will reincarnate the daemon
#define WATCHDOG_SIGKILL 1
/////////////////////////////////////////////////////////////////////////////
#if _WIN32
// Win-specific headers and calls
#include <io.h>
#else
// UNIX-specific headers and calls
#include <sys/wait.h>
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#endif
#if USE_SYSLOG
#include <syslog.h>
#endif
#if HAVE_GETRLIMIT & HAVE_SETRLIMIT
#include <sys/resource.h>
#endif
/////////////////////////////////////////////////////////////////////////////
using namespace Threads;
static bool g_bService = false;
#if _WIN32
static bool g_bServiceStop = false;
static const char * g_sServiceName = "searchd";
static HANDLE g_hPipe = INVALID_HANDLE_VALUE;
#endif
static StrVec_t g_dArgs;
enum LogFormat_e
{
LOG_FORMAT_PLAIN,
LOG_FORMAT_SPHINXQL
};
#define LOG_COMPACT_IN 128 // upto this many IN(..) values allowed in query_log
static int g_iLogFile = STDOUT_FILENO; // log file descriptor
static auto& g_iParentPID = getParentPID (); // set by watchdog
static bool g_bLogSyslog = false;
static bool g_bQuerySyslog = false;
static CSphString g_sLogFile; // log file name
static bool g_bLogTty = false; // cached isatty(g_iLogFile)
static bool g_bLogStdout = true; // extra copy of startup log messages to stdout; true until around "accepting connections", then MUST be false
static LogFormat_e g_eLogFormat = LOG_FORMAT_SPHINXQL;
static bool g_bLogCompactIn = false; // whether to cut list in IN() clauses.
static int g_iQueryLogMinMs = 0; // log 'slow' threshold for query
static char g_sLogFilter[SPH_MAX_FILENAME_LEN+1] = "\0";
static int g_iLogFilterLen = 0;
static int g_iLogFileMode = 0;
static CSphBitvec g_tLogStatements;
int g_iReadTimeoutS = 5; // sec
int g_iWriteTimeoutS = 5; // sec
int g_iClientTimeoutS = 300;
int g_iClientQlTimeoutS = 900; // sec
static int g_iMaxConnection = 0; // unlimited
static int g_iThreads; // defined in config, or =cpu cores
static bool g_bWatchdog = true;
static int g_iExpansionLimit = 0;
static int g_iShutdownTimeoutUs = 3000000; // default timeout on daemon shutdown and stopwait is 3 seconds
static int g_iBacklog = SEARCHD_BACKLOG;
static int g_iThdQueueMax = 0;
static bool g_bGroupingInUtc = false;
static auto& g_iTFO = sphGetTFO ();
static CSphString g_sShutdownToken;
static int g_iServerID = 0;
static bool g_bServerID = false;
static bool g_bJsonConfigLoadedOk = false;
static auto& g_iAutoOptimizeCutoffMultiplier = AutoOptimizeCutoffMultiplier();
static constexpr bool AUTOOPTIMIZE_NEEDS_VIP = false; // whether non-VIP can issue 'SET GLOBAL auto_optimize = X'
static constexpr bool THREAD_EX_NEEDS_VIP = false; // whether non-VIP can issue 'SET GLOBAL auto_optimize = X'
static CSphVector<Listener_t> g_dListeners;
static int g_iQueryLogFile = -1;
static CSphString g_sQueryLogFile;
static CSphString g_sPidFile;
static bool g_bPidIsMine = false; // if PID is not mine, don't unlink it on fail
static int g_iPidFD = -1;
static int g_iMaxCachedDocs = 0; // in bytes
static int g_iMaxCachedHits = 0; // in bytes
int g_iMaxPacketSize = 8*1024*1024; // in bytes; for both query packets from clients and response packets from agents
static int g_iMaxFilters = 256;
static int g_iMaxFilterValues = 4096;
static int g_iMaxBatchQueries = 32;
static int64_t g_iDocstoreCache = 0;
static int64_t g_iSkipCache = 0;
static auto & g_iDistThreads = getDistThreads();
int g_iAgentConnectTimeoutMs = 1000;
int g_iAgentQueryTimeoutMs = 3000; // global (default). May be override by index-scope values, if one specified
const int MAX_RETRY_COUNT = 8;
const int MAX_RETRY_DELAY = 1000;
int g_iAgentRetryCount = 0;
int g_iAgentRetryDelayMs = MAX_RETRY_DELAY/2; // global (default) values. May be override by the query options 'retry_count' and 'retry_timeout'
bool g_bHostnameLookup = false;
CSphString g_sMySQLVersion = szMANTICORE_VERSION;
CSphString g_sDbName = "Manticore";
CSphString g_sBannerVersion { szMANTICORE_NAME };
CSphString g_sBanner;
CSphString g_sStatusVersion = szMANTICORE_VERSION;
CSphString g_sSecondaryError;
static CSphString g_sBuddyPath;
static bool g_bTelemetry = val_from_env ( "MANTICORE_TELEMETRY", true );
static bool g_bHasBuddyPath = false;
static bool g_bAutoSchema = true;
static bool g_bNoChangeCwd = val_from_env ( "MANTICORE_NO_CHANGE_CWD", false );
static int g_iDumpDocs = 1000000000;
// for CLang thread-safety analysis
ThreadRole MainThread; // functions which called only from main thread
ThreadRole HandlerThread; // thread which serves clients
//////////////////////////////////////////////////////////////////////////
static CSphString g_sConfigFile;
static bool LOG_LEVEL_SHUTDOWN = val_from_env("MANTICORE_TRACK_DAEMON_SHUTDOWN",false); // verbose logging when daemon shutdown, ruled by this env variable
static CSphString g_sConfigPath; // for resolve paths to absolute
static auto& g_bSeamlessRotate = sphGetSeamlessRotate ();
static bool g_bIOStats = false;
static auto& g_bCpuStats = sphGetbCpuStat ();
static bool g_bOptNoDetach = false;
static bool g_bOptNoLock = false;
static bool g_bSafeTrace = false;
static bool g_bStripPath = false;
static bool g_bCoreDump = false;
static bool LOG_LEVEL_LOCAL_SEARCH = val_from_env ( "MANTICORE_LOG_LOCAL_SEARCH", false ); // verbose logging local search events, ruled by this env variable
#define LOG_COMPONENT_LOCSEARCHINFO __LINE__ << " "
#define LOCSEARCHINFO LOGINFO ( LOCAL_SEARCH, LOCSEARCHINFO )
static auto& g_bGotSighup = sphGetGotSighup(); // we just received SIGHUP; need to log
static auto& g_bGotSigusr1 = sphGetGotSigusr1(); // we just received SIGUSR1; need to reopen logs
static auto& g_bGotSigusr2 = sphGetGotSigusr2(); // we just received SIGUSR2; need to dump daemon's bt
// pipe to watchdog to inform that daemon is going to close, so no need to restart it in case of crash
struct SharedData_t
{
bool m_bDaemonAtShutdown;
bool m_bHaveTTY;
};
static SharedData_t* g_pShared = nullptr;
volatile bool g_bMaintenance = false;
std::unique_ptr<ReadOnlyServedHash_c> g_pLocalIndexes = std::make_unique<ReadOnlyServedHash_c>(); // served (local) indexes hash
std::unique_ptr<ReadOnlyDistrHash_c> g_pDistIndexes = std::make_unique<ReadOnlyDistrHash_c>(); // distributed indexes hash
// this is internal deal of the daemon; don't expose it outside!
// fixme! move all this stuff to dedicated file.
static RwLock_t g_tRotateConfigMutex;
static CSphConfig g_hCfg GUARDED_BY ( g_tRotateConfigMutex );
static volatile bool g_bNeedRotate = false; // true if there were pending HUPs to handle (they could fly in during previous rotate)
static volatile bool g_bInRotate = false; // true while we are rotating
static volatile bool g_bReloadForced = false; // true in case reload issued via SphinxQL
static WorkerSharedPtr_t g_pTickPoolThread;
static CSphVector<CSphNetLoop*> g_dNetLoops;
constexpr int g_iExpMeterPeriod = 5000000; // once per 5s
static ExpMeter_c g_tStat1m { 12 }; // once a minute (12 * 5s)
static ExpMeter_c g_tStat5m { 12*5 }; // once a 5 minutes
static ExpMeter_c g_tStat15m { 12*15 }; // once a 15 minutes
static ExpMeter_c g_tPriStat1m { 12 }; // once a minute (12 * 5s)
static ExpMeter_c g_tPriStat5m { 12*5 }; // once a 5 minutes
static ExpMeter_c g_tPriStat15m { 12*15 }; // once a 15 minutes
static ExpMeter_c g_tSecStat1m { 12 }; // once a minute (12 * 5s)
static ExpMeter_c g_tSecStat5m { 12*5 }; // once a 5 minutes
static ExpMeter_c g_tSecStat15m { 12*15 }; // once a 15 minutes
int64_t g_iNextExpMeterTimestamp = sphMicroTimer() + g_iExpMeterPeriod;
/// command names
static const char * g_dApiCommands[] =
{
"search", "excerpt", "update", "keywords", "persist", "status", "query", "flushattrs", "query", "ping", "delete", "set", "insert", "replace", "commit", "suggest", "json",
"callpq", "clusterpq", "getfield"
};
STATIC_ASSERT ( sizeof(g_dApiCommands)/sizeof(g_dApiCommands[0])==SEARCHD_COMMAND_TOTAL, SEARCHD_COMMAND_SHOULD_BE_SAME_AS_SEARCHD_COMMAND_TOTAL );
//////////////////////////////////////////////////////////////////////////
const char * sAgentStatsNames[eMaxAgentStat+ehMaxStat]=
{ "query_timeouts", "connect_timeouts", "connect_failures",
"network_errors", "wrong_replies", "unexpected_closings",
"warnings", "succeeded_queries", "total_query_time",
"connect_count", "connect_avg", "connect_max" };
static RwLock_t g_tLastMetaLock;
static CSphQueryResultMeta g_tLastMeta GUARDED_BY ( g_tLastMetaLock );
/////////////////////////////////////////////////////////////////////////////
// MISC
/////////////////////////////////////////////////////////////////////////////
static void ReleaseTTYFlag()
{
if ( g_pShared )
g_pShared->m_bHaveTTY = true;
}
/////////////////////////////////////////////////////////////////////////////
// LOGGING
/////////////////////////////////////////////////////////////////////////////
/// physically emit log entry
/// buffer must have 1 extra byte for linefeed
#if _WIN32
static void sphLogEntry ( ESphLogLevel eLevel, char * sBuf, char * sTtyBuf )
#else
static void sphLogEntry ( ESphLogLevel , char * sBuf, char * sTtyBuf )
#endif
{
#if _WIN32
if ( g_bService && g_iLogFile==STDOUT_FILENO )
{
HANDLE hEventSource;
LPCTSTR lpszStrings[2];
hEventSource = RegisterEventSource ( NULL, g_sServiceName );
if ( hEventSource )
{
lpszStrings[0] = g_sServiceName;
lpszStrings[1] = sBuf;
WORD eType;
switch ( eLevel )
{
case SPH_LOG_FATAL: eType = EVENTLOG_ERROR_TYPE; break;
case SPH_LOG_WARNING: eType = EVENTLOG_WARNING_TYPE; break;
case SPH_LOG_INFO: eType = EVENTLOG_INFORMATION_TYPE; break;
default: eType = EVENTLOG_INFORMATION_TYPE; break;
}
ReportEvent ( hEventSource, // event log handle
eType, // event type
0, // event category
0, // event identifier
NULL, // no security identifier
2, // size of lpszStrings array
0, // no binary data
lpszStrings, // array of strings
NULL ); // no binary data
DeregisterEventSource ( hEventSource );
}
} else
#endif
{
strcat ( sBuf, "\n" ); // NOLINT
sphSeek ( g_iLogFile, 0, SEEK_END );
if ( g_bLogTty )
{
memmove ( sBuf+20, sBuf+15, 9);
sTtyBuf = sBuf + 19;
*sTtyBuf = '[';
sphWrite ( g_iLogFile, sTtyBuf, strlen(sTtyBuf) );
}
else
sphWrite ( g_iLogFile, sBuf, strlen(sBuf) );
if ( g_bLogStdout && g_iLogFile!=STDOUT_FILENO )
sphWrite ( STDOUT_FILENO, sTtyBuf, strlen(sTtyBuf) );
}
}
/// log entry (with log levels, dupe catching, etc)
/// call with NULL format for dupe flushing
void sphLog ( ESphLogLevel eLevel, const char * sFmt, va_list ap )
{
// dupe catcher state
static const int FLUSH_THRESH_TIME = 1000000; // in microseconds
static const int FLUSH_THRESH_COUNT = 100;
static ESphLogLevel eLastLevel = SPH_LOG_INFO;
static DWORD uLastEntry = 0;
static int64_t tmLastStamp = -1000000-FLUSH_THRESH_TIME;
static int iLastRepeats = 0;
// only if we can
if ( sFmt && eLevel>g_eLogLevel )
return;
#if USE_SYSLOG
if ( g_bLogSyslog && sFmt )
{
const int levels[SPH_LOG_MAX+1] = { LOG_EMERG, LOG_WARNING, LOG_INFO, LOG_DEBUG, LOG_DEBUG, LOG_DEBUG, LOG_DEBUG };
vsyslog ( levels[eLevel], sFmt, ap );
return;
}
#endif
if ( g_iLogFile<0 && !g_bService )
return;
// format the banner
char sTimeBuf[128];
sphFormatCurrentTime ( sTimeBuf, sizeof(sTimeBuf) );
const char * sBanner = "";
if ( sFmt==NULL ) eLevel = eLastLevel;
if ( eLevel==SPH_LOG_FATAL ) sBanner = "FATAL: ";
if ( eLevel==SPH_LOG_WARNING ) sBanner = "WARNING: ";
if ( eLevel>=SPH_LOG_DEBUG ) sBanner = "DEBUG: ";
if ( eLevel==SPH_LOG_RPL_DEBUG ) sBanner = "RPL: ";
char sBuf [ 1024 ];
snprintf ( sBuf, sizeof(sBuf)-1, "[%s] [%d] ", sTimeBuf, GetOsThreadId() );
char * sTtyBuf = sBuf + strlen(sBuf);
strncpy ( sTtyBuf, sBanner, 32 ); // 32 is arbitrary; just something that is enough and keeps lint happy
auto iLen = (int) strlen(sBuf);
// format the message
if ( sFmt )
{
// need more space for tail zero and "\n" that added at sphLogEntry
int iSafeGap = 4;
int iBufSize = sizeof(sBuf)-iLen-iSafeGap;
vsnprintf ( sBuf+iLen, iBufSize, sFmt, ap );
sBuf[ sizeof(sBuf)-iSafeGap ] = '\0';
}
if ( sFmt && eLevel>SPH_LOG_INFO && g_iLogFilterLen )
{
if ( strncmp ( sBuf+iLen, g_sLogFilter, g_iLogFilterLen )!=0 )
return;
}
// catch dupes
DWORD uEntry = sFmt ? sphCRC32 ( sBuf+iLen ) : 0;
int64_t tmNow = sphMicroTimer();
// accumulate while possible
if ( sFmt && eLevel==eLastLevel && uEntry==uLastEntry && iLastRepeats<FLUSH_THRESH_COUNT && tmNow<tmLastStamp+FLUSH_THRESH_TIME )
{
tmLastStamp = tmNow;
iLastRepeats++;
return;
}
// flush if needed
if ( iLastRepeats!=0 && ( sFmt || tmNow>=tmLastStamp+FLUSH_THRESH_TIME ) )
{
// flush if we actually have something to flush, and
// case 1: got a message we can't accumulate
// case 2: got a periodic flush and been otherwise idle for a thresh period
char sLast[256];
iLen = Min ( iLen, 256 );
strncpy ( sLast, sBuf, iLen );
if ( iLen < 256 )
snprintf ( sLast+iLen, sizeof(sLast)-iLen, "last message repeated %d times", iLastRepeats );
sphLogEntry ( eLastLevel, sLast, sLast + ( sTtyBuf-sBuf ) );
tmLastStamp = tmNow;
iLastRepeats = 0;
eLastLevel = SPH_LOG_INFO;
uLastEntry = 0;
}
// was that a flush-only call?
if ( !sFmt )
return;
tmLastStamp = tmNow;
iLastRepeats = 0;
eLastLevel = eLevel;
uLastEntry = uEntry;
// do the logging
sphLogEntry ( eLevel, sBuf, sTtyBuf );
}
void Shutdown (); // forward
bool DieOrFatalWithShutdownCb ( bool bDie, const char * sFmt, va_list ap )
{
if ( bDie )
g_pLogger () ( SPH_LOG_FATAL, sFmt, ap );
else
Shutdown ();
return false; // don't lot to stdout
}
bool DieOrFatalCb ( bool bDie, const char * sFmt, va_list ap )
{
if ( bDie )
g_pLogger () ( SPH_LOG_FATAL, sFmt, ap );
return false; // don't lot to stdout
}
#if !_WIN32
static CSphString GetNamedPipeName ( int iPid )
{
CSphString sRes;
sRes.SetSprintf ( "/tmp/searchd_%d", iPid );
return sRes;
}
#endif
void LogChangeMode ( int iFile, int iMode )
{
if ( iFile<0 || iMode==0 || iFile==STDOUT_FILENO || iFile==STDERR_FILENO )
return;
#if !_WIN32
fchmod ( iFile, iMode );
#endif
}
/////////////////////////////////////////////////////////////////////////////
static int CmpString ( const CSphString & a, const CSphString & b )
{
if ( !a.cstr() && !b.cstr() )
return 0;
if ( !a.cstr() || !b.cstr() )
return a.cstr() ? -1 : 1;
return strcmp ( a.cstr(), b.cstr() );
}
struct SearchFailure_t
{
CSphString m_sParentIndex;
CSphString m_sIndex; ///< searched index name
CSphString m_sError; ///< search error message
bool operator == ( const SearchFailure_t & r ) const
{
return m_sIndex==r.m_sIndex && m_sError==r.m_sError && m_sParentIndex==r.m_sParentIndex;
}
bool operator < ( const SearchFailure_t & r ) const
{
int iRes = CmpString ( m_sError.cstr(), r.m_sError.cstr() );
if ( !iRes )
iRes = CmpString ( m_sParentIndex.cstr (), r.m_sParentIndex.cstr () );
if ( !iRes )
iRes = CmpString ( m_sIndex.cstr(), r.m_sIndex.cstr() );
return iRes<0;
}
SearchFailure_t & operator = ( const SearchFailure_t & r )
{
if ( this!=&r )
{
m_sParentIndex = r.m_sParentIndex;
m_sIndex = r.m_sIndex;
m_sError = r.m_sError;
}
return *this;
}
};
static void ReportIndexesName ( int iSpanStart, int iSpandEnd, const CSphVector<SearchFailure_t> & dLog, StringBuilder_c & sOut );
class SearchFailuresLog_c
{
CSphVector<SearchFailure_t> m_dLog;
public:
void Submit ( const CSphString& sIndex, const char * sParentIndex , const char * sError )
{
SearchFailure_t & tEntry = m_dLog.Add ();
tEntry.m_sParentIndex = sParentIndex;
tEntry.m_sIndex = sIndex;
tEntry.m_sError = sError;
}
void SubmitVa ( const char * sIndex, const char * sParentIndex, const char * sTemplate, va_list ap )
{
StringBuilder_c tError;
tError.vAppendf ( sTemplate, ap );
SearchFailure_t &tEntry = m_dLog.Add ();
tEntry.m_sParentIndex = sParentIndex;
tEntry.m_sIndex = sIndex;
tError.MoveTo ( tEntry.m_sError );
}
inline void Append ( const SearchFailuresLog_c& rhs )
{
m_dLog.Append ( rhs.m_dLog );
}
void SubmitEx ( const char * sIndex, const char * sParentIndex, const char * sTemplate, ... ) __attribute__ ( ( format ( printf, 4, 5 ) ) )
{
va_list ap;
va_start ( ap, sTemplate );
SubmitVa ( sIndex, sParentIndex, sTemplate, ap);
va_end ( ap );
}
void SubmitEx ( const CSphString &sIndex, const char * sParentIndex, const char * sTemplate, ... ) __attribute__ ( ( format ( printf, 4, 5 ) ) )
{
va_list ap;
va_start ( ap, sTemplate );
SubmitVa ( sIndex.cstr(), sParentIndex, sTemplate, ap );
va_end ( ap );
}
bool IsEmpty ()
{
return m_dLog.GetLength()==0;
}
int GetReportsCount()
{
return m_dLog.GetLength();
}
void BuildReport ( StringBuilder_c & sReport )
{
if ( IsEmpty() )
return;
// collapse same messages
m_dLog.Uniq ();
int iSpanStart = 0;
Comma_c sColon( { ";\n", 2 } );
for ( int i=1; i<=m_dLog.GetLength(); ++i )
{
// keep scanning while error text is the same
if ( i!=m_dLog.GetLength() )
if ( m_dLog[i].m_sError==m_dLog[i-1].m_sError )
continue;
sReport << sColon;
ReportIndexesName ( iSpanStart, i, m_dLog, sReport );
sReport << m_dLog[iSpanStart].m_sError;
// done
iSpanStart = i;
}
}
};
#define LOG_COMPONENT_SEARCHD __LINE__ << " "
#define SHUTINFO LOGINFO (SHUTDOWN,SEARCHD)
/////////////////////////////////////////////////////////////////////////////
// SIGNAL HANDLERS
/////////////////////////////////////////////////////////////////////////////
void Shutdown () REQUIRES ( MainThread ) NO_THREAD_SAFETY_ANALYSIS
{
// force even long time searches to shut
SHUTINFO << "Trigger g_bInterruptNow ...";
sphInterruptNow ();
SHUTINFO << "Shutdown curl query subsystem ...";
ShutdownCurl();
#if !_WIN32
int fdStopwait = -1;
#endif
bool bAttrsSaveOk = true;
if ( g_pShared )
g_pShared->m_bDaemonAtShutdown = true;
#if !_WIN32
// stopwait handshake
CSphString sPipeName = GetNamedPipeName ( getpid() );
fdStopwait = ::open ( sPipeName.cstr(), O_WRONLY | O_NONBLOCK );
if ( fdStopwait>=0 )
{
DWORD uHandshakeOk = 0;
int VARIABLE_IS_NOT_USED iDummy = ::write ( fdStopwait, &uHandshakeOk, sizeof(DWORD) );
}
#endif
int64_t tmShutStarted = sphMicroTimer ();
// release all planned/scheduled tasks
SHUTINFO << "Shut down mini timer ...";
sph::ShutdownMiniTimer();
SHUTINFO << "Shut down flushing mutable ...";
ShutdownFlushingMutable();
// stop search threads; up to shutdown_timeout seconds
SHUTINFO << "Wait preread (if any) finished ...";
WaitPrereadFinished ( g_iShutdownTimeoutUs );
// save attribute updates for all local indexes
SHUTINFO << "Finally save tables ...";
bAttrsSaveOk = FinallySaveIndexes();
// right before unlock loop
if ( g_bJsonConfigLoadedOk )
{
CSphString sError;
SHUTINFO << "Save json config ...";
SaveConfigInt(sError);
}
// stop netloop processing
SHUTINFO << "Stop netloop processing ...";
for ( auto & pNetLoop : g_dNetLoops )
{
pNetLoop->StopNetLoop ();
SafeRelease ( pNetLoop );
}
// stop netloop threads
SHUTINFO << "Stop netloop pool ...";
if ( g_pTickPoolThread )
g_pTickPoolThread->StopAll ();
// call scheduled callbacks:
// shutdown replication,
// shutdown ssl,
// shutdown tick threads,
SHUTINFO << "Invoke shutdown callbacks ...";
searchd::FireShutdownCbs ();
SHUTINFO << "Waiting clients to finish ... (" << myinfo::CountClients() << ")";
while ( ( myinfo::CountClients ()>0 ) && ( sphMicroTimer ()-tmShutStarted )<g_iShutdownTimeoutUs )
sphSleepMsec ( 50 );
if ( myinfo::CountClients ()>0 )
{
int64_t tmDelta = sphMicroTimer ()-tmShutStarted;
sphWarning ( "still %d alive tasks during shutdown, after %d.%03d sec", myinfo::CountClients (), (int) ( tmDelta
/ 1000000 ), (int) ( ( tmDelta / 1000 ) % 1000 ) );
}
// unlock indexes and release locks if needed
SHUTINFO << "Unlock tables ...";
{
ServedSnap_t hLocal = g_pLocalIndexes->GetHash();
for ( const auto& tIt : *hLocal )
RWIdx_c ( tIt.second )->Unlock();
}
Threads::CallCoroutine ( [] {
SHUTINFO << "Abandon local tables list ...";
g_pLocalIndexes->ReleaseAndClear();
// unlock Distr indexes automatically done by d-tr
SHUTINFO << "Abandon distr tables list ...";
g_pDistIndexes->ReleaseAndClear();
} );
SHUTINFO << "Shutdown alone threads (if any) ...";
Detached::ShutdownAllAlones();
SHUTINFO << "Shutdown main work pool ...";
auto pPool = GlobalWorkPool();
if ( pPool )
pPool->StopAll();
SHUTINFO << "Remove local tables list ...";
g_pLocalIndexes.reset();
SHUTINFO << "Remove distr tables list ...";
g_pDistIndexes.reset();
// clear shut down of rt indexes + binlog
SHUTINFO << "Finish IO stats collecting ...";
sphDoneIOStats();
SHUTINFO << "Finish RT serving ...";
Binlog::Deinit();
SHUTINFO << "Shutdown docstore ...";
ShutdownDocstore();
SHUTINFO << "Shutdown skip cache ...";
ShutdownSkipCache();
SHUTINFO << "Shutdown global IDFs ...";
sph::ShutdownGlobalIDFs ();
SHUTINFO << "Shutdown aot ...";
sphAotShutdown ();
SHUTINFO << "Shutdown columnar ...";
ShutdownColumnar();
SHUTINFO << "Shutdown listeners ...";
for ( auto& dListener : g_dListeners )
if ( dListener.m_iSock>=0 )
sphSockClose ( dListener.m_iSock );
SHUTINFO << "Close persistent sockets ...";
ClosePersistentSockets();
// close pid
SHUTINFO << "Release (close) pid file ...";
if ( g_iPidFD!=-1 )
::close ( g_iPidFD );
g_iPidFD = -1;
// remove pid file, if we owned it
if ( g_bPidIsMine && !g_sPidFile.IsEmpty() )
::unlink ( g_sPidFile.cstr() );
SHUTINFO << "Shutdown hazard pointers ...";
hazard::Shutdown ();
// wordforms till there might be referenced from accum (rt-index), which, in turn, is part of client session.
// so, shutdown them before will probably fail.
// after hazard shutdown, all sessions are surely done, so wordforms is good to be destroyed at this point.
SHUTINFO << "Shutdown wordforms ...";
sphShutdownWordforms();
sphInfo ( "shutdown daemon version '%s' ...", g_sStatusVersion.cstr() );
sphInfo ( "shutdown complete" );
Threads::Done ( g_iLogFile );
#if _WIN32
CloseHandle ( g_hPipe );
#else
if ( fdStopwait>=0 )
{
DWORD uStatus = bAttrsSaveOk;
int VARIABLE_IS_NOT_USED iDummy = ::write ( fdStopwait, &uStatus, sizeof(DWORD) );
::close ( fdStopwait );
}
#endif
}
void sighup ( int )
{
g_bGotSighup = 1;
}
static void sigterm ( int )
{
// tricky bit
// we can't call exit() here because malloc()/free() are not re-entrant
// we could call _exit() but let's try to die gracefully on TERM
// and let signal sender wait and send KILL as needed
sphInterruptNow();
}
static void sigusr1 ( int )
{
g_bGotSigusr1 = true;
}
static void sigusr2 ( int )
{
g_bGotSigusr2 = true;
}
struct QueryCopyState_t
{
BYTE * m_pDst;
BYTE * m_pDstEnd;
const BYTE * m_pSrc;
const BYTE * m_pSrcEnd;
};
// crash query handler
static const int g_iQueryLineLen = 80;
static const char g_dEncodeBase64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static bool sphCopyEncodedBase64 ( QueryCopyState_t & tEnc )
{
BYTE * pDst = tEnc.m_pDst;
const BYTE * pDstBase = tEnc.m_pDst;
const BYTE * pSrc = tEnc.m_pSrc;
const BYTE * pDstEnd = tEnc.m_pDstEnd-5;
const BYTE * pSrcEnd = tEnc.m_pSrcEnd-3;
while ( pDst<=pDstEnd && pSrc<=pSrcEnd )
{
// put line delimiter at max line length
if ( ( ( pDst-pDstBase ) % g_iQueryLineLen )>( ( pDst-pDstBase+4 ) % g_iQueryLineLen ) )
*pDst++ = '\n';
// Convert to big endian
DWORD uSrc = ( pSrc[0] << 16 ) | ( pSrc[1] << 8 ) | ( pSrc[2] );
pSrc += 3;
*pDst++ = g_dEncodeBase64 [ ( uSrc & 0x00FC0000 ) >> 18 ];
*pDst++ = g_dEncodeBase64 [ ( uSrc & 0x0003F000 ) >> 12 ];
*pDst++ = g_dEncodeBase64 [ ( uSrc & 0x00000FC0 ) >> 6 ];
*pDst++ = g_dEncodeBase64 [ ( uSrc & 0x0000003F ) ];
}
// there is a tail in source data and a room for it at destination buffer
if ( pSrc<tEnc.m_pSrcEnd && ( tEnc.m_pSrcEnd-pSrc<3 ) && ( pDst<=pDstEnd-4 ) )
{
int iLeft = ( tEnc.m_pSrcEnd - pSrc ) % 3;
if ( iLeft==1 )
{
DWORD uSrc = pSrc[0]<<16;
pSrc += 1;
*pDst++ = g_dEncodeBase64 [ ( uSrc & 0x00FC0000 ) >> 18 ];
*pDst++ = g_dEncodeBase64 [ ( uSrc & 0x0003F000 ) >> 12 ];
*pDst++ = '=';
*pDst++ = '=';
} else if ( iLeft==2 )
{
DWORD uSrc = ( pSrc[0]<<16 ) | ( pSrc[1] << 8 );
pSrc += 2;
*pDst++ = g_dEncodeBase64 [ ( uSrc & 0x00FC0000 ) >> 18 ];
*pDst++ = g_dEncodeBase64 [ ( uSrc & 0x0003F000 ) >> 12 ];
*pDst++ = g_dEncodeBase64 [ ( uSrc & 0x00000FC0 ) >> 6 ];
*pDst++ = '=';
}
}
tEnc.m_pDst = pDst;
tEnc.m_pSrc = pSrc;
return ( tEnc.m_pSrc<tEnc.m_pSrcEnd );
}
static bool sphCopySphinxQL ( QueryCopyState_t & tState )
{
BYTE * pDst = tState.m_pDst;
const BYTE * pSrc = tState.m_pSrc;
BYTE * pNextLine = pDst+g_iQueryLineLen;
while ( pDst<tState.m_pDstEnd && pSrc<tState.m_pSrcEnd )
{
if ( pDst>pNextLine && pDst+1<tState.m_pDstEnd && ( sphIsSpace ( *pSrc ) || *pSrc==',' ) )
{
*pDst++ = *pSrc++;
*pDst++ = '\n';
pNextLine = pDst + g_iQueryLineLen;
} else
{
*pDst++ = *pSrc++;
}
}
tState.m_pDst = pDst;
tState.m_pSrc = pSrc;
return ( tState.m_pSrc<tState.m_pSrcEnd );
}
static bool sphCopySphinxHttp ( QueryCopyState_t & tState )
{
BYTE * pDst = tState.m_pDst;
const BYTE * pSrc = tState.m_pSrc;
while ( pDst<tState.m_pDstEnd && pSrc<tState.m_pSrcEnd )
{
*pDst++ = *pSrc++;
}
tState.m_pDst = pDst;
tState.m_pSrc = pSrc;
return ( tState.m_pSrc<tState.m_pSrcEnd );
}
typedef bool CopyQuery_fn ( QueryCopyState_t & tState );
#define SPH_TIME_PID_MAX_SIZE 256
const char g_sCrashedBannerAPI[] = "\n--- crashed SphinxAPI request dump ---\n";
const char g_sCrashedBannerMySQL[] = "\n--- crashed SphinxQL request dump ---\n";
const char g_sCrashedBannerHTTP[] = "\n--- crashed HTTP request dump ---\n";
const char g_sCrashedBannerBad[] = "\n--- crashed invalid query ---\n";
const char g_sCrashedBannerTail[] = "\n--- request dump end ---\n";
const char g_sCrashedIndex[] = "--- local index:";
const char g_sEndLine[] = "\n";
#if _WIN32
const char g_sMinidumpBanner[] = "minidump located at: ";
#endif
#if SPH_ALLOCS_PROFILER
const char g_sMemoryStatBanner[] = "\n--- memory statistics ---\n";
#endif
static BYTE g_dCrashQueryBuff [4096];
static char g_sCrashInfo [SPH_TIME_PID_MAX_SIZE] = "[][]\n";
static int g_iCrashInfoLen = 0;
#if _WIN32
static char g_sMinidump[SPH_TIME_PID_MAX_SIZE] = "";
#endif
#if !_WIN32
void CrashLogger::HandleCrash ( int sig ) NO_THREAD_SAFETY_ANALYSIS
#else