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705 lines
22 KiB
C++
705 lines
22 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/*******************************************************************************
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* $Id: we_config.cpp 4737 2013-08-14 20:45:46Z bwilkinson $
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*
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*******************************************************************************/
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/** @file */
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#include <string>
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#include <boost/thread.hpp>
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#include <vector>
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#include <sstream>
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#include <algorithm>
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using namespace std;
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#include "configcpp.h"
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#include "liboamcpp.h"
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#include "installdir.h"
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#include "we_config.h"
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using namespace config;
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#include "IDBPolicy.h"
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using namespace idbdatafile;
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#include <boost/algorithm/string.hpp>
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namespace WriteEngine
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{
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const int DEFAULT_WAIT_PERIOD = 10;
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const unsigned DEFAULT_FILES_PER_COLUMN_PARTITION = 4;
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const unsigned DEFAULT_EXTENTS_PER_SEGMENT_FILE = 2;
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const int DEFAULT_BULK_PROCESS_PRIORITY = -1;
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const unsigned DEFAULT_MAX_FILESYSTEM_DISK_USAGE = 98; // allow 98% full
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const unsigned DEFAULT_COMPRESSED_PADDING_BLKS = 1;
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const int DEFAULT_LOCAL_MODULE_ID = 1;
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const bool DEFAULT_PARENT_OAM = true;
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const char* DEFAULT_LOCAL_MODULE_TYPE = "pm";
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int Config::m_dbRootCount = 0;
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Config::strvec_t Config::m_dbRootPath;
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Config::intstrmap_t Config::m_dbRootPathMap;
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Config::uint16vec_t Config::m_dbRootId;
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string Config::m_bulkRoot;
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unsigned long Config::fDBRootChangeCount = 0;
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time_t Config::fCacheTime = 0;
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boost::mutex Config::fCacheLock;
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#ifdef SHARED_NOTHING_DEMO_2
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boost::mutex Config::m_bulkRoot_lk;
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#endif
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int Config::m_WaitPeriod = DEFAULT_WAIT_PERIOD;
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unsigned Config::m_FilesPerColumnPartition =
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DEFAULT_FILES_PER_COLUMN_PARTITION;
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unsigned Config::m_ExtentsPerSegmentFile =
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DEFAULT_EXTENTS_PER_SEGMENT_FILE;
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int Config::m_BulkProcessPriority = DEFAULT_BULK_PROCESS_PRIORITY;
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string Config::m_BulkRollbackDir;
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unsigned Config::m_MaxFileSystemDiskUsage =
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DEFAULT_MAX_FILESYSTEM_DISK_USAGE;
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unsigned Config::m_NumCompressedPadBlks = DEFAULT_COMPRESSED_PADDING_BLKS;
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bool Config::m_ParentOAMModuleFlag = DEFAULT_PARENT_OAM;
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string Config::m_LocalModuleType;
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int Config::m_LocalModuleID = DEFAULT_LOCAL_MODULE_ID;
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string Config::m_VersionBufferDir;
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/*******************************************************************************
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* DESCRIPTION:
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* Loads config parms into local cache.
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* Call can be made to initConfigCache() at the start
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* of the program to initialize local cache, before calling accessors.
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* PARAMETERS:
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* none
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******************************************************************************/
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void Config::initConfigCache()
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{
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boost::mutex::scoped_lock lk(fCacheLock);
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checkReload( );
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}
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/*******************************************************************************
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* DESCRIPTION:
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* Reload local cache using contents of Columnstore.xml file.
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* PARAMETERS:
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* none
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******************************************************************************/
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void Config::checkReload( )
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{
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bool bFirstLoad = false;
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if (fCacheTime == 0)
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bFirstLoad = true;
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config::Config* cf = config::Config::makeConfig();
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// Immediately return if Columnstore.xml timestamp has not changed
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if (cf->getCurrentMTime() == fCacheTime)
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return;
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//std::cout << "RELOADING cache..." << std::endl;
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//--------------------------------------------------------------------------
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// Initialize bulk root directory
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//--------------------------------------------------------------------------
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m_bulkRoot = cf->getConfig("WriteEngine", "BulkRoot");
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if ( m_bulkRoot.length() == 0 )
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{
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m_bulkRoot = startup::StartUp::installDir();
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#ifndef _MSC_VER
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m_bulkRoot += "/data";
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#endif
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m_bulkRoot += "/bulk";
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}
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// Get latest Columnstore.xml timestamp after first access forced a reload
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fCacheTime = cf ->getLastMTime();
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//--------------------------------------------------------------------------
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// Initialize time interval (in seconds) between retries
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//--------------------------------------------------------------------------
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m_WaitPeriod = DEFAULT_WAIT_PERIOD;
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string waitPeriodStr = cf->getConfig("SystemConfig", "WaitPeriod");
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if ( waitPeriodStr.length() != 0 )
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m_WaitPeriod = static_cast<int>(config::Config::fromText(
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waitPeriodStr));
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//--------------------------------------------------------------------------
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// Initialize files per column partition
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//--------------------------------------------------------------------------
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m_FilesPerColumnPartition = DEFAULT_FILES_PER_COLUMN_PARTITION;
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string fpc = cf->getConfig("ExtentMap", "FilesPerColumnPartition");
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if ( fpc.length() != 0 )
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m_FilesPerColumnPartition = cf->uFromText(fpc);
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//--------------------------------------------------------------------------
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// Initialize extents per segment file
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//--------------------------------------------------------------------------
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m_ExtentsPerSegmentFile = DEFAULT_EXTENTS_PER_SEGMENT_FILE;
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string epsf = cf->getConfig("ExtentMap", "ExtentsPerSegmentFile");
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if ( epsf.length() != 0 )
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m_ExtentsPerSegmentFile = cf->uFromText(epsf);
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//--------------------------------------------------------------------------
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// Initialize bulk load process priority
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//--------------------------------------------------------------------------
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m_BulkProcessPriority = DEFAULT_BULK_PROCESS_PRIORITY;
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string prior = cf->getConfig("WriteEngine", "Priority");
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if ( prior.length() != 0 )
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{
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int initialBPP = cf->fromText(prior);
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// config file priority is 40..1 (highest..lowest)
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// convert config file value to setpriority(2) value(-20..19, -1 is the
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// default)
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if (initialBPP > 0)
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m_BulkProcessPriority = 20 - initialBPP;
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else if (initialBPP < 0)
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m_BulkProcessPriority = 19;
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if (m_BulkProcessPriority < -20)
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m_BulkProcessPriority = -20;
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}
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//--------------------------------------------------------------------------
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// Initialize bulk rollback directory
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// Note this uses m_bulkRoot, so this init section must be after the section
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// that sets m_bulkRoot.
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//--------------------------------------------------------------------------
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m_BulkRollbackDir = cf->getConfig("WriteEngine", "BulkRollbackDir");
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if (m_BulkRollbackDir.length() == 0)
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{
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m_BulkRollbackDir.assign( m_bulkRoot );
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m_BulkRollbackDir += "/rollback";
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}
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//--------------------------------------------------------------------------
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// Initialize max disk usage
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//--------------------------------------------------------------------------
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m_MaxFileSystemDiskUsage = DEFAULT_MAX_FILESYSTEM_DISK_USAGE;
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string usg = cf->getConfig("WriteEngine", "MaxFileSystemDiskUsagePct");
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if ( usg.length() != 0 )
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m_MaxFileSystemDiskUsage = cf->uFromText(usg);
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if (m_MaxFileSystemDiskUsage > 100)
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m_MaxFileSystemDiskUsage = DEFAULT_MAX_FILESYSTEM_DISK_USAGE;
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//--------------------------------------------------------------------------
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// Number of compressed padding blocks
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//--------------------------------------------------------------------------
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m_NumCompressedPadBlks = DEFAULT_COMPRESSED_PADDING_BLKS;
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string ncpb = cf->getConfig("WriteEngine", "CompressedPaddingBlocks");
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if ( ncpb.length() != 0 )
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m_NumCompressedPadBlks = cf->uFromText(ncpb);
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#if 0 // common code, moved to IDBPolicy
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//--------------------------------------------------------------------------
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// IDBDataFile logging
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//--------------------------------------------------------------------------
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bool idblog = false;
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string idblogstr = cf->getConfig("SystemConfig", "DataFileLog");
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if ( idblogstr.length() != 0 )
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{
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boost::to_upper(idblogstr);
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idblog = ( idblogstr == "ON" );
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}
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//--------------------------------------------------------------------------
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// Optional File System Plugin - if a HDFS type plugin is loaded
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// then the system will use HDFS for all IDB data files
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//--------------------------------------------------------------------------
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string fsplugin = cf->getConfig("SystemConfig", "DataFilePlugin");
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if ( fsplugin.length() != 0 )
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{
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IDBPolicy::installPlugin(fsplugin);
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}
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//--------------------------------------------------------------------------
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// HDFS file buffering
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//--------------------------------------------------------------------------
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// Maximum amount of memory to use for hdfs buffering.
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bool bUseRdwrMemBuffer = true; // If true, use in-memory buffering, else use file buffering
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int64_t hdfsRdwrBufferMaxSize = 0;
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string strBufferMaxSize = cf->getConfig("SystemConfig", "hdfsRdwrBufferMaxSize");
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if (strBufferMaxSize.length() == 0)
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{
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// Default is use membuf with no maximum size.
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bUseRdwrMemBuffer = true;
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}
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else
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{
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hdfsRdwrBufferMaxSize = static_cast<int64_t>(cf->uFromText(strBufferMaxSize));
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if ( hdfsRdwrBufferMaxSize == 0 )
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{
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// If we're given a size of 0, turn off membuffering.
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bUseRdwrMemBuffer = false;
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}
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}
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// Directory in which to place file buffer temporary files.
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string hdfsRdwrScratch = cf->getConfig("SystemConfig", "hdfsRdwrScratch");
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if ( hdfsRdwrScratch.length() == 0 )
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{
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hdfsRdwrScratch = "/tmp/hdfsscratch";
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}
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IDBPolicy::init( idblog, bUseRdwrMemBuffer, hdfsRdwrScratch, hdfsRdwrBufferMaxSize );
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#endif
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IDBPolicy::configIDBPolicy();
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//--------------------------------------------------------------------------
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// Initialize Parent OAM Module flag
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// Initialize Module Type
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// Initialize Local Module ID
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//--------------------------------------------------------------------------
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oam::Oam oam;
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oam::oamModuleInfo_t t;
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try
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{
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t = oam.getModuleInfo();
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m_ParentOAMModuleFlag = boost::get<4>(t);
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m_LocalModuleType = boost::get<1>(t);
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m_LocalModuleID = boost::get<2>(t);
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}
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catch (exception&)
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{
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m_ParentOAMModuleFlag = DEFAULT_PARENT_OAM;
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m_LocalModuleType.assign( DEFAULT_LOCAL_MODULE_TYPE );
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m_LocalModuleID = DEFAULT_LOCAL_MODULE_ID;
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}
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//--------------------------------------------------------------------------
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// Initialize Version Buffer
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//--------------------------------------------------------------------------
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m_VersionBufferDir = cf->getConfig("SystemConfig", "DBRMRoot");
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if ( m_VersionBufferDir.length() == 0 )
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{
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#ifdef _MSC_VER
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m_VersionBufferDir = startup::StartUp::installDir() + "\\version";
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#else
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m_VersionBufferDir =
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startup::StartUp::installDir() + "/data1/systemFiles/dbrm/BRM_saves";
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#endif
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}
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//--------------------------------------------------------------------------
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// Initialize m_dbRootCount, m_dbRootPath, m_dbRootPathMap, m_dbRootId.
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// Note this uses m_localModuleType and m_LocalModuleID, so this init
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// section must be after the section(s) that set m_localModuleType and
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// m_LocalModuleID.
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//--------------------------------------------------------------------------
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uint16vec_t dbRootIdPrevious( m_dbRootId ); // save current settings
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strvec_t dbRootPathPrevious( m_dbRootPath ); // save current setttings
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m_dbRootPath.clear();
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m_dbRootPathMap.clear();
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m_dbRootId.clear();
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if (m_LocalModuleType == "pm")
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{
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oam::DBRootConfigList oamRootList;
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try
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{
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oam.getPmDbrootConfig( m_LocalModuleID, oamRootList );
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std::sort( oamRootList.begin(), oamRootList.end() );
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m_dbRootCount = oamRootList.size();
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for (unsigned int idx = 0; idx < oamRootList.size(); idx++)
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{
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ostringstream oss;
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oss << "DBRoot" << oamRootList[idx];
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std::string DbRootPath =
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cf->getConfig("SystemConfig", oss.str());
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m_dbRootPath.push_back( DbRootPath );
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m_dbRootPathMap[ oamRootList[idx] ] = DbRootPath;
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m_dbRootId.push_back( oamRootList[idx] );
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}
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}
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catch (exception&)
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{
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m_dbRootCount = 0;
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}
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}
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else
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{
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m_dbRootCount = 0;
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}
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// Update counter used to track changes to local PM DBRoot list
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if (!bFirstLoad)
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{
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if ((dbRootIdPrevious != m_dbRootId) ||
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(dbRootPathPrevious != m_dbRootPath))
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{
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fDBRootChangeCount++;
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}
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}
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// for (unsigned int n=0; n<m_dbRootPath.size(); n++)
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// {
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// std::cout << "dbrootpath: " << n << ". " << m_dbRootPath[n] <<std::endl;
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// }
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// for (unsigned int n=0; n<m_dbRootId.size(); n++)
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// {
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// std::cout << "dbrootId: " << n << ". " << m_dbRootId[n] << std::endl;
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// }
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// for (Config::intstrmap_t::iterator k=m_dbRootPathMap.begin();
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// k!=m_dbRootPathMap.end(); ++k)
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// {
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// std::cout << "dbrootmap: " << k->first << "," << k->second << std::endl;
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// }
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}
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/*******************************************************************************
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* DESCRIPTION:
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* Get db root count for local PM
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* PARAMETERS:
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* none
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* RETURN:
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* Number of DBRoot paths to be used for database files
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******************************************************************************/
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size_t Config::DBRootCount()
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{
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boost::mutex::scoped_lock lk(fCacheLock);
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checkReload( );
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return m_dbRootCount;
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}
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/*******************************************************************************
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* DESCRIPTION:
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* Get db root
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* PARAMETERS:
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* idx - Index of the DBRootn entry to fetch (0 fetches DBRoot[0],etc.)
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* RETURN:
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* DBRoot path for specified index
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******************************************************************************/
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std::string Config::getDBRootByIdx(unsigned idx)
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{
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boost::mutex::scoped_lock lk(fCacheLock);
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checkReload( );
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if (idx >= m_dbRootPath.size())
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{
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std::string emptyResult;
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return emptyResult;
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}
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return m_dbRootPath[idx];
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}
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/*******************************************************************************
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* DESCRIPTION:
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* Get db root path list for the local PM
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* PARAMETERS:
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* dbRootPathList - return list of DBRoot paths
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* RETURN:
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* none
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******************************************************************************/
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void Config::getDBRootPathList( std::vector<std::string>& dbRootPathList )
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{
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boost::mutex::scoped_lock lk(fCacheLock);
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checkReload( );
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dbRootPathList.clear();
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dbRootPathList = m_dbRootPath;
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}
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/*******************************************************************************
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* DESCRIPTION:
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* Get db root
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* PARAMETERS:
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* num - DBRootN entry to fetch (1 fetches DBRoot1, etc.)
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* RETURN:
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* DBRoot path for specified index
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******************************************************************************/
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std::string Config::getDBRootByNum(unsigned num)
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{
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boost::mutex::scoped_lock lk(fCacheLock);
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checkReload( );
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Config::intstrmap_t::const_iterator iter = m_dbRootPathMap.find( num );
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if (iter == m_dbRootPathMap.end())
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{
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std::string emptyResult;
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return emptyResult;
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}
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return iter->second;
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}
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/*******************************************************************************
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* DESCRIPTION:
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* Get list of applicable DBRoot ids for this job.
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* PARAMETERS:
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* N/A
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* RETURN:
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* The list of DBRoot ids
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******************************************************************************/
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void Config::getRootIdList( std::vector<uint16_t>& rootIds )
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{
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boost::mutex::scoped_lock lk(fCacheLock);
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checkReload( );
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rootIds = m_dbRootId;
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}
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/*******************************************************************************
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* DESCRIPTION:
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* Get bulk root
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* PARAMETERS:
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* none
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* RETURN:
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* NO_ERROR if success, other otherwise
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******************************************************************************/
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std::string Config::getBulkRoot()
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{
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boost::mutex::scoped_lock lk(fCacheLock);
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checkReload( );
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return m_bulkRoot;
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}
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#ifdef SHARED_NOTHING_DEMO_2
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void Config::getSharedNothingRoot(char* ret)
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{
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string root;
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boost::mutex::scoped_lock lk(m_bulkRoot_lk);
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root = config::Config::makeConfig()->getConfig(
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"WriteEngine", "SharedNothingRoot");
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strncpy(ret, root.c_str(), FILE_NAME_SIZE);
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}
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#endif
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/*******************************************************************************
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* DESCRIPTION:
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* Get wait period used between tries to get a transaction id.
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* PARAMETERS:
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* none
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* RETURN:
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* Wait Period in seconds
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******************************************************************************/
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int Config::getWaitPeriod()
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{
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boost::mutex::scoped_lock lk(fCacheLock);
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checkReload( );
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return m_WaitPeriod;
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}
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/*******************************************************************************
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* DESCRIPTION:
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* Get number of segment files per column partition.
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* PARAMETERS:
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* none
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* RETURN:
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* Number of files
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******************************************************************************/
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unsigned Config::getFilesPerColumnPartition()
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{
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boost::mutex::scoped_lock lk(fCacheLock);
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checkReload( );
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return m_FilesPerColumnPartition;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Get number of extents per column segment file
|
|
* PARAMETERS:
|
|
* none
|
|
* RETURN:
|
|
* Number of extents
|
|
******************************************************************************/
|
|
unsigned Config::getExtentsPerSegmentFile()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
checkReload( );
|
|
|
|
return m_ExtentsPerSegmentFile;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Get process priority for cpimport.bin process.
|
|
* Config file priority is in range 40..1 (highest..lowest)
|
|
* Return value is in range (-20..19)
|
|
*
|
|
* This range of values 40..1, and -20..19, matches the
|
|
* convention used by PrimProc and ExeMgr, so that we are
|
|
* consistent with those processes. Likewise we employ
|
|
* the same default priority of -1.
|
|
* PARAMETERS:
|
|
* none
|
|
* RETURN:
|
|
* cpimport.bin process priority
|
|
******************************************************************************/
|
|
int Config::getBulkProcessPriority()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
checkReload( );
|
|
|
|
return m_BulkProcessPriority;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Get bulk rollback directory path.
|
|
* PARAMETERS:
|
|
* none
|
|
******************************************************************************/
|
|
std::string Config::getBulkRollbackDir()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
checkReload( );
|
|
|
|
return m_BulkRollbackDir;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Get Max percentage of allowable file system disk usage for each DBRoot
|
|
* PARAMETERS:
|
|
* none
|
|
******************************************************************************/
|
|
unsigned Config::getMaxFileSystemDiskUsage()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
checkReload( );
|
|
|
|
return m_MaxFileSystemDiskUsage;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Get number of blocks to use in padding each compressed chunk (only
|
|
* applies to compressed columns).
|
|
* PARAMETERS:
|
|
* none
|
|
******************************************************************************/
|
|
unsigned Config::getNumCompressedPadBlks()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
checkReload( );
|
|
|
|
return m_NumCompressedPadBlks;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Get Parent OAM Module flag; are we running on active parent OAM node.
|
|
* PARAMETERS:
|
|
* none
|
|
******************************************************************************/
|
|
bool Config::getParentOAMModuleFlag()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
checkReload( );
|
|
|
|
return m_ParentOAMModuleFlag;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Get Module type (ex: "pm")
|
|
* PARAMETERS:
|
|
* none
|
|
******************************************************************************/
|
|
std::string Config::getLocalModuleType()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
checkReload( );
|
|
|
|
return m_LocalModuleType;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Get Module ID number (ex: 1)
|
|
* PARAMETERS:
|
|
* none
|
|
******************************************************************************/
|
|
uint16_t Config::getLocalModuleID()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
checkReload( );
|
|
|
|
return m_LocalModuleID;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Get version buffer root
|
|
* PARAMETERS:
|
|
* none
|
|
* RETURN:
|
|
* NO_ERROR if success, other otherwise
|
|
******************************************************************************/
|
|
std::string Config::getVBRoot()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
checkReload( );
|
|
|
|
return m_VersionBufferDir;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION:
|
|
* Has the DBRoot list for the local PM changed since the last time this
|
|
* function was called.
|
|
* PARAMETERS:
|
|
* none
|
|
* RETURN:
|
|
* returns TRUE if local DBRoot list has changed since the last call.
|
|
******************************************************************************/
|
|
bool Config::hasLocalDBRootListChanged()
|
|
{
|
|
boost::mutex::scoped_lock lk(fCacheLock);
|
|
|
|
if (fDBRootChangeCount > 0)
|
|
{
|
|
fDBRootChangeCount = 0;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
} //end of namespace
|