fix case sensitivity of cyrillic ghe

[nominatim.git] / utils / update.php

diff --git a/utils/update.php b/utils/update.php
index eadd385136c1f22b9d87ccfcc3a732181691c2d4..c5fc14a672fa1dbc6f7e8f87066b023a70ce6947 100755 (executable)
--- a/utils/update.php
+++ b/utils/update.php
@@ -26,6 +26,7 @@
 
                array('import-file', '', 0, 1, 1, 1, 'realpath', 'Re-import data from an OSM file'),
                array('import-diff', '', 0, 1, 1, 1, 'realpath', 'Import a diff (osc) file from local file system'),
 
                array('import-file', '', 0, 1, 1, 1, 'realpath', 'Re-import data from an OSM file'),
                array('import-diff', '', 0, 1, 1, 1, 'realpath', 'Import a diff (osc) file from local file system'),

+               array('osm2pgsql-cache', '', 0, 1, 1, 1, 'int', 'Cache size used by osm2pgsql'),

 
                array('import-node', '', 0, 1, 1, 1, 'int', 'Re-import node'),
                array('import-way', '', 0, 1, 1, 1, 'int', 'Re-import way'),
 
                array('import-node', '', 0, 1, 1, 1, 'int', 'Re-import node'),
                array('import-way', '', 0, 1, 1, 1, 'int', 'Re-import way'),


@@ -48,6 +49,7 @@
 
        if (!isset($aResult['index-instances'])) $aResult['index-instances'] = 1;
        if (!isset($aResult['index-rank'])) $aResult['index-rank'] = 0;
 
        if (!isset($aResult['index-instances'])) $aResult['index-instances'] = 1;
        if (!isset($aResult['index-rank'])) $aResult['index-rank'] = 0;

+

 /*
        // Lock to prevent multiple copies running
        if (exec('/bin/ps uww | grep '.basename(__FILE__).' | grep -v /dev/null | grep -v grep -c', $aOutput2, $iResult) > 1)
 /*
        // Lock to prevent multiple copies running
        if (exec('/bin/ps uww | grep '.basename(__FILE__).' | grep -v /dev/null | grep -v grep -c', $aOutput2, $iResult) > 1)


@@ -67,9 +69,26 @@
        // Assume osm2pgsql is in the folder above
        $sBasePath = dirname(dirname(__FILE__));
 
        // Assume osm2pgsql is in the folder above
        $sBasePath = dirname(dirname(__FILE__));
 

+       date_default_timezone_set('Etc/UTC');
+

        $oDB =& getDB();
 
        $aDSNInfo = DB::parseDSN(CONST_Database_DSN);
        $oDB =& getDB();
 
        $aDSNInfo = DB::parseDSN(CONST_Database_DSN);

+       if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) $aDSNInfo['port'] = 5432;
+
+       // cache memory to be used by osm2pgsql, should not be more than the available memory
+       $iCacheMemory = (isset($aResult['osm2pgsql-cache'])?$aResult['osm2pgsql-cache']:2000);
+       if ($iCacheMemory + 500 > getTotalMemoryMB())
+       {
+               $iCacheMemory = getCacheMemoryMB();
+               echo "WARNING: resetting cache memory to $iCacheMemory\n";
+       }
+       $sOsm2pgsqlCmd = CONST_Osm2pgsql_Binary.' -klas -C '.$iCacheMemory.' -O gazetteer -d '.$aDSNInfo['database'].' -P '.$aDSNInfo['port'];
+       if (!is_null(CONST_Osm2pgsql_Flatnode_File))
+       {
+               $sOsm2pgsqlCmd .= ' --flat-nodes '.CONST_Osm2pgsql_Flatnode_File;
+       }
+

 
        $bFirst = true;
        $bContinue = $aResult['import-all'];
 
        $bFirst = true;
        $bContinue = $aResult['import-all'];


@@ -101,7 +120,7 @@
                        $sNextFile = $aResult['import-diff'];
                        if (!file_exists($sNextFile))
                        {
                        $sNextFile = $aResult['import-diff'];
                        if (!file_exists($sNextFile))
                        {

-                               echo "Cannot open $nextFile\n";
+                               echo "Cannot open $sNextFile\n";

                                exit;
                        }
                        // Don't update the import status - we don't know what this file contains
                                exit;
                        }
                        // Don't update the import status - we don't know what this file contains


@@ -112,7 +131,7 @@
                if (($aResult['import-hourly'] || $aResult['import-daily'] || isset($aResult['import-diff'])) && file_exists($sNextFile))
                {
                        // Import the file
                if (($aResult['import-hourly'] || $aResult['import-daily'] || isset($aResult['import-diff'])) && file_exists($sNextFile))
                {
                        // Import the file

-                       $sCMD = CONST_Osm2pgsql_Binary.' -klas -C 2000 -O gazetteer -d '.$aDSNInfo['database'].' '.$sNextFile;
+                       $sCMD = $sOsm2pgsqlCmd.' '.$sNextFile;

                        echo $sCMD."\n";
                        exec($sCMD, $sJunk, $iErrorLevel);
 
                        echo $sCMD."\n";
                        exec($sCMD, $sJunk, $iErrorLevel);
 


@@ -147,7 +166,7 @@
                }
                else
                {
                }
                else
                {

-                       $sModifyXMLstr = file_get_contents('http://overpass.osm.rambler.ru/cgi/interpreter?data=node('.$aResult['import-node'].');out%20meta;');
+                       $sModifyXMLstr = file_get_contents('http://overpass-api.de/api/interpreter?data=node('.$aResult['import-node'].');out%20meta;');

                }
        }
        if (isset($aResult['import-way']) && $aResult['import-way'])
                }
        }
        if (isset($aResult['import-way']) && $aResult['import-way'])


@@ -159,7 +178,7 @@
                }
                else
                {
                }
                else
                {

-                       $sCmd = 'http://overpass.osm.rambler.ru/cgi/interpreter?data=(way('.$aResult['import-way'].');node(w););out%20meta;';
+                       $sCmd = 'http://overpass-api.de/api/interpreter?data=(way('.$aResult['import-way'].');node(w););out%20meta;';

                }
                $sModifyXMLstr = file_get_contents($sCmd);
        }
                }
                $sModifyXMLstr = file_get_contents($sCmd);
        }


@@ -172,7 +191,7 @@
                }
                else
                {
                }
                else
                {

-                       $sModifyXMLstr = file_get_contents('http://overpass.osm.rambler.ru/cgi/interpreter?data=((rel('.$aResult['import-relation'].');way(r);node(w));node(r));out%20meta;');
+                       $sModifyXMLstr = file_get_contents('http://overpass-api.de/api/interpreter?data=((rel('.$aResult['import-relation'].');way(r);node(w));node(r));out%20meta;');

                }
        }
        if ($bModifyXML)
                }
        }
        if ($bModifyXML)


@@ -223,7 +242,7 @@
                }
 
                // import generated change file
                }
 
                // import generated change file

-               $sCMD = CONST_Osm2pgsql_Binary.' -klas -C 2000 -O gazetteer -d '.$aDSNInfo['database'].' '.$sTemporaryFile;
+               $sCMD = $sOsm2pgsqlCmd.' '.$sTemporaryFile;

                echo $sCMD."\n";
                exec($sCMD, $sJunk, $iErrorLevel);
                if ($iErrorLevel)
                echo $sCMD."\n";
                exec($sCMD, $sJunk, $iErrorLevel);
                if ($iErrorLevel)


@@ -235,6 +254,13 @@
 
        if ($aResult['deduplicate'])
        {
 
        if ($aResult['deduplicate'])
        {

+
+               $pgver = (float) CONST_Postgresql_Version;
+                if ($pgver < 9.3) {
+                       echo "ERROR: deduplicate is only currently supported in postgresql 9.3";
+                       exit;
+               }
+

                 $oDB =& getDB();
                 $sSQL = 'select partition from country_name order by country_code';
                 $aPartitions = $oDB->getCol($sSQL);
                 $oDB =& getDB();
                 $sSQL = 'select partition from country_name order by country_code';
                 $aPartitions = $oDB->getCol($sSQL);


@@ -257,15 +283,15 @@
                                var_dump($aTokenSet, $sSQL);
                                exit;
                        }
                                var_dump($aTokenSet, $sSQL);
                                exit;
                        }

-                       
+

                        $aKeep = array_shift($aTokenSet);
                        $iKeepID = $aKeep['word_id'];
 
                        foreach($aTokenSet as $aRemove)
                        {
                                $sSQL = "update search_name set";
                        $aKeep = array_shift($aTokenSet);
                        $iKeepID = $aKeep['word_id'];
 
                        foreach($aTokenSet as $aRemove)
                        {
                                $sSQL = "update search_name set";

-                               $sSQL .= " name_vector = (name_vector - ".$aRemove['word_id'].")+".$iKeepID.",";
-                               $sSQL .= " nameaddress_vector = (nameaddress_vector - ".$aRemove['word_id'].")+".$iKeepID;
+                               $sSQL .= " name_vector = array_replace(name_vector,".$aRemove['word_id'].",".$iKeepID."),";
+                               $sSQL .= " nameaddress_vector = array_replace(nameaddress_vector,".$aRemove['word_id'].",".$iKeepID.")";

                                $sSQL .= " where name_vector @> ARRAY[".$aRemove['word_id']."]";
                                $x = $oDB->query($sSQL);
                                if (PEAR::isError($x))
                                $sSQL .= " where name_vector @> ARRAY[".$aRemove['word_id']."]";
                                $x = $oDB->query($sSQL);
                                if (PEAR::isError($x))


@@ -275,7 +301,7 @@
                                }
 
                                $sSQL = "update search_name set";
                                }
 
                                $sSQL = "update search_name set";

-                               $sSQL .= " nameaddress_vector = (nameaddress_vector - ".$aRemove['word_id'].")+".$iKeepID;
+                               $sSQL .= " nameaddress_vector = array_replace(nameaddress_vector,".$aRemove['word_id'].",".$iKeepID.")";

                                $sSQL .= " where nameaddress_vector @> ARRAY[".$aRemove['word_id']."]";
                                $x = $oDB->query($sSQL);
                                if (PEAR::isError($x))
                                $sSQL .= " where nameaddress_vector @> ARRAY[".$aRemove['word_id']."]";
                                $x = $oDB->query($sSQL);
                                if (PEAR::isError($x))


@@ -285,7 +311,7 @@
                                }
 
                                $sSQL = "update location_area_country set";
                                }
 
                                $sSQL = "update location_area_country set";

-                               $sSQL .= " keywords = (keywords - ".$aRemove['word_id'].")+".$iKeepID;
+                               $sSQL .= " keywords = array_replace(keywords,".$aRemove['word_id'].",".$iKeepID.")";

                                $sSQL .= " where keywords @> ARRAY[".$aRemove['word_id']."]";
                                $x = $oDB->query($sSQL);
                                if (PEAR::isError($x))
                                $sSQL .= " where keywords @> ARRAY[".$aRemove['word_id']."]";
                                $x = $oDB->query($sSQL);
                                if (PEAR::isError($x))


@@ -297,8 +323,7 @@
                                foreach ($aPartitions as $sPartition)
                                {
                                        $sSQL = "update search_name_".$sPartition." set";
                                foreach ($aPartitions as $sPartition)
                                {
                                        $sSQL = "update search_name_".$sPartition." set";

-                                       $sSQL .= " name_vector = (name_vector - ".$aRemove['word_id'].")+".$iKeepID.",";
-                                       $sSQL .= " nameaddress_vector = (nameaddress_vector - ".$aRemove['word_id'].")+".$iKeepID;
+                                       $sSQL .= " name_vector = array_replace(name_vector,".$aRemove['word_id'].",".$iKeepID.")";

                                        $sSQL .= " where name_vector @> ARRAY[".$aRemove['word_id']."]";
                                        $x = $oDB->query($sSQL);
                                        if (PEAR::isError($x))
                                        $sSQL .= " where name_vector @> ARRAY[".$aRemove['word_id']."]";
                                        $x = $oDB->query($sSQL);
                                        if (PEAR::isError($x))


@@ -307,18 +332,8 @@
                                                exit;
                                        }
 
                                                exit;
                                        }
 

-                                       $sSQL = "update search_name_".$sPartition." set";
-                                       $sSQL .= " nameaddress_vector = (nameaddress_vector - ".$aRemove['word_id'].")+".$iKeepID;
-                                       $sSQL .= " where nameaddress_vector @> ARRAY[".$aRemove['word_id']."]";
-                                       $x = $oDB->query($sSQL);
-                                       if (PEAR::isError($x))
-                                       {
-                                               var_dump($x);
-                                               exit;
-                                       }
-

                                        $sSQL = "update location_area_country set";
                                        $sSQL = "update location_area_country set";

-                                       $sSQL .= " keywords = (keywords - ".$aRemove['word_id'].")+".$iKeepID;
+                                       $sSQL .= " keywords = array_replace(keywords,".$aRemove['word_id'].",".$iKeepID.")";

                                        $sSQL .= " where keywords @> ARRAY[".$aRemove['word_id']."]";
                                        $x = $oDB->query($sSQL);
                                        if (PEAR::isError($x))
                                        $sSQL .= " where keywords @> ARRAY[".$aRemove['word_id']."]";
                                        $x = $oDB->query($sSQL);
                                        if (PEAR::isError($x))


@@ -342,17 +357,24 @@
 
        if ($aResult['index'])
        {
 
        if ($aResult['index'])
        {

-               passthru(CONST_BasePath.'/nominatim/nominatim -i -d '.$aDSNInfo['database'].' -t '.$aResult['index-instances'].' -r '.$aResult['index-rank']);
+               passthru(CONST_BasePath.'/nominatim/nominatim -i -d '.$aDSNInfo['database'].' -P '.$aDSNInfo['port'].' -t '.$aResult['index-instances'].' -r '.$aResult['index-rank']);

        }
 
        if ($aResult['import-osmosis'] || $aResult['import-osmosis-all'])
        {
        }
 
        if ($aResult['import-osmosis'] || $aResult['import-osmosis-all'])
        {

+
+               if (strpos(CONST_Replication_Url, 'download.geofabrik.de') !== false && CONST_Replication_Update_Interval < 86400) {
+                       echo "Error: Update interval too low for download.geofabrik.de.  Please check install documentation (http://wiki.openstreetmap.org/wiki/Nominatim/Installation#Updates)\n";
+                       exit;
+               }
+

                $sImportFile = CONST_BasePath.'/data/osmosischange.osc';
                $sOsmosisCMD = CONST_Osmosis_Binary;
                $sOsmosisConfigDirectory = CONST_BasePath.'/settings';
                $sCMDDownload = $sOsmosisCMD.' --read-replication-interval workingDirectory='.$sOsmosisConfigDirectory.' --simplify-change --write-xml-change '.$sImportFile;
                $sImportFile = CONST_BasePath.'/data/osmosischange.osc';
                $sOsmosisCMD = CONST_Osmosis_Binary;
                $sOsmosisConfigDirectory = CONST_BasePath.'/settings';
                $sCMDDownload = $sOsmosisCMD.' --read-replication-interval workingDirectory='.$sOsmosisConfigDirectory.' --simplify-change --write-xml-change '.$sImportFile;

-               $sCMDImport = CONST_Osm2pgsql_Binary.' -klas -C 2000 -O gazetteer -d '.$aDSNInfo['database'].' '.$sImportFile;
-               $sCMDIndex = $sBasePath.'/nominatim/nominatim -i -d '.$aDSNInfo['database'].' -t '.$aResult['index-instances'];
+               $sCMDCheckReplicationLag = $sOsmosisCMD.' -q --read-replication-lag workingDirectory='.$sOsmosisConfigDirectory;
+               $sCMDImport = $sOsm2pgsqlCmd.' '.$sImportFile;
+               $sCMDIndex = $sBasePath.'/nominatim/nominatim -i -d '.$aDSNInfo['database'].' -P '.$aDSNInfo['port'].' -t '.$aResult['index-instances'];

                if (!$aResult['no-npi']) {
                        $sCMDIndex .= '-F ';
                }
                if (!$aResult['no-npi']) {
                        $sCMDIndex .= '-F ';
                }


@@ -370,11 +392,35 @@
 //                     {
                                if (!file_exists($sImportFile))
                                {
 //                     {
                                if (!file_exists($sImportFile))
                                {

-                                       // Use osmosis to download the file
+                                       // First check if there are new updates published (except for minutelies - there's always new diffs to process)
+                                       if ( CONST_Replication_Update_Interval > 60 )
+                                       {
+
+                                               unset($aReplicationLag);
+                                               exec($sCMDCheckReplicationLag, $aReplicationLag, $iErrorLevel); 
+                                               while ($iErrorLevel > 0 || $aReplicationLag[0] < 1)
+                                               {
+                                                       if ($iErrorLevel)
+                                                       {
+                                                               echo "Error: $iErrorLevel. ";
+                                                               echo "Re-trying: ".$sCMDCheckReplicationLag." in ".CONST_Replication_Recheck_Interval." secs\n";
+                                                       }
+                                                       else
+                                                       {
+                                                               echo ".";
+                                                       }
+                                                       sleep(CONST_Replication_Recheck_Interval);
+                                                       unset($aReplicationLag);
+                                                       exec($sCMDCheckReplicationLag, $aReplicationLag, $iErrorLevel); 
+                                               }
+                                               // There are new replication files - use osmosis to download the file
+                                               echo "\n".date('Y-m-d H:i:s')." Replication Delay is ".$aReplicationLag[0]."\n";
+                                       }
+                                       $fStartTime = time();

                                        $fCMDStartTime = time();
                                        echo $sCMDDownload."\n";
                                        exec($sCMDDownload, $sJunk, $iErrorLevel);
                                        $fCMDStartTime = time();
                                        echo $sCMDDownload."\n";
                                        exec($sCMDDownload, $sJunk, $iErrorLevel);

-                                       while ($iErrorLevel == 1)
+                                       while ($iErrorLevel > 0)

                                        {
                                                echo "Error: $iErrorLevel\n";
                                                sleep(60);
                                        {
                                                echo "Error: $iErrorLevel\n";
                                                sleep(60);


@@ -383,9 +429,10 @@
                                        }
                                        $iFileSize = filesize($sImportFile);
                                        $sBatchEnd = getosmosistimestamp($sOsmosisConfigDirectory);
                                        }
                                        $iFileSize = filesize($sImportFile);
                                        $sBatchEnd = getosmosistimestamp($sOsmosisConfigDirectory);

-                                       echo "Completed for $sBatchEnd in ".round((time()-$fCMDStartTime)/60,2)." minutes\n";

                                        $sSQL = "INSERT INTO import_osmosis_log values ('$sBatchEnd',$iFileSize,'".date('Y-m-d H:i:s',$fCMDStartTime)."','".date('Y-m-d H:i:s')."','osmosis')";
                                        $sSQL = "INSERT INTO import_osmosis_log values ('$sBatchEnd',$iFileSize,'".date('Y-m-d H:i:s',$fCMDStartTime)."','".date('Y-m-d H:i:s')."','osmosis')";

+                                       var_Dump($sSQL);

                                        $oDB->query($sSQL);
                                        $oDB->query($sSQL);

+                                       echo date('Y-m-d H:i:s')." Completed osmosis step for $sBatchEnd in ".round((time()-$fCMDStartTime)/60,2)." minutes\n";

                                }
 
                                $iFileSize = filesize($sImportFile);
                                }
 
                                $iFileSize = filesize($sImportFile);


@@ -398,12 +445,12 @@
                                if ($iErrorLevel)
                                {
                                        echo "Error: $iErrorLevel\n";
                                if ($iErrorLevel)
                                {
                                        echo "Error: $iErrorLevel\n";

-                                       exit;
+                                       exit($iErrorLevel);

                                }
                                }

-                               echo "Completed for $sBatchEnd in ".round((time()-$fCMDStartTime)/60,2)." minutes\n";

                                $sSQL = "INSERT INTO import_osmosis_log values ('$sBatchEnd',$iFileSize,'".date('Y-m-d H:i:s',$fCMDStartTime)."','".date('Y-m-d H:i:s')."','osm2pgsql')";
                                var_Dump($sSQL);
                                $oDB->query($sSQL);
                                $sSQL = "INSERT INTO import_osmosis_log values ('$sBatchEnd',$iFileSize,'".date('Y-m-d H:i:s',$fCMDStartTime)."','".date('Y-m-d H:i:s')."','osm2pgsql')";
                                var_Dump($sSQL);
                                $oDB->query($sSQL);

+                               echo date('Y-m-d H:i:s')." Completed osm2pgsql step for $sBatchEnd in ".round((time()-$fCMDStartTime)/60,2)." minutes\n";

 
                                // Archive for debug?
                                unlink($sImportFile);
 
                                // Archive for debug?
                                unlink($sImportFile);


@@ -413,15 +460,15 @@
 
                        // Index file
                        $sThisIndexCmd = $sCMDIndex;
 
                        // Index file
                        $sThisIndexCmd = $sCMDIndex;

+                       $fCMDStartTime = time();

 
                        if (!$aResult['no-npi'])
                        {
 
                        if (!$aResult['no-npi'])
                        {

-                               $fCMDStartTime = time();

                                $iFileID = $oDB->getOne('select nextval(\'file\')');
                                if (PEAR::isError($iFileID))
                                {
                                        echo $iFileID->getMessage()."\n";
                                $iFileID = $oDB->getOne('select nextval(\'file\')');
                                if (PEAR::isError($iFileID))
                                {
                                        echo $iFileID->getMessage()."\n";

-                                       exit;
+                                       exit(-1);

                                } 
                                $sFileDir = CONST_BasePath.'/export/diff/';
                                $sFileDir .= str_pad(floor($iFileID/1000000), 3, '0', STR_PAD_LEFT);
                                } 
                                $sFileDir = CONST_BasePath.'/export/diff/';
                                $sFileDir .= str_pad(floor($iFileID/1000000), 3, '0', STR_PAD_LEFT);


@@ -447,7 +494,7 @@
                                if ($iErrorLevel)
                                {
                                        echo "Error: $iErrorLevel\n";
                                if ($iErrorLevel)
                                {
                                        echo "Error: $iErrorLevel\n";

-                                       exit;
+                                       exit($iErrorLevel);

                                }
 
                                if (!$aResult['no-npi'])
                                }
 
                                if (!$aResult['no-npi'])


@@ -462,7 +509,7 @@
                                        if ($iErrorLevel)
                                        {
                                                echo "Error: $iErrorLevel\n";
                                        if ($iErrorLevel)
                                        {
                                                echo "Error: $iErrorLevel\n";

-                                               exit;
+                                               exit($iErrorLevel);

                                        }
 
                                        rename($sFileDir.'/'.str_pad($iFileID % 1000, 3, '0', STR_PAD_LEFT).".npi.out.bz2",
                                        }
 
                                        rename($sFileDir.'/'.str_pad($iFileID % 1000, 3, '0', STR_PAD_LEFT).".npi.out.bz2",


@@ -470,19 +517,28 @@
                                }
                        }
 
                                }
                        }
 

-                       echo "Completed for $sBatchEnd in ".round((time()-$fCMDStartTime)/60,2)." minutes\n";

                        $sSQL = "INSERT INTO import_osmosis_log values ('$sBatchEnd',$iFileSize,'".date('Y-m-d H:i:s',$fCMDStartTime)."','".date('Y-m-d H:i:s')."','index')";
                        $sSQL = "INSERT INTO import_osmosis_log values ('$sBatchEnd',$iFileSize,'".date('Y-m-d H:i:s',$fCMDStartTime)."','".date('Y-m-d H:i:s')."','index')";

+                       var_Dump($sSQL);

                        $oDB->query($sSQL);
                        $oDB->query($sSQL);

+                       echo date('Y-m-d H:i:s')." Completed index step for $sBatchEnd in ".round((time()-$fCMDStartTime)/60,2)." minutes\n";

 
                        $sSQL = "update import_status set lastimportdate = '$sBatchEnd'";
                        $oDB->query($sSQL);
 
                        $fDuration = time() - $fStartTime;
 
                        $sSQL = "update import_status set lastimportdate = '$sBatchEnd'";
                        $oDB->query($sSQL);
 
                        $fDuration = time() - $fStartTime;

-                       echo "Completed for $sBatchEnd in ".round($fDuration/60,2)."\n";
+                       echo date('Y-m-d H:i:s')." Completed all for $sBatchEnd in ".round($fDuration/60,2)." minutes\n";

                        if (!$aResult['import-osmosis-all']) exit;
 
                        if (!$aResult['import-osmosis-all']) exit;
 

-                       echo "Sleeping ".max(0,60-$fDuration)." seconds\n";
-                       sleep(max(0,60-$fDuration));
+                       if ( CONST_Replication_Update_Interval > 60 )
+                       {
+                               $iSleep = max(0,(strtotime($sBatchEnd)+CONST_Replication_Update_Interval-time()));
+                       }
+                       else
+                       {
+                               $iSleep = max(0,CONST_Replication_Update_Interval-$fDuration);
+                       }
+                       echo date('Y-m-d H:i:s')." Sleeping $iSleep seconds\n";
+                       sleep($iSleep);

                }
 
        }
                }
 
        }