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Special Forums UNIX and Linux Applications Infrastructure Monitoring Using Node-RED and MQTT to Monitor Server and Application Stats Post 303043733 by Neo on Wednesday 5th of February 2020 07:28:19 AM
Old 02-05-2020
Well, those changes did not help much.... looks like here is some "underground" process running every three hours causing the spikes:

Using Node-RED and MQTT to Monitor Server and Application Stats-screen-shot-2020-02-05-72457-pmjpg


I checked all the forum software and all the cron files on the server, but so far, no joy in finding the process causing the intermittent performance hit.
 

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MAXDB_GET_SERVER_VERSION(3)						 1					       MAXDB_GET_SERVER_VERSION(3)

maxdb_get_server_version - Returns the version of the MaxDB server as an integer

       Procedural style

SYNOPSIS
int maxdb_get_server_version (resource $link) DESCRIPTION
Object oriented style int$maxdb->server_version () The maxdb_get_server_version(3) function returns the version of the server connected to (represented by the $link parameter) as an inte- ger. The form of this version number is main_version * 10000 + minor_version * 100 + sub_version (i.e. version 7.5.0 is 70500). RETURN VALUES
An integer representing the server version. EXAMPLES
Example #1 Object oriented style <?php $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s ", maxdb_connect_error()); exit(); } /* print server version */ printf("Server version: %d ", $maxdb->server_version); /* close connection */ $maxdb->close(); ?> Example #2 Procedural style <?php $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s ", maxdb_connect_error()); exit(); } /* print server version */ printf("Server version: %d ", maxdb_get_server_version($link)); /* close connection */ maxdb_close($link); ?> The above example will output something similar to: Server version: 7<...> SEE ALSO
maxdb_get_client_info(3), maxdb_get_client_version(3), maxdb_get_server_info(3). PHP Documentation Group MAXDB_GET_SERVER_VERSION(3)
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