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Top Forums UNIX for Advanced & Expert Users Nearly Random, Uncorrelated Server Load Average Spikes Post 303044138 by Neo on Saturday 15th of February 2020 02:28:08 AM
Old 02-15-2020
Next:

I have some old "cyberspace situational awareness" PHP code I used for a visualization project a few years ago, which captures and stores details information on web session activity; this code has proven handy identifying rouge bots in the past.

So, I have modified that code to capture and store detailed session information, including the number of hits per IP address, the user agent string, country code, etc. when the 1 minute load average is above 20 and less than 50.

Code:
$theload = getLoadAvg();
if (floatval($theload) > 20.0 && floatval($theload) < 50.0) 
{
  /// the old CSA code to parse web session activity and store the results in the DB
}

So, let's see what happens the next time we get a spike... this should be interesting.


Code:
mysql> describe neo_csa_session_manager;
+--------------+------------------+------+-----+---------+----------------+
| Field        | Type             | Null | Key | Default | Extra          |
+--------------+------------------+------+-----+---------+----------------+
| id           | int(11) unsigned | NO   | PRI | NULL    | auto_increment |
| user_id      | int(11)          | NO   | MUL | 0       |                |
| session_id   | varchar(255)     | NO   |     | NULL    |                |
| url          | text             | NO   |     | NULL    |                |
| ip_address   | varchar(45)      | NO   | MUL | NULL    |                |
| user_agent   | varchar(255)     | NO   |     | NULL    |                |
| bot_flag     | tinyint(1)       | NO   |     | 0       |                |
| robot_txt    | mediumint(6)     | NO   |     | 0       |                |
| sitemap      | mediumint(6)     | NO   |     | 0       |                |
| riskscore    | int(11)          | NO   |     | 0       |                |
| country_iso2 | varchar(2)       | NO   |     | UN      |                |
| country      | varchar(50)      | NO   |     | UNKNOWN |                |
| hitcount     | int(10) unsigned | NO   |     | 1       |                |
| firstseen    | bigint(11)       | NO   |     | NULL    |                |
| unixtime     | bigint(11)       | YES  |     | NULL    |                |
| longitude    | float            | NO   |     | 0       |                |
| latitude     | float            | NO   |     | 0       |                |
+--------------+------------------+------+-----+---------+----------------+
17 rows in set (0.00 sec)

This User Gave Thanks to Neo For This Post:
 

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GAMMU-SMSD-PGSQL(7)						       Gammu						       GAMMU-SMSD-PGSQL(7)

NAME
gammu-smsd-pgsql - gammu-smsd(1) backend using PostgreSQL database server as a message storage DESCRIPTION
PGSQL backend stores all data in a PostgreSQL database server, which parameters are defined by configuration (see gammu-smsdrc for descrip- tion of configuration options). For tables description see gammu-smsd-tables. This backend is based on gammu-smsd-sql. CONFIGURATION
Before running gammu-smsd you need to create necessary tables in the database, which is described below. The configuration file then can look like: [smsd] service = sql driver = native_pgsql host = localhost See also gammu-smsdrc CREATING TABLES
SQL script for creating tables in PostgreSQL database: -- -- Database: "smsd" -- -- CREATE USER "smsd" WITH NOCREATEDB NOCREATEUSER; -- CREATE DATABASE "smsd" WITH OWNER = "smsd" ENCODING = 'UTF8'; -- connect "smsd" "smsd" -- COMMENT ON DATABASE "smsd" IS 'Gammu SMSD Database'; -- -------------------------------------------------------- -- -- Function declaration for updating timestamps -- CREATE LANGUAGE plpgsql; CREATE OR REPLACE FUNCTION update_timestamp() RETURNS trigger AS $update_timestamp$ BEGIN NEW."UpdatedInDB" := LOCALTIMESTAMP(0); RETURN NEW; END; $update_timestamp$ LANGUAGE plpgsql; -- -------------------------------------------------------- -- -- Sequence declarations for tables' primary keys -- --CREATE SEQUENCE inbox_ID_seq; --CREATE SEQUENCE outbox_ID_seq; --CREATE SEQUENCE outbox_multipart_ID_seq; --CREATE SEQUENCE pbk_groups_ID_seq; --CREATE SEQUENCE sentitems_ID_seq; -- -------------------------------------------------------- -- -- Index declarations for tables' primary keys -- --CREATE UNIQUE INDEX inbox_pkey ON inbox USING btree ("ID"); --CREATE UNIQUE INDEX outbox_pkey ON outbox USING btree ("ID"); --CREATE UNIQUE INDEX outbox_multipart_pkey ON outbox_multipart USING btree ("ID"); --CREATE UNIQUE INDEX pbk_groups_pkey ON pbk_groups USING btree ("ID"); --CREATE UNIQUE INDEX sentitems_pkey ON sentitems USING btree ("ID"); -- -------------------------------------------------------- -- -- Table structure for table "daemons" -- CREATE TABLE daemons ( "Start" text NOT NULL, "Info" text NOT NULL ); -- -- Dumping data for table "daemons" -- -- -------------------------------------------------------- -- -- Table structure for table "gammu" -- CREATE TABLE gammu ( "Version" smallint NOT NULL DEFAULT '0' ); -- -- Dumping data for table "gammu" -- INSERT INTO gammu ("Version") VALUES(13); -- -------------------------------------------------------- -- -- Table structure for table "inbox" -- CREATE TABLE inbox ( "UpdatedInDB" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "ReceivingDateTime" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "Text" text NOT NULL, "SenderNumber" varchar(20) NOT NULL DEFAULT '', "Coding" varchar(255) NOT NULL DEFAULT 'Default_No_Compression', "UDH" text NOT NULL, "SMSCNumber" varchar(20) NOT NULL DEFAULT '', "Class" integer NOT NULL DEFAULT '-1', "TextDecoded" text NOT NULL DEFAULT '', "ID" serial PRIMARY KEY, "RecipientID" text NOT NULL, "Processed" boolean NOT NULL DEFAULT 'false', CHECK ("Coding" IN ('Default_No_Compression','Unicode_No_Compression','8bit','Default_Compression','Unicode_Compression')) ); -- -- Dumping data for table "inbox" -- -- -------------------------------------------------------- -- -- Create trigger for table "inbox" -- CREATE TRIGGER update_timestamp BEFORE UPDATE ON inbox FOR EACH ROW EXECUTE PROCEDURE update_timestamp(); -- -------------------------------------------------------- -- -- Table structure for table "outbox" -- CREATE TABLE outbox ( "UpdatedInDB" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "InsertIntoDB" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "SendingDateTime" timestamp NOT NULL DEFAULT LOCALTIMESTAMP(0), "SendBefore" time NOT NULL DEFAULT '23:59:59', "SendAfter" time NOT NULL DEFAULT '00:00:00', "Text" text, "DestinationNumber" varchar(20) NOT NULL DEFAULT '', "Coding" varchar(255) NOT NULL DEFAULT 'Default_No_Compression', "UDH" text, "Class" integer DEFAULT '-1', "TextDecoded" text NOT NULL DEFAULT '', "ID" serial PRIMARY KEY, "MultiPart" boolean NOT NULL DEFAULT 'false', "RelativeValidity" integer DEFAULT '-1', "SenderID" varchar(255), "SendingTimeOut" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "DeliveryReport" varchar(10) DEFAULT 'default', "CreatorID" text NOT NULL, CHECK ("Coding" IN ('Default_No_Compression','Unicode_No_Compression','8bit','Default_Compression','Unicode_Compression')), CHECK ("DeliveryReport" IN ('default','yes','no')) ); CREATE INDEX outbox_date ON outbox("SendingDateTime", "SendingTimeOut"); CREATE INDEX outbox_sender ON outbox("SenderID"); -- -- Dumping data for table "outbox" -- -- -------------------------------------------------------- -- -- Create trigger for table "outbox" -- CREATE TRIGGER update_timestamp BEFORE UPDATE ON outbox FOR EACH ROW EXECUTE PROCEDURE update_timestamp(); -- -------------------------------------------------------- -- -- Table structure for table "outbox_multipart" -- CREATE TABLE outbox_multipart ( "Text" text, "Coding" varchar(255) NOT NULL DEFAULT 'Default_No_Compression', "UDH" text, "Class" integer DEFAULT '-1', "TextDecoded" text DEFAULT NULL, "ID" serial, "SequencePosition" integer NOT NULL DEFAULT '1', PRIMARY KEY ("ID", "SequencePosition"), CHECK ("Coding" IN ('Default_No_Compression','Unicode_No_Compression','8bit','Default_Compression','Unicode_Compression')) ); -- -- Dumping data for table "outbox_multipart" -- -- -------------------------------------------------------- -- -- Table structure for table "pbk" -- CREATE TABLE pbk ( "ID" serial PRIMARY KEY, "GroupID" integer NOT NULL DEFAULT '-1', "Name" text NOT NULL, "Number" text NOT NULL ); -- -- Dumping data for table "pbk" -- -- -------------------------------------------------------- -- -- Table structure for table "pbk_groups" -- CREATE TABLE pbk_groups ( "Name" text NOT NULL, "ID" serial PRIMARY KEY ); -- -- Dumping data for table "pbk_groups" -- -- -------------------------------------------------------- -- -- Table structure for table "phones" -- CREATE TABLE phones ( "ID" text NOT NULL, "UpdatedInDB" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "InsertIntoDB" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "TimeOut" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "Send" boolean NOT NULL DEFAULT 'no', "Receive" boolean NOT NULL DEFAULT 'no', "IMEI" varchar(35) PRIMARY KEY NOT NULL, "Client" text NOT NULL, "Battery" integer NOT NULL DEFAULT -1, "Signal" integer NOT NULL DEFAULT -1, "Sent" integer NOT NULL DEFAULT 0, "Received" integer NOT NULL DEFAULT 0 ); -- -- Dumping data for table "phones" -- -- -------------------------------------------------------- -- -- Create trigger for table "phones" -- CREATE TRIGGER update_timestamp BEFORE UPDATE ON phones FOR EACH ROW EXECUTE PROCEDURE update_timestamp(); -- -------------------------------------------------------- -- -- Table structure for table "sentitems" -- CREATE TABLE sentitems ( "UpdatedInDB" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "InsertIntoDB" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "SendingDateTime" timestamp(0) WITHOUT time zone NOT NULL DEFAULT LOCALTIMESTAMP(0), "DeliveryDateTime" timestamp(0) WITHOUT time zone NULL, "Text" text NOT NULL, "DestinationNumber" varchar(20) NOT NULL DEFAULT '', "Coding" varchar(255) NOT NULL DEFAULT 'Default_No_Compression', "UDH" text NOT NULL, "SMSCNumber" varchar(20) NOT NULL DEFAULT '', "Class" integer NOT NULL DEFAULT '-1', "TextDecoded" text NOT NULL DEFAULT '', "ID" serial, "SenderID" varchar(255) NOT NULL, "SequencePosition" integer NOT NULL DEFAULT '1', "Status" varchar(255) NOT NULL DEFAULT 'SendingOK', "StatusError" integer NOT NULL DEFAULT '-1', "TPMR" integer NOT NULL DEFAULT '-1', "RelativeValidity" integer NOT NULL DEFAULT '-1', "CreatorID" text NOT NULL, CHECK ("Status" IN ('SendingOK','SendingOKNoReport','SendingError','DeliveryOK','DeliveryFailed','DeliveryPending', 'DeliveryUnknown','Error')), CHECK ("Coding" IN ('Default_No_Compression','Unicode_No_Compression','8bit','Default_Compression','Unicode_Compression')), PRIMARY KEY ("ID", "SequencePosition") ); CREATE INDEX sentitems_date ON sentitems("DeliveryDateTime"); CREATE INDEX sentitems_tpmr ON sentitems("TPMR"); CREATE INDEX sentitems_dest ON sentitems("DestinationNumber"); CREATE INDEX sentitems_sender ON sentitems("SenderID"); -- -- Dumping data for table "sentitems" -- -- -------------------------------------------------------- -- -- Create trigger for table "sentitems" -- CREATE TRIGGER update_timestamp BEFORE UPDATE ON sentitems FOR EACH ROW EXECUTE PROCEDURE update_timestamp(); Note You can find the script in docs/sql/pgsql.sql as well. UPGRADING TABLES
The easiest way to upgrade database structure is to backup old one and start with creating new one based on example above. For upgrading existing database, you can use changes described in smsd-tables-history and then manually update Version field in gammu ta- ble. AUTHOR
Michal iha <michal@cihar.com> COPYRIGHT
2009-2012, Michal iha <michal@cihar.com> 1.31.90 February 24, 2012 GAMMU-SMSD-PGSQL(7)
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