How to add logger tables

How to add logger tables

 - This article is a Work in Progress, and may be unfinished or missing sections.

Problem

Zimbra includes the logger service, that collects data from different servers for the state of the different services. If multiserver installation is in place, there must be only one logger server, and the rest of the server are viewed as clients. Each client and the logger server keep a database for the known servers in the setup, placed in SQLite3 database. Sometimes, due to power outage or different reasons, one or more tables might be missing. In this wiki we will see how to recreate tables from the logger DB.

Resolution

1. Enter the SQLite3 database:

$ sqlite3 /opt/zimbra/logger/db/data/logger.sqlitedb

2. Once inside confirm which tables exist:

sqlite> .tables
config           hosts            rrd_column_type  rrds

3. If tables are missing, recreate them with the following lines. For each table, copy and paste the text to the sqlite command line:

CREATE TABLE hosts (
       id           INTEGER PRIMARY KEY,
       dns_hostname VARCHAR(255) NOT NULL UNIQUE,
       zm_hostname  VARCHAR(255)
   );

CREATE TABLE config (
           version INTEGER NOT NULL UNIQUE
       );

CREATE TABLE rrds (
       id          INTEGER PRIMARY KEY,
       host_id     INTEGER NOT NULL REFERENCES hosts(id) ON DELETE CASCADE,
       col_name    VARCHAR(255) NOT NULL,
       col_name_19 VARCHAR(20) NOT NULL, -- due to rrd 19 char limit
       col_num     INTEGER NOT NULL,
       csv_file    VARCHAR(255) NOT NULL,
       rrd_file    INTEGER NOT NULL DEFAULT 0
   );

CREATE TABLE rrd_column_type (
           csv_file     varchar(255) not null,
           col_name     varchar(255) not null,
           -- G-AUGE, C-OUNTER, A-BSOLUTE or D-ERIVED
           col_type     char(1) not null,
           col_interval integer, col_unit varchar(64),
           CONSTRAINT unqcoltype UNIQUE (csv_file, col_name)
       );

Exit the db with:

.quit

4. Once recreated you can populate them with the /opt/zimbra/bin/zmloggerhostmap command line tool.

To add mapping use the -a switch at the end as follows:

/opt/zimbra/bin/zmloggerhostmap -a server1. domain.com  server1. domain.com

To delete use -d switch:

/opt/zimbra/bin/zmloggerhostmap -d server1. domain.com  server1. domain.com

The hostmap rely on correct values set in the hosts file, DNS and the zimbra hostname. You need to make sure all is correct for proper functioning.