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Item gathering problems after database migration

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  • artemmiet
    Junior Member
    • Feb 2019
    • 1

    #1

    Item gathering problems after database migration

    Hi everyone!
    I use zabbix 3.4.4 with 10 proxies and 150 hosts , 15.000 items in summary. Zabbix-server and db(MariaDB) are on different servers.
    Several days ago I stopped zabbix-server, created exact copy of stopped DB on another server with rsync, and today I started zbx-server and new db server, but on the majority of proxies there are huge queues and no updates at all. Several proxies have 0 count in queues, but last check on all items under that proxy has a lag in 3-4 hours and its not catching up!
    All help will be appreciated, thanks in advance!

    My configs:

    /etc/zabbix/zabbix-server.conf
    ListenPort=10051
    LogFile=/var/log/zabbix/zabbix_server.log
    LogFileSize=0
    PidFile=/var/run/zabbix/zabbix_server.pid
    SocketDir=/var/run/zabbix
    DBHost=10.0.0.65
    DBName=zabbix
    DBUser=zabbix
    DBPassword=zabbix
    DBPort=3306
    StartPollers=100
    StartPreprocessors=100
    StartPollersUnreachable=100
    StartTrappers=100
    SNMPTrapperFile=/var/log/snmptrap/snmptrap.log
    HousekeepingFrequency=1
    CacheSize=512M
    ValueCacheSize=32M
    Timeout=30
    AlertScriptsPath=/usr/lib/zabbix/alertscripts
    ExternalScripts=/usr/lib/zabbix/externalscripts
    LogSlowQueries=3000

    /etc/my.conf
    [mysqld]
    datadir=/var/lib/mysql
    socket=/var/lib/mysql/mysql.sock
    symbolic-links=0
    innodb_file_per_table=1
    innodb_flush_method=O_DIRECT
    table_cache = 2048
    innodb_buffer_pool_size = 32G
    innodb_data_file_path=ibdata1:10M:autoextend
    query_cache_limit = 10M
    query_cache_size = 2048M
    default_storage_engine = InnoDB
    innodb_open_files = 12000
    innodb_io_capacity = 400
    innodb_flush_method = O_DIRECT
    innodb_lock_wait_timeout = 50
    innodb_flush_log_at_trx_commit = 2
    innodb_read_io_threads = 4
    innodb_write_io_threads = 2
    max_connections = 2000
    skip-external-locking
    skip-name-resolve
    slow_query_log_file = /var/log/mariadb/mysql-slow.log
    slow_query_log = 1
    long_query_time = 10
    log_queries_not_using_indexes
    innodb_buffer_pool_size=100M
    max_allowed_packet=1024M
    net_read_timeout=31536000
    net_write_timeout=31536000
    general_log_file = /var/log/mariadb/general.log
    general_log = 0
    [mysqld_safe]
    log-error=/var/log/mariadb/mariadb.log


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