# zabbix_server -V
zabbix_server (Zabbix) 3.4.15

LogFile=/var/log/zabbix/zabbix_server.log

LogFileSize=100

PidFile=/var/run/zabbix/zabbix_server.pid

SocketDir=/var/run/zabbix

DBHost=localhost

DBName=zabbix

DBUser=zabbix

DBPassword=zabbix

VMwareCacheSize=512M

SNMPTrapperFile=/var/log/snmptrap/snmptrap.log

HousekeepingFrequency=1

MaxHousekeeperDelete=5000

CacheSize=1350M

StartDBSyncers=4

HistoryCacheSize=36M

HistoryIndexCacheSize=8M

TrendCacheSize=38M

ValueCacheSize=512M

Timeout=4

AlertScriptsPath=/usr/lib/zabbix/alertscripts

ExternalScripts=/usr/lib/zabbix/externalscripts

LogSlowQueries=3000

0.00" of type "string" is not suitable for value type "Numeric (float)"
122411:20190116:011858.552 __mem_malloc: skipped 2 asked 1699264 skip_min 441992 skip_max 965152
122411:20190116:011858.552 [file:dbcache.c,line:2800] zbx_mem_realloc(): out of memory (requested 1699264 bytes)
122411:20190116:011858.552 [file:dbcache.c,line:2800] zbx_mem_realloc(): please increase HistoryIndexCacheSize configuration parameter
122411:20190116:011858.552 === memory statistics for history index cache ===
122411:20190116:011858.552 free chunks of size >= 256 bytes: 2
122411:20190116:011858.552 min chunk size: 441992 bytes
122411:20190116:011858.552 max chunk size: 965152 bytes
122411:20190116:011858.552 memory of total size 8388208 bytes fragmented into 74810 chunks
122411:20190116:011858.552 of those, 1407144 bytes are in 2 free chunks
122411:20190116:011858.552 of those, 5784120 bytes are in 74808 used chunks
122411:20190116:011858.552 ================================
122411:20190116:011858.552 === Backtrace: ===
122411:20190116:011858.553 20: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](zbx_backtrace+0x35) [0x560f38c16889]
122411:20190116:011858.553 19: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](__zbx_mem_realloc+0x14d) [0x560f38c12909]
122411:20190116:011858.553 18: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0xb857e) [0x560f38be557e]
122411:20190116:011858.553 17: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0xeb6ba) [0x560f38c186ba]
122411:20190116:011858.553 16: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](zbx_binary_heap_insert+0x69) [0x560f38c18c00]
122411:20190116:011858.553 15: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0xb87e5) [0x560f38be57e5]
122411:20190116:011858.553 14: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0xb8e7b) [0x560f38be5e7b]
122411:20190116:011858.553 13: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](dc_flush_history+0x47) [0x560f38be54b5]
122411:20190116:011858.553 12: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0xb79e0) [0x560f38be49e0]
122411:20190116:011858.553 11: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0xb7c0c) [0x560f38be4c0c]
122411:20190116:011858.553 10: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](dc_add_history+0x2a5) [0x560f38be53df]
122411:20190116:011858.553 9: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0x8ba6d) [0x560f38bb8a6d]
122411:20190116:011858.553 8: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0x8baca) [0x560f38bb8aca]
122411:20190116:011858.553 7: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0x8d4ee) [0x560f38bba4ee]
122411:20190116:011858.553 6: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](preprocessing_manager_thread+0x3bc) [0x560f38bbabd8]
122411:20190116:011858.553 5: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](zbx_thread_start+0x37) [0x560f38c23e1d]
122411:20190116:011858.553 4: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](MAIN_ZABBIX_ENTRY+0xc41) [0x560f38b6dbce]
122411:20190116:011858.553 3: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](daemon_start+0x325) [0x560f38c160d6]
122411:20190116:011858.553 2: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](main+0x312) [0x560f38b6cf8b]
122411:20190116:011858.553 1: /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fa19d7b33d5]
122411:20190116:011858.554 0: /usr/sbin/zabbix_server: preprocessing manager #1 [queued 253, processed 32357 values, idle 4.759866 sec during 5.029157 sec](+0x346a9) [0x560f38b616a9]
122412:20190116:011858.560 cannot read preprocessing service request
122414:20190116:011858.560 cannot read preprocessing service request
122413:20190116:011858.560 cannot read preprocessing service request
122368:20190116:011858.560 One child process died (PID:122411,exitcode/signal:1). Exiting ...