启动zabbix_server服务失败：__zbx_mem_realloc(): out of memory (requested 366104 bytes)
目录
一、缓存原因导致zabbix_server无法启动
（一）详细日志
6485:20220610:162901.568 Starting Zabbix Server. Zabbix 6.0.4 (revision 3d787ff402e).
6485:20220610:162901.568 ****** Enabled features ******
6485:20220610:162901.568 SNMP monitoring: YES
6485:20220610:162901.568 IPMI monitoring: NO
6485:20220610:162901.568 Web monitoring: YES
6485:20220610:162901.568 VMware monitoring: YES
6485:20220610:162901.568 SMTP authentication: YES
6485:20220610:162901.568 ODBC: NO
6485:20220610:162901.568 SSH support: NO
6485:20220610:162901.568 IPv6 support: YES
6485:20220610:162901.568 TLS support: YES
6485:20220610:162901.568 ******************************
6485:20220610:162901.568 using configuration file: /usr/local/etc/zabbix_server.conf
6485:20220610:162901.594 current database version (mandatory/optional): 06000000/06000000
6485:20220610:162901.594 required mandatory version: 06000000
6486:20220610:162901.605 starting HA manager
6486:20220610:162901.621 HA manager started in active mode
6485:20220610:162901.622 server #0 started [main process]
6487:20220610:162901.623 server #1 started [service manager #1]
6488:20220610:162901.624 server #2 started [configuration syncer #1]
6488:20220610:162902.744 __mem_malloc: skipped 11 asked 366104 skip_min 256 skip_max 298360
6488:20220610:162902.744 [file:dbconfig.c,line:89] __zbx_mem_realloc(): out of memory (requested 366104 bytes)
6488:20220610:162902.744 [file:dbconfig.c,line:89] __zbx_mem_realloc(): please increase CacheSize configuration parameter
6488:20220610:162902.744 === memory statistics for configuration cache ===
6488:20220610:162902.744 free chunks of size 24 bytes: 90
6488:20220610:162902.744 free chunks of size >= 256 bytes: 11
6488:20220610:162902.744 min chunk size: 24 bytes
6488:20220610:162902.744 max chunk size: 298360 bytes
6488:20220610:162902.745 memory of total size 29296400 bytes fragmented into 266104 chunks
6488:20220610:162902.745 of those, 422368 bytes are in 101 free chunks
6488:20220610:162902.745 of those, 28874032 bytes are in 266003 used chunks
6488:20220610:162902.745 of those, 4257648 bytes are used by allocation overhead
6488:20220610:162902.745 ================================
6488:20220610:162902.745 === Backtrace: ===
6488:20220610:162902.746 13: zabbix_server: configuration syncer [syncing configuration](zbx_backtrace+0x44) [0x58af34]
6488:20220610:162902.746 12: zabbix_server: configuration syncer [syncing configuration](__zbx_mem_realloc+0x228) [0x587998]
6488:20220610:162902.746 11: zabbix_server: configuration syncer [syncing configuration](zbx_hashset_reserve+0x9c) [0x58f48c]
6488:20220610:162902.746 10: zabbix_server: configuration syncer [syncing configuration](zbx_hashset_insert_ext+0x98) [0x58f5e8]
6488:20220610:162902.746 9: zabbix_server: configuration syncer [syncing configuration](DCfind_id+0x74) [0x53e694]
6488:20220610:162902.746 8: zabbix_server: configuration syncer [syncing configuration](DCsync_configuration+0x2df8) [0x543db8]
6488:20220610:162902.746 7: zabbix_server: configuration syncer [syncing configuration](dbconfig_thread+0xec) [0x45cecc]
6488:20220610:162902.746 6: zabbix_server: configuration syncer [syncing configuration](zbx_thread_start+0x34) [0x5965dc]
6488:20220610:162902.746 5: zabbix_server: configuration syncer [syncing configuration]() [0x4513d0]
6488:20220610:162902.746 4: zabbix_server: configuration syncer [syncing configuration](MAIN_ZABBIX_ENTRY+0x9e4) [0x45246c]
6488:20220610:162902.746 3: zabbix_server: configuration syncer [syncing configuration](daemon_start+0x1fc) [0x58ace4]
6488:20220610:162902.746 2: zabbix_server: configuration syncer [syncing configuration](main+0x44c) [0x44a01c]
6488:20220610:162902.746 1: /lib64/libc.so.6(__libc_start_main+0xe0) [0xfffe62a53fe0]
6488:20220610:162902.746 0: zabbix_server: configuration syncer [syncing configuration]() [0x450700]
6485:20220610:162902.748 One child process died (PID:6488,exitcode/signal:1). Exiting ...
6486:20220610:162902.748 HA manager has been paused
6486:20220610:162902.778 HA manager has been stopped
6485:20220610:162902.780 Zabbix Server stopped. Zabbix 6.0.4 (revision 3d787ff402e).
（二）看日志查找原因
关键报错：
[file:dbconfig.c,line:89] __zbx_mem_realloc(): out of memory (requested 366104 bytes)
6488:20220610:162902.744 [file:dbconfig.c,line:89] __zbx_mem_realloc(): please increase CacheSize configuration parameter
可以看出是缓存的原因，out of memory(requested 366104 bytes)
（三）解决方案
增加zabbix_server的缓存，please increase CacheSize configuration parameter
增加方法：
vim /usr/local/etc/zabbix_server.conf
#打开注释，增加到64M
CacheSize=64M