Error Unable to allocate memory

[Pavel]

Hello! We began to fall JIra ver 8.8.1. I see in logs that message

OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000a9480000, 245891072, 0) failed; error='Невозможно выделить память' (errno=12)
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 245891072 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /tmp/hs_err_pid8686.log

meminfo

```

MemTotal: 4039484 kB
MemFree: 111196 kB
MemAvailable: 45944 kB
Buffers: 13700 kB
Cached: 91640 kB
SwapCached: 4536 kB
Active: 3127540 kB
Inactive: 638788 kB

```

cpuinfo

2 core

```

processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 6
model name : Common KVM processor
stepping : 1
microcode : 0x1
cpu MHz : 3292.526
cache size : 16384 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx lm constant_tsc nopl xtopology cpuid pni cx16 x2apic hypervisor lahf_lm cpuid_fault pti
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass
bogomips : 6585.05
clflush size : 64
cache_alignment : 128
address sizes : 40 bits physical, 48 bits virtual
power management:

```

Thank you

[Nic Brough -Adaptavist- · Accepted solution]

You have set your maximum "heap" size for the java virtual machine higher than your server actually has the memory for.

You should set your maximum heap to at least 1Gb lower than the physical memory of the server (unless you're using an optimised or lightweight operating system, you should be allowing at least 1Gb for most OS's.  Probably 2Gb if you're using something bloated or with poor resource allocation, like Windows)

[Pavel]

Thank you