Kafka start error cannot allocate memory, which is not enough

Error hint:
Java Hotspot (TM) 64-bit Server VM warning:info:os::commit_memory (0x00000000c5330000, 986513408, 0) failed; er Ror= ' Cannot allocate memory ' (errno=12)
#
There are insufficient memory for the Java Runtime environment to Conti Nue.
# Native memory allocation (malloc) failed to allocate 986513408 bytes for committing reserved memory.
# A error report file with more information is saved as:
# hs_err_pid5535.log
Workaround:
kafka-server-start.sh C8/>export kafka_heap_opts= "-xmx1g-xms1g"
modified to
export kafka_heap_opts= "-xmx256m-xms128m"
because my memory is 1G

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