OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000d5580000, 715653120, 0) failed; error='Cannot allocate memory' (errno=12) # # There is insufficient memory for the Java Runtime Environment to continue. # Native memory allocation (mmap) failed to map 715653120 bytes for committing reserved memory. # An error report file with more information is saved as: # /opt/TongWeb7.0/bin/hs_err_pid2588233.log

This message indicates that the Java Virtual Machine (JVM) was unable to allocate enough memory for the Java Runtime Environment to continue running. The JVM attempted to allocate 715653120 bytes of memory, but was unable to do so due to insufficient memory on the system.

The error message also indicates that the JVM attempted to use the "mmap" function to allocate memory, but this operation failed. The error report file mentioned in the message may contain additional information about the error, including a stack trace that can help identify the root cause of the problem.

To resolve this issue, you can try the following:

1. Increase the amount of memory available to the JVM by using the -Xmx JVM option. For example, you can set the maximum heap size to 2 GB by adding the following option to your Java command line:

   java -Xmx2g your_program

2. Check the system memory usage and see if there is enough free memory available.

3. Reduce the amount of memory required by your program by optimizing your code or reducing the size of input data.

4. If the problem persists, you may need to consider upgrading the hardware or adding more memory to the system.