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10.2. Importing Large Numbers of Entries

When there are a large number of entries to be imported, the operating system itself may hit performance limits on what it allows the Directory Server to do. This is particularly true on x86 systems. This can cause import operations to fail because of resource constraints.
If necessary, set the system ulimit value to the maximum number of allows processes for the system user.
For example:
# ulimit -u 4096
Then run the import operation.