IDM 7.3.0

HTTP I/O buffer

When HTTP I/O requests exceed the memory limit, caching switches to a temporary file. The following lines from boot.properties display the default values related to buffer size:

# initial size of the in-memory I/O buffer for HTTP requests
#openidm.temporarystorage.initialLength.bytes=8192

# maximum size of the in-memory I/O buffer for HTTP requests
#openidm.temporarystorage.memoryLimit.bytes=65536

# maximum size of the filesystem I/O buffer for HTTP requests, for when memoryLimit is exceeded
#openidm.temporarystorage.fileLimit.bytes=1073741824

# absolute directory path of filesystem I/O buffer for HTTP requests, and uses system property java.io.tmpdir by default
#openidm.temporarystorage.directory=/var/tmp
openidm.temporarystorage.initialLength.bytes

Initial size of the memory buffer in bytes.

Default: 8192 bytes (8 KB). Maximum: The value of openidm.temporarystorage.memoryLimit.bytes.

openidm.temporarystorage.memoryLimit.bytes

Maximum size of the in-memory I/O buffer for HTTP requests. When the memory buffer is full, the content is transferred to a temporary file.

Default: 65536 bytes (64 KB). Maximum: 2147483647 bytes (2 GB).

openidm.temporarystorage.fileLimit.bytes

Maximum size of the temporary storage file. If the downloaded file is larger than this value, IDM throws the exception HTTP 413 Payload Too Large.

Default: 1073741824 bytes (1 GB). Maximum: 2147483647 bytes (2 GB).

openidm.temporarystorage.directory

The absolute directory path of the filesystem I/O buffer for HTTP requests.

Default: The value of the system property java.io.tmpdir.

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