Distribution: dp

Field

Mutable

Type

Explanation

version

no

string

The distribution version. Only ozengines with the same version can communicate.

clockTick

no

integer

The distribution subsystem is activated at least every clockTick milliseconds.

bufferSize

yes

integer

The size of the output and input buffers in bytes. For throughput-bound applications it should be large enough to keep the network utilized between invocations of the distribution subsystem.

probeInterval

yes

integer

How often probes are run in milliseconds.

probeTimeout

yes

integer

Time before a non responded ping defines temp in milliseconds.

openTimeout

yes

integer

Maximum time to wait for a response when establishing a connection.

closeTimeout

yes

integer

Maximum time to wait for a connection to close.

wfRemoteTimeout

yes

integer

Maximum time to wait for a remote peer to reopen a connection after being remotely closed due to lack of resources.

firewallReopenTimeout

yes

integer

Time to wait before reopening a connection after being remotely closed due to lack of resources when behind a firewall.

tcpHardLimit

yes

integer

Maximum number of simultaneous tcp connections.

tcpWeakLimit

yes

integer

Number of simultaneous tcp connections when stable. The difference between tcpHardLimit and tcpWeakLimit is used for accepts. If they are set equal, no further accepts will be made until some connection has been closed.

retryTimeFloor

yes

integer

Least time to wait before retrying a lost connection.

retryTimeCeiling

yes

integer

Longest time to wait before retrying a lost connection.

retryTimeFactor

yes

integer

Factor determining actual to wait before retrying a lost connection.

flowBufferSize

yes

integer

Experimental property for flowcontrol.

flowBufferTime

yes

integer

Experimental property for flowcontrol.

Some of these properties affect running connections and some affect only new ones. Running: tcp*Limit. New: probe*, retryTime*.

Default annotations: dp.annotation

Field

Mutable

Type

Explanation

port

yes

list of atoms

Default annotation for ports.

cell

yes

list of atoms

Default annotation for cells.

'lock'

yes

list of atoms

Default annotation for locks.

object

yes

list of atoms

Default annotation for objects (their immutable part).

state

yes

list of atoms

Default annotation for the state of objects (their mutable part).

array

yes

list of atoms

Default annotation for arrays.

dictionary

yes

list of atoms

Default annotation for dictionaries.

variable

yes

list of atoms

Default annotation for variables.

readonly

yes

list of atoms

Default annotation for read-only futures.

unusable

yes

list of atoms

Default annotation for unusables (sited resources).

chunk

yes

list of atoms

Default annotation for chunks.

'class'

yes

list of atoms

Default annotation for classes.

procedure

yes

list of atoms

Default annotation for procedures.

When setting default annotations, make sure that the annotation you give is complete and consistent with the corresponding type.


Denys Duchier, Leif Kornstaedt, Martin Homik, Tobias Müller, Christian Schulte and Peter Van Roy
Version 1.4.0 (20080702)