Sun Java System Application Server Enterprise Edition 8.1 2005Q2 Administration Reference

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### Attributes

The following table describes attributes for the `transaction-service` element.

Table 1–155 `transaction-service` Attributes

Attribute | Default | Description
--- | --- | ---
`automatic-recovery` | `true` | (optional) If `true`, the server instance attempts transaction recovery during startup.
`timeout-in-seconds` | `0` | (optional) Specifies the amount of time after which the transaction is aborted. If set to `0`, the transaction never times out.
`tx-log-dir` | directory specified by the `log-root` attribute of the domain element | (optional) Specifies the parent directory of the transaction log directory `tx`. The directory in which the transaction logs are kept must be writable by the user account under which the server runs. A relative path is relative to the `log-root` attribute of the domain element.
`heuristic-decision` | `rollback` | (optional) If the outcome of a distributed transaction cannot be determined because other participants are unreachable, this property determines the outcome. Allowed values are `rollback` and `commit`.
`retry-timeout-in- seconds` | `600` | (optional) Determines the retry time in the following scenarios: At the transaction recovery time, if resources are unreachable. If there are any transient exceptions in the second phase of a two phase commit protocol. A negative value specifies infinite retries. A value of `0` (zero) specifies no retries. A positive value indicates the time after which a retry is attempted.
`keypoint-interval` | `2048` | (optional) Specifies the number of transactions between keypoint operations in the log. Keypoint operations reduce the size of the transaction log file by compressing it. A larger value for this attribute (for example, `4096`) results in a larger transaction log file, but fewer keypoint operations and potentially better performance. A smaller value (for example, `100`) results in smaller log files, but slightly reduced performance due to the greater frequency of keypoint operations.

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