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uCosminexus Application Server, Maintenance and Migration Guide
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The following table describes the event IDs, trace collection points, and PRF trace collection levels.
Table 8-105 Details of trace collection points in an OTS
| Event ID | No. in the figure# | Trace acquisition points | Level |
|---|---|---|---|
| 0x9400 | 1 | Immediately after a transaction is generated | A |
| 0x9401 | 2 | Immediately after the transaction status transits to MarkedRollback | A |
| 0x9402 | 3 | Immediately after the transaction status transits to Rollingback | A |
| 0x9403 | 12 | Immediately after the transaction concludes | A |
| 0x9404 | 4 | Immediately before the conclusion processing to javax.transaction.xa.XAResource | B |
| 0x9405 | 5 | Immediately after the conclusion processing to javax.transaction.xa.XAResource | B |
| 0x9406 | 6 | Immediately before the conclusion processing to a subordinate transaction | B |
| 0x9407 | 9 | Immediately after the conclusion processing to a subordinate transaction | B |
| 0x9408 | 7 | Immediately after receiving a request for conclusion processing from a superior transaction | B |
| 0x9409 | 8 | Immediately before replying to the request for conclusion processing from the superior transaction | B |
| 0x9410 | 13 | Immediately before acquiring the javax.transaction.xa.XAResource object | B |
| 0x9411 | 14 | Immediately after acquiring the javax.transaction.xa.XAResource object | B |
| 0x9412 | 10 | Immediately before writing into or reading from the status file | B |
| 0x9413 | 11 | Immediately after writing into or reading from the status file | B |
The following figure shows the trace collection points in an OTS.
Figure 8-61 Trace collection points from the generation of a transaction until its conclusion
![[Figure]](FIGURE/ZU073900.GIF)
Figure 8-62 Trace collection points related to reading or writing into the status file during the in-process OTS initialization
![[Figure]](FIGURE/ZU074000.GIF)
Figure 8-63 Trace collection points during the recovery process of javax.transaction.xa.Xid
![[Figure]](FIGURE/ZU074100.GIF)
Figure 8-64 Trace collection points in a typical one-phase commit model
![[Figure]](FIGURE/ZU074200.GIF)
Figure 8-65 Trace collection points in a typical two-phase commit model
![[Figure]](FIGURE/ZU074300.GIF)
Figure 8-66 PRF acquisition information during transaction linkage with OpenTP1
![[Figure]](FIGURE/ZU074310.GIF)
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