2 フェーズ コミットの一見単純な実装に問題が発生しています。私のセットアップは、Websphere 6.1 でホストされるアプリケーションである DB2 サーバー上の 2 つのデータベースです。アトミコスが取り扱う取引管理。jndi を介したデータベース接続。UserTransaction を開始し、DB1 で更新を実行し、DB2 への更新中に DB への接続を失い、ロールバックを呼び出すStaleConnectionExceptionを取得します。理想的には、TM はトランザクションのロールバックを実行する必要があります。ただし、次のように XAException が発生します。
[3/22/12 11:52:21:022 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_0.txt
[3/22/12 11:52:21:053 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_0.txt
[3/22/12 11:52:21:053 EDT] 00000023 WSRdbXaResour E DSRA0304E: XAException occurred. XAException contents and details are:
The DB2 Error message is : [jcc][t4][10335][11391][3.53.70] Invalid operation: Connection is closed. ERRORCODE=-4470, SQLSTATE=08003
The DB2 Error code is : -4470
The DB2 SQLState is : 08003
.
[3/22/12 11:52:21:053 EDT] 00000023 WSRdbXaResour E DSRA0302E: XAException occurred. Error code is: XAER_RMFAIL (-7). Exception is: [jcc][t4][10401][12066][3.53.70] XA exception: XAER_RMFAIL : [jcc][t4][10335][11391][3.53.70] Invalid operation: Connection is closed. ERRORCODE=-4470, SQLSTATE=08003 ERRORCODE=-4228, SQLSTATE=null
[3/22/12 11:52:21:085 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_1.txt
[3/22/12 11:52:21:100 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_1.txt
[3/22/12 11:52:21:116 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_2.txt
[3/22/12 11:52:21:163 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_2.txt
[3/22/12 11:52:21:194 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_3.txt
[3/22/12 11:52:21:225 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_3.txt
[3/22/12 11:52:21:256 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_4.txt
[3/22/12 11:52:21:288 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_4.txt
[3/22/12 11:52:21:288 EDT] 00000023 WSRdbXaResour E DSRA0304E: XAException occurred. XAException contents and details are:
The DB2 Error message is : [jcc][t4][2030][11211][3.53.70] A communication error occurred during operations on the connection's underlying socket, socket input stream,
or socket output stream. Error location: T4Agent.sendRequest(). Message: Connection reset by peer: socket write error. ERRORCODE=-4499, SQLSTATE=08001
The DB2 Error code is : -4499
The DB2 SQLState is : 08001
.
[3/22/12 11:52:21:288 EDT] 00000023 WSRdbXaResour E DSRA0302E: XAException occurred. Error code is: XA_RETRY (4). Exception is: [jcc][t4][10401][12066][3.53.70] XA exception: XA_RETRY : [jcc][t4][2030][11211][3.53.70] A communication error occurred during operations on the connection's underlying socket, socket input stream,
or socket output stream. Error location: T4Agent.sendRequest(). Message: Connection reset by peer: socket write error. ERRORCODE=-4499, SQLSTATE=08001 ERRORCODE=-4228, SQLSTATE=null
[3/22/12 11:52:21:288 EDT] 00000023 ConnectionEve A J2CA0056I: The Connection Manager received a fatal connection error from the Resource Adapter for resource jdbc/myDatasource1. The exception which was received is com.ibm.db2.jcc.b.po: [jcc][t4][10401][12066][3.53.70] XA exception: XA_RETRY : [jcc][t4][2030][11211][3.53.70] A communication error occurred during operations on the connection's underlying socket, socket input stream,
or socket output stream. Error location: T4Agent.sendRequest(). Message: Connection reset by peer: socket write error. ERRORCODE=-4499, SQLSTATE=08001 ERRORCODE=-4228, SQLSTATE=null:com.ibm.db2.jcc.b.tn: [jcc][t4][2030][11211][3.53.70] A communication error occurred during operations on the connection's underlying socket, socket input stream,
or socket output stream. Error location: T4Agent.sendRequest(). Message: Connection reset by peer: socket write error. ERRORCODE=-4499, SQLSTATE=08001:java.net.SocketException: Connection reset by peer: socket write error
[3/22/12 11:52:21:319 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_5.txt
[3/22/12 11:52:21:335 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_5.txt
[3/22/12 11:52:21:350 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_6.txt
[3/22/12 11:52:21:397 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_6.txt
[3/22/12 11:52:21:413 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_7.txt
[3/22/12 11:52:21:444 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_7.txt
[3/22/12 11:52:21:522 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_8.txt
[3/22/12 11:52:21:553 EDT] 00000023 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\SDP\runtimes\base_v61\profiles\was61profile1\logs\ffdc\server1_00000023_12.03.22_11.52.21_8.txt
[3/22/12 11:53:16:804 EDT] 00000023 SystemOut O Transaction Failed
[3/22/12 11:53:21:522 EDT] 0000000f InternalDB2Un I DSRA8203I: Database product name : DB2/NT
[3/22/12 11:53:21:522 EDT] 0000000f InternalDB2Un I DSRA8204I: Database product version : SQL09056
[3/22/12 11:53:21:522 EDT] 0000000f InternalDB2Un I DSRA8205I: JDBC driver name : IBM DB2 JDBC Universal Driver Architecture
[3/22/12 11:53:21:522 EDT] 0000000f InternalDB2Un I DSRA8206I: JDBC driver version : 3.53.70
[3/22/12 11:53:21:522 EDT] 0000000f InternalDB2Un I DSRA8212I: DataStoreHelper name is: com.ibm.websphere.rsadapter.DB2UniversalDataStoreHelper@150a150a.
[3/22/12 11:53:21:522 EDT] 0000000f WSRdbDataSour I DSRA8208I: JDBC driver type : 4
[3/22/12 11:53:21:585 EDT] 0000000f WSRdbXaResour E DSRA0304E: XAException occurred. XAException contents and details are: "".
[3/22/12 11:53:21:585 EDT] 0000000f WSRdbXaResour E DSRA0302E: XAException occurred. Error code is: XAER_NOTA (-4). Exception is: [jcc][t4][10401][12066][3.53.70] XA exception: XAER_NOTA ERRORCODE=-4228, SQLSTATE=null
この後、更新を行った DB1 テーブルは LOCKED になります。私は今まで次のことを試しましたが、まだロールバックを実行できません:
- クエリはコミットされていない読み取り ('ur') を使用しています
- 接続の自動コミットは false に設定され、IsolationLevel は *TRANSACTION_READ_UNCOMMITTED* に設定されます
- Datasource と Transaction Service のさまざまなタイムアウト値を増やしました。
- 接続プールの最小接続数を 0 に設定、パージ ポリシー: EntirePool
- StaleConnectionExceptionがキャッチされ、キャッチ ブロックから UserTransaction.rollback() が呼び出されます。
2 フェーズ コミットと XAtransactions を使用して DB クラッシュから回復するにはどうすればよいですか? これに対して何をすべきかについての指針はありますか？