ASP.NET アプリケーションで ERPConnect を使用していますが、ユーザーがアプリケーションを介して SAP に接続しようとすると、エラー メッセージが表示されることがあります。
CPIC-CALL: 'CMRCV : rc=19 LOCATION SAP-Gateway on host SERVERNAME / sapgw10 ERROR Conversation 53230591 not found TIME Wed Nov 16 13:49:58 2011 RELEASE 701 COMPONENT SAP-Gateway VERSION 2 RC 728 MODULE gwxxrd.c LINE 6278カウンター 1277701
ERPConnect を介して SAP への接続を開くと、常に発生します。
R3Connection connection = Connection;
connection.Open(); // the error occurs here
それはかなりランダムです。エラー メッセージがまったく表示されない日もあれば、1 日に 20 件のメッセージが表示される日もあります。ERPConnect は、System32 フォルダーで定義された librfc32.dll を使用し、バージョン 7200.1.39.6461 (これは最近のバージョンです) です。
この問題は、私のローカル開発マシン (Windows 7 x86) では発生しませんでした。これは常に、運用サーバー (Windows Server 2008 R2) で発生します。
この問題の原因は何ですか？
編集（エラーログの抽出を追加）：
* * LOCATION SAP-Gateway on host HERCULES / sapgw10 * ERROR partner 'hercules:sapgw01' not reached * * TIME Thu Nov 24 09:10:20 2011 * RELEASE 701 * COMPONENT NI (network interface) * VERSION 38 * RC -10 * MODULE nixxi.cpp * LINE 2835 * DETAIL NiPConnect2 * SYSTEM CALL connect * ERRNO 10061 * ERRNO TEXT WSAECONNREFUSED: Connection refused * COUNTER 1385122 * *****************************************************************************
GwTraceHdlInfo:
HANDLE = 137
TIME = Thu Nov 24 09:10:19 2011
SOCKET = 2108
STAT = NI_CONN_WAIT
TYPE = STREAM IPv4
OUT = 0 messages 0 bytes
IN = 0 messages 0 bytes
LOCAL = 0.0.0.0:1865
REMOTE = -
OPTIONS = BUFFERED
ni hdl = 137
type = CLIENT
net_stat = CONNECT_TO_REM_GW_PENDING
hostaddr = 100.100.103.15
accept_hostaddr = 100.100.103.15
opcode = NORMAL_CLIENT
conn opcode = REMOTE_GATEWAY
conn vers = 2
index = 10
data = 0000000000000000
ext_info = 000000000EF1D870
offset = 0
rest_len = 0
snc_forced = 0
remote gateway infos:
hostname =
hostaddr = 100.100.103.15
service = sapgw01
tpname = sapdp01
GwSelClear: clear RWC for hdl 137
NiICloseHandle: called for hdl 137 while waiting for connection
NiICloseHandle: shutdown and close hdl 137 / sock 2108
GwFreeHdlInfoMemory: free 000000000EF1D870 (ext info)
GwIFreeMemForLU_TP: freed memory for sys 10
GwListRemove: remove elem 10 from sys_r3_list
GwListRemove: 2 elems in sys_r3_list
GwListRemove: elem 10 not in sys_reg_list
GwListRemove: remove elem 10 from sys_inuse_list
GwListRemove: 104 elems in sys_inuse_list
GwUpdateClient: act_sys: 104
GwIDelR3Conn: send error message to client
GwSendRc3: send (appc_rc=CM_PRODUCT_SPECIFIC_ERROR / sap_rc=GW_CONNECT_FAILED) to client HERCULES / sapgw10 (0)
GwRqDpSendTo: (HERCULES / sapgw10, gw_id=0, appc_ca_blk=-1, len=335, comm_index=-1)
LOCK APPC ca_blk 3
DpGetCpicCommIdx: found index 3 via appc_hdr
found comm entry 3 (tid/uid/mode/conv_id/a_r: 158/13268/0/ /0)
GwIsAWaitingSWP: wp 1 waiting
GwSapWpWakeUp: send answer to sap wp 1
GwSapWpWakeUp: make wp 1 owner of appc_ca_blk 3
-OUT- tid -1 uid -1 mode 255
-OUT- appc_ca_blk 3 len 335 rq_id 43133
-OUT- wait_f_answ 0 cmd 0
NiIWrite: hdl 109 sent data (wrt=28,pac=1,MESG_IO)
GwIDelR3Conn: decrement conv_no of client 0: 5
GwFreeMemory: free 000000000EEF3480 (len=3700)
GwFreeMemory: act_overflow_size = 20352 (- 3700)
GwIDelR3Conn: idx/conv = ((-1/0) | (10/0)), delete conv 48 from conv-table
GwClearConn: conv_no/tcp_conv_no/sna_conv_no: 6/6/0
GwClearConn: free r3 conv info
GwClearConn: free buffer info
GwFiSearchConvId: deleted 27077110 local, conn=48
GwListInsert: insert elem 48 into conn_free_list (at begin)
GwListInsert: 494 elems in conn_free_list
GwListRemove: remove elem 48 from conn_search_list
GwListRemove: 0 elems in conn_search_list
GwListRemove: elem 48 not in conn_write_list
GwListRemove: remove elem 48 from conn_inuse_list
GwListRemove: 6 elems in conn_inuse_list
GwReadReqIndex: (process_id: -1)
GwReadReqIndex: no filled request-index-block
GwCheckClient: check clients
LOCK APPC ca_blk 4
GwCheckClient: raise timeout for conv 27059938 (intr/uid/mode/comm_idx=9/13261/0/90)
GwSendRcToDp: send appc_rc/sap_rc 10001/221 to dp
make DISP owner of appc_ca_blk 4
DpSemRq: key: 3, units: 1, timeout: -1
DpSemRel: key: 3, units: 1
DpRqPutIntoQueue: put request into queue (reqtype 0, prio LOW, rq_id 43134)
GwDispWakeUp: send wakeup with ni handle 2
NiIWrite: hdl 2 sent data (wrt=1,pac=1,MESG_IO)
-OUT- sender_id APPC_SERVER tid 165 wp_ca_blk -1 wp_id -1
-OUT- action SEND_TO_WP uid 13261 appc_ca_blk 4 type NOWP
-OUT- new_stat NO_CHANGE mode 0 len 80 rq_id 43134
GwListRemove: remove elem 90 from comm_wait_list
GwListRemove: 0 elems in comm_wait_list
GwListRemove: remove elem 90 from comm_wait_list
GwListRemove: 0 elems in comm_wait_list
編集 2: コード例を追加
少しコード例を作成しましたが、最後に 1 つの接続が開いたままになっていることに気付いた場合。例をもう一度開始すると、例の最後で 2 つの接続が開いたままになります。それで、何かがうまくいかない...
protected void SAP( object sender, EventArgs e ) {
ThreadStart threadStart1 = new ThreadStart( CreateSAP );
Thread thread = new Thread( threadStart1 );
Thread thread2 = new Thread( threadStart1 );
thread.Start();
Thread.Sleep( 2000 );
thread2.Start();
while ( thread2.IsAlive ) {
}
Response.Write( "done" );
}
private void CreateSAP() {
R3Connection conn = ERPConnection.Connection;
conn.MultithreadingEnvironment = true;
for ( int i = 0; i < 12; i++ ) {
try {
conn.Open();
Thread.Sleep( 1000 );
} finally {
conn.Close();
}
}
}