ViPR SRM NetApp Collector 失敗並顯示錯誤「無法擷取連線結果」

Summary: ViPR SRM NetApp Collector 幾天後失敗，並顯示「無法擷取連線結果」錯誤。

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Symptoms

SRM 收集器無法成功啟動。

從 SRM 3.7.x 升級至 SRM 4.0.3 版，並在 4.1 升級時繼續出現此問題。

NetApp 收集器每隔幾天就會停止一次。NetApp Collector 記錄顯示以下錯誤： 
WARNING -- [2017-05-22 10:06:37 CDT] -- RemoteCLICommandExecutor::getConnectionResults(): Connection result couldn't be retrieved.
java.util.concurrent.ExecutionException: java.io.IOException: com.watch4net.apg.ssh.api.exception.SSHException: com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: java.net.BindException: Address already in use (Bind failed)
Caused by: java.io.IOException: com.watch4net.apg.ssh.api.exception.SSHException: com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: java.net.BindException: Address already in use (Bind failed)
執行命令 ps  ef | grep 22 在發生問題的收集器主機上。NetApp Collector 使用連接埠 22 與 NetApp 裝置通訊。在這種情況下，共有 1322 個 TCP 連接具有 FIN_WAIT1: 
artoxxxxx-col:~ # netstat -ano | grep 22
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      off (0.00/0/0)
tcp        0  61369 xxx.xxx.xxx:50759    xxx.xxx.xxx.xxx:2010     FIN_WAIT1   unkn-4 (82.22/0/0)
tcp        0  61369 xxx.xxx.xxx:58959    xxx.xxx.xxx.xxx:2010     FIN_WAIT1   unkn-4 (82.22/0/0)
tcp        0  61369 xxx.xxx.xxx:56759    xxx.xxx.xxx.xxx:2010     FIN_WAIT1   unkn-4 (82.22/0/0)
tcp        0  61369 xxx.xxx.xxx:49959    xxx.xxx.xxx.xxx:2010     FIN_WAIT1   unkn-4 (82.22/0/0)
tcp        0  61369 xxx.xxx.xxx:59959    xxx.xxx.xxx.xxx:2010     FIN_WAIT1   unkn-4 (82.22/0/0)

Cause

TCP 連接數不斷增長，直到達到限制，並阻止收集器建立新的 TCP 連接以與其他設備通信。

Resolution

必須在主要後端重置防火牆才能解決此問題。

  1. SSH 進入 主要後端 伺服器，然後執行以下兩個命令：
/sbin/SuSEfirewall2 off

/sbin/SuSEfirewall2  on
  1. 完成後， SSH 進入 NetApp Collector 主機，然後執行下列命令 （ FIN_WAIT1 不應再看到連線）：
artxxxxxxx-col:~ # netstat -ano | grep 22
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      off (0.00/0/0)
tcp        0      0 127.0.0.1:40226         0.0.0.0:*               LISTEN      off (0.00/0/0)
tcp        0      0 xxx.xxx.xxx.xxx:60360    xxx.xxx.xxx.xxx:22       ESTABLISHED off (0.00/0/0)
tcp        0      0 xxx.xxx.xxx.xxx:36621    xxx.xxx.xxx.xxx:22       TIME_WAIT   timewait (45.94/0/0)
tcp        0      0 xxx.xxx.xxx.xxx:54396    xxx.xxx.xxx.xxx:22       ESTABLISHED off (0.00/0/0)
tcp        0      0 xxx.xxx.xxx.xxx:49135    xxx.xxx.xxx.xxx:22       TIME_WAIT   timewait (36.91/0/0)
tcp        0      0 xxx.xxx.xxx.xxx:37971    xxx.xxx.xxx.xxx:1521    ESTABLISHED off (0.00/0/0)
tcp        0      0 xxx.xxx.xxx.xxx:54553    xxx.xxx.xxx.xxx:22       TIME_WAIT   timewait (48.97/0/0)
tcp        0      0 xxx.xxx.xxx.xxx:41586    xxx.xxx.xxx.xxx:22       TIME_WAIT   timewait (12.27/0/0)

Affected Products

SRM
Article Properties
Article Number: 000057244
Article Type: Solution
Last Modified: 15 Oct 2025
Version:  3
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