tomcat執行時異常“A fatal error has been detected by the Java Runtime Environment:”
阿新 • • 發佈：2019-01-09
背景
tomcat跑好好的，突然崩了。上線看log發現提示如下異常。
# # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00007f580dd5aa91, pid=5252, tid=140016395622144 # # JRE version: Java(TM) SE Runtime Environment (7.0_79-b15) (build 1.7.0_79-b15) # Java VM: Java HotSpot(TM) 64-Bit Server VM (24.79-b02 mixed mode linux-amd64 compressed oops) # Problematic frame: # C [libresolv.so.2+0x7a91] __libc_res_nquery+0x1c1 # # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again # An error report file with more information is saved as: # /tomcat8/hs_err_pid8935.log # # If you would like to submit a bug report, please visit: # http://bugreport.java.com/bugreport/crash.jsp # The crash happened outside the Java Virtual Machine in native code. # See problematic frame for where to report the bug. #
根據異常得知有個錯誤log。那我們就把這個log下載下來看看。上述為例log地址：/tomcat8/hs_err_pid8935.log
log關鍵部分內容
Stack: [0x00007f489251d000,0x00007f489261e000], sp=0x00007f489261a2e0, free space=1012k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) C [libresolv.so.2+0x7a91] __libc_res_nquery+0x1c1 C [libresolv.so.2+0x7fd1] __libc_res_nquerydomain+0xd1 Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) j java.net.Inet6AddressImpl.lookupAllHostAddr(Ljava/lang/String;)[Ljava/net/InetAddress;+0 j java.net.InetAddress$2.lookupAllHostAddr(Ljava/lang/String;)[Ljava/net/InetAddress;+4 j java.net.InetAddress.getAddressesFromNameService(Ljava/lang/String;Ljava/net/InetAddress;)[Ljava/net/InetAddress;+51 j java.net.InetAddress.getAllByName0(Ljava/lang/String;Ljava/net/InetAddress;Z)[Ljava/net/InetAddress;+29 j java.net.InetAddress.getAllByName(Ljava/lang/String;Ljava/net/InetAddress;)[Ljava/net/InetAddress;+383 j java.net.InetAddress.getAllByName(Ljava/lang/String;)[Ljava/net/InetAddress;+2 j java.net.InetAddress.getByName(Ljava/lang/String;)Ljava/net/InetAddress;+1 j java.net.InetSocketAddress.<init>(Ljava/lang/String;I)V+15 j sun.net.NetworkClient.doConnect(Ljava/lang/String;I)Ljava/net/Socket;+92 j sun.net.www.http.HttpClient.openServer(Ljava/lang/String;I)V+4 j sun.net.www.http.HttpClient.openServer()V+114 j sun.net.www.protocol.https.HttpsClient.<init>(Ljavax/net/ssl/SSLSocketFactory;Ljava/net/URL;Ljava/net/Proxy;I)V+122 j sun.net.www.protocol.https.HttpsClient.New(Ljavax/net/ssl/SSLSocketFactory;Ljava/net/URL;Ljavax/net/ssl/HostnameVerifier;Ljava/net/Proxy;ZILsun/net/www/protocol/http/HttpURLConnection;)Lsun/net/www/http/HttpClient;+355 j sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Ljava/net/URL;Ljava/net/Proxy;I)Lsun/net/www/http/HttpClient;+13 j sun.net.www.protocol.http.HttpURLConnection.plainConnect0()V+357 j sun.net.www.protocol.http.HttpURLConnection.plainConnect()V+71 j sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect()V+9 j sun.net.www.protocol.https.HttpsURLConnectionImpl.connect()V+4
上述問題得知是host問題。
解決方案：在/etc/hosts中加入本機ip名與本機的主機名的對映即可。
獲取主機名指令
hostname問題解決