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  • 1.  Building Tomcat tcnative module on AIX

    Posted Tue April 06, 2021 03:41 AM
    Edited by Grant Cotton Tue April 06, 2021 04:02 AM
    I am attempting to get the HTTP/2 connector working in Tomcat9 on AIX (e.g. powerpc-ibm-aix7.2.5.0). This requires the tcnative module. Following the instructions here using tomcat-native-1.2.24-src that comes with Tomcat 9.0.37, along with APR 1.5.2, OpenSSL 1.0.2, IBM Java 1.8.0_261 i.e.

    $ export CFLAGS=-maix64
    $ ./configure --with-apr=/opt/freeware/bin/apr-1-config_64 --with-java-home=/app/java8_64/ --with-ssl=/usr/include/openssl --prefix=/app/tomcat

    followed by

    make && make install

    This creates the expected entries in /app/tomcat/lib, i.e.

    -rw-r--r-- 1 usrxxx grpxxxx 3440287 Mar 03 16:47 libtcnative-1.a
    -rwxr-xr-x 1 usrxxx grpxxxx 1057 Mar 03 16:47 libtcnative-1.la
    lrwxrwxrwx 1 usrxxx grpxxxx 23 Mar 03 16:47 libtcnative-1.so -> libtcnative-1.so.0.2.24
    lrwxrwxrwx 1 usrxxx grpxxxx 23 Mar 03 16:47 libtcnative-1.so.0 -> libtcnative-1.so.0.2.24
    -rwxr-xr-x 1 usrxxx grpxxxx 1372146 Mar 03 16:47 libtcnative-1.so.0.2.24

    but when Tomcat starts I get

    04-Mar-2021 15:30:00.752 WARNING [main] org.apache.catalina.core.AprLifecycleListener.init The Apache Tomcat Native library failed to load. The error reported was [tcnative-1 (Not found in java.library.path)]
    java.lang.UnsatisfiedLinkError: tcnative-1 (Not found in java.library.path)
    at java.lang.ClassLoader.loadLibraryWithPath(ClassLoader.java:1462)
    at java.lang.ClassLoader.loadLibraryWithClassLoader(ClassLoader.java:1414)
    at java.lang.System.loadLibrary(System.java:584)
    at org.apache.tomcat.jni.Library.<init>(Library.java:69)
    at org.apache.tomcat.jni.Library.initialize(Library.java:206)
    at org.apache.catalina.core.AprLifecycleListener.init(AprLifecycleListener.java:198)
    ...
    04-Mar-2021 15:30:01.096 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.library.path=/app/java8_64/jre/lib/ppc64/compressedrefs:/app/java8_64/jre/lib/ppc64:/app/java8_64/jre/lib/ppc64/j9vm:/app/java8_64/jre/lib/ppc64:/app/java8_64/jre/../lib/ppc64:/app/java8_64/jre/lib/icc:/opt/freeware/lib:/opt/freeware/lib64:/usr/lib:/usr/lib64:/app/tomcat/lib:/usr/lib64:/usr/lib
    ...
    04-Mar-2021 15:30:02.233 SEVERE [main] org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to initialize component [Connector[org.apache.coyote.http11.Http11AprProtocol-8443]] org.apache.catalina.LifecycleException: The configured protocol [org.apache.coyote.http11.Http11AprProtocol] requires the APR/native library which is not available
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:1024)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
    at org.apache.catalina.core.StandardService.initInternal(StandardService.java:533)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:1057)

    It may be a 64 vs 32 bit issue but the above configure and make only seems to build a 32 bit module:

    $ dump -H -X64 libtcnative-1.so.0.2.24

    libtcnative-1.so.0.2.24:
    dump: libtcnative-1.so.0.2.24: 0654-108 file is not valid in the current object file mode.
    Use the -X option to specify the desired object mode.

    $ dump -H -X32 libtcnative-1.so.0.2.24

    libtcnative-1.so.0.2.24:

    ***Loader Section***
    Loader Header Information
    VERSION# #SYMtableENT #RELOCent LENidSTR
    0x00000001 0x00000364 0x00000771 0x00000084

    #IMPfilID OFFidSTR LENstrTBL OFFstrTBL
    0x00000007 0x0000aacc 0x00006406 0x0000ab50


    ***Import File Strings***
    INDEX PATH BASE MEMBER
    0 /opt/freeware/lib:/usr/lib:/lib
    1 libssl.so
    2 libcrypto.so
    3 libapr-1.so
    4 libpthread.a shr_xpg5.o
    5 libc.a shr.o
    6 libgcc_s.a shr.o

    My AIX developer knowledge is very limited. Any thoughts on how to proceed?

    ------------------------------
    Grant Cotton
    ------------------------------


  • 2.  RE: Building Tomcat tcnative module on AIX

    Posted Tue April 06, 2021 03:46 AM
    Use "--with-apr=/opt/freeware/bin/apr-1-config_64" and export OBJECT_MODE=64. 


    ------------------------------
    Ayappan P
    ------------------------------

    Original Message


  • 3.  RE: Building Tomcat tcnative module on AIX

    Posted Tue April 06, 2021 04:02 AM
    Thanks. Actually have tried "--with-apr=/opt/freeware/bin/apr-1-config_64" before but not the "export OBJECT_MODE=64"

    but same outcome

    bash-5.0$ dump -H -X64 /app/tomcat/lib/libtcnative-1.so.0.2.24

    /app/iiq/tomcat/lib/libtcnative-1.so.0.2.24:
    dump: /app/iiq/tomcat/lib/libtcnative-1.so.0.2.24: 0654-108 file is not valid in the current object file mode.
    Use the -X option to specify the desired object mode.

    ------------------------------
    Grant Cotton
    ------------------------------

    Original Message