Hi Christopher,
On Wed, Sep 5, 2012 at 9:46 AM, Christopher Schultz < ch...@christopherschultz.net> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Shanti, > > On 9/4/12 3:18 PM, Shanti Suresh wrote: > > I would like to graph Tomcat's HeapMemoryUsage -> used mbean value > > for trending. I have installed Tomcat's manager application with a > > user belonging only to the "manager-jmx" role. I would like to use > > curl to get the data. I have a couple of questions: > > > > (1) I don't seem to be able to assign an empty password or > > otherwise no password to a user in "tomcat-users.xml". Or could > > I? > > What did you try? What happened when you tried that? > I still get the basic authentication dialog box. And typing an empty password, gives me an Unauthorized exception. > > > (2) How do I get just the "used" value from the composite > > HeapMemoryUsage mbean? I guess I could subsequently search for > > pattern "used=". But just curious if I could get the value > > directly. None of the following queries worked: > > > https://localhost:8453/manager/jmxproxy?qry=java.lang:type=Memory/HeapMemoryUsage > > > > > > https://localhost:8453/manager/jmxproxy?qry=java.lang:type=Memory/HeapMemoryUsage:used > > > https://localhost:8453/manager/jmxproxy?qry=java.lang:type=Memory/HeapMemoryUsage.used > > The > > > exact question you are asking is answered in an example of the > JMXProxy's "get" operation usage: > > http://tomcat.apache.org/tomcat-7.0-doc/manager-howto.html#JMX_Get_command > Oh my! Thank you! I remember reading that a while back but just missed it when in need. However, the syntax didn't produce the desired results. " https://hostname_fqdn:8453/manager/jmxproxy/?get=java.lang:type=Memory&att=HeapMemoryUsage&key=used"; ==> gives me the composite result back: OK - Attribute get 'java.lang:type=Memory' - HeapMemoryUsage= javax.management.openmbean.CompositeDataSupport(compositeType=javax.management.openmbean.CompositeType(name=java.lang.management.MemoryUsage,items=((itemName=committed,itemType=javax.management.openmbean.SimpleType(name=java.lang.Long)),(itemName=init,itemType=javax.management.openmbean.SimpleType(name=java.lang.Long)),(itemName=max,itemType=javax.management.openmbean.SimpleType(name=java.lang.Long)),(itemName=used,itemType=javax.management.openmbean.SimpleType(name=java.lang.Long)))),contents={committed=422940672, init=0, max=3087007744, used=116903640}) I will try some more. But I may be doing something wrong, perhaps? Thanks. -Shanti > - -chris > -----BEGIN PGP SIGNATURE----- > Version: GnuPG/MacGPG2 v2.0.17 (Darwin) > Comment: GPGTools - http://gpgtools.org > Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ > > iEYEARECAAYFAlBHV6EACgkQ9CaO5/Lv0PBvawCfS0UPId5r3QHubKNI81p+0Uo9 > oigAnA6SZdrc7uli5looMShWeHv1NuoH > =TdSs > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
