java - Distributed JMS based logging .. falling flat? -

-

in our fancy esb, logging of each request done via common infrastructure based on jms based logging. here happens in nutshell:

  1. service gets request service
  2. prepares data in logdata
  3. object service calls database
  4. time taken db interaction captured in logdata object
  5. service ready send response
  6. logdata object sent messaging destination
  7. service sends response

very rosey! yes paper architects. here actual issue: jms service provider becomes unavailable - due system level error or software crashes. service waits @ step (step no. 6) has make jms connection send logdata object. resulting in delayed response, leading bad performance , user experience.

so biggest shortcoming of "distributed logging using jms" touted lot of developer websites. note presance of logdata kind of critical non-functional requirement. means messages sent in persistent mode, leading wait until jms provider confirms receipt of message sender (the service in case) - blamed? immature design? are there success stories of implementing this?

doing logging in db/jms/socket/etc synchronously asking problems , lot of them.

implement logging memory , async. dump file/jms (depending if jms becomes available). single background thread should trick you. having sync. logging cause lot of trouble in totally unexpected , innocent portions of application.

i can't think of possible success story of sync. logging.

edit. preferrably use of concurrentlinkedqueue keep logdata (i mean avoid blocking, if possible improve perforamce/throughput)


Comments

Post a Comment

Popular posts from this blog

linux - Mailx and Gmail nss config dir -

-
i trying send mail linux command line using mailx command. can send local domain no problem want set mail send gmail account receive mail sent gmail account. after configuring mail.rc so: account gmail { set smtp=smtps://smtp.gmail.com:587 set smtp-auth=login set smtp-auth-user=username@gmail.com set smtp-auth-password=password set ssl-verify=ignore } i error: resolving host smtp.gmail.com . . . done. connecting 74.125.25.109 . . . connected. missing "nss-config-dir" variable. "/home/username/dead.letter" 11/354 . . . message not sent. after looking "nss-config-dir" here , located certn.db , keyn.db files , added mail.rc so: account gmail { set smtp=smtps://smtp.gmail.com:587 set smtp-auth=login set smtp-auth-user=username@gmail.com set smtp-auth-password=password set ssl-verify=ignore set nss-config-dir=/home/user/.mozilla/firefox/location.default } now when try send mail using command: echo "sent gmail account" | mailx -v -a
Read more

c# - Is it possible to remove an existing registration from Autofac container builder? -

-
something along lines: builder.registertype<mytype>().as<itype>(); builder.registertype<mytype2>().as<itype>(); builder.deregistertype<mytype>().as<itype>() var container = builder.build(); var types = container.resolve<ienumerable<itype>>(); assert.istrue(types.count == 1); assert.istrue(types[0].gettype == typeof(mytype2)); scenario: go through bunch of assemblies , go register types want make sure have 1 implementation of given type. need before create container. track on own nice if autofac me bit. this cannot done directly using containerbuilder , unless start on new one. mind you, having first built container should able construct new container filtering away unwanted types , reusing registrations first container. this: ... var container = builder.build(); builder = new containerbuilder(); var components = container.componentregistry.registrations .where(cr => cr.activator.limittype != typ
Read more

php - Mysql PK and FK char(36) vs int(10) -

-
i have read mysql can handle indexes , searches better if tables keys integers rather char(36) uuid's. is worth converting int(10)? note: use 1 server , have have plans use multiple databases concurrently therefore removing 1 of big reasons using uuid. our tables innodb if makes difference. thanks in advance. usually rdbms can handle integer keys pk more efficient, other datatypes. reason how build index column, yes: long dont require string (or other typed) keys, should use integers. however: char(36) , int(10) far away being equal, because int(10) much smaller, char(36). dont know, if require many different keys, should keep in mind. update, complete last paragraph: int(10) 32-bit, char(36) 36 - ^byte^ (= 288-bit). not mean, int consumes less space, means, char(36) has 4 times more different keys.
Read more