About fahimbfarook

fahimbfarook · ‎02-05-2015

Hi Aidan, I have one Virtual Server and there's no room add another. This VS receives requests for two host names (say www.one.mydomai.com and www.two.mydomai.com ). Also I have different applications deployed which are accessible from above domains (with different context roots). When app1 is under maintenance I want to put up maintenance page for "www.one.mydomai.com/app1" requests and other apps must be accessible during this time. Also I do not want to have maintenance-rules for each domain/ app combination, but one generic maintenance rule. So for this if theres any way to pass parameters to rules, I can have one maintenance rule which will accept the domain-name and app-name as parameters and put up the maintenance page. Appreciate your thoughts here. Thanks.

fahimbfarook · ‎01-30-2015

Is it possible to pass parameters for a rule. - i.e. Like we can provide init parameters for Java extensions? i.e. I need to set a flag depending on my application status and use that flag in my rule and do different actions.

fahimbfarook · ‎01-29-2015

I have two queries 1. I have one Virtual Server and there's no room add another. This VS receives requests for two host names (say www.one.mydomai.com and www.two.mydomai.com ). Also I have different applications deployed which are accessible from above domains (with different context rules). When app1 is under maintenance I want to put up maintenance page for "www.one.mydomai.com/app1" requests and other apps must be accessible during this time. Also I do not want to have maintenance-rules for each domain/ app combination, but one generic maintenance rule. What I'm thinking is to maintain an extra file like below. www.one.mydomai.com/app1=app1maintenance.html www.one.mydomai.com/app2=app2maintenance.html www.two.mydomai.com/app1=app1maintenance.html www.two.mydomai.com/app2=app2maintenance.html And from a rule put up the matching maintenance page like below. (psedo code) Read the extra property file above for each line # i.e. key=value if host-name + path contains key bring up the page - value Is there any better way to do this? 2. Is it possible to pass parameters for a rule. - i.e. Like we can provide init parameters for Java extensions?

fahimbfarook · ‎10-20-2014

I'am setting up a ZXTM reverse proxy (code below) in order to access an external site. $path = http.getPath(); $contents = resource.get("proxy.properties"); $proxyList = string.split( $contents, "\n" ); foreach( $prop in $proxyList ) { if( string.regexMatch( $prop, "(.+)=(.+):([0-9]+)" )) { $configuredPath = string.trim($1); if( string.startsWithI($path, $configuredPath)) { $host = string.unescape(string.trim($2)); http.setHeader( "Host", $host); $port = string.unescape(string.trim($3)); pool.use("PROXY", $host, $port); } } } Here the PROXY pool is a 'dummy' one and I have a proxy.properties file whose entries are of the format pathPattern=externalUrl This rule is working fine, however I cannot use this rule because the ZXTM box doesn't have connectivity to this external/public site. Therefore its suggested to use a proxy server ( i.e. proxy.company.com) for accessing this external site ( along with this rule.) My question is - is it possible to let ZXTM access a particular URL via a proxy server (To make connection to externalUrl via proxy.company.com - like we enable proxy settings for browsers)? Else is there any workaround?

fahimbfarook · ‎08-19-2014

Thanks Mark. Unfortunately I didn't find I suspect that it is the passive monitor which marked the node as down, and so it is the passive monitor which must recover it. in the manuals or traffic script guide. Is that true with latest versions of TM or its only for 9.4?

fahimbfarook · ‎08-19-2014

Thanks Aidan. Im using ZXTm v 9.4 and I have a Full HTTP monitor and Passive monitoring turned on. I did some testing and found that when a node is marked as 'failed' by PASSIVE monitoring, it cannot be marked as active by an active monitor (i.e. Full HTTP monitor) - once the same node is active again. Here's my test results. Removed Full Http (AM) monitor from pool. + Passive monitoring is ON Stopped the web server (i.e. only node in the pool) Sent a request to my app Passive monitor marked the node as failed. (Pool has no back-end nodes responding) (There are: 0 nodes available in the pool) Maintenance page shown Started the web server node Sent a request to my app Maintenance page shown - i.e. because I have - if( pool.activeNodes( $pool ) < 1 ) { show maintenance page } There are: 0 nodes available in the pool No active nodes for pool Added the Full Http (AM) monitor to the pool. Full HTTP monitor detected that the node is working Pool now has working nodes Sent a request to my app Still maintenance page shown There are: 0 nodes available in the pool No active nodes for pool Disabled passive monitoring for the pool. Sent a request to my app - and the home page is shown. Node XYZ: Node XYZ is working again So in summary when a node is marked as 'failed' by PM and then marked as 'active' by AM, pool.activenodes() still considers it as failed. Im not sure whether its as issue with this perticular version of ZXTM. Aidan, could you please help here. Thanks.

fahimbfarook · ‎08-18-2014

Hi, I'm using pool.activenodes() in my traffic script but for handling maintenance pages. Here;s my code: sub handleMaintenancePage( $pool, $page ) { if( pool.activeNodes( $pool ) < 1 ) { log.warn( "No active nodes for pool ". $pool ); $contents = resource.get( $page ); http.sendResponse( "200 OK", "text/html", $contents, "Pragma: no-cache\r\nCache-Control:no-cache\r\nExpires:0" ); } } When I brought down a node pool.activenodes() behaves correctly and and decrements the node count for the pool. But when the same node is brought up back, pool.activenodes() does not increment its count. Also I have set up HTTP monitors which work correctly and identify that the node above is active again. Appreciate if you could help here to understand pool.activenodes() behaviour. Thanks.

fahimbfarook · ‎02-25-2014

1. Hi, Im getting the following error from my zxtm error logs. style="width: 1115.14px; height: 259px;" width="1115"/> Not sure what needs to be done or the route cause. Can anyone help here to understand the issue here please. All my timeout values are within acceptable ranges. 2. I could find following different timeout setting in Pool Monitors and Virtual Servers. Which of these will be effective of applied both.? VS> style="width: 721.413px; height: 313px;" width="721"/> Pool Monitor style="width: 620px; height: 246px;"/> Thanks in advance.

fahimbfarook · ‎02-24-2014

Hi Jochen Maurer, Appreciate if you could calrify the following. As you said: "If you have setup this, STM will check your nodes every few seconds if this URL still returns OK, if not, the node will be marked as failed. then, within a rule (assigned to your vserver), you can check, if nodes for your pool are available if (pool.activenodes("yourpoolname") < 1 { http.sendresponse(....your maintenance message); } " However I saw a configuration under Virtual Server > Connection Management > Connection Error Settings: that we can configure an error page. I'm not quite sure whether configuring an error page (i.e. maintanace-page.html) here has the same effect as doing like the following if (pool.activenodes("yourpoolname") < 1 { http.sendRedirect("maintanace-page.html"); } Could you please shed some light on this

fahimbfarook · ‎02-11-2014

Appreciate if you could explain the following further. "And we implemented a custom-healthcheck, calling this page via http request, and checking if return body is OK. If there is a DB-Problem, all nodes will be disabled automatically,.." "custom-healthcheck" here means a custom health monitor which will run periodically? or a rule applied to the virtual server? Also cold you please provide some links/ resources on how to enable/ disable rules from external programs/ other scripts?

fahimbfarook · ‎02-10-2014

Hi, Is it possible to enable or disable a rule by a TrafficScript (some other rule) or external program. Infact my requirement is this. - I need to health check the DB periodically and if DB fails, I need to redirect requests to a maintenance page. In order to monitor the DB, I thought of writing an external program monitor which emits a custom-event if DB fails. Then I thought of writing a custom Alert/Action which is triggered by that custom-event and this action enables the maintenance page rule. Is this approach correct? Is there a better way for achieving the same? Thanks in Advance.

Re: Pass parameters for a rule

Pass parameters for a rule

Put up maintenance page based on host and context ...

Setting up a proxy for ZXTM

Re: pool.activenodes() is reliable?

Re: pool.activenodes() is reliable?

pool.activenodes() is reliable?

Trafficmanager timeout

Re: Enable a Rule from TrafficScript or External P...

Re: Enable a Rule from TrafficScript or External P...

Enable a Rule from TrafficScript or External Progr...