Forum Discussion

Leo's avatar
Leo
Icon for Nimbostratus rankNimbostratus
Jun 30, 2011

Clearing the cache

Hi everyone, sorry for the newbie question :)     I'm managing a BIG-IP 9.4....
dev
devops
iControl
Hugh123's avatar
Hugh123
Icon for Nimbostratus rankNimbostratus
Aug 18, 2011
Here is the code I have. I went down the route of attempting to ssh and do this, but it's rather difficult and not worth it. If you use the iControl API, it makes things much easier.

 

 

 
using iControl;

protected void GetRamCacheInfo(object sender, EventArgs e)
        {
            // Declare local variables
            LocalLBRAMCacheInformationRAMCacheKey prof_key = new LocalLBRAMCacheInformationRAMCacheKey();
            LocalLBRAMCacheInformationRAMCacheKey[] keys = new LocalLBRAMCacheInformationRAMCacheKey[] { prof_key };
            LocalLBRAMCacheInformationRAMCacheEntry[][] entries = null; 

            // Set other variables
            ipAddress = System.Configuration.ConfigurationManager.AppSettings["TestRamCacheClear"];
            
            user = GetUserID();            
            pass = TextBox1.Text;

            
            try
            {
                // Instantiate and initialize interface
                Interfaces m_interfaces = new Interfaces();
                m_interfaces.initialize(ipAddress, user, pass);

                // Set RamCache keys
                prof_key.host_name = "";              
                prof_key.maximum_responses = 500;
                prof_key.profile_name = profilesList.SelectedItem.ToString();  //--> I have this set to a drop down, could be text box, or list box
                prof_key.uri = "";

                
                if (m_interfaces.initialized)
                {
                    string[] HTTPinfo = m_interfaces.LocalLBProfileHttp.get_list();
                    entries = m_interfaces.LocalLBRAMCacheInformation.get_ramcache_entry(keys);
                    Entries.Visible = true;
                    entrieslbl.Text = entries[0].Length.ToString();

                    
                    for (int i = 0; i < HTTPinfo.Length; i++)
                    {
                        if (HTTPinfo[i] == prof_key.profile_name)
                        {
                            m_interfaces.LocalLBRAMCacheInformation.evict_ramcache_entry_v2(keys, false);
                        }
                    }

                    entries = m_interfaces.LocalLBRAMCacheInformation.get_ramcache_entry(keys);
                    if (entries[0].Length == 0)
                    {
                        RamCachelbl.Text = "RAM cache cleared";
                        RamCachelbl.ForeColor = Color.Green;
                    }
                    
                }
            }
            catch (Exception x)
            {
                RamCachelbl.Text = x.Message + "\nSTACK: " + x.StackTrace;
            }
        }