Graphite load & process data null since 27th:
http://tools.wmflabs.org/?status shows tools-exec-1213 Load: 0% Memory: 0% Free vmem: 12.1G
SSH connections fail:
12:07:50 0 ✓ zhuyifei1999@tools-bastion-02: ~$ ssh -vvv tools-exec-1213 OpenSSH_6.9p1 Ubuntu-2~trusty1, OpenSSL 1.0.1f 6 Jan 2014 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 20: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to tools-exec-1213 [10.68.17.252] port 22. debug1: Connection established. debug1: key_load_private_type: No such file or directory debug1: key_load_private_cert: Permission denied debug1: key_load_private_cert: Permission denied debug1: key_load_private_cert: Permission denied debug1: key_load_private_cert: Permission denied debug1: key_load_private_type: Permission denied debug1: key_load_private_type: Permission denied debug1: key_load_private_type: Permission denied debug1: key_load_private_type: Permission denied debug1: key_load_cert: No such file or directory debug1: key_load_cert: No such file or directory debug1: key_load_cert: No such file or directory debug1: key_load_cert: No such file or directory debug1: key_load_public: No such file or directory debug1: identity file /home/zhuyifei1999/.ssh/id_rsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/zhuyifei1999/.ssh/id_rsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/zhuyifei1999/.ssh/id_dsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/zhuyifei1999/.ssh/id_dsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/zhuyifei1999/.ssh/id_ecdsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/zhuyifei1999/.ssh/id_ecdsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/zhuyifei1999/.ssh/id_ed25519 type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/zhuyifei1999/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.9p1 Ubuntu-2~trusty1 ssh_exchange_identification: read: Connection reset by peer