linux/kernel/panic.c: pr_emerg("Kernel panic - not syncing: %s\n", buf);

When kernel panic happens, it will print the panic call stack, then the ending msg like:

[ 14.405869] Kernel panic - not syncing: Fatal exception in interrupt

some bug not cause kernel panic happens but also mean that job fails like:

mount.nfs: Connection timed out No space left on device

The above message would be detected, then send msg to mq queue to close job and reboot machine.

Signed-off-by: Li Ping 1477412247@qq.com --- src/monitoring/filter.cr | 2 +- src/monitoring/parse_serial_logs.cr | 47 +++++++++++++++++++++++++++-- 2 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/src/monitoring/filter.cr b/src/monitoring/filter.cr index 39cfbb6..b663f11 100644 --- a/src/monitoring/filter.cr +++ b/src/monitoring/filter.cr @@ -56,7 +56,7 @@ class Filter msg = JSON.parse(msg.to_s).as_h? return unless msg

- @sp.save_dmesg_to_result_root(msg) + @sp.deal_serial_log(msg) @hash.keys.each do |query| if match_query(query.as_h, msg) send_msg(query, msg) diff --git a/src/monitoring/parse_serial_logs.cr b/src/monitoring/parse_serial_logs.cr index 451312c..ff3b84a 100644 --- a/src/monitoring/parse_serial_logs.cr +++ b/src/monitoring/parse_serial_logs.cr @@ -4,6 +4,7 @@ require "../scheduler/elasticsearch_client" require "set" require "json" +require "../lib/mq"

# This parses dmesg in a stream of serial log, finding a number of patterns # in various places of the dmesg and take actions accordingly. @@ -40,9 +41,16 @@ class SerialParser "Restarting system", ]

+ CRASH_PATTERNS = [ + "mount.nfs: Connection timed out", + "No space left on device", + "Kernel panic - not syncing: ", + ] + def initialize @host2head = Hash(String, Array(String)).new @host2rt = Hash(String, String).new + @mq = MQClient.instance end

def host_in_msg(msg) @@ -51,7 +59,7 @@ class SerialParser File.basename(msg["serial_path"].to_s) end

- def detect_start_or_end(msg, pattern_list) + def detect_patterns(msg, pattern_list) message = msg["message"].to_s pattern_list.each do |pattern| matched = message.match(/.*(?<signal>#{pattern})/) @@ -60,17 +68,50 @@ class SerialParser end

def delete_host(msg, host, signal) - boundary_signal = detect_start_or_end(msg, signal) + boundary_signal = detect_patterns(msg, signal) return unless boundary_signal

@host2head.delete(host) @host2rt.delete(host) end

- def save_dmesg_to_result_root(msg) + def mq_publish(msg, host) + crash_signal = detect_patterns(msg, CRASH_PATTERNS) + return unless crash_signal + + job_id = "" + if @host2rt.has_key?(host) + job_id = File.basename(@host2rt[host]) + end + + mq_msg = { + "job_id" => job_id, + "testbox" => host, + "time" => msg["time"]? || Time.local.to_s("%Y-%m-%dT%H:%M:%S+0800"), + "job_state" => "crash" + } + spawn mq_publish_check("job_mq", mq_msg.to_json) + end + + def mq_publish_check(queue, msg) + 3.times do + @mq.publish_confirm(queue, msg) + break + rescue e + res = @mq.reconnect + sleep 5 + end + end + + def deal_serial_log(msg) host = host_in_msg(msg) return unless host

+ mq_publish(msg, host) + save_dmesg_to_result_root(msg, host) + end + + def save_dmesg_to_result_root(msg, host) delete_host(msg, host, START_PATTERNS)

check_save = check_save_dmesg(msg, host)