From 3eab7657f6826e36435fa18a8e95d9a35d14be5c Mon Sep 17 00:00:00 2001 From: Junxiao Bi Date: Tue, 22 Sep 2015 16:10:25 +0800 Subject: [PATCH] ocfs2: o2hb: add some user/debug log Oracle-bug: 21862940 Signed-off-by: Junxiao Bi Reviewed-by: Ryan Ding --- fs/ocfs2/cluster/heartbeat.c | 39 +++++++++++++++++++++++++++++------- 1 file changed, 32 insertions(+), 7 deletions(-) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 6c2a919c409a..35a084d9e914 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -291,6 +291,8 @@ struct o2hb_bio_wait_ctxt { int wc_error; }; +#define O2HB_NEGO_TIMEOUT_MS (O2HB_MAX_WRITE_TIMEOUT_MS/2) + enum { O2HB_NEGO_TIMEOUT_MSG = 1, O2HB_NEGO_APPROVE_MSG = 2, @@ -358,7 +360,7 @@ static void o2hb_arm_timeout(struct o2hb_region *reg) cancel_delayed_work(®->hr_nego_timeout_work); /* negotiate timeout must be less than write timeout. */ schedule_delayed_work(®->hr_nego_timeout_work, - msecs_to_jiffies(O2HB_MAX_WRITE_TIMEOUT_MS)/2); + msecs_to_jiffies(O2HB_NEGO_TIMEOUT_MS)); memset(reg->hr_nego_node_bitmap, 0, sizeof(reg->hr_nego_node_bitmap)); } @@ -392,14 +394,19 @@ static void o2hb_nego_timeout(struct work_struct *work) container_of(work, struct o2hb_region, hr_nego_timeout_work.work); unsigned long live_node_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)]; - int master_node, i; + int master_node, i, ret; o2hb_fill_node_map(live_node_bitmap, sizeof(live_node_bitmap)); /* lowest node as master node to make negotiate decision. */ master_node = find_next_bit(live_node_bitmap, O2NM_MAX_NODES, 0); if (master_node == o2nm_this_node()) { - set_bit(master_node, reg->hr_nego_node_bitmap); + if (!test_bit(master_node, reg->hr_nego_node_bitmap)) { + printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%s).\n", + o2nm_this_node(), O2HB_NEGO_TIMEOUT_MS/1000, + config_item_name(®->hr_item), reg->hr_dev_name); + set_bit(master_node, reg->hr_nego_node_bitmap); + } if (memcmp(reg->hr_nego_node_bitmap, live_node_bitmap, sizeof(reg->hr_nego_node_bitmap))) { /* check negotiate bitmap every second to do timeout @@ -411,6 +418,8 @@ static void o2hb_nego_timeout(struct work_struct *work) return; } + printk(KERN_NOTICE "o2hb: all nodes hb write hung, maybe region %s (%s) is down.\n", + config_item_name(®->hr_item), reg->hr_dev_name); /* approve negotiate timeout request. */ o2hb_arm_timeout(reg); @@ -420,13 +429,23 @@ static void o2hb_nego_timeout(struct work_struct *work) if (i == master_node) continue; - o2hb_send_nego_msg(reg->hr_key, + mlog(ML_HEARTBEAT, "send NEGO_APPROVE msg to node %d\n", i); + ret = o2hb_send_nego_msg(reg->hr_key, O2HB_NEGO_APPROVE_MSG, i); + if (ret) + mlog(ML_ERROR, "send NEGO_APPROVE msg to node %d fail %d\n", + i, ret); } } else { /* negotiate timeout with master node. */ - o2hb_send_nego_msg(reg->hr_key, O2HB_NEGO_TIMEOUT_MSG, - master_node); + printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%s), negotiate timeout with node %d.\n", + o2nm_this_node(), O2HB_NEGO_TIMEOUT_MS/1000, config_item_name(®->hr_item), + reg->hr_dev_name, master_node); + ret = o2hb_send_nego_msg(reg->hr_key, O2HB_NEGO_TIMEOUT_MSG, + master_node); + if (ret) + mlog(ML_ERROR, "send NEGO_TIMEOUT msg to node %d fail %d\n", + master_node, ret); } } @@ -437,6 +456,8 @@ static int o2hb_nego_timeout_handler(struct o2net_msg *msg, u32 len, void *data, struct o2hb_nego_msg *nego_msg; nego_msg = (struct o2hb_nego_msg *)msg->buf; + printk(KERN_NOTICE "o2hb: receive negotiate timeout message from node %d on region %s (%s).\n", + nego_msg->node_num, config_item_name(®->hr_item), reg->hr_dev_name); if (nego_msg->node_num < O2NM_MAX_NODES) set_bit(nego_msg->node_num, reg->hr_nego_node_bitmap); @@ -446,7 +467,11 @@ static int o2hb_nego_timeout_handler(struct o2net_msg *msg, u32 len, void *data, static int o2hb_nego_approve_handler(struct o2net_msg *msg, u32 len, void *data, void **ret_data) { - o2hb_arm_timeout((struct o2hb_region *)data); + struct o2hb_region *reg = (struct o2hb_region *)data; + + printk(KERN_NOTICE "o2hb: negotiate timeout approved by master node on region %s (%s).\n", + config_item_name(®->hr_item), reg->hr_dev_name); + o2hb_arm_timeout(reg); return 0; } -- 2.50.1