[mysqldumpslow出错]Diedat/usr/local/mysql/bin/mysqldumps

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[mysqldumpslow出错]Diedat/usr/local/mysql/bin/mysqldumps

[mysqldumpslow出错]Diedat/usr/local/mysql/bin/mysqldumps:[mysqldumpslow 报错] Died at /usr/local/mysql/bin/mysqldumpslow line 161, chunk 236. mysqldumpslow报错： Died at /usr/local/mysql/bin/mysqldumpslow line 161, chunk 236. 总结：是因为top数目太多

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导读[mysqldumpslow出错]Diedat/usr/local/mysql/bin/mysqldumps:[mysqldumpslow 报错] Died at /usr/local/mysql/bin/mysqldumpslow line 161, chunk 236. mysqldumpslow报错： Died at /usr/local/mysql/bin/mysqldumpslow line 161, chunk 236. 总结：是因为top数目太多

[mysqldumpslow 报错] Died at /usr/local/mysql/bin/mysqldumpslow line 161, chunk 236. mysqldumpslow报错： Died at /usr/local/mysql/bin/mysqldumpslow line 161, chunk 236. 总结：是因为top数目太多了，mysqldumpslow遍历不过来的缘故。 /usr/local/m

[mysqldumpslow 报错] Died at /usr/local/mysql/bin/mysqldumpslow line 161, <> chunk 236.

mysqldumpslow报错：Died at /usr/local/mysql/bin/mysqldumpslow line 161, <> chunk 236.总结：是因为top数目太多了，mysqldumpslow遍历不过来的缘故。

/usr/local/mysql/bin/mysqldumpslow -s -t 15 /root/db01-102-slow.log

1，把r去掉试试，还是报错，参数不识别。

[root@slave ]# /usr/local/mysql/bin/mysqldumpslow -s -t 15 /root/db01-102-slow.log 

Reading mysql slow query log from 15 /root/db01-102-slow.log
Can't open 15: 没有那个文件或目录 at /usr/local/mysql/bin/mysqldumpslow line 91.
Count: 22 Time=9.61s (211s) Lock=0.00s (0s) Rows=1.0 (22), [dubbo]@2hosts
 select count(*)
 from coupon_lot
 left join coupon 
 on coupon.coupon_lot_id = coupon_lot.coupon_lot_id
 LEFT JOIN brand
 ON brand.brand_id=coupon_lot.brand_id
 LEFT JOIN product_category
 on product_category.category_id=coupon_lot.category_id

Count: 177 Time=1.40s (247s) Lock=0.00s (0s) Rows=1.0 (177), [dubbo]@2hosts
 select count(*) from user_info
 LEFT JOIN system_region a
 ON province_id =a.region_id
 LEFT JOIN system_region b
 ON city_id = b.region_id
 LEFT JOIN system_region c
 ON district_id = c.region_id

Count: 22 Time=13.20s (290s) Lock=0.00s (0s) Rows=10.0 (220), [dubbo]@2hosts
 select 
 coupon_id, coupon_lot.coupon_lot_id, coupon_lot.remark,
 coupon.code, coupon_lot.coupon_type, coupon.state,
 coupon_lot.ckey, coupon_lot.cvalue, coupon_lot.discount, coupon_lot.type, coupon_lot.channel, 
 coupon_lot.is_reusable, coupon_lot.start_datetime,
 coupon_lot.end_datetime, coupon_lot.create_datetime, coupon.update_datetime ,coupon_lot.department,
 coupon_lot.state as couponLotState, coupon_lot.create_operator,coupon_lot.coupon_category,
 coupon_lot.pdt_code,brand.brand_name,product_category.category_name
 from coupon_lot
 left join coupon 
 on coupon.coupon_lot_id = coupon_lot.coupon_lot_id
 LEFT JOIN brand
 ON brand.brand_id=coupon_lot.brand_id
 LEFT JOIN product_category
 on product_category.category_id=coupon_lot.category_id
 group by coupon_lot.coupon_lot_id
 order by coupon_lot.create_datetime DESC
 limit N,N

Count: 8 Time=1.09s (8s) Lock=0.00s (0s) Rows=10.0 (80), [dubbo]@2hosts
 select 
 return_sn, relating_order_sn, return_from, oi.order_out_sn ,
 add_time , return_type, 
 return_pay, ui.usename as userName, return_consignee, return_goods_count ,
 return_total_fee, total_paid, 
 return_desc, return_order_status, return_pay_status ,
 return_shipping_status, order_return.lock_operator, order_return.return_invoice_no
 from order_return LEFT JOIN order_info oi
 on order_return.relating_order_sn = oi.order_sn 
 left join user_info ui on oi.user_id = ui.user_id
 left join order_payment on order_payment.order_sn = oi.order_sn
 order by order_return.add_time DESC
 limit N,N

Count: 1 Time=1.00s (1s) Lock=0.00s (0s) Rows=1.0 (1), root[root]@localhost
 select sleep(N)

Count: 1 Time=1.13s (1s) Lock=0.00s (0s) Rows=10.0 (10), [dubbo]@[xx]
 select 
 return_sn, relating_order_sn, return_from, oi.order_out_sn ,
 add_time , return_type, 
 return_pay, ui.usename as userName, return_consignee, return_goods_count ,
 return_total_fee, total_paid, 
 return_desc, return_order_status, return_pay_status ,
 return_shipping_status, order_return.lock_operator, order_return.return_invoice_no
 from order_return LEFT JOIN order_info oi
 on order_return.relating_order_sn = oi.order_sn 
 left join user_info ui on oi.user_id = ui.user_id
 left join order_payment on order_payment.order_sn = oi.order_sn
 order by order_return.add_time DESC
 , oi.order_sn 
 limit N,N

Count: 5 Time=2.47s (12s) Lock=0.00s (0s) Rows=0.0 (0), [dubbo]@2hosts
 select
 user_id, usename, nickname, password, user_group_id, realname, gender, email, mobilephone, 
 birthday, province_id, city_id, district_id, marry, income, remarks, create_datetime, 
 active_state, verityEmail, verityPhone, credit, last_login, last_ip, is_locked, channel, 
 tag, union_partner_uuid, union_user_safekey, is_black, qq, weibo_id, verity_email_key, 
 verity_phone_key, verity_email_datetime, verity_phone_datetime, verity_question, 
 verity_answer, cps_code, cps_time_from, cps_time_to, cps_cookie, first_channel
 from user_info where mobilephone = 'S' and (channel is null or trim(channel) ='S')

2，查看下mysqldumpslow 使用参数，-s后面需要带参数的，看了西夏at比较合适

[root@db-master-2 ~]# /usr/local/mysql/bin/mysqldumpslow --help
Usage: mysqldumpslow [ OPTS... ] [ LOGS... ]

Parse and summarize the MySQL slow query log. Options are

 --verbose verbose
 --debug debug
 --help write this text to standard output

 -v verbose
 -d debug
 -s ORDER what to sort by (al, at, ar, c, l, r, t), 'at' is default
 al: average lock time
 ar: average rows sent
 at: average query time
 c: count
 l: lock time
 r: rows sent
 t: query time 
 -r reverse the sort order (largest last instead of first)
 -t NUM just show the top n queries
 -a don't abstract all numbers to N and strings to 'S'
 -n NUM abstract numbers with at least n digits within names
 -g PATTERN grep: only consider stmts that include this string
 -h HOSTNAME hostname of db server for *-slow.log filename (can be wildcard),
 default is '*', i.e. match all
 -i NAME name of server instance (if using mysql.server startup script)
 -l don't subtract lock time from total time

3，在mysqldumpslow的-s后面加入 at参数试试： [root@slave ]# /usr/local/mysql/bin/mysqldumpslow -s at -t 15 /root/db01-102-slow.log

[root@db-master-2 ~]# /usr/local/mysql/bin/mysqldumpslow -s at -t 15 /root/db01-102-slow.log 
Reading mysql slow query log from /root/db01-102-slow.log
Count: 22 Time=13.20s (290s) Lock=0.00s (0s) Rows=10.0 (220), [dubbo]@2hosts
 select 
 coupon_id, coupon_lot.coupon_lot_id, coupon_lot.remark,
 coupon.code, coupon_lot.coupon_type, coupon.state,
 coupon_lot.ckey, coupon_lot.cvalue, coupon_lot.discount, coupon_lot.type, coupon_lot.channel, 
 coupon_lot.is_reusable, coupon_lot.start_datetime,
 coupon_lot.end_datetime, coupon_lot.create_datetime, coupon.update_datetime ,coupon_lot.department,
 coupon_lot.state as couponLotState, coupon_lot.create_operator,coupon_lot.coupon_category,
 coupon_lot.pdt_code,brand.brand_name,product_category.category_name
 from coupon_lot
 left join coupon 
 on coupon.coupon_lot_id = coupon_lot.coupon_lot_id
 LEFT JOIN brand
 ON brand.brand_id=coupon_lot.brand_id
 LEFT JOIN product_category
 on product_category.category_id=coupon_lot.category_id
 group by coupon_lot.coupon_lot_id
 order by coupon_lot.create_datetime DESC
 limit N,N

Count: 22 Time=9.61s (211s) Lock=0.00s (0s) Rows=1.0 (22), [dubbo]@2hosts
 select count(*)
 from coupon_lot
 left join coupon 
 on coupon.coupon_lot_id = coupon_lot.coupon_lot_id
 LEFT JOIN brand
 ON brand.brand_id=coupon_lot.brand_id
 LEFT JOIN product_category
 on product_category.category_id=coupon_lot.category_id

Count: 5 Time=2.47s (12s) Lock=0.00s (0s) Rows=0.0 (0), [dubbo]@2hosts
 select
 user_id, usename, nickname, password, user_group_id, realname, gender, email, mobilephone, 
 birthday, province_id, city_id, district_id, marry, income, remarks, create_datetime, 
 active_state, verityEmail, verityPhone, credit, last_login, last_ip, is_locked, channel, 
 tag, union_partner_uuid, union_user_safekey, is_black, qq, weibo_id, verity_email_key, 
 verity_phone_key, verity_email_datetime, verity_phone_datetime, verity_question, 
 verity_answer, cps_code, cps_time_from, cps_time_to, cps_cookie, first_channel
 from user_info where mobilephone = 'S' and (channel is null or trim(channel) ='S')

Count: 177 Time=1.40s (247s) Lock=0.00s (0s) Rows=1.0 (177), [dubbo]@2hosts
 select count(*) from user_info
 LEFT JOIN system_region a
 ON province_id =a.region_id
 LEFT JOIN system_region b
 ON city_id = b.region_id
 LEFT JOIN system_region c
 ON district_id = c.region_id

Count: 1 Time=1.13s (1s) Lock=0.00s (0s) Rows=10.0 (10), [dubbo]@[10.10.3.8]
 select 
 return_sn, relating_order_sn, return_from, oi.order_out_sn ,
 add_time , return_type, 
 return_pay, ui.usename as userName, return_consignee, return_goods_count ,
 return_total_fee, total_paid, 
 return_desc, return_order_status, return_pay_status ,
 return_shipping_status, order_return.lock_operator, order_return.return_invoice_no
 from order_return LEFT JOIN order_info oi
 on order_return.relating_order_sn = oi.order_sn 
 left join user_info ui on oi.user_id = ui.user_id
 left join order_payment on order_payment.order_sn = oi.order_sn
 order by order_return.add_time DESC
 , oi.order_sn 
 limit N,N

Count: 8 Time=1.09s (8s) Lock=0.00s (0s) Rows=10.0 (80), [dubbo]@2hosts
 select 
 return_sn, relating_order_sn, return_from, oi.order_out_sn ,
 add_time , return_type, 
 return_pay, ui.usename as userName, return_consignee, return_goods_count ,
 return_total_fee, total_paid, 
 return_desc, return_order_status, return_pay_status ,
 return_shipping_status, order_return.lock_operator, order_return.return_invoice_no
 from order_return LEFT JOIN order_info oi
 on order_return.relating_order_sn = oi.order_sn 
 left join user_info ui on oi.user_id = ui.user_id
 left join order_payment on order_payment.order_sn = oi.order_sn
 order by order_return.add_time DESC
 limit N,N

Count: 1 Time=1.00s (1s) Lock=0.00s (0s) Rows=1.0 (1), root[root]@localhost
 select sleep(N)

Died at /usr/local/mysql/bin/mysqldumpslow line 161, <> chunk 236.

看到后面还是报错：Died at /usr/local/mysql/bin/mysqldumpslow line 161, <> chunk 236.

4，去看看/usr/local/mysql/bin/mysqldumpslow的第161行左右，到底是在操作什么脚本。

156 my @sorted = sort { $stmt{$b}->{$opt{s}} <=> $stmt{$a}->{$opt{s}} } keys %stmt;
157 @sorted = @sorted[0 .. $opt{t}-1] if $opt{t};
158 @sorted = reverse @sorted if $opt{r};
159 
160 foreach (@sorted) {
161 my $v = $stmt{$_} || die;
162 my ($c, $t,$at, $l,$al, $r,$ar) = @{ $v }{qw(c t at l al r ar)};
163 my @users = keys %{$v->{users}};
164 my $user = (@users==1) ? $users[0] : sprintf "%dusers",scalar @users;
165 my @hosts = keys %{$v->{hosts}};
166 my $host = (@hosts==1) ? $hosts[0] : sprintf "%dhosts",scalar @hosts;
167 printf "Count: %d Time=%.2fs (%ds) Lock=%.2fs (%ds) Rows=%.1f (%d), $user\@$host\n%s\n\n",
168 $c, $at,$t, $al,$l, $ar,$r, $_;
169 }
170 
171 sub usage {
172 my $str= shift;

看到主要是foreach (@sorted)遍历函数，也就是遍历到chunk 236的时候就died结束了，没有办法往下继续foreach了。因为以前写过代码，知道报错所在的这一行

 my $v = $stmt{$_} || die;

是遍历第一句，那么肯定是赋值语句，报错Died，chunk 236肯定是已经遍历到末尾没有数据了，看这个函数没有判断传入的参数是否为null的逻辑，所以当文件数据已经遍历完，但是命令还没有结束，所以继续遍历，遍历null的时候报错，所以进程中止了，解决办法就是做个限制不要遍历超过原始数据的字符串长度。那么我们再来看执行的命令:

/usr/local/mysql/bin/mysqldumpslow -s at -t 15 /root/db01-102-slow.log 有 -t 15这一句，那么就是要显示出前15个记录，那么如果我的slow.log统计出来只有12个不到15个，而这里有继续遍历到15的话，那进程肯定会Died。

所以这里有2个解决方法：

1 修改/usr/local/mysql/bin/mysqldumpslow里面的源代码，加null判断。

这个过程有些复杂，暂时略过吧，期待后续空了再研究。

2 修改命令 /usr/local/mysql/bin/mysqldumpslow -s at -t 15 /root/db01-102-slow.log ，把-t 15修改成-t 10或者-t 5试试。

试了好几次，发现临界点在-t 7上面，如下：

[root@slave~]# /usr/local/mysql/bin/mysqldumpslow -s at -t 8 /root/db01-102-slow.log 
Reading mysql slow query log from /root/db01-102-slow.log
Count: 22 Time=13.20s (290s) Lock=0.00s (0s) Rows=10.0 (220), [dubbo]@2hosts
 select 
 coupon_id, coupon_lot.coupon_lot_id, coupon_lot.remark,
 coupon.code, coupon_lot.coupon_type, coupon.state,
 coupon_lot.ckey, coupon_lot.cvalue, coupon_lot.discount, coupon_lot.type, coupon_lot.channel, 
 coupon_lot.is_reusable, coupon_lot.start_datetime,
 coupon_lot.end_datetime, coupon_lot.create_datetime, coupon.update_datetime ,coupon_lot.department,
 coupon_lot.state as couponLotState, coupon_lot.create_operator,coupon_lot.coupon_category,
 coupon_lot.pdt_code,brand.brand_name,product_category.category_name
 from coupon_lot
 left join coupon 
 on coupon.coupon_lot_id = coupon_lot.coupon_lot_id
 LEFT JOIN brand
 ON brand.brand_id=coupon_lot.brand_id
 LEFT JOIN product_category
 on product_category.category_id=coupon_lot.category_id
 group by coupon_lot.coupon_lot_id
 order by coupon_lot.create_datetime DESC
 limit N,N

Count: 22 Time=9.61s (211s) Lock=0.00s (0s) Rows=1.0 (22), [dubbo]@2hosts
 select count(*)
 from coupon_lot
 left join coupon 
 on coupon.coupon_lot_id = coupon_lot.coupon_lot_id
 LEFT JOIN brand
 ON brand.brand_id=coupon_lot.brand_id
 LEFT JOIN product_category
 on product_category.category_id=coupon_lot.category_id

Count: 5 Time=2.47s (12s) Lock=0.00s (0s) Rows=0.0 (0), [dubbo]@2hosts
 select
 user_id, usename, nickname, password, user_group_id, realname, gender, email, mobilephone, 
 birthday, province_id, city_id, district_id, marry, income, remarks, create_datetime, 
 active_state, verityEmail, verityPhone, credit, last_login, last_ip, is_locked, channel, 
 tag, union_partner_uuid, union_user_safekey, is_black, qq, weibo_id, verity_email_key, 
 verity_phone_key, verity_email_datetime, verity_phone_datetime, verity_question, 
 verity_answer, cps_code, cps_time_from, cps_time_to, cps_cookie, first_channel
 from user_info where mobilephone = 'S' and (channel is null or trim(channel) ='S')

Count: 177 Time=1.40s (247s) Lock=0.00s (0s) Rows=1.0 (177), [xx]@2hosts
 select count(*) from user_info
 LEFT JOIN system_region a
 ON province_id =a.region_id
 LEFT JOIN system_region b
 ON city_id = b.region_id
 LEFT JOIN system_region c
 ON district_id = c.region_id

Count: 1 Time=1.13s (1s) Lock=0.00s (0s) Rows=10.0 (10), [xx]@[xxx]
 select 
 return_sn, relating_order_sn, return_from, oi.order_out_sn ,
 add_time , return_type, 
 return_pay, ui.usename as userName, return_consignee, return_goods_count ,
 return_total_fee, total_paid, 
 return_desc, return_order_status, return_pay_status ,
 return_shipping_status, order_return.lock_operator, order_return.return_invoice_no
 from order_return LEFT JOIN order_info oi
 on order_return.relating_order_sn = oi.order_sn 
 left join user_info ui on oi.user_id = ui.user_id
 left join order_payment on order_payment.order_sn = oi.order_sn
 order by order_return.add_time DESC
 , oi.order_sn 
 limit N,N

Count: 8 Time=1.09s (8s) Lock=0.00s (0s) Rows=10.0 (80), [xx]@2hosts
 select 
 return_sn, relating_order_sn, return_from, oi.order_out_sn ,
 add_time , return_type, 
 return_pay, ui.usename as userName, return_consignee, return_goods_count ,
 return_total_fee, total_paid, 
 return_desc, return_order_status, return_pay_status ,
 return_shipping_status, order_return.lock_operator, order_return.return_invoice_no
 from order_return LEFT JOIN order_info oi
 on order_return.relating_order_sn = oi.order_sn 
 left join user_info ui on oi.user_id = ui.user_id
 left join order_payment on order_payment.order_sn = oi.order_sn
 order by order_return.add_time DESC
 limit N,N

Count: 1 Time=1.00s (1s) Lock=0.00s (0s) Rows=1.0 (1), root[root]@localhost
 select sleep(N)

Died at /usr/local/mysql/bin/mysqldumpslow line 161, <> chunk 236.

-- 临界点 -t 7
[root@db-master-2 ~]# /usr/local/mysql/bin/mysqldumpslow -s at -t 7 /root/db01-102-slow.log 

Reading mysql slow query log from /root/db01-102-slow.log
Count: 22 Time=13.20s (290s) Lock=0.00s (0s) Rows=10.0 (220), [xx]@2hosts
 select 
 coupon_id, coupon_lot.coupon_lot_id, coupon_lot.remark,
 coupon.code, coupon_lot.coupon_type, coupon.state,
 coupon_lot.ckey, coupon_lot.cvalue, coupon_lot.discount, coupon_lot.type, coupon_lot.channel, 
 coupon_lot.is_reusable, coupon_lot.start_datetime,
 coupon_lot.end_datetime, coupon_lot.create_datetime, coupon.update_datetime ,coupon_lot.department,
 coupon_lot.state as couponLotState, coupon_lot.create_operator,coupon_lot.coupon_category,
 coupon_lot.pdt_code,brand.brand_name,product_category.category_name
 from coupon_lot
 left join coupon 
 on coupon.coupon_lot_id = coupon_lot.coupon_lot_id
 LEFT JOIN brand
 ON brand.brand_id=coupon_lot.brand_id
 LEFT JOIN product_category
 on product_category.category_id=coupon_lot.category_id
 group by coupon_lot.coupon_lot_id
 order by coupon_lot.create_datetime DESC
 limit N,N

Count: 22 Time=9.61s (211s) Lock=0.00s (0s) Rows=1.0 (22), [dubbo]@2hosts
 select count(*)
 from coupon_lot
 left join coupon 
 on coupon.coupon_lot_id = coupon_lot.coupon_lot_id
 LEFT JOIN brand
 ON brand.brand_id=coupon_lot.brand_id
 LEFT JOIN product_category
 on product_category.category_id=coupon_lot.category_id

Count: 5 Time=2.47s (12s) Lock=0.00s (0s) Rows=0.0 (0), [xx]@2hosts
 select
 user_id, usename, nickname, password, user_group_id, realname, gender, email, mobilephone, 
 birthday, province_id, city_id, district_id, marry, income, remarks, create_datetime, 
 active_state, verityEmail, verityPhone, credit, last_login, last_ip, is_locked, channel, 
 tag, union_partner_uuid, union_user_safekey, is_black, qq, weibo_id, verity_email_key, 
 verity_phone_key, verity_email_datetime, verity_phone_datetime, verity_question, 
 verity_answer, cps_code, cps_time_from, cps_time_to, cps_cookie, first_channel
 from user_info where mobilephone = 'S' and (channel is null or trim(channel) ='S')

Count: 177 Time=1.40s (247s) Lock=0.00s (0s) Rows=1.0 (177), [xx]@2hosts
 select count(*) from user_info
 LEFT JOIN system_region a
 ON province_id =a.region_id
 LEFT JOIN system_region b
 ON city_id = b.region_id
 LEFT JOIN system_region c
 ON district_id = c.region_id

Count: 1 Time=1.13s (1s) Lock=0.00s (0s) Rows=10.0 (10), [dubbo]@[xxx]
 select 
 return_sn, relating_order_sn, return_from, oi.order_out_sn ,
 add_time , return_type, 
 return_pay, ui.usename as userName, return_consignee, return_goods_count ,
 return_total_fee, total_paid, 
 return_desc, return_order_status, return_pay_status ,
 return_shipping_status, order_return.lock_operator, order_return.return_invoice_no
 from order_return LEFT JOIN order_info oi
 on order_return.relating_order_sn = oi.order_sn 
 left join user_info ui on oi.user_id = ui.user_id
 left join order_payment on order_payment.order_sn = oi.order_sn
 order by order_return.add_time DESC
 , oi.order_sn 
 limit N,N

Count: 8 Time=1.09s (8s) Lock=0.00s (0s) Rows=10.0 (80), [dubbo]@2hosts
 select 
 return_sn, relating_order_sn, return_from, oi.order_out_sn ,
 add_time , return_type, 
 return_pay, ui.usename as userName, return_consignee, return_goods_count ,
 return_total_fee, total_paid, 
 return_desc, return_order_status, return_pay_status ,
 return_shipping_status, order_return.lock_operator, order_return.return_invoice_no
 from order_return LEFT JOIN order_info oi
 on order_return.relating_order_sn = oi.order_sn 
 left join user_info ui on oi.user_id = ui.user_id
 left join order_payment on order_payment.order_sn = oi.order_sn
 order by order_return.add_time DESC
 limit N,N

Count: 1 Time=1.00s (1s) Lock=0.00s (0s) Rows=1.0 (1), root[root]@localhost
 select sleep(N)

[root@db-master-2 ~]#

最终总结：
mysqldumpslow报错：Died at /usr/local/mysql/bin/mysqldumpslow line 161, <> chunk 236. 是因为top数目太多了，mysqldumpslow遍历不过来的缘故。

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[mysqldumpslow出错]Diedat/usr/local/mysql/bin/mysqldumps

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