现象
python print 无输出

[root@d personas]# python fixEsMysql.py
[root@d personas]# python fixEsMysql.py
[root@d personas]# python fixEsMysql.py
[root@d personas]# python fixEsMysql.py
[root@d personas]# python fixEsMysql.py
[root@d personas]# python fixEsMysql.py

[root@d ~]# cd /tmp-bash: cannot create temp file for here-document: No space left on device
^C
[root@d ~]# ^C
[root@d ~]# cd /tmp/

排查系统盘100%
排查系统盘文件
【吸取教训，不执行mv，执行cp，再echo >】
cp /usr/local/php7/logs/fpm_error_log /data/mvTOdataDisk/usr_local_php7_logs_fpm_error_log

ll -ash /data/mvTOdataDisk/

echo > /usr/local/php7/logs/fpm_error_log

[root@d ~]# cd /tmp/
[root@d tmp]# ls
hsperfdata_elsearch sess_7au46i0atajba9nm7rn2hifv27 sess_esuuj2449abj19sajjj8lhhn33 sess_kg2c1vt2omdrvpujim4vadmb25 sess_r9ovl7hj8cuus1mnbcse03tta7
hsperfdata_root sess_95g3q22828n4sid1gp88prdpc5 sess_eveqacn11h7gvq0c9nntr6lo43 sess_kka13mgbdpjk86u5pmsj8t5dt3 sess_rgut8lragg4n3pfnf8cqp23to4
jna-3506402 sess_96c3vl9e25ebqnfp5fhifd9kr2 sess_f4ef5v2njsa2hsbisbgl6dpdu5 sess_ld4d5h70rig1q89bf7c4ahik65 sess_s5stplu57sjmsrl42eqd5kh5u4
jna-384964879 sess_997or158n9jo5r0b53c18rcmd6 sess_fjurpi6cvjchd3f8gqu19lsga4 sess_m7rapre6060mmmh8oea1o0c0f3 sess_s612jk0pgcfd10bv3rlcpoa737
pear sess_a2icqldea9lk7il7p6f5bed7u2 sess_fqh5lm2jh0ts9415gvn65ejei2 sess_mmhulsmnu7q47j5s1r3h1fn0e6 sess_sbt7kljn0oqjbq2oepbk9ae551
sess_06ofvsu8v8fl19kcui19fplml7 sess_aasv9v6grt91vvg88b3if1ksm5 sess_ggjl12vhq51mtrg21upp2kt4l7 sess_munmk8otqq71ci6err2e0i78f3 sess_t90b7pt8kn5r662dkgqrn3mdo2
sess_0gdpervcclcuu6g8g38e4b3lc0 sess_aea2pk9n06higksqs8oi3ie9a5 sess_ghmudrqd69lunfhhdcijsuc404 sess_n04pco90hn85476i9a3oj862u2 sess_tg98cv60nefqpp6ecgi8e237j2
sess_14273qnsnkkssa5ojhjm4f7d81 sess_ai38h86gd80kqbef91bbmd1la7 sess_haiarl8d2r7pc73tha8frev2e7 sess_n68uepcec5ieoh39vp60bqcie1 sess_tibtddd9jqc98oqrf54vpnnii5
sess_1pd42ep48fed019352ormcoit0 sess_b8mi5m7bg8dnfp7mbba2mpdii5 sess_hc654u9hj7ifu0l82e70ncvir0 sess_n7j30fnnk5vhsi379c10st0546 sess_tk0mha2gj46c4gd93e8r8bquu0
sess_1si044tgsfcfau8tsepvt9prh7 sess_bkkl3kl9j7vrhevfdf98h8kcg5 sess_hgqohslj7l2gn1qjdo9fojv2c4 sess_nrtdusc9c934ea0rcsc37d45v6 sess_tlnhe1097c4jdeh60rv59comi4
sess_2jklj1urieq9k31289hfggsd17 sess_bkq5j9a3askbn2ltl9bf78ta41 sess_hh7e2od1mpu9ctojik9qope3n2 sess_ockgtv622nts7s847627ujnj54 sess_torb5v8tgt9cr858ld774rism0
sess_32daifk6p1tr9g6q8gh4mjs661 sess_bs2ievvbaeg9kvptmtffq0bq17 sess_hksug2nm7vpakf4urnl42951a4 sess_ojrfmbk89n54o1ceep2qhanbd1 sess_u7aba08ggfnjs1obm12sfaq7p6
sess_36cs7ekgpijnk6g956feim50o3 sess_c51e4tfelo4dv52g5m70somtm5 sess_ik7ivmt4aukhatugo5stfj70a4 sess_p61grm11mbv92kg25ij446cql4 sess_ugjkcjc262epghfvj47m5l0i97
sess_3rm97e9u330jipimt72kls95o7 sess_d2e4kf406jqtjrnvt0crdaloa4 sess_imcq3fio1nk1a5ta64b2gdhbn1 sess_p7ktcrampik4t651idtirp4hq4 sess_uhmfet3j0539950f57d4401ei3
sess_4hp6ci0aevfns8uspp4pnbu5b6 sess_db9sad1oosqg1mn6vj9vqvco04 sess_inbmt6lnqco25uq8rsnqne79t7 sess_paneonsjs8s634kum5adunm1f6 yum_save_tx.2018-09-28.18-16.X3yF3h.yumtx
sess_4j5mivrul2ehapb9313avuf1d1 sess_dm9musfk3n6focuiauut5n6um0 sess_ivo7j2rjum5lpih71jahecpl74 sess_pi3uch1balga2pokqlj92iap80 yum_save_tx.2018-09-28.18-26.CW5GrU.yumtx
sess_5oqaa8k60bbgftqie6md38fpe4 sess_dpj9eudo6eg9o0u0fh3l340df7 sess_jpu4k6m7kaf0i7j4r30coiem66 sess_qf0rp06q5mj490tbashvoo2qm7
sess_72t6ff9iv8bkgl8n14aojdd637 sess_e12fppmpfh5ngo5isi2fqrov41 sess_k64u29ugo37e380tcg6jonmei6 sess_qqhb1e09fsu5itb4m046o9cjq1
[root@d tmp]# cd ..
[root@d /]# cd /us-bash: cannot create temp file for here-document: No space left on device
^C
[root@d /]# ^C
[root@d /]# ^C
[root@d /]# cd /usr/
[root@d usr]# du --max-depth=1 -h .
141M ./bin
22G ./local
4.0K ./games
29M ./include
582M ./lib
56M ./sbin
4.0K ./etc
78M ./libexec
330M ./java
417M ./lib64
272M ./src
519M ./share
24G .
[root@d usr]# du --max-depth=1 -h ./lo-bash: cannot create temp file for here-document: No space left on device
-bash: cannot create temp file for here-document: No space left on device
^C
[root@d usr]# ^C
[root@d usr]# du --max-depth=1 -h ./local
7.6M ./local/bin
198M ./local/aegis
4.0K ./local/games
455M ./local/python2712
219M ./local/cloudmonitor
43M ./local/elasticsearch-2.4.1
22M ./local/freetds0.91
7.0M ./local/nginx
740K ./local/include
90M ./local/lib
4.0K ./local/sbin
4.0K ./local/etc
4.0K ./local/libexec
541M ./local/boost
4.0K ./local/lib64
19G ./local/php7
1.9G ./local/mysql
4.0K ./local/src
2.7M ./local/share
18M ./local/freetds
22G ./local
[root@d usr]# du --max-depth=1 -h ./local/php7
4.0K ./local/php7/www
115M ./local/php7/bin
18G ./local/php7/logs
5.0M ./local/php7/include
4.0K ./local/php7/man
11M ./local/php7/lib
38M ./local/php7/sbin
108K ./local/php7/etc
92K ./local/php7/php
128K ./local/php7/docs
196K ./local/php7/tests
4.0K ./local/php7/cfg
20K ./local/php7/var
16K ./local/php7/data
2.3M ./local/php7/share
19G ./local/php7
[root@d usr]# ls /data/
elasticsearch genTokenForApp log lost+found mysql ossutil rootbak sem superpub unionlog xiaole_chk_url xiaole_chk_url.zip xiaole_dl_img xiaole_dvops_DB
[root@d usr]# mkdir /data/mvTOdataDisk
[root@d usr]# ll -ash /usr/local/php7/var/log
total 12K
4.0K drwxr-xr-x 2 root root 4.0K Feb 9 2017 .
4.0K drwxr-xr-x 4 root root 4.0K Feb 9 2017 ..
4.0K -rw------- 1 root root 3.9K Aug 29 2017 php-fpm.log
[root@d usr]# ll -ash /usr/local/php7/var/logs
ls: cannot access /usr/local/php7/var/logs: No such file or directory
[root@d usr]# ll -ash /usr/local/php7/logs
total 18G
4.0K drwxr-xr-x 2 root root 4.0K Aug 29 2017 .
4.0K drwxr-xr-x 17 root root 4.0K Sep 29 09:50 ..
18G -rw-r--r-- 1 root root 18G Sep 30 09:17 fpm_error_log
52K -rw-r--r-- 1 root root 50K Aug 30 17:49 php-error.log
[root@d usr]# cp /usr/local/php7/logs/fpm_error_log /data/mvTOdataDisk/usr_local_php7_logs_fpm_error_log

[root@d usr]# echo > /usr/local/php7/logs/fpm_error_log

[root@d usr]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 40G 22G 16G 58% /
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 161M 16G 2% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/vdb 1.1T 447G 581G 44% /data
tmpfs 3.2G 0 3.2G 0% /run/user/0
[root@d usr]#