210机器上的几个altibase都连接不上，报如下错：
ocsdev@OCSTEST[/ocsdev]> isql -u sys -p manager -port 20304 -s 127.0.0.1
-----------------------------------------------------------------
Altibase Client Query utility.
Release Version 4.3.9.165
Copyright 2000, ALTIBASE Corporation or its subsidiaries.
All Rights Reserved.
-----------------------------------------------------------------
ISQL_CONNECTION = TCP, SERVER = 127.0.0.1, PORT_NO = 20304
[ERR-50032 : Client unable to establish connection]
但使用unix domain方式可以连接：
ocsdev@OCSTEST[/ocsdev]> export ISQL_CONNECTION=UNIX
ocsdev@OCSTEST[/ocsdev]> isql -u sys -p manager -port 20304 -s 127.0.0.1
-----------------------------------------------------------------
Altibase Client Query utility.
Release Version 4.3.9.165
Copyright 2000, ALTIBASE Corporation or its subsidiaries.
All Rights Reserved.
-----------------------------------------------------------------
ISQL_CONNECTION = UNIX, SERVER = 127.0.0.1, PORT_NO = 20304
这样就确定一个问题：altibase使用TCP方式不能连接
但在2.190上使用TCP可以连接：
[altibase@bssdev ~]$/data/altibase/bin/isql -s 10.200.2.210 -u sys -p manager -port 20303
-----------------------------------------------------------------
Altibase Client Query utility.
Release Version 4.3.9.0
Copyright 2000, ALTIBASE Corporation or its subsidiaries.
All Rights Reserved.
-----------------------------------------------------------------
Write NLS_USE (default US7ASCII) :
ISQL_CONNECTION = TCP, SERVER = 10.200.2.210, PORT_NO = 20303
iSQL>
怀疑可能是TCP端口被占用了
统计一下TCP连接情况
ocsdev@OCSTEST[/ocsdev]> netstat -an|grep tcp|wc
205 1230 15863
发现tcp连接并不多
莫非有一些非正常的连接，看看文件句柄数
bash-4.0# lsof | grep TCP |wc
18170 181700 1699884
然后发现有非常多的如下程序
……
RemindApp 610 scdev 179u IPv4 0xe0000005cc703f80 0t0 TCP *:64644 (CLOSING)
RemindApp 610 scdev 180u IPv4 0xe0000005cc704580 0t0 TCP *:64664 (CLOSING)
RemindApp 610 scdev 181u IPv4 0xe0000005cc707880 0t0 TCP *:64701 (CLOSING)
RemindApp 610 scdev 182u IPv4 0xe0000006db59c980 0t0 TCP *:64733 (CLOSING)
RemindApp 610 scdev 183u IPv4 0xe0000005caf70f80 0t0 TCP *:64762 (CLOSING)
RemindApp 610 scdev 184u IPv4 0xe00000060fad0f80 0t0 TCP *:64782 (CLOSING)
RemindApp 610 scdev 185u IPv4 0xe0000005b9d5f080 0t0 TCP *:64799 (CLOSING)
RemindApp 610 scdev 186u IPv4 0xe000000552718800 0t0 TCP *:64818 (CLOSING)
RemindApp 610 scdev 187u IPv4 0xe00000055271b200 0t0 TCP *:64837 (CLOSING)
RemindApp 610 scdev 188u IPv4 0xe0000005820fde80 0t0 TCP *:64864 (CLOSING)
RemindApp 610 scdev 189u IPv4 0xe0000006248cb480 0t0 TCP *:64891 (CLOSING)
RemindApp 610 scdev 190u IPv4 0xe0000005590e6d00 0t0 TCP *:64918 (CLOSING)
RemindApp 610 scdev 191u IPv4 0xe000000551c32500 0t0 TCP *:64939 (CLOSING)
RemindApp 610 scdev 192u IPv4 0xe0000006248cf380 0t0 TCP *:64961 (CLOSING)
RemindApp 610 scdev 193u IPv4 0xe0000005d573c080 0t0 TCP *:64980 (CLOSING)
RemindApp 610 scdev 194u IPv4 0xe0000006248cd580 0t0 TCP *:65001 (CLOSING)
RemindApp 610 scdev 195u IPv4 0xe00000019ff9ed80 0t0 TCP *:65020 (CLOSING)
RemindApp 610 scdev 196u IPv4 0xe000000552711000 0t0 TCP *:65041 (CLOSING)
RemindApp 610 scdev 197u IPv4 0xe0000006248cb780 0t0 TCP *:65066 (CLOSING)
RemindApp 610 scdev 198u IPv4 0xe000000552711600 0t0 TCP *:65090 (CLOSING)
RemindApp 610 scdev 199u IPv4 0xe0000006db59bd80 0t0 TCP *:65108 (CLOSING)
RemindApp 610 scdev 200u IPv4 0xe0000005cc703980 0t0 TCP *:65130 (CLOSING)
RemindApp 610 scdev 201u IPv4 0xe0000005cc702d80 0t0 TCP *:65149 (CLOSING)
RemindApp 610 scdev 202u IPv4 0xe0000005cc70fc80 0t0 TCP *:65169 (CLOSING)
RemindApp 610 scdev 203u IPv4 0xe0000005cc703680 0t0 TCP *:65189 (CLOSING)
RemindApp 610 scdev 204u IPv4 0xe0000005cc702180 0t0 TCP *:65206 (CLOSING)
RemindApp 610 scdev 205u IPv4 0xe0000005cc706080 0t0 TCP *:65226 (CLOSING)
RemindApp 610 scdev 206u IPv4 0xe00000053c392180 0t0 TCP *:65248 (CLOSING)
RemindApp 610 scdev 207u IPv4 0xe0000005cc70f080 0t0 TCP *:65269 (CLOSING)
RemindApp 610 scdev 208u IPv4 0xe0000006db598d80 0t0 TCP *:65289 (CLOSING)
RemindApp 610 scdev 209u IPv4 0xe00000053c392a80 0t0 TCP *:65308 (CLOSING)
RemindApp 610 scdev 210u IPv4 0xe0000005cc70c680 0t0 TCP *:65327 (CLOSING)
RemindApp 610 scdev 211u IPv4 0xe0000005cc70bd80 0t0 TCP *:65352 (CLOSING)
RemindApp 610 scdev 212u IPv4 0xe0000005cc707280 0t0 TCP *:65379 (CLOSING)
RemindApp 610 scdev 213u IPv4 0xe0000006db59ea80 0t0 TCP *:65398 (CLOSING)
RemindApp 610 scdev 214u IPv4 0xe0000006db599080 0t0 TCP *:65425 (CLOSING)
RemindApp 610 scdev 215u IPv4 0xe00000053c397280 0t0 TCP *:65443 (CLOSING)
RemindApp 610 scdev 216u IPv4 0xe0000005cc70de80 0t0 TCP *:65460 (CLOSING)
RemindApp 610 scdev 217u IPv4 0xe0000005cc704880 0t0 TCP *:65479 (CLOSING)
RemindApp 610 scdev 218u IPv4 0xe0000006db598780 0t0 TCP *:65499 (CLOSING)
RemindApp 610 scdev 219u IPv4 0xe0000005cc703080 0t0 TCP *:65517 (CLOSING)
RemindApp 610 scdev 220u IPv4 0xe0000005cc702780 0t0 TCP *:49159 (CLOSING)
RemindApp 610 scdev 221u IPv4 0xe00000053c396f80 0t0 TCP *:49189 (CLOSING)
RemindApp 610 scdev 222u IPv4 0xe00000053c397880 0t0 TCP *:49209 (CLOSING)
RemindApp 610 scdev 223u IPv4 0xe0000005cc702480 0t0 TCP *:49231 (CLOSING)
RemindApp 610 scdev 224u IPv4 0xe0000005cc702a80 0t0 TCP *:49251 (CLOSING)
RemindApp 610 scdev 225u IPv4 0xe0000005cc701b80 0t0 TCP *:49275 (CLOSING)
RemindApp 610 scdev 226u IPv4 0xe0000005cc701880 0t0 TCP *:49305 (CLOSING)
RemindApp 610 scdev 227u IPv4 0xe0000005cc701580 0t0 TCP *:49324 (CLOSING)
RemindApp 610 scdev 228u IPv4 0xe0000005cc701280 0t0 TCP *:49344 (CLOSING)
RemindApp 610 scdev 229u IPv4 0xe0000005cc700680 0t0 TCP *:49364 (CLOSING)
RemindApp 610 scdev 230u IPv4 0xe0000005cc700f80 0t0 TCP *:49395 (CLOSING)
RemindApp 610 scdev 231u IPv4 0xe0000005cc700c80 0t0 TCP *:49413 (CLOSING)
RemindApp 610 scdev 232u IPv4 0xe0000006db599c80 0t0 TCP *:49444 (CLOSING)
RemindApp 610 scdev 233u IPv4 0xe0000006db599380 0t0 TCP *:49461 (CLOSING)
RemindApp 610 scdev 234u IPv4 0xe0000005a68fe780 0t0 TCP *:49480 (CLOSING)
RemindApp 610 scdev 235u IPv4 0xe0000005a68fe180 0t0 TCP *:49500 (CLOSING)
RemindApp 610 scdev 236u IPv4 0xe0000005a68fde80 0t0 TCP *:49519 (CLOSING)
RemindApp 610 scdev 237u IPv4 0xe0000005a68fe480 0t0 TCP *:49538 (CLOSING)
RemindApp 610 scdev 238u IPv4 0xe00000053c394e80 0t0 TCP *:49558 (CLOSING)
RemindApp 610 scdev 239u IPv4 0xe0000006db597e80 0t0 TCP *:49577 (CLOSING)
RemindApp 610 scdev 240u IPv4 0xe0000005cc700380 0t0 TCP *:49595 (CLOSING)
……
很可能是RemindApp异常引起，导致tcp端口被占光。但为了证明这个问题，还是查看了系统的TCP参数
root@OCSTEST[/altibase/ocstest]# ndd -get /dev/tcp tcp_largest_anon_port
65535 －－匿名分配的最大的端口号
root@OCSTEST[/altibase/ocstest]# ndd -get /dev/tcp tcp_smallest_anon_port
49152 －－匿名分配的最小的端口号
65535-49152=16383 < 18170
说明匿名端口已被占光了
因此在本机使用TCP方式就无法连接了，而在2.190上可以。
bash-4.0# ps -ef|grep RemindApp
scdev 610 609 0 Apr 22 ? 6:38 /svn/scdev/r7code/bin/RemindApp -c/svn/scdev/r7code/etc/rent_remind.conf
scdev 609 1 0 Apr 22 ? 0:01 /svn/scdev/r7code/bin/RemindApp -c/svn/scdev/r7code/etc/rent_remind.conf
root 23195 23086 1 18:45:40 pts/20 0:00 grep RemindApp
scdev 613 609 0 Apr 22 ? 6:51 /svn/scdev/r7code/bin/RemindApp -c/svn/scdev/r7code/etc/rent_remind.conf
bash-4.0# kill -9 610 609 613
bash-4.0# ps -ef|grep RemindApp
root 23208 23086 0 18:46:30 pts/20 0:00 grep RemindApp
bash-4.0# lsof | grep TCP |wc -l
225
把程序杀掉后，TCP连接恢复正常
ocsdev@OCSTEST[/ocsdev]> isql -u sys -p manager -port 20304 -s 127.0.0.1
-----------------------------------------------------------------
Altibase Client Query utility.
Release Version 4.3.9.165
Copyright 2000, ALTIBASE Corporation or its subsidiaries.
All Rights Reserved.
-----------------------------------------------------------------
ISQL_CONNECTION = TCP, SERVER = 127.0.0.1, PORT_NO = 20304
iSQL>
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