Reg Increasing the EJB Response Time

We are facing below performance problems in our application,
1. Response time from EJB (Stateless Session Bean) to Client (Swing).
2. Time taken for looping through the Result Set.
For 5000 records, our query is taking 0.2 Secs but looping through the ResultSet is taking around 16 seconds and Response time for transferring 160 kb (object data) from EJB to Client is taking around 30 Secs.
We have achieved some improvement in ResultSet looping time by setting the setFetchSize of ResultSet to 250.
Can anyone suggest?
1. Is there any way to increase the Data Transfer time (Response time) from EJB to Client?
2. What is the ideal value for setting the value for ResultSet.setFetchSize() ( No of records we fetch vary from 1 � 3,00,000 records)

1. Response time from EJB (Stateless Session Bean) to
Client (Swing). Consider non-EJB options. They might prove efficient in your case.
2. Time taken for looping through the Result Set. Try and design your code as to not require all the records at a time.
For 5000 records, our query is taking 0.2 Secs but
looping through the ResultSet is taking around 16
seconds and Response time for transferring 160 kb
(object data) from EJB to Client is taking around 30
Secs.
We have achieved some improvement in ResultSet
looping time by setting the setFetchSize of ResultSet
to 250. There is a limit to what you can achieve with that.
Can anyone suggest?
1. Is there any way to increase the Data Transfer
time (Response time) from EJB to Client? I suppose you would want to reduce the response time.
2. What is the ideal value for setting the value for
ResultSet.setFetchSize() ( No of records we fetch
vary from 1 � 3,00,000 records)
shrug

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Checking the file "/etc/resolv.conf"; to make sure only one of domain and search entries is defined
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Node Name Status
racnode4 failed
racnode3 failed
racnode2 failed
racnode1 failed
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PRVF-5636 : The DNS response time for an unreachable node exceeded "15000"

Friends,
OS: OEL 6.3 64 bit
DB: 11.2.0.3
Environment: VirtualBox 4.1.20
i have 3 nodes. one is for dns and other two for rac1 and rac2
i have done all the preliminary steps. then i started
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Checking DNS response time for an unreachable node
Node Name                             Status
rac2                                  failed
rac1                                  failed
PRVF-5636 : The DNS response time for an unreachable node exceeded "15000" ms on following nodes: rac2
File "/etc/resolv.conf" is not consistent across nodesok....now to solve this error...i tried many options...but not able to succeed.
Try 1:
[root@mydns ~]# time nslookup rac1
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   rac1.sathy.net
Address: 192.168.1.3
real    0m0.051s
user    0m0.003s
sys     0m0.011s
[root@mydns ~]# [oracle@rac1 grid]$ time nslookup mydns
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   mydns.sathy.net
Address: 192.168.1.2
real    0m0.019s
user    0m0.005s
sys     0m0.008s
[oracle@rac1 grid]$
[root@rac2 ~]# time nslookup rac1
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   rac1.sathy.net
Address: 192.168.1.3
real    0m0.019s
user    0m0.008s
sys     0m0.005s
[root@rac2 ~]# Try 2:
[root@mydns ~]# nslookup sathy-scan
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   sathy-scan.sathy.net
Address: 192.168.1.8
Name:   sathy-scan.sathy.net
Address: 192.168.1.9
Name:   sathy-scan.sathy.net
Address: 192.168.1.7
[root@mydns ~]# nslookup rac1
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   rac1.sathy.net
Address: 192.168.1.3
[root@mydns ~]# nslookup rac2
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   rac2.sathy.net
Address: 192.168.1.5
[root@mydns ~]#
[oracle@rac1 grid]$ nslookup sathy-scan
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   sathy-scan.sathy.net
Address: 192.168.1.9
Name:   sathy-scan.sathy.net
Address: 192.168.1.7
Name:   sathy-scan.sathy.net
Address: 192.168.1.8
[oracle@rac1 grid]$ nslookup rac2
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   rac2.sathy.net
Address: 192.168.1.5
[oracle@rac1 grid]$ nslookup rac1
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   rac1.sathy.net
Address: 192.168.1.3
[oracle@rac1 grid]$
[root@rac2 ~]# nslookup sathy-scan
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   sathy-scan.sathy.net
Address: 192.168.1.7
Name:   sathy-scan.sathy.net
Address: 192.168.1.8
Name:   sathy-scan.sathy.net
Address: 192.168.1.9
[root@rac2 ~]# nslookup rac1
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   rac1.sathy.net
Address: 192.168.1.3
[root@rac2 ~]# nslookup rac2
Server:         192.168.1.2
Address:        192.168.1.2#53
Name:   rac2.sathy.net
Address: 192.168.1.5
[root@rac2 ~]# Try 3:
[root@mydns ~]# cat /etc/named.conf
// Default named.conf generated by install of bind-9.2.4-30.el4_7.2
options {
        listen-on port 53 { any; };
        directory "/var/named";
        dump-file "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
        forwarders { 192.168.1.1; };
include "/etc/rndc.key";
zone "sathy.net" IN {
type master;
file "sathy.net.zone";
allow-update { none; };
zone "1.168.192.in-addr.arpa." IN {
type master;
file "1.168.192.in-addr.arpa";
allow-update { none; };
zone "." in {
type hint;
file "/dev/null";
[root@mydns ~]# Try 4:
[root@mydns ~]# cat /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
#SELINUXTYPE=targeted
[root@mydns ~]#
[oracle@rac1 grid]$ cat /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
#SELINUXTYPE=targeted
[oracle@rac1 grid]$
[root@rac2 ~]# cat /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
#SELINUXTYPE=targeted
[root@rac2 ~]# what else i have to check to solve this error?
for the past 2 days..i am trying to solve this error. may be somewhere a small mistake is happened from my side, but i am not able to find out.
hope somebody will find out and help me.
thanks

ok...here it is....
[root@mydns ~]# cat /etc/resolv.conf
# Generated by NetworkManager
search sathy.net
nameserver 192.168.1.2
[root@mydns ~]#
[root@rac1 ~]# cat /etc/resolv.conf
# Generated by NetworkManager
search sathy.net
nameserver 192.168.1.2
[root@rac1 ~]#
[root@rac2 ~]# cat /etc/resolv.conf
# Generated by NetworkManager
search sathy.net
nameserver 192.168.1.2
[root@rac2 ~]#
[root@mydns ~]# cat /etc/hosts
#127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
#::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
127.0.0.1               localhost.localdomain localhost
::1            localhost6.localdomain6 localhost6
# Public Network Â– (eth0)
192.168.1.3     rac1.sathy.net    rac1
192.168.1.5     rac2.sathy.net    rac2
# Public Virtual IP (VIP) addresses Â– (eth0:1)
192.168.1.4     rac1-vip.sathy.net rac1-vip
192.168.1.6     rac2-vip.sathy.net rac2-vip
# Private Interconnect Â– (eth1)
192.168.2.3      rac1-priv.sathy.net       rac1-priv
192.168.2.5      rac2-priv.sathy.net       rac2-priv
#Compute Node Client Access SCAN Interface details
#192.168.1.7   sathy-scan.sathy.net sathy-scan
#192.168.1.8   sathy-scan.sathy.net sathy-scan
#192.168.1.9   sathy-scan.sathy.net sathy-scan
[root@mydns ~]#
[root@rac1 ~]# cat /etc/hosts
#127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
#::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
127.0.0.1               localhost.localdomain localhost
::1            localhost6.localdomain6 localhost6
# Public Network Â– (eth0)
192.168.1.3     rac1.sathy.net    rac1
192.168.1.5     rac2.sathy.net    rac2
# Public Virtual IP (VIP) addresses Â– (eth0:1)
192.168.1.4     rac1-vip.sathy.net rac1-vip
192.168.1.6     rac2-vip.sathy.net rac2-vip
# Private Interconnect Â– (eth1)
192.168.2.3      rac1-priv.sathy.net       rac1-priv
192.168.2.5      rac2-priv.sathy.net       rac2-priv
#Compute Node Client Access SCAN Interface details
#192.168.1.7   sathy-scan.sathy.net sathy-scan
#192.168.1.8   sathy-scan.sathy.net sathy-scan
#192.168.1.9   sathy-scan.sathy.net sathy-scan
[root@rac1 ~]#
[root@rac2 ~]# cat /etc/hosts
#127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
#::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
127.0.0.1               localhost.localdomain localhost
::1            localhost6.localdomain6 localhost6
# Public Network Â– (eth0)
192.168.1.3     rac1.sathy.net    rac1
192.168.1.5     rac2.sathy.net    rac2
# Public Virtual IP (VIP) addresses Â– (eth0:1)
192.168.1.4     rac1-vip.sathy.net rac1-vip
192.168.1.6     rac2-vip.sathy.net rac2-vip
# Private Interconnect Â– (eth1)
192.168.2.3      rac1-priv.sathy.net       rac1-priv
192.168.2.5      rac2-priv.sathy.net       rac2-priv
#Compute Node Client Access SCAN Interface details
#192.168.1.7   sathy-scan.sathy.net sathy-scan
#192.168.1.8   sathy-scan.sathy.net sathy-scan
#192.168.1.9   sathy-scan.sathy.net sathy-scan
[root@rac2 ~]#
[oracle@rac1 ~]$ ssh rac2 date
Sun Sep 9 22:04:45 IST 2012
[oracle@rac1 ~]$ su - grid
Password:
[grid@rac1 ~]$ ssh rac2 date
Sun Sep 9 22:04:54 IST 2012
[grid@rac1 ~]$
[oracle@rac2 ~]$ ssh rac1 date
Sun Sep 9 22:04:18 IST 2012
[oracle@rac2 ~]$ su - grid
Password:
[grid@rac2 ~]$ ssh rac1 date
Sun Sep 9 22:04:31 IST 2012
[grid@rac2 ~]$ Now the error is ...
PRVF-5637 : DNS response time could not be checked on following nodes: rac2,rac1what else?
i wonder how it was successful in my previous installation which in oel 5.7....
Edited by: OraDB on Sep 9, 2012 9:44 AM

PRVF-5636 : The DNS response time for an unreachable node exceeded "15000" ms on following nodes

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domain entry in file "/etc/resolv.conf" is consistent across nodes
Checking if search entry in file "/etc/resolv.conf" is consistent across the nodes...
search entry in file "/etc/resolv.conf" is consistent across nodes
Checking DNS response time for an unreachable node
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rac2                                  failed
rac1                                  failed
PRVF-5636 : The DNS response time for an unreachable node exceeded "15000" ms on following nodes: rac2,rac1
File "/etc/resolv.conf" is not consistent across nodes
Thanks

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Regards
Nick Loy

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Increase the amount of times you can "Step backward" alt+cntrl+z?

I find myself saving numerous iterations of my files, because the defualt settings only let step backwards a few times. Is there a way to greatly increase the amount of times you can step backward? I though perhaps the history window would let me double back on many of my actions, but even that did not go far back enough.

I'm not fully sure I follow you in this logic yet... I apologize if I'm being dense.
Saving your work occasionally is always a good idea, REGARDLESS of the number of history states. Even if you keep only 10 history states you'll lose just as much work if you haven't saved anything since the last several hundred steps and elephant droppings unexpectedly shut down your PC.
The important thing I'd like to note is that my choice of the number of history states, from what I have observed, does not seem to change the stability of Photoshop in any way.
If you find choosing a larger number of states does destabilize Photoshop on your system, perhaps you have RAM problems? Or maybe configuration issues? What do you have your RAM usage limit set to?
Your example about brush strokes is actually a good one to make my point that a deeper history can be a Good Thing. For example, if I touch up 75 spots (hot pixels in an astroimage, for example) with separate applications of the Spot Healing Brush, then I want to compare before and after images but I forgot to make a layer copy way back when, I can copy the image, go back 75 steps in the History, and paste the result over the original from an old history state to blink a before/after comparison.
The thing that's not been mentioned here is Efficiency. I have purposely populated my workstation with a lot of high reliability RAM (16 GB ECC). You might find Photoshop's efficiency going down if your system doesn't have enough RAM to be able to easily manage a deep history... Efficiency matters too, and hammering the scratch disk with a lot of I/O can not only slow things down for you but can also sometimes expose latent instability in a system.
-Noel

Reg Increasing the EJB Response Time

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