The book is in the web site: https://leanpub.com/ignite
Bob
---
Confidentiality Notice: The information contained in this e-mail and any
accompanying attachment(s)
is intended only for the use
Hi
I am using Ignite 1.6.
I meet the exception as the mail title when I call cache.loadAll(keys,
true, null);
And this Exception is not logged.
I found this through debugging.
Actually, the ignite cluster is running.
Can anyone tell what is the possible reason?
Than
it doesn't help, provide your query configuration.
[1]: https://apacheignite.readme.io/docs/sql-queries
On Mon, Oct 24, 2016 at 10:47 AM, 胡永亮/Bob wrote:
Hi everyone,
I have a model Kc21, akc273 is its one String column .
I create the index in this column, as the following:
@QuerySqlField(index
Hi everyone,
I have a model Kc21, akc273 is its one String column .
I create the index in this column, as the following:
@QuerySqlField(index = true)
private String akc273;
Then I load data into cache from oracle, total 47535542 rows.
I execute the sql query to get the e
Hi everyone,
In official document, there are some code about Partition-aware data
loading.
private void loadPartition(Connection conn, int part,
IgniteBiInClosure clo) {
try (PreparedStatement st = conn.prepareStatement("select * from PERSONS
where partId=?")) {
st.setInt(1,
Hi Warm-hearted person，
Thanks for your help.
According to your advice, I will query some field not using select *. I
will add the index in the cache.
To Vladislav Pyatkov,
In previous mail, you said "you are always can copy data to another cache
(with index) and drop this",
Hi, everyone
My test environment: Ignite cluster has 8 nodes, every node has 8 cores CPU
and 30G memory. Their network has 1000M speed.
Oracle is deployed in the machine which has 32G memory and 8 cores CPU.
My db table has 47535542 rows with 99 columns.
When no index, the cost
will iterate WHOLE data set, but will take
33% of keys.
There is no general solution to speedup load.
On Tue, Oct 18, 2016 at 1:34 PM, 胡永亮/Bob wrote:
Hi,
I load data into Ignite from oracle with loadCache().
I load 100w data, when Ignite cluster has one node, its cost time is 2m27s.
Hi,
I load data into Ignite from oracle with loadCache().
I load 100w data, when Ignite cluster has one node, its cost time is 2m27s.
Two nodes, its cost time is 2m18s, three 2m15s, four 2m11s.
I have tested reading the 100w data through jdbc, its cost time is 40s.
Why don'
Hi, everyone
I only find some document aboute Ignite function, but I want to know how to
implement those functions.
Where can I get the architecture document?
So, I have some deeper problem to be explained.
For example,
1, The sql query of Ignite is implemented with MapRed
Hi, Val
According to your suggestion, I have a deeper understanding about this.
I will have a try.
Val, Thank you very much.
Bob
From: vkulichenko
Date: 2016-09-24 06:06
To: user@ignite.apache.org
Subject: Re: A very slow code of using entryprocessor, why?
Hi Bob,
Each invoke
hi, everyone
The code and related log are the following content, how can I do to
increase the performance? Thank you very much.
Code:
IgniteCache>> mapMatchingData =
IgniteManager.getInstance().getMapMatchingData();
Iterator>>> it1 =
mapMatchingData.iterator();
while(it1.hasNext(
Hi, everyone,
About this question, I search the mail list and Ignite java doc, but no
suitable answer was found.
My use case is, I have a cache whose structure is IgniteCache>>.
I want loop all entries to remove some entries in Map value.
So, first, I want to get all keys, and
Hi, Val
Thank you very much, I think this is very helpful for me.
I will change my compute code, and have a try.
Bob
From: vkulichenko
Date: 2016-09-23 07:00
To: user@ignite.apache.org
Subject: Re: Re: Increase Ignite instances can't increase the speed of compute
Hi Bob,
Most likel
shortcomings in your code, but me was not clear which size of
data moved between nodes or are data collect?
Can you create working example?
So I was able to reproduce the problem.
On Tue, Sep 13, 2016 at 12:06 PM, 胡永亮/Bob wrote:
Only 118 jobs for this test.
Bob
From: Taras Ledkov
D
Only 118 jobs for this test.
Bob
From: Taras Ledkov
Date: 2016-09-13 14:52
To: user@ignite.apache.org
Subject: Re: Re: Increase Ignite instances can't increase the speed of compute
Hi,
How many MatchingJobs do you submit?
On Tue, Sep 13, 2016 at 12:29 PM, 胡永亮/Bob wrote:
slav Pyatkov
Date: 2016-09-12 18:37
To: user@ignite.apache.org
Subject: Re: Increase Ignite instances can't increase the speed of compute
Hello,
I don't understand, what do you try to measure, without code.
Size of calculation task, size of data moved into network have importance.
Could yo
Hi, everyone:
I am using Ignite for computing and cache.
I use the same input data and the same compute logic.
When my ignite cluster's node is 2 in 2 machines, the total cost time is
38s.
But, when I increase the Ignite cluster nodes to 3 in 3 machines, the cost
time is 32s/51
so it doesn't always lead to exception, but you need to do it for
prevent issues of serialization.
Is static EntryProcessor allow to avoid NPE exception in your case?
On Thu, Aug 25, 2016 at 3:56 AM, 胡永亮/Bob wrote:
hi Alexey,
This is example from official website. No static EntryProcessor.
I
You need to make your EntryProcessor a static class, otherwise it captures a
reference to your enclosing class which causes the serialization exception.
2016-08-24 17:54 GMT+03:00 Vladislav Pyatkov :
Hello,
Could you please provide reproduced example?
On Wed, Aug 24, 2016 at 11:04 AM, 胡永亮/B
hi, everyone:
When I use EntryProcessor to update value in remote node, the statement
entry.getValue() throwed null exception. The log detail is in the attachement
file log.txt.
I don't know why.
I first do a check with the statement cache.containsKey(key), if it is
true, then
Val,
I am very happy to unstand this.
Bob
From: vkulichenko
Date: 2016-07-28 12:42
To: user@ignite.apache.org
Subject: Re: Re: SQL join query return different result under the same data
when having different ignite instance.
Bob,
With the new schema a class can belong only to on
Hi Val,
Yes, I do the change as you suggest.
Now, the tables is the following:
School:
id
name
address
1
xxx
aaa
Class:
id
name
number
schoolID
1
yyy
bbb
1
Student:
id
name
sex
schoolID
classID
1
zzz
male
1
1
And the cache keys ar
Hi Val,
My query is complex, I use another example to descripte my scenario.
There are three objects: School, Class, Student.
School:
id
name
address
1
xxx
aaa
Class:
id
name
number
1
yyy
bbb
Student:
id
name
sex
schoolID
classID
1
zzz
male
1
1
Now
;
+ " AND Kc21.akc190 = Kc24.akc190"
+ " AND Kc24.akb020 = Kc60.akb020"
+ " AND Kc24.akc190 = Kc60.akc190"
+ " AND Kc24.aae072 = Kc60.aae072"
+ " AND Kc24.bka135 = Kc60.bka135"
+ " AND COALESCE (Kc24.bkc380, '0') = '0'"
+ &q
Hi, Alexey:
First, thank you.
But, I don't know how to config the affinity for my sql, because it is too
complex.
My sql is:
"select * FROm Kc21, \"Kc24Cache\".Kc24"
+ ", \"Ka06Cache\".Ka06, \"Kc60Cache\".Kc60 "
+ " WHERE Kc21.akb020 = Kc24.akb020"
+ " AND Kc21.akc190 = Kc24.akc
hi, everyone:
I am using the ignite 1.6.
I have the sql query:
String querySql = "select count(*) FROm Kc21, \"Kc24Cache\".Kc24"
+ ", \"Ka06Cache\".Ka06, \"Kc60Cache\".Kc60 "
+ " WHERE kc21.akb020 = kc24.akb020"
+ " AND kc21.akc190 = kc24.akc190"
+ " AND kc24.akb020 = kc60.akb020"
+
emory?
Ignite consume too much memory!!!
Thanks.
Bob
发件人： 胡永亮/Bob
发送时间： 2016-07-12 17:22
收件人： user@ignite.apache.org
主题： Ignite used memory 7 times greater than imported data
Hi, everyone
I meet a problem: Ignite used 220G+ memory, but the imported data is only
31G. Why?
Basic info: I
Hi, everyone
I meet a problem: Ignite used 220G+ memory, but the imported data is only
31G. Why?
Basic info: I used Ignite 1.6, and deployed ignite cluster using 2 machine
whose memory is 128G.
I run 3 ignite instance in every machine. I am using JDK8.
I has 31G data in csv fil
The related code was not changed for fixing this bug.
I want to know, how can I get the code patch?
thanks.
胡永亮
Bob
From: Vasiliy Sisko
Date: 2016-06-29 15:37
To: user@ignite.apache.org
Subject: Re: Re: argument type mismatch of oracle TIMESTAMP field when call
loadCache
sorry, the infomation is not in detail.
My ignite's version is new release version: 1.6.
胡永亮
Bob
From: Vasiliy Sisko
Date: 2016-06-28 19:18
To: user@ignite.apache.org
Subject: Re: Re: argument type mismatch of oracle TIMESTAMP field when call
loadCache
Hello Bob.
What version of I
31 matches
Mail list logo
