Re: Can I use the java client of newer version to connect to a old version server?

2014-07-14 Thread xzer LR
I think I got the reason.

At first, I noticed that the row number from the exception stack is not 
compatible to the client 1.2.2 source, then it exactly occurred at the old 
version 1.0.3 server side.

Then the service side exception told us that it failed from reading the 
last  string array:

https://github.com/elasticsearch/elasticsearch/blob/1.0/src/main/java/org/elasticsearch/action/admin/cluster/state/ClusterStateRequest.java#L132

I recognized that the real problem is the client size did not check the 
version correctly, then I digged the source more deeply, then I found the 
following row which seems wrong:

https://github.com/elasticsearch/elasticsearch/blob/1.0/src/main/java/org/elasticsearch/client/transport/TransportClientNodesService.java#L164

 DiscoveryNode node = new DiscoveryNode(#transport#- + tempNodeIdGenerator
.incrementAndGet(), transportAddress, version);

*The nodes passed to construct the transport client are simply initialized 
as the current client version.*

I have no idea how to fix it but it seems that it should be reported as a 
bug?





在 2014年7月12日星期六UTC+9上午4时29分01秒,Ivan Brusic写道:

 The code is suspicious since it has an explicit check for versions prior 
 to 1.2


 https://github.com/elasticsearch/elasticsearch/blob/master/src/main/java/org/elasticsearch/action/admin/cluster/state/ClusterStateRequest.java#L121-L124

 Don't know much else about the code to comment further.

 Cheers,

 Ivan


 On Fri, Jul 11, 2014 at 3:30 AM, xzer LR xia...@gmail.com javascript: 
 wrote:

 I am using TransportClient, the following is how I retrieve the client 
 instance:

 Client client = new 
 TransportClient(sb.build()).addTransportAddresses(esAddresses);

 在 2014年7月11日星期五UTC+9下午6时51分26秒,David Pilato写道:

 Are you using a TransportClient or NodeClient?
 If NodeClient, could you try with the TransportClient?
  
 -- 
 *David Pilato* | *Technical Advocate* | *Elasticsearch.com*
 @dadoonet https://twitter.com/dadoonet | @elasticsearchfr 
 https://twitter.com/elasticsearchfr


 Le 11 juillet 2014 à 11:14:59, xzer LR (xia...@gmail.com) a écrit:

  As a test result, I got exceptions when I tried to use the newest 
 1.2.2 java client to connect to a 1.0.3 cluster: 

  18:05:41.020 [elasticsearch[Slipstream][transport_client_worker][T#1]{New 
 I/O worker #1}] [INFO ] [] org.elasticsearch.client.transport[105] - 
 [Slipstream] failed to get local cluster state for 
 [#transport#-1][e-note][inet[/192.168.200.81:9300]], disconnecting...
 org.elasticsearch.transport.RemoteTransportException: 
 [server-cat][inet[/192.168.21.81:9300]][cluster/state]
 java.lang.IndexOutOfBoundsException: Readable byte limit exceeded: 48
 at org.elasticsearch.common.netty.buffer.AbstractChannelBuffer.readByte(
 AbstractChannelBuffer.java:236) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.ChannelBufferStreamInput.readByte(
 ChannelBufferStreamInput.java:132) ~[elasticsearch-1.2.2.jar:na]
 at 
 org.elasticsearch.common.io.stream.StreamInput.readVInt(StreamInput.java:141)
  
 ~[elasticsearch-1.2.2.jar:na]
 at 
 org.elasticsearch.common.io.stream.StreamInput.readString(StreamInput.java:272)
  
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.common.io.stream.HandlesStreamInput.
 readString(HandlesStreamInput.java:61) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.common.io.stream.StreamInput.
 readStringArray(StreamInput.java:362) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.action.admin.cluster.state.
 ClusterStateRequest.readFrom(ClusterStateRequest.java:132) 
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.MessageChannelHandler.
 handleRequest(MessageChannelHandler.java:209) 
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.MessageChannelHandler.
 messageReceived(MessageChannelHandler.java:109) 
 ~[elasticsearch-1.2.2.jar:na]

 I didn't find any metioned break change about this exceptioin.

 在 2014年7月4日星期五UTC+9下午3时31分07秒,David Pilato写道: 

  Well. It depends.

 1.0 is incompatible with 0.90
 1.2 should work with 1.x IIRC.

 From 1.0, we try to keep this compatible. If not, release notes will 
 tell you.

 --
 David ;-)
 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs

  
 Le 4 juil. 2014 à 07:09, xzer LR xia...@gmail.com a écrit :

  For some reasons, we have several separated elasticsearch clusters 
 for our front applicaitons. We want to upgrade our clusters' version to 
 the 
 newest version but apparently it is impossible to upgrade all the clusters 
 at the same time, which means our single application have to connect to 
 multiple clusters with different versions.  

 My question is whether the elasticsearch java client has the ability to 
 work correctly with an old version server?
  --
 You received this message because you are subscribed to the Google 
 Groups elasticsearch group.
 To unsubscribe from this group and stop receiving emails from it, send 
 an email to elasticsearc...@googlegroups.com.
 To view this discussion on the 

Re: Can I use the java client of newer version to connect to a old version server?

2014-07-14 Thread joergpra...@gmail.com
You can not connect a newer TransportClient to a server which is older. You
can connect an older TransportClient to a newer server (without being able
to use new features).

Jörg


On Mon, Jul 14, 2014 at 10:36 AM, xzer LR xiao...@gmail.com wrote:

 I think I got the reason.

 At first, I noticed that the row number from the exception stack is not
 compatible to the client 1.2.2 source, then it exactly occurred at the old
 version 1.0.3 server side.

 Then the service side exception told us that it failed from reading the
 last  string array:


 https://github.com/elasticsearch/elasticsearch/blob/1.0/src/main/java/org/elasticsearch/action/admin/cluster/state/ClusterStateRequest.java#L132

 I recognized that the real problem is the client size did not check the
 version correctly, then I digged the source more deeply, then I found the
 following row which seems wrong:


 https://github.com/elasticsearch/elasticsearch/blob/1.0/src/main/java/org/elasticsearch/client/transport/TransportClientNodesService.java#L164

  DiscoveryNode node = new DiscoveryNode(#transport#- +
 tempNodeIdGenerator.incrementAndGet(), transportAddress, version);

 *The nodes passed to construct the transport client are simply initialized
 as the current client version.*

 I have no idea how to fix it but it seems that it should be reported as a
 bug?





 在 2014年7月12日星期六UTC+9上午4时29分01秒,Ivan Brusic写道:

 The code is suspicious since it has an explicit check for versions prior
 to 1.2

 https://github.com/elasticsearch/elasticsearch/
 blob/master/src/main/java/org/elasticsearch/action/admin/cluster/state/
 ClusterStateRequest.java#L121-L124

 Don't know much else about the code to comment further.

 Cheers,

 Ivan


 On Fri, Jul 11, 2014 at 3:30 AM, xzer LR xia...@gmail.com wrote:

 I am using TransportClient, the following is how I retrieve the client
 instance:

 Client client = new TransportClient(sb.build()).addTransportAddresses(
 esAddresses);

 在 2014年7月11日星期五UTC+9下午6时51分26秒,David Pilato写道:

 Are you using a TransportClient or NodeClient?
 If NodeClient, could you try with the TransportClient?

 --
 *David Pilato* | *Technical Advocate* | *Elasticsearch.com*
 @dadoonet https://twitter.com/dadoonet | @elasticsearchfr
 https://twitter.com/elasticsearchfr


 Le 11 juillet 2014 à 11:14:59, xzer LR (xia...@gmail.com) a écrit:

  As a test result, I got exceptions when I tried to use the newest
 1.2.2 java client to connect to a 1.0.3 cluster:

  18:05:41.020 [elasticsearch[Slipstream][transport_client_worker][T#1]{New
 I/O worker #1}] [INFO ] [] org.elasticsearch.client.transport[105] -
 [Slipstream] failed to get local cluster state for
 [#transport#-1][e-note][inet[/192.168.200.81:9300]], disconnecting...
 org.elasticsearch.transport.RemoteTransportException:
 [server-cat][inet[/192.168.21.81:9300]][cluster/state]
 java.lang.IndexOutOfBoundsException: Readable byte limit exceeded: 48
 at org.elasticsearch.common.netty.buffer.AbstractChannelBuffer.
 readByte(AbstractChannelBuffer.java:236) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.ChannelBufferStreamInput.readByte(
 ChannelBufferStreamInput.java:132) ~[elasticsearch-1.2.2.jar:na]
 at 
 org.elasticsearch.common.io.stream.StreamInput.readVInt(StreamInput.java:141)
 ~[elasticsearch-1.2.2.jar:na]
 at 
 org.elasticsearch.common.io.stream.StreamInput.readString(StreamInput.java:272)
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.common.io.stream.HandlesStreamInput.readSt
 ring(HandlesStreamInput.java:61) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.common.io.stream.StreamInput.readStringArr
 ay(StreamInput.java:362) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.action.admin.cluster.state.ClusterStateReq
 uest.readFrom(ClusterStateRequest.java:132)
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.MessageChannelHandler.hand
 leRequest(MessageChannelHandler.java:209) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.MessageChannelHandler.mess
 ageReceived(MessageChannelHandler.java:109)
 ~[elasticsearch-1.2.2.jar:na]

 I didn't find any metioned break change about this exceptioin.

 在 2014年7月4日星期五UTC+9下午3时31分07秒,David Pilato写道:

  Well. It depends.

 1.0 is incompatible with 0.90
 1.2 should work with 1.x IIRC.

 From 1.0, we try to keep this compatible. If not, release notes will
 tell you.

 --
 David ;-)
 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs


 Le 4 juil. 2014 à 07:09, xzer LR xia...@gmail.com a écrit :

  For some reasons, we have several separated elasticsearch clusters
 for our front applicaitons. We want to upgrade our clusters' version to 
 the
 newest version but apparently it is impossible to upgrade all the clusters
 at the same time, which means our single application have to connect to
 multiple clusters with different versions.

 My question is whether the elasticsearch java client has the ability
 to work correctly with an old version server?
  --
 You received this message 

Re: Can I use the java client of newer version to connect to a old version server?

2014-07-14 Thread xzer LR
Thank you for the comment, according to the source, it seems you are right.

I will try a converse test




在 2014年7月14日星期一UTC+9下午6时36分03秒,Jörg Prante写道:

 You can not connect a newer TransportClient to a server which is older. 
 You can connect an older TransportClient to a newer server (without being 
 able to use new features).

 Jörg


 On Mon, Jul 14, 2014 at 10:36 AM, xzer LR xia...@gmail.com javascript: 
 wrote:

 I think I got the reason.

 At first, I noticed that the row number from the exception stack is not 
 compatible to the client 1.2.2 source, then it exactly occurred at the old 
 version 1.0.3 server side.

 Then the service side exception told us that it failed from reading the 
 last  string array:


 https://github.com/elasticsearch/elasticsearch/blob/1.0/src/main/java/org/elasticsearch/action/admin/cluster/state/ClusterStateRequest.java#L132

 I recognized that the real problem is the client size did not check the 
 version correctly, then I digged the source more deeply, then I found the 
 following row which seems wrong:


 https://github.com/elasticsearch/elasticsearch/blob/1.0/src/main/java/org/elasticsearch/client/transport/TransportClientNodesService.java#L164

  DiscoveryNode node = new DiscoveryNode(#transport#- + 
 tempNodeIdGenerator.incrementAndGet(), transportAddress, version);

 *The nodes passed to construct the transport client are simply 
 initialized as the current client version.*

 I have no idea how to fix it but it seems that it should be reported as a 
 bug?





 在 2014年7月12日星期六UTC+9上午4时29分01秒,Ivan Brusic写道:

 The code is suspicious since it has an explicit check for versions prior 
 to 1.2

 https://github.com/elasticsearch/elasticsearch/
 blob/master/src/main/java/org/elasticsearch/action/admin/cluster/state/
 ClusterStateRequest.java#L121-L124

 Don't know much else about the code to comment further.

 Cheers,

 Ivan


 On Fri, Jul 11, 2014 at 3:30 AM, xzer LR xia...@gmail.com wrote:

 I am using TransportClient, the following is how I retrieve the client 
 instance:

 Client client = new TransportClient(sb.build()).addTransportAddresses(
 esAddresses);

 在 2014年7月11日星期五UTC+9下午6时51分26秒,David Pilato写道:

 Are you using a TransportClient or NodeClient?
 If NodeClient, could you try with the TransportClient?
  
 -- 
 *David Pilato* | *Technical Advocate* | *Elasticsearch.com*
 @dadoonet https://twitter.com/dadoonet | @elasticsearchfr 
 https://twitter.com/elasticsearchfr


 Le 11 juillet 2014 à 11:14:59, xzer LR (xia...@gmail.com) a écrit:

  As a test result, I got exceptions when I tried to use the newest 
 1.2.2 java client to connect to a 1.0.3 cluster: 

  18:05:41.020 [elasticsearch[Slipstream][tra
 nsport_client_worker][T#1]{New I/O worker #1}] [INFO ] [] 
 org.elasticsearch.client.transport[105] - [Slipstream] failed to get 
 local cluster state for 
 [#transport#-1][e-note][inet[/192.168.200.81:9300]], 
 disconnecting...
 org.elasticsearch.transport.RemoteTransportException: 
 [server-cat][inet[/192.168.21.81:9300]][cluster/state]
 java.lang.IndexOutOfBoundsException: Readable byte limit exceeded: 48
 at org.elasticsearch.common.netty.buffer.AbstractChannelBuffer.
 readByte(AbstractChannelBuffer.java:236) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.ChannelBufferStreamInput.r
 eadByte(ChannelBufferStreamInput.java:132) 
 ~[elasticsearch-1.2.2.jar:na]
 at 
 org.elasticsearch.common.io.stream.StreamInput.readVInt(StreamInput.java:141)
  
 ~[elasticsearch-1.2.2.jar:na]
 at 
 org.elasticsearch.common.io.stream.StreamInput.readString(StreamInput.java:272)
  
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.common.io.stream.HandlesStreamInput.readSt
 ring(HandlesStreamInput.java:61) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.common.io.stream.StreamInput.readStringArr
 ay(StreamInput.java:362) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.action.admin.cluster.state.ClusterStateReq
 uest.readFrom(ClusterStateRequest.java:132) 
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.MessageChannelHandler.hand
 leRequest(MessageChannelHandler.java:209) 
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.MessageChannelHandler.mess
 ageReceived(MessageChannelHandler.java:109) 
 ~[elasticsearch-1.2.2.jar:na]

 I didn't find any metioned break change about this exceptioin.

 在 2014年7月4日星期五UTC+9下午3时31分07秒,David Pilato写道: 

  Well. It depends.

 1.0 is incompatible with 0.90
 1.2 should work with 1.x IIRC.

 From 1.0, we try to keep this compatible. If not, release notes will 
 tell you.

 --
 David ;-)
 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs

  
 Le 4 juil. 2014 à 07:09, xzer LR xia...@gmail.com a écrit :

  For some reasons, we have several separated elasticsearch clusters 
 for our front applicaitons. We want to upgrade our clusters' version to 
 the 
 newest version but apparently it is impossible to upgrade all the 
 clusters 
 at the same time, which means our single 

Re: Can I use the java client of newer version to connect to a old version server?

2014-07-11 Thread David Pilato
Are you using a TransportClient or NodeClient?
If NodeClient, could you try with the TransportClient?

-- 
David Pilato | Technical Advocate | Elasticsearch.com
@dadoonet | @elasticsearchfr


Le 11 juillet 2014 à 11:14:59, xzer LR (xiao...@gmail.com) a écrit:

As a test result, I got exceptions when I tried to use the newest 1.2.2 java 
client to connect to a 1.0.3 cluster:

18:05:41.020 [elasticsearch[Slipstream][transport_client_worker][T#1]{New I/O 
worker #1}] [INFO ] [] org.elasticsearch.client.transport[105] - [Slipstream] 
failed to get local cluster state for 
[#transport#-1][e-note][inet[/192.168.200.81:9300]], disconnecting...
org.elasticsearch.transport.RemoteTransportException: 
[server-cat][inet[/192.168.21.81:9300]][cluster/state]
java.lang.IndexOutOfBoundsException: Readable byte limit exceeded: 48
at 
org.elasticsearch.common.netty.buffer.AbstractChannelBuffer.readByte(AbstractChannelBuffer.java:236)
 ~[elasticsearch-1.2.2.jar:na]
at 
org.elasticsearch.transport.netty.ChannelBufferStreamInput.readByte(ChannelBufferStreamInput.java:132)
 ~[elasticsearch-1.2.2.jar:na]
at 
org.elasticsearch.common.io.stream.StreamInput.readVInt(StreamInput.java:141) 
~[elasticsearch-1.2.2.jar:na]
at 
org.elasticsearch.common.io.stream.StreamInput.readString(StreamInput.java:272) 
~[elasticsearch-1.2.2.jar:na]
at 
org.elasticsearch.common.io.stream.HandlesStreamInput.readString(HandlesStreamInput.java:61)
 ~[elasticsearch-1.2.2.jar:na]
at 
org.elasticsearch.common.io.stream.StreamInput.readStringArray(StreamInput.java:362)
 ~[elasticsearch-1.2.2.jar:na]
at 
org.elasticsearch.action.admin.cluster.state.ClusterStateRequest.readFrom(ClusterStateRequest.java:132)
 ~[elasticsearch-1.2.2.jar:na]
at 
org.elasticsearch.transport.netty.MessageChannelHandler.handleRequest(MessageChannelHandler.java:209)
 ~[elasticsearch-1.2.2.jar:na]
at 
org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:109)
 ~[elasticsearch-1.2.2.jar:na]

I didn't find any metioned break change about this exceptioin.

在 2014年7月4日星期五UTC+9下午3时31分07秒,David Pilato写道:
Well. It depends.

1.0 is incompatible with 0.90
1.2 should work with 1.x IIRC.

From 1.0, we try to keep this compatible. If not, release notes will tell you.

--
David ;-)
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs


Le 4 juil. 2014 à 07:09, xzer LR xia...@gmail.com a écrit :

For some reasons, we have several separated elasticsearch clusters for our 
front applicaitons. We want to upgrade our clusters' version to the newest 
version but apparently it is impossible to upgrade all the clusters at the same 
time, which means our single application have to connect to multiple clusters 
with different versions. 

My question is whether the elasticsearch java client has the ability to work 
correctly with an old version server?
--
You received this message because you are subscribed to the Google Groups 
elasticsearch group.
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to elasticsearc...@googlegroups.com.
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For more options, visit https://groups.google.com/d/optout.
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For more options, visit https://groups.google.com/d/optout.


Re: Can I use the java client of newer version to connect to a old version server?

2014-07-11 Thread Ivan Brusic
The code is suspicious since it has an explicit check for versions prior to
1.2

https://github.com/elasticsearch/elasticsearch/blob/master/src/main/java/org/elasticsearch/action/admin/cluster/state/ClusterStateRequest.java#L121-L124

Don't know much else about the code to comment further.

Cheers,

Ivan


On Fri, Jul 11, 2014 at 3:30 AM, xzer LR xiao...@gmail.com wrote:

 I am using TransportClient, the following is how I retrieve the client
 instance:

 Client client = new
 TransportClient(sb.build()).addTransportAddresses(esAddresses);

 在 2014年7月11日星期五UTC+9下午6时51分26秒,David Pilato写道:

 Are you using a TransportClient or NodeClient?
 If NodeClient, could you try with the TransportClient?

 --
 *David Pilato* | *Technical Advocate* | *Elasticsearch.com*
 @dadoonet https://twitter.com/dadoonet | @elasticsearchfr
 https://twitter.com/elasticsearchfr


 Le 11 juillet 2014 à 11:14:59, xzer LR (xia...@gmail.com) a écrit:

 As a test result, I got exceptions when I tried to use the newest 1.2.2
 java client to connect to a 1.0.3 cluster:

  18:05:41.020 [elasticsearch[Slipstream][transport_client_worker][T#1]{New
 I/O worker #1}] [INFO ] [] org.elasticsearch.client.transport[105] -
 [Slipstream] failed to get local cluster state for
 [#transport#-1][e-note][inet[/192.168.200.81:9300]], disconnecting...
 org.elasticsearch.transport.RemoteTransportException: [server-cat][inet[/
 192.168.21.81:9300]][cluster/state]
 java.lang.IndexOutOfBoundsException: Readable byte limit exceeded: 48
 at org.elasticsearch.common.netty.buffer.AbstractChannelBuffer.readByte(
 AbstractChannelBuffer.java:236) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.ChannelBufferStreamInput.readByte(
 ChannelBufferStreamInput.java:132) ~[elasticsearch-1.2.2.jar:na]
 at 
 org.elasticsearch.common.io.stream.StreamInput.readVInt(StreamInput.java:141)
 ~[elasticsearch-1.2.2.jar:na]
 at 
 org.elasticsearch.common.io.stream.StreamInput.readString(StreamInput.java:272)
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.common.io.stream.HandlesStreamInput.
 readString(HandlesStreamInput.java:61) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.common.io.stream.StreamInput.
 readStringArray(StreamInput.java:362) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.action.admin.cluster.state.
 ClusterStateRequest.readFrom(ClusterStateRequest.java:132)
 ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.MessageChannelHandler.handleRequest(
 MessageChannelHandler.java:209) ~[elasticsearch-1.2.2.jar:na]
 at org.elasticsearch.transport.netty.MessageChannelHandler.
 messageReceived(MessageChannelHandler.java:109)
 ~[elasticsearch-1.2.2.jar:na]

 I didn't find any metioned break change about this exceptioin.

 在 2014年7月4日星期五UTC+9下午3时31分07秒,David Pilato写道:

  Well. It depends.

 1.0 is incompatible with 0.90
 1.2 should work with 1.x IIRC.

 From 1.0, we try to keep this compatible. If not, release notes will
 tell you.

 --
 David ;-)
 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs


 Le 4 juil. 2014 à 07:09, xzer LR xia...@gmail.com a écrit :

  For some reasons, we have several separated elasticsearch clusters for
 our front applicaitons. We want to upgrade our clusters' version to the
 newest version but apparently it is impossible to upgrade all the clusters
 at the same time, which means our single application have to connect to
 multiple clusters with different versions.

 My question is whether the elasticsearch java client has the ability to
 work correctly with an old version server?
  --
 You received this message because you are subscribed to the Google
 Groups elasticsearch group.
 To unsubscribe from this group and stop receiving emails from it, send
 an email to elasticsearc...@googlegroups.com.
 To view this discussion on the web visit https://groups.google.com/d/
 msgid/elasticsearch/baa98ec5-ffcf-46f9-bfdd-7afbd213b19d%
 40googlegroups.com
 https://groups.google.com/d/msgid/elasticsearch/baa98ec5-ffcf-46f9-bfdd-7afbd213b19d%40googlegroups.com?utm_medium=emailutm_source=footer
 .
 For more options, visit https://groups.google.com/d/optout.

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 40googlegroups.com
 https://groups.google.com/d/msgid/elasticsearch/77e32825-812a-46c8-82b4-93a5e4b12788%40googlegroups.com?utm_medium=emailutm_source=footer
 .
 For more options, visit https://groups.google.com/d/optout.

  --
 You received this message because you are subscribed to the Google Groups
 elasticsearch group.
 To unsubscribe from this group and stop receiving emails from it, send an
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 To view this discussion on the web visit
 

Re: Can I use the java client of newer version to connect to a old version server?

2014-07-04 Thread David Pilato
Well. It depends.

1.0 is incompatible with 0.90
1.2 should work with 1.x IIRC.

From 1.0, we try to keep this compatible. If not, release notes will tell you.

--
David ;-)
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs


Le 4 juil. 2014 à 07:09, xzer LR xiao...@gmail.com a écrit :

For some reasons, we have several separated elasticsearch clusters for our 
front applicaitons. We want to upgrade our clusters' version to the newest 
version but apparently it is impossible to upgrade all the clusters at the same 
time, which means our single application have to connect to multiple clusters 
with different versions. 

My question is whether the elasticsearch java client has the ability to work 
correctly with an old version server?
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