This is in my database folder databases/Statistic/distributed-config.json I
didn't edit it, it's generated after node2 is started and join the db
cluster. I started node1, created the plocal document database with schema,
then started node2. They both join the cluster successfully and i get this
JSON config.
{
"@type": "d",
"@version": 0,
"version": 1,
"autoDeploy": true,
"hotAlignment": false,
"executionMode": "undefined",
"readQuorum": 1,
"writeQuorum": 2,
"failureAvailableNodesLessQuorum": false,
"readYourWrites": true,
"clusters": {
"@type": "d",
"@version": 0,
"internal": {
"@type": "d",
"@version": 0
},
"index": {
"@type": "d",
"@version": 0
},
"*": {
"@type": "d",
"@version": 0,
"servers": [
"node1",
"node2",
"<NEW_NODE>"
]
},
"commentanalysis": {
"@type": "d",
"@version": 0,
"servers": [
"node1",
"node2",
"<NEW_NODE>"
]
},
"ouser_node2": {
"@type": "d",
"@version": 0,
"servers": [
"node2",
"node1",
"<NEW_NODE>"
]
},
"_studio_node2": {
"@type": "d",
"@version": 0,
"servers": [
"node2",
"node1",
"<NEW_NODE>"
]
},
"orole_node2": {
"@type": "d",
"@version": 0,
"servers": [
"node2",
"node1",
"<NEW_NODE>"
]
},
"ofunction_node2": {
"@type": "d",
"@version": 0,
"servers": [
"node2",
"node1",
"<NEW_NODE>"
]
},
"orids_node2": {
"@type": "d",
"@version": 0,
"servers": [
"node2",
"node1",
"<NEW_NODE>"
]
},
"oschedule_node2": {
"@type": "d",
"@version": 0,
"servers": [
"node2",
"node1",
"<NEW_NODE>"
]
}
}
}
On Wednesday, 28 January 2015 16:44:40 UTC+8, Lvc@ wrote:
>
> Hi Leng,
> Can you share your distributed cfg and the exact line of code you use to
> do the save?
>
> Lvc@
>
>
> On 28 January 2015 at 03:20, Leng Sheng Hong <[email protected]
> <javascript:>> wrote:
>
>> Yes, but this seems to be the same as 1.7? I was wondering now what does
>> auto sharding means in 2.0, so inserting to Class MyTable will not
>> automatically goes to the nodes connected in round robin fashion? but
>> always goes to the default node? For me, it always goes to the other node
>> rather than the default node. So I am a bit confused with how distributed
>> sharding works when inserting to a Class without specifying a cluster.
>>
>> On Wednesday, 28 January 2015 06:13:12 UTC+8, Lvc@ wrote:
>>>
>>> Have you read http://www.orientechnologies.com/docs/last/orientdb.wiki/
>>> Distributed-Sharding.html ?
>>>
>>> On 27 January 2015 at 05:53, Leng Sheng Hong <[email protected]> wrote:
>>>
>>>> I have a question on how auto sharding work. This is my assumption on
>>>> v2.0 using the default configurations:
>>>>
>>>> 1) setup database on node 1, start in distributed mode
>>>> 2) start node 2 in distributed mode
>>>> 3) node 1 will send and deploy DB on node 2
>>>> 4) app insert a new document of a class into the DB will automatically
>>>> go into node 1, then node 2 in round robin fashion.
>>>>
>>>> when i look at the databases/mydb/distributed-config.json it contains
>>>> new clusters of node 2 which is handled on both node??
>>>> {
>>>> "@type": "d",
>>>> "@version": 0,
>>>> "version": 14,
>>>> "autoDeploy": true,
>>>> "hotAlignment": false,
>>>> "executionMode": "undefined",
>>>> "readQuorum": 1,
>>>> "writeQuorum": 2,
>>>> "failureAvailableNodesLessQuorum": false,
>>>> "readYourWrites": true,
>>>> "clusters": {
>>>> "@type": "d",
>>>> "@version": 0,
>>>> "internal": {
>>>> "@type": "d",
>>>> "@version": 0
>>>> },
>>>> "index": {
>>>> "@type": "d",
>>>> "@version": 0
>>>> },
>>>> "*": {
>>>> "@type": "d",
>>>> "@version": 0,
>>>> "servers": [
>>>> "node1",
>>>> "node2",
>>>> "<NEW_NODE>"
>>>> ]
>>>> },
>>>> "orole_node2": {
>>>> "@type": "d",
>>>> "@version": 0,
>>>> "servers": [
>>>> "node1",
>>>> "node2",
>>>> "<NEW_NODE>"
>>>> ]
>>>> },
>>>> "mytable_node2": {
>>>> "@type": "d",
>>>> "@version": 0,
>>>> "servers": [
>>>> "node1",
>>>> "node2",
>>>> "<NEW_NODE>"
>>>> ]
>>>> },
>>>>
>>>>
>>>> Now if i tried to insert 10 records from my app with the Java api
>>>> document.save() into mytable
>>>> all the records i get is saved with cluster ID of node2.
>>>>
>>>> So, how is this data distributed? It never uses node1 at all.
>>>>
>>>>
>>>>
>>>> --
>>>>
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>>>
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