Hi Chris Vest,
Thanks for the response.
We are using the following code for Embedded Database Configuration.
GraphDatabaseAPI graphdb = (GraphDatabaseAPI) new
GraphDatabaseFactory().newEmbeddedDatabaseBuilder(DB_PATH).
setConfig(GraphDatabaseSettings.node_keys_indexable,
prop.getProperty("node_keys_indexable")).
setConfig(GraphDatabaseSettings.node_auto_indexing,
prop.getProperty("node_auto_indexing")).
setConfig(GraphDatabaseSettings.cache_type,
prop.getProperty("cache_type")).
setConfig(GraphDatabaseSettings.allow_store_upgrade,
prop.getProperty("allow_store_upgrade")).
setConfig(GraphDatabaseSettings.nodestore_propertystore_mapped_memory_size,
prop.getProperty("nodestore_propertystore_mapped_memory_size")).
setConfig(GraphDatabaseSettings.nodestore_mapped_memory_size,
prop.getProperty("nodestore_mapped_memory_size")).
setConfig(GraphDatabaseSettings.relationshipstore_mapped_memory_size,
prop.getProperty("relationshipstore_mapped_memory_size")).
setConfig(GraphDatabaseSettings.strings_mapped_memory_size,
prop.getProperty("strings_mapped_memory_size")).
setConfig(GraphDatabaseSettings.relationship_auto_indexing,
prop.getProperty("relationship_auto_indexing")).
newGraphDatabase();
In GraphDatabaseSettings, We are unable to find PropertyStore Setting. Plz
correct me if i understand your suggestions wrongly.
I have make the cache_type = none. But the issue still continues.
Best Regards,
Kannan
On Friday, 20 March 2015 08:37:46 UTC, Chris Vest wrote:
>
> Try moving some of the mapped memory from the nodestore and
> relationshipstore to the propertystore, so they better match the size
> ratios of the files.
> Also increase the size of your Java heap. I think the program might be
> suffering from premature promotion.
> You can set cache_type=none if the GC pauses are still too high, but this
> will probably reduce the performance of the database, which may or may not
> be acceptable for you.
> You are configuring nodestore_mapped_memory_size twice, not that it
> matters much. I also recommend upgrading to 1.9.9 instead of 1.9.8, though
> it won’t make a difference for GC.
>
> --
> Chris Vest
> System Engineer, Neo Technology
> [ skype: mr.chrisvest, twitter: chvest ]
>
>
> On 20 Mar 2015, at 08:56, S C Kannan <[email protected] <javascript:>>
> wrote:
>
> Hi All,
>
> We are Neo4j for last 2 years and currently we upgrade from 1.8.3 to
> 1.9.8.Since we upgraded, we are seeing the follow info in messages.log file.
>
> 2015-03-20 04:37:54.242+0000 INFO [o.n.k.EmbeddedGraphDatabase]: GC
> Monitor: Application threads blocked for an additional 400ms [total block
> time: 0.792s]
> 2015-03-20 04:37:57.888+0000 INFO [o.n.k.EmbeddedGraphDatabase]: GC
> Monitor: Application threads blocked for an additional 540ms [total block
> time: 1.332s]
> 2015-03-20 04:38:07.293+0000 INFO [o.n.k.EmbeddedGraphDatabase]: GC
> Monitor: Application threads blocked for an additional 475ms [total block
> time: 1.807s]
> 2015-03-20 04:38:15.106+0000 INFO [o.n.k.EmbeddedGraphDatabase]: GC
> Monitor: Application threads blocked for an additional 439ms [total block
> time: 2.246s]
>
>
> We are using Embedded Neo4j DB. Our Neo4j Configuration file details are
> as follows,
>
> node_keys_indexable=token,serialNumber,batchNo,promoId
>>
> node_auto_indexing=true
>> cache_type=gcr
>> nodestore_propertystore_mapped_memory_size=150M
>> nodestore_mapped_memory_size=100M
>> relationshipstore_mapped_memory_size=500M
>> strings_mapped_memory_size=150M
>> nodestore_mapped_memory_size=150M
>> relationship_auto_indexing=true
>>
>
> Our Neo4j DB properties are as follows,
> neostore.nodestore.db -- 18M
> neostore.nodestore.db.id -- 1.2K
> neostore.propertystore.db -- 316M
> neostore.propertystore.db.arrays -- 128
> neostore.propertystore.db.arrays.id -- 9
> neostore.propertystore.db.id -- 57
> neostore.propertystore.db.index -- 4.2K
> neostore.propertystore.db.index.id -- 9
> neostore.propertystore.db.index.keys -- 18K
> neostore.propertystore.db.index.keys.id -- 9
> neostore.propertystore.db.strings -- 107M
> neostore.propertystore.db.strings.id -- 17
> neostore.relationshipstore.db -- 252M
> neostore.relationshipstore.db.id -- 321
> neostore.relationshiptypestore.db -- 795
> neostore.relationshiptypestore.db.id -- 9
> neostore.relationshiptypestore.db.names -- 6.0K
> neostore.relationshiptypestore.db.names.id -- 9
> nioneo_logical.log.1 -- 1.3K
> nioneo_logical.log.active -- 4
>
> We have around 2M Nodes and 8M properties in our Database. We are
> strugged for around 2 days and we have tried all options provided on forum.
> Kindly help to sort it out.
>
> With Regards,
> Kannan
>
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