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  2. janusgraph/gremlin server log : waiting for 1 actions to finish on table: janusgraph

Re: janusgraph/gremlin server log : waiting for 1 actions to finish on table: janusgraph

Misha Brukman <mbru...@...>
 

As the messages state, HBase client is using async processing, so the operations are processed in the background. This is saying how many actions are left to process, and what regions they are going to.

This may also imply that there are some stuck operations (which could be happening if you are sending too much traffic to HBase, for a given cluster size).

On Tue, Oct 3, 2017 at 2:22 AM, Dilan Ranasinghe <dila...@...> wrote:
Hello,

In my janusgraph/gremlin server log i see the following log entry constantly.

1966813 [gremlin-server-exec-1] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - #2, waiting for 1  actions to finish on table: janusgraph
1966817 [gremlin-server-exec-1] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Left over 1 task(s) are processed on server(s): [cmvd9k0n.dev.cm.par.emea.cib,16020,1498828536621]
1966817 [gremlin-server-exec-1] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Regions against which left over task(s) are processed: [janusgraph���,1506999859162.0d1c42dd1ca69d8db5ea703257e4b167.]
1966813 [gremlin-server-exec-6] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - #2, waiting for 1  actions to finish on table: janusgraph
1966817 [gremlin-server-exec-6] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Left over 1 task(s) are processed on server(s): [cmvd9k0n.dev.cm.par.emea.cib,16020,1498828536621]
1966817 [gremlin-server-exec-6] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Regions against which left over task(s) are processed: [janusgraph���,1506999859162.0d1c42dd1ca69d8db5ea703257e4b167.]
1966816 [gremlin-server-exec-3] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - #2, waiting for 74  actions to finish on table: janusgraph
1966822 [gremlin-server-exec-2] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - #2, waiting for 1  actions to finish on table: janusgraph
1966822 [gremlin-server-exec-2] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Left over 1 task(s) are processed on server(s): [cmvd9k0n.dev.cm.par.emea.cib,16020,1498828536621]
1966822 [gremlin-server-exec-2] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Regions against which left over task(s) are processed: [janusgraph���,1506999859162.0d1c42dd1ca69d8db5ea703257e4b167.]
1966840 [gremlin-server-exec-4] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - #2, waiting for 1  actions to finish on table: janusgraph
1966841 [gremlin-server-exec-4] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Left over 1 task(s) are processed on server(s): [cmvd9k0n.dev.cm.par.emea.cib,16020,1498828536621]
1966841 [gremlin-server-exec-4] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Regions against which left over task(s) are processed: [janusgraph���,1506999859162.0d1c42dd1ca69d8db5ea703257e4b167.]
1966876 [gremlin-server-exec-5] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - #2, waiting for 1  actions to finish on table: janusgraph
1966876 [gremlin-server-exec-5] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Left over 1 task(s) are processed on server(s): [cmvd9k0n.dev.cm.par.emea.cib,16020,1498828536621]
1966876 [gremlin-server-exec-5] INFO  org.apache.hadoop.hbase.client.AsyncProcess  - Regions against which left over task(s) are processed: [janusgraph���,1506999859162.0d1c42dd1ca69d8db5ea703257e4b167.]

Can you please tell me the meaning of this log entry?

Thanks and regards,
Dilan.

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