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https://issues.apache.org/jira/browse/PHOENIX-2098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14621860#comment-14621860
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ASF GitHub Bot commented on PHOENIX-2098:
-----------------------------------------
Github user anilgupta84 commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/98#discussion_r34331815
--- Diff:
phoenix-pig/src/main/java/org/apache/phoenix/pig/udf/ReserveNSequence.java ---
@@ -0,0 +1,88 @@
+/**
+ *
+ */
+package org.apache.phoenix.pig.udf;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE
+ * file distributed with this work for additional information regarding
copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the "License"); you may
not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0 Unless required by
+ * applicable law or agreed to in writing, software distributed under the
License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+import java.io.IOException;
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.phoenix.mapreduce.util.ConnectionUtil;
+import org.apache.pig.EvalFunc;
+import org.apache.pig.data.Tuple;
+import org.apache.pig.impl.util.UDFContext;
+
+import com.google.common.base.Preconditions;
+
+/**
+ * UDF to Reserve a chunk of numbers for a given sequence
+ *
+ * @note The way this UDF is invoked we open a new connection for every
tuple row. The UDF will not perform well on
--- End diff --
I am not an expert at Pig or its UDF's.
Isnt there anyway to pass Connection object in UDF rather than creating it
for every row? If you cant pass Connection, can you make Connection an instance
variable of UDF class?
Is creating new connection only reason for its non-scalability?
@JamesRTaylor Do you think, this non-scalability might lead to bad user
experience in production clusters?
> Pig Udf that given a count Reserve chunks of numbers for a sequence
> -------------------------------------------------------------------
>
> Key: PHOENIX-2098
> URL: https://issues.apache.org/jira/browse/PHOENIX-2098
> Project: Phoenix
> Issue Type: New Feature
> Reporter: Siddhi Mehta
> Assignee: Siddhi Mehta
>
> Following up on the Jira to bulk reserve sequence's. PHOENIX-1954.
> Adding a UDF to enable bulk reserve of sequence's from Pig
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