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Merge from master

This commit is contained in:
Shengliang Guan 2021-06-03 21:23:41 +08:00
parent 8510972602 761a7e8f37
commit 77f208001a
13 changed files with 492 additions and 15 deletions
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10
src/client/src/tscSQLParser.c
View File

@ -5828,11 +5828,17 @@ static int32_t setKeepOption(SSqlCmd* pCmd, SCreateDbMsg* pMsg, SCreateDbInfo* p
tVariantListItem* p0 = taosArrayGet(pKeep, 0);
switch (s) {
case 1: {
if ((int32_t)p0->pVar.i64 <= 0) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg);
}
pMsg->daysToKeep = htonl((int32_t)p0->pVar.i64);
}
break;
case 2: {
tVariantListItem* p1 = taosArrayGet(pKeep, 1);
if ((int32_t)p0->pVar.i64 <= 0 || (int32_t)p1->pVar.i64 <= 0) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg);
}
pMsg->daysToKeep = htonl((int32_t)p0->pVar.i64);
pMsg->daysToKeep1 = htonl((int32_t)p1->pVar.i64);
break;
@ -5841,6 +5847,10 @@ static int32_t setKeepOption(SSqlCmd* pCmd, SCreateDbMsg* pMsg, SCreateDbInfo* p
tVariantListItem* p1 = taosArrayGet(pKeep, 1);
tVariantListItem* p2 = taosArrayGet(pKeep, 2);
if ((int32_t)p0->pVar.i64 <= 0 || (int32_t)p1->pVar.i64 <= 0 || (int32_t)p2->pVar.i64 <= 0) {
return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg);
}
pMsg->daysToKeep = htonl((int32_t)p0->pVar.i64);
pMsg->daysToKeep1 = htonl((int32_t)p1->pVar.i64);
pMsg->daysToKeep2 = htonl((int32_t)p2->pVar.i64);

16
src/client/src/tscStream.c
View File

@ -110,7 +110,8 @@ static void doLaunchQuery(void* param, TAOS_RES* tres, int32_t code) {
// failed to get table Meta or vgroup list, retry in 10sec.
if (code == TSDB_CODE_SUCCESS) {
tscTansformFuncForSTableQuery(pQueryInfo);
tscDebug("0x%"PRIx64" stream:%p started to query table:%s", pSql->self, pStream, tNameGetTableName(&pTableMetaInfo->name));
tscDebug("0x%"PRIx64" stream:%p, start stream query on:%s QueryInfo->skey=%"PRId64" ekey=%"PRId64" ", pSql->self, pStream, tNameGetTableName(&pTableMetaInfo->name), pQueryInfo->window.skey, pQueryInfo->window.ekey);
pQueryInfo->command = TSDB_SQL_SELECT;
@ -164,7 +165,11 @@ static void tscProcessStreamTimer(void *handle, void *tmrId) {
if (etime > pStream->etime) {
etime = pStream->etime;
} else if (pStream->interval.intervalUnit != 'y' && pStream->interval.intervalUnit != 'n') {
if(pStream->stime == INT64_MIN) {
etime = taosTimeTruncate(etime, &pStream->interval, pStream->precision);
} else {
etime = pStream->stime + (etime - pStream->stime) / pStream->interval.interval * pStream->interval.interval;
}
} else {
etime = taosTimeTruncate(etime, &pStream->interval, pStream->precision);
}
@ -353,8 +358,8 @@ static void tscSetRetryTimer(SSqlStream *pStream, SSqlObj *pSql, int64_t timer)
tscDebug("0x%"PRIx64" stream:%p, next start at %" PRId64 "(ts window ekey), in %" PRId64 " ms. delay:%" PRId64 "ms qrange %" PRId64 "-%" PRId64, pStream->pSql->self, pStream,
now + timer, timer, delay, pStream->stime, etime);
} else {
tscDebug("0x%"PRIx64" stream:%p, next start at %" PRId64 "(ts window ekey), in %" PRId64 " ms. delay:%" PRId64 "ms qrange %" PRId64 "-%" PRId64, pStream->pSql->self, pStream,
pStream->stime, timer, delay, pStream->stime - pStream->interval.interval, pStream->stime - 1);
tscDebug("0x%"PRIx64" stream:%p, next start at %" PRId64 " - %" PRId64 " end, in %" PRId64 "ms. delay:%" PRId64 "ms qrange %" PRId64 "-%" PRId64, pStream->pSql->self, pStream,
pStream->stime, pStream->etime, timer, delay, pStream->stime - pStream->interval.interval, pStream->stime - 1);
}
pSql->cmd.command = TSDB_SQL_SELECT;
@ -663,6 +668,11 @@ TAOS_STREAM *taos_open_stream_withname(TAOS *taos, const char* dstTable, const c
STscObj *pObj = (STscObj *)taos;
if (pObj == NULL || pObj->signature != pObj) return NULL;
if(fp == NULL){
tscError(" taos_open_stream api fp param must not NULL.");
return NULL;
}
SSqlObj *pSql = (SSqlObj *)calloc(1, sizeof(SSqlObj));
if (pSql == NULL) {
return NULL;

2
src/mnode/src/mnodeDnode.c
View File

@ -799,7 +799,7 @@ static int32_t mnodeGetDnodeMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pC
pSchema[cols].bytes = htons(pShow->bytes[cols]);
cols++;
pShow->bytes[cols] = 40 + VARSTR_HEADER_SIZE;
pShow->bytes[cols] = TSDB_EP_LEN + VARSTR_HEADER_SIZE;
pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
strcpy(pSchema[cols].name, "end_point");
pSchema[cols].bytes = htons(pShow->bytes[cols]);

2
src/mnode/src/mnodeMnode.c
View File

@ -485,7 +485,7 @@ static int32_t mnodeGetMnodeMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pC
pSchema[cols].bytes = htons(pShow->bytes[cols]);
cols++;
pShow->bytes[cols] = 40 + VARSTR_HEADER_SIZE;
pShow->bytes[cols] = TSDB_EP_LEN + VARSTR_HEADER_SIZE;
pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
strcpy(pSchema[cols].name, "end_point");
pSchema[cols].bytes = htons(pShow->bytes[cols]);

44
tests/pytest/alter/alter_keep_exception.py Normal file
View File

@ -0,0 +1,44 @@
###################################################################
# Copyright (c) 2016 by TAOS Technologies, Inc.
# All rights reserved.
#
# This file is proprietary and confidential to TAOS Technologies.
# No part of this file may be reproduced, stored, transmitted,
# disclosed or used in any form or by any means other than as
# expressly provided by the written permission from Jianhui Tao
#
###################################################################
# -*- coding: utf-8 -*-
#TODO: after TD-4518 and TD-4510 is resolved, add the exception test case for these situations
import sys
from util.log import *
from util.cases import *
from util.sql import *
class TDTestCase:
def init(self, conn, logSql):
tdLog.debug("start to execute %s" % __file__)
tdSql.init(conn.cursor(), logSql)
def run(self):
tdSql.prepare()
tdSql.error('alter database keep db 0')
tdSql.error('alter database keep db -10')
tdSql.error('alter database keep db -2147483648')
#this is the test case problem for keep overflow
#the error is caught, but type is wrong.
#TODO: can be solved in the future, but improvement is minimal
tdSql.error('alter database keep db -2147483649')
def stop(self):
tdSql.close()
tdLog.success("%s successfully executed" % __file__)
tdCases.addWindows(__file__, TDTestCase())
tdCases.addLinux(__file__, TDTestCase())

1
tests/pytest/fulltest.sh
View File

@ -339,4 +339,5 @@ python3 test.py -f tools/taosdemoAllTest/taosdemoTestQueryWithJson.py
python3 ./test.py -f tag_lite/drop_auto_create.py
python3 test.py -f insert/insert_before_use_db.py
python3 test.py -f alter/alter_cacheLastRow.py
python3 test.py -f alter/alter_keep_exception.py
#======================p4-end===============

10
tests/pytest/query/queryJoin.py
View File

@ -176,7 +176,15 @@ class TDTestCase:
tdSql.error("select count(join_mt0.c1), first(join_mt0.c1), first(join_mt1.c9) from join_mt0, join_mt1 where join_mt0.t1=join_mt1.t1 and join_mt0.ts=join_mt1.ts interval(10a) group by join_mt0.t1, join_mt0.t2 order by join_mt0.t1 desc slimit 3")
tdSql.error("select count(join_mt0.c1), first(join_mt0.c1) from join_mt0, join_mt1 where join_mt0.t1=join_mt1.t1 and join_mt0.ts=join_mt1.ts interval(10a) group by join_mt0.t1, join_mt0.t2, join_mt1.t1 order by join_mt0.ts desc, join_mt1.ts asc limit 10;")
tdSql.error("select join_mt1.c1,join_mt0.c1 from join_mt1,join_mt0 where join_mt1.ts = join_mt0.ts and join_mt1.t1 = join_mt0.t1 order by t")
#TD-4458 join on database which using precision us
tdSql.execute("create database test_join_us precision 'us'")
tdSql.execute("use test_join_us")
ts = 1538548685000000
for i in range(2):
tdSql.execute("create table t%d (ts timestamp, i int)"%i)
tdSql.execute("insert into t%d values(%d,11)(%d,12)"%(i,ts,ts+1))
tdSql.query("select t1.ts from t0,t1 where t0.ts = t1.ts")
tdSql.checkData(0,0,'2018-10-03 14:38:05.000000')
def stop(self):
tdSql.close()

181
tests/pytest/tools/taosdemoAllTest/insert-drop-exist-auto-N00.json Normal file
View File

@ -0,0 +1,181 @@
{
"filetype": "insert",
"cfgdir": "/etc/taos",
"host": "127.0.0.1",
"port": 6030,
"user": "root",
"password": "taosdata",
"thread_count": 4,
"thread_count_create_tbl": 4,
"result_file": "./insert_res.txt",
"confirm_parameter_prompt": "no",
"insert_interval": 0,
"interlace_rows": 100,
"num_of_records_per_req": 100,
"databases": [{
"dbinfo": {
"name": "db",
"drop": "no",
"replica": 1,
"days": 10,
"cache": 16,
"blocks": 8,
"precision": "ms",
"keep": 3650,
"minRows": 100,
"maxRows": 4096,
"comp":2,
"walLevel":1,
"cachelast":0,
"quorum":1,
"fsync":3000,
"update": 0
},
"super_tables": [{
"name": "stb",
"child_table_exists":"no",
"auto_create_table": "123",
"childtable_count": 20,
"childtable_prefix": "NN123_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"no",
"auto_create_table": "no",
"childtable_count": 20,
"childtable_prefix": "NNN_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"no",
"auto_create_table": "yes",
"childtable_count": 20,
"childtable_prefix": "NNY_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"yes",
"auto_create_table": "123",
"childtable_count": 20,
"childtable_prefix": "NY123_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"yes",
"auto_create_table": "no",
"childtable_count": 20,
"childtable_prefix": "NYN_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"yes",
"auto_create_table": "yes",
"childtable_count": 20,
"childtable_prefix": "NYY_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
}
]
}]
}

181
tests/pytest/tools/taosdemoAllTest/insert-drop-exist-auto-Y00.json Normal file
View File

@ -0,0 +1,181 @@
{
"filetype": "insert",
"cfgdir": "/etc/taos",
"host": "127.0.0.1",
"port": 6030,
"user": "root",
"password": "taosdata",
"thread_count": 4,
"thread_count_create_tbl": 4,
"result_file": "./insert_res.txt",
"confirm_parameter_prompt": "no",
"insert_interval": 0,
"interlace_rows": 100,
"num_of_records_per_req": 100,
"databases": [{
"dbinfo": {
"name": "db",
"drop": "yes",
"replica": 1,
"days": 10,
"cache": 16,
"blocks": 8,
"precision": "ms",
"keep": 3650,
"minRows": 100,
"maxRows": 4096,
"comp":2,
"walLevel":1,
"cachelast":0,
"quorum":1,
"fsync":3000,
"update": 0
},
"super_tables": [{
"name": "stb",
"child_table_exists":"no",
"auto_create_table": "123",
"childtable_count": 20,
"childtable_prefix": "YN123_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"no",
"auto_create_table": "no",
"childtable_count": 20,
"childtable_prefix": "YNN_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"no",
"auto_create_table": "yes",
"childtable_count": 20,
"childtable_prefix": "YNY_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"yes",
"auto_create_table": "123",
"childtable_count": 20,
"childtable_prefix": "YY123_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"yes",
"auto_create_table": "no",
"childtable_count": 20,
"childtable_prefix": "YYN_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
},{
"name": "stb",
"child_table_exists":"yes",
"auto_create_table": "yes",
"childtable_count": 20,
"childtable_prefix": "YYY_",
"batch_create_tbl_num": 100,
"data_source": "rand",
"insert_mode": "taosc",
"insert_rows": 5,
"childtable_limit": 40,
"childtable_offset":0,
"interlace_rows": 0,
"insert_interval":0,
"max_sql_len": 1024000,
"disorder_ratio": 0,
"disorder_range": 1000,
"timestamp_step": 10,
"start_timestamp": "now",
"sample_format": "csv",
"sample_file": "./sample.csv",
"tags_file": "",
"columns": [{"type": "INT"}],
"tags": [{"type": "TINYINT"}]
}
]
}]
}

46
tests/pytest/tools/taosdemoAllTest/taosdemoTestInsertWithJson.py
View File

@ -238,10 +238,12 @@ class TDTestCase:
tdSql.execute("use dbtest123")
tdSql.query("select col2 from stb0")
tdSql.checkData(0, 0, 2147483647)
tdSql.query("select t1 from stb1")
tdSql.checkData(0, 0, -127)
tdSql.query("select t2 from stb1")
tdSql.checkData(1, 0, 126)
tdSql.query("select * from stb1 where t1=-127")
tdSql.checkRows(20)
tdSql.query("select * from stb1 where t2=127")
tdSql.checkRows(10)
tdSql.query("select * from stb1 where t2=126")
tdSql.checkRows(10)
# insert: test interlace parament
os.system("%staosdemo -f tools/taosdemoAllTest/insert-interlace-row.json -y " % binPath)
@ -252,6 +254,42 @@ class TDTestCase:
tdSql.checkData(0, 0, 15000)
# # insert: auto_create
tdSql.execute('drop database if exists db')
tdSql.execute('create database db')
tdSql.execute('use db')
os.system("%staosdemo -y -f tools/taosdemoAllTest/insert-drop-exist-auto-N00.json " % binPath) # drop = no, child_table_exists, auto_create_table varies
tdSql.execute('use db')
tdSql.query('show tables like \'NN123%\'') #child_table_exists = no, auto_create_table varies = 123
tdSql.checkRows(20)
tdSql.query('show tables like \'NNN%\'') #child_table_exists = no, auto_create_table varies = no
tdSql.checkRows(20)
tdSql.query('show tables like \'NNY%\'') #child_table_exists = no, auto_create_table varies = yes
tdSql.checkRows(20)
tdSql.query('show tables like \'NYN%\'') #child_table_exists = yes, auto_create_table varies = no
tdSql.checkRows(0)
tdSql.query('show tables like \'NY123%\'') #child_table_exists = yes, auto_create_table varies = 123
tdSql.checkRows(0)
tdSql.query('show tables like \'NYY%\'') #child_table_exists = yes, auto_create_table varies = yes
tdSql.checkRows(0)
tdSql.execute('drop database if exists db')
os.system("%staosdemo -y -f tools/taosdemoAllTest/insert-drop-exist-auto-Y00.json " % binPath) # drop = yes, child_table_exists, auto_create_table varies
tdSql.execute('use db')
tdSql.query('show tables like \'YN123%\'') #child_table_exists = no, auto_create_table varies = 123
tdSql.checkRows(20)
tdSql.query('show tables like \'YNN%\'') #child_table_exists = no, auto_create_table varies = no
tdSql.checkRows(20)
tdSql.query('show tables like \'YNY%\'') #child_table_exists = no, auto_create_table varies = yes
tdSql.checkRows(20)
tdSql.query('show tables like \'YYN%\'') #child_table_exists = yes, auto_create_table varies = no
tdSql.checkRows(20)
tdSql.query('show tables like \'YY123%\'') #child_table_exists = yes, auto_create_table varies = 123
tdSql.checkRows(20)
tdSql.query('show tables like \'YYY%\'') #child_table_exists = yes, auto_create_table varies = yes
tdSql.checkRows(20)
os.system("rm -rf ./insert_res.txt")
os.system("rm -rf tools/taosdemoAllTest/taosdemoTestInsertWithJson.py.sql")

4
tests/script/general/db/alter_option.sim
View File

@ -129,8 +129,8 @@ sql alter database db keep 20
sql_error alter database db keep 10
sql_error alter database db keep 9
sql_error alter database db keep 1
sql alter database db keep 0
sql alter database db keep -1
sql_error alter database db keep 0
sql_error alter database db keep -1
sql_error alter database db keep 365001
print ============== step cache

4
tests/script/general/db/topic1.sim
View File

@ -385,8 +385,8 @@ sql alter database db keep 20
sql_error alter database db keep 10
sql_error alter database db keep 9
sql_error alter database db keep 1
sql alter database db keep 0
sql alter database db keep -1
sql_error alter database db keep 0
sql_error alter database db keep -1
sql_error alter database db keep 365001
sql_error alter topic db keep 40

4
tests/test-all.sh
View File

@ -233,6 +233,10 @@ totalExampleFailed=0
if [ "${OS}" == "Linux" ]; then
corepath=`grep -oP '.*(?=core_)' /proc/sys/kernel/core_pattern||grep -oP '.*(?=core-)' /proc/sys/kernel/core_pattern`
if [ -z "$corepath" ];then
echo "/coredump/core_%e_%p_%t" > /proc/sys/kernel/core_pattern || echo "Permission denied"
corepath="/coredump/"
fi
fi
if [ "$2" != "jdbc" ] && [ "$2" != "python" ] && [ "$2" != "unit" ] && [ "$2" != "example" ]; then