Memory leak using 10.2.0.3 OCCI client on Solaris 10

Hi,
We are using OCCI client libraries to connect our C++ program to the Oracle Database. The program does a lot of selects, inserts and SP calls.
Oracle client and Oracle server both are 10.2.0.3 on Solaris 10.
We have been observing a memory leak of 4M bytes in the C++ program every few minutes since last few days. On debugging through Purify, libumem, and Sun Studio 12, we finally managed to narrow down the problem to the Oracle client library OCI calls.
The Sun Studio leak check shows the following -
Leak #37, Instances = 157, Bytes Leaked = 655004
kpummapg + 0x00000098
kghgex + 0x00000648
kghfnd + 0x000005BC
kghalo + 0x00000A6C
kghgex + 0x000003BC
kghfnd + 0x000005BC
kghalo + 0x00000A6C
kghgex + 0x000003BC
kghfnd + 0x000005BC
kghalo + 0x00000A6C
kpuhhalo + 0x00000558
kpugdesc + 0x00000AD4
kpugparm + 0x00000374
COCIResultSet::InterpretData() + 0x000001B4
COCIResultSet::COCIResultSet(COCIStatement*,OCIStmt*,OCIError*) + 0x000000A4
COCIStatement::PrepareResult() + 0x00000190
A select is executed, a resultset is fetched and the resultset is immeidately closed. The same piece of code has been running at various production systems without any problems. Most of the other sites are either 10.2.0.4 or 9i.
On searching Metalink and various other forums, I found similar issues faced in 10.2.0.1.
Could someone advise if there are any bugs corresponding to this which have been closed. Would upgrading to 10.2.0.4 solve the problem?
Thanks.

Please ... one post and one post only in the group most appropriate to your inquiry. Please open an SR at metalink.

Similar Messages

  • Memory leak using 10.2.0.3 OCI client on Solaris

    Hi,
    We are using OCI client libraries to connect our C++ program to the Oracle Database. The program does a lot of selects, inserts and SP calls.
    Oracle client and Oracle server both are 10.2.0.3.
    We have been observing a memory leak of 4M bytes in the C++ program every few minutes since last few days. On debugging through Purify, libumem, and Sun Studio 12, we finally managed to narrow down the problem to the Oracle client library OCI calls.
    The Sun Studio leak check shows the following -
    Leak #37, Instances = 157, Bytes Leaked = 655004
    kpummapg + 0x00000098
    kghgex + 0x00000648
    kghfnd + 0x000005BC
    kghalo + 0x00000A6C
    kghgex + 0x000003BC
    kghfnd + 0x000005BC
    kghalo + 0x00000A6C
    kghgex + 0x000003BC
    kghfnd + 0x000005BC
    kghalo + 0x00000A6C
    kpuhhalo + 0x00000558
    kpugdesc + 0x00000AD4
    kpugparm + 0x00000374
    COCIResultSet::InterpretData() + 0x000001B4
    COCIResultSet::COCIResultSet(COCIStatement*,OCIStmt*,OCIError*) + 0x000000A4
    COCIStatement::PrepareResult() + 0x00000190
    A select is executed, a resultset is fetched and the resultset is immeidately closed. The same piece of code has been running at various production systems without any problems. Most of the other sites are either 10.2.0.4 or 9i.
    On searching Metalink and various other forums, I found similar issues faced in 10.2.0.1.
    Could someone advise if there are any bugs corresponding to this which have been closed. Would upgrading to 10.2.0.4 solve the problem?
    Thanks.

    Hi,
    Apparently a similar issue is being discussed over here:
    Re: Memory Leak
    Hope it helps.
    Regards,
    Naveed.

  • Bug:4705928 PLSQL: Memory leak using small varrays

    We have Oracle version 10.2.0.1.0
    We have a problem with a procedure.
    In our scenario we make use of VARRAY in the procedure to pass some filter parameters to a select distinct querying a view made on three tables.
    Unfotunately not always execution it is successful.
    Sometimes it returns wrong value (0 for the count parameter), sometimes (rarely) the server stops working.
    We suspect that this is caused by a bug fixed in versione 10.2.0.3.0
    Bug:4705928 PLSQL: Memory leak using small varrays when trimming the whole collection and inserting into it in a loop
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    while in the second procedure (spProductCount2) parameters are passed directly into the statement without varray
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    On the other hand on another server 10.2.0.1.0 we never have this problem.
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    Turning the first one to dedicated mode makes the bugs disapear.
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    In the sample there are the three table with all constraints, the view, tha varray custom type, the function and the two procedures.
    Is there someone that may examine our sample and tell us if the pl/sql code corresponds to the bug desciption.
    We also want to know if it's possibile that the same server running under different mode (SHARED/DEDICATED) doesn't behave the same way.
    The tables:
    --Products
    CREATE TABLE "Products" (
         "Image" BLOB
         , "CatalogId" RAW(16)
         , "ProductId" RAW(16)
         , "MnemonicId" NVARCHAR2(50) DEFAULT ''
         , "ProductParentId" RAW(16)
    ALTER TABLE "Products"
         ADD CONSTRAINT "NN_Products_M04" CHECK ("CatalogId" IS NOT NULL)
    ALTER TABLE "Products"
         ADD CONSTRAINT "NN_Products_M05" CHECK ("ProductId" IS NOT NULL)
    ALTER TABLE "Products"
    ADD CONSTRAINT "PK_Products"
    PRIMARY KEY ("ProductId")
    CREATE INDEX "IX_Products"
    ON "Products" ("CatalogId", "MnemonicId")
    CREATE UNIQUE INDEX "UK_Products"
    ON "Products" (DECODE("MnemonicId", NULL, NULL, RAWTOHEX("CatalogId") || "MnemonicId"))
    --Languages
    CREATE TABLE "Languages" (
         "Description" NVARCHAR2(250)
         , "IsStandard" NUMBER(1)
         , "LanguageId" RAW(16)
         , "MnemonicId" NVARCHAR2(12)
    ALTER TABLE "Languages"
         ADD CONSTRAINT "NN_Languages_M01" CHECK ("LanguageId" IS NOT NULL)
    ALTER TABLE "Languages"
         ADD CONSTRAINT "NN_Languages_M05" CHECK ("MnemonicId" IS NOT NULL)
    ALTER TABLE "Languages"
    ADD CONSTRAINT "PK_Languages"
    PRIMARY KEY ("LanguageId")
    ALTER TABLE "Languages"
    ADD CONSTRAINT "UK_Languages"
    UNIQUE ("MnemonicId")
    --ProductDesc
    CREATE TABLE "ProductDesc" (
         "Comment" NCLOB
         , "PlainComment" NCLOB
         , "Description" NVARCHAR2(250)
         , "DescriptionText" NCLOB
         , "PlainDescriptionText" NCLOB
         , "LanguageId" NVARCHAR2(12)
         , "ProductId" RAW(16)
    ALTER TABLE "ProductDesc"
         ADD CONSTRAINT "NN_ProductDescM01" CHECK ("LanguageId" IS NOT NULL)
    ALTER TABLE "ProductDesc"
         ADD CONSTRAINT "NN_ProductDescM02" CHECK ("ProductId" IS NOT NULL)
    ALTER TABLE "ProductDesc"
    ADD CONSTRAINT "PK_ProductDesc"
    PRIMARY KEY ("ProductId", "LanguageId")
    ALTER TABLE "ProductDesc"
    ADD CONSTRAINT "FK_ProductDesc1"
    FOREIGN KEY("ProductId") REFERENCES "Products" ("ProductId")
    ALTER TABLE "ProductDesc"
    ADD CONSTRAINT "FK_ProductDesc2"
    FOREIGN KEY("LanguageId") REFERENCES "Languages" ("MnemonicId")
    /The view:
    --ProductView
    CREATE OR REPLACE VIEW "vwProducts"
    AS
         SELECT
               "Products"."CatalogId"
              , "ProductDesc"."Comment"
              , "ProductDesc"."PlainComment"
              , "ProductDesc"."Description"
              , "ProductDesc"."DescriptionText"
              , "ProductDesc"."PlainDescriptionText"
              , "Products"."Image"
              , "Languages"."MnemonicId" "LanguageId"
              , "Products"."MnemonicId"
              , "Products"."ProductId"
              , "Products"."ProductParentId"
              , TRIM(NVL("ProductDesc"."Description" || ' ', '') || NVL("ParentDescriptions"."Description", '')) "FullDescription"
         FROM "Products"
         CROSS JOIN "Languages"
         LEFT OUTER JOIN "ProductDesc"
         ON "Products"."ProductId" = "ProductDesc"."ProductId"
         AND "ProductDesc"."LanguageId" = "Languages"."MnemonicId"
         LEFT OUTER JOIN "ProductDesc" "ParentDescriptions"
         ON "Products"."ProductParentId" = "ParentDescriptions"."ProductId"
         AND ("ParentDescriptions"."LanguageId" = "Languages"."MnemonicId")
    /The varray:
    --CustomType VARRAY
    CREATE OR REPLACE TYPE Varray_Params IS VARRAY(100) OF NVARCHAR2(1000);
    /The function:
    --FilterFunction
    CREATE OR REPLACE FUNCTION "fnProductFilter" (
         parCatalogId "Products"."CatalogId"%TYPE,
         parLanguageId                    NVARCHAR2 := N'it-IT',
         parFilterValues                    OUT Varray_Params
    RETURN INTEGER
    AS
         varSqlCondition                    VARCHAR2(32000);
         varSqlConditionValues          NVARCHAR2(32000);
         varSql                              NVARCHAR2(32000);
         varDbmsCursor                    INTEGER;
         varDbmsResult                    INTEGER;
         varSeparator                    VARCHAR2(2);
         varFilterValue                    NVARCHAR2(1000);
         varCount                         INTEGER;
    BEGIN
         varSqlCondition := '(T_Product."CatalogId" = HEXTORAW(:parentId)) AND (T_Product."LanguageId" = :languageId )';
         varSqlConditionValues := CHR(39) || TO_CHAR(parCatalogId) || CHR(39) || N', ' || CHR(39 USING NCHAR_CS) || parLanguageId || CHR(39 USING NCHAR_CS);
         parFilterValues := Varray_Params();
         varSql := N'SELECT FilterValues.column_value FilterValue FROM TABLE(Varray_Params(' || varSqlConditionValues || N')) FilterValues';
         BEGIN
              varDbmsCursor := dbms_sql.open_cursor;
              dbms_sql.parse(varDbmsCursor, varSql, dbms_sql.native);
              dbms_sql.define_column(varDbmsCursor, 1, varFilterValue, 1000);
              varDbmsResult := dbms_sql.execute(varDbmsCursor);
              varCount := 0;
              LOOP
                   IF (dbms_sql.fetch_rows(varDbmsCursor) > 0) THEN
                        varCount := varCount + 1;
                        dbms_sql.column_value(varDbmsCursor, 1, varFilterValue);
                        parFilterValues.extend(1);
                        parFilterValues(varCount) := varFilterValue;
                   ELSE
                        -- No more rows to copy
                        EXIT;
                   END IF;
              END LOOP;
              dbms_sql.close_cursor(varDbmsCursor);
         EXCEPTION WHEN OTHERS THEN
              dbms_sql.close_cursor(varDbmsCursor);
              RETURN 0;
         END;
         FOR i in parFilterValues.first .. parFilterValues.last LOOP
              varSeparator := ', ';
         END LOOP;
         RETURN 1;
    END;
    /The procedures:
    --Procedure presenting anomaly\bug
    CREATE OR REPLACE PROCEDURE "spProductCount" (
         parCatalogId "Products"."CatalogId"%TYPE,
         parLanguageId NVARCHAR2 := N'it-IT',
         parRecords OUT NUMBER
    AS
         varFilterValues Varray_Params;
         varResult INTEGER;
         varSqlTotal VARCHAR2(32000);
    BEGIN
         parRecords := 0;
         varResult := "fnProductFilter"(parCatalogId, parLanguageId, varFilterValues);
         varSqlTotal := 'BEGIN
         SELECT count(DISTINCT T_Product."ProductId") INTO :parCount FROM "vwProducts" T_Product
              WHERE ((T_Product."CatalogId" = HEXTORAW(:parentId)) AND (T_Product."LanguageId" = :languageId ));
    END;';
         EXECUTE IMMEDIATE varSqlTotal USING OUT parRecords, varFilterValues(1), varFilterValues(2);
    END;
    --Procedure NOT presenting anomaly\bug
    CREATE OR REPLACE PROCEDURE "spProductCount2" (
         parCatalogId "Products"."CatalogId"%TYPE,
         parLanguageId NVARCHAR2 := N'it-IT',
         parRecords OUT NUMBER
    AS
         varFilterValues Varray_Params;
         varResult INTEGER;
         varSqlTotal VARCHAR2(32000);
    BEGIN
         parRecords := 0;
         varSqlTotal := 'BEGIN
         SELECT count(DISTINCT T_Product."ProductId") INTO :parCount FROM "vwProducts" T_Product
              WHERE ((T_Product."CatalogId" = HEXTORAW(:parentId)) AND (T_Product."LanguageId" = :languageId ));
    END;';
         EXECUTE IMMEDIATE varSqlTotal USING OUT parRecords, parCatalogId, parLanguageId;
    END;Edited by: 835125 on 2011-2-9 1:31

    835125 wrote:
    Using VARRAY was the only way I found to transform comma seprated text values (e.g. "'abc', 'def', '123'") in a collection of strings.A varray is just a functionally crippled version of a nested table collection type, with a defined limit you probably don't need. (Why 100 specifically?) Instead of
    CREATE OR REPLACE TYPE varray_params AS VARRAY(100) OF NVARCHAR2(1000);try
    CREATE OR REPLACE TYPE array_params AS TABLE OF NVARCHAR2(1000);I don't know whether that will solve the problem but at least it'll be a slightly more useful type.
    What makes you think it's a memory leak specifically? Do you observe session PGA memory use going up more than it should?
    btw good luck with all those quoted column names. I wouldn't like to have to work with those, although they do make the forum more colourful.
    Edited by: William Robertson on Feb 11, 2011 7:54 AM

  • Memory leak using repeater tag

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    Link to Microsoft Connect issue
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  • Nasty memory leak using sockets inside threads

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    LINE TEXT
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            743d2641 AcGenral!NS_WRPMitigation::APIHook_RegOpenKeyExW+0x00000024
            7527a246 crypt32!RegOpenHKCUKeyExU+0x00000055
            7527de26 crypt32!OpenSubKeyEx+0x00000108
            7527e4d8 crypt32!OpenSubKey+0x00000015
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            75281a2f crypt32!EnumPhysicalStore+0x00000162
            75281d0e crypt32!I_CertDllOpenSystemStoreProvW+0x0000015c
            752c9fce crypt32!I_CertDllOpenSystemStoreProvA+0x0000006c
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    Might ask them here about this.
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    Regards, Dave Patrick ....
    Microsoft Certified Professional
    Microsoft MVP [Windows]
    Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

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  • Memory leak using GWT 1.4 and JDK 1.5

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    Subject: Memory Leak while using thin client.
    From: [email protected] (Alon Albert)
    Newsgroups: weblogic.developer.interest.jndi
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